Kenwood DV-K751 User manual

In compliance with Federal Regulations, following are reproduc-
tions of labels on, or inside the product relating to laser product
safety.
KENWOOD-Crop. certifies this equipment conforms to DHHS
Regulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.
DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM
Caution : No connection of ground line if disassemble the
unit. Please connect the ground line on rear
panel, PCBs, Chassis and some others.
NOTE : Please replace the mechanism PCB
(W02-266x-05) with new one, if it is
malfunction.
CD/VIDEO-CD/DVD PLAYER
DV-K751/S701
SERVICE MANUAL
© 1998-8/B51-5468-00 (K/K) 3547
Illust. is DV-K751.
* Refer to parts list on page 33.
73
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1
MIC 2MIC 1
POWER
-ON –OFF
ON / STANDBY
SHUTTLE
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MIC LEVEL
MIC 1 MIC 2
FL
DISPLAY
(PCM/BIT STREAM)
COAXIAL OPTICAL
DIGITAL OUTPUT
CENTER
S VIDEO
OUTPUT
VIDEO
OUTPUT
MIX LINE
OUTPUT
SUB
WOOFER
SURROUNDFRONT
6CH. OUTPUT
L
R
1
2
SYSTEM
CONTROL
Knob
(K29-6835-22) Indicator (B12-0311-04)
AC power cord *
(E30-)
Phono jack
(E63-1064-05)
Phono jack
(E63-1052-05)
Power cord bushing
(J42-0083-05)
Phono jack
(E11-0366-05)
Knob
(K27-2249-04)
Knob
(K29-6835-22)
Phono jack
(E63-0128-05)
Phono jack
(E63-0122-05) Cylindrical receptacle
(E56-0014-05)
Oscillating module
(W02-1114-05)
Dressing panel
(A21-3728-03)
Knob
(K29-6677-03) Panel * (A60-)
Dressing panel
(A21-3627-12)
Miniature phone jack
(E11-0188-05)
Knob
(K29-6679-03)
Front glass
(B10-2386-12) Knob
(K29-6835-22) Knob
(K29-6945-04)
DV-K751(K)COVER1,1( 98.12.1215:04 y[W 2

Audio
(E30-0505-05) (E30-1427-05) (E30-2365-05)
(E30-2733-05)
cord (Red, White) ...... (3)
Remote
(A70-1231-05): RC-D0703: M2T1E1
(A70-1243-05): RC-D0704: K
(A70-1244-05): RC-D0706: M1C1
Battery cover (A09-1105-05)
control unit............. (1) Batteries(R6/AA) ................. (2)
Digitalcord (Orange)......... (1)
Video cord (Yellow).............. (1)
System control cord ......... (1)
AC
(E03-0115-05)
plug adaptor ............. (1)
Use to adapt the plug on the power cord to the shape
of the wall outlet.
(Accessory only for regions where use is necessary.)
DV-K751/S701
2
CONTENTS / ACCESSORIES
CONTENTS / ACCESSORIES ...................................2
CAUTIONS...................................................................3
CONTROLS.................................................................4
BLOCK DIAGRAM.......................................................8
CIRCUIT DESCRIPTION.............................................9
ADJUSTMENT.......................................................... 10
PARTS DESCRIPTIONS...........................................12
PC BOARD ................................................................13
SCHEMATIC DIAGRAM............................................17
EXPLODED VIEW .....................................................30
PARTS LIST...............................................................33
SPECIFICATIONS.....................................................43
Contents
Accessories
DV-K751(K)COVER1,1( 98.12.1215:04 y[W 3

DV-K751/S701
3
CAUTIONS
Operation to reset
The microprocessor may fall into malfunction (impossibility to operate
erroneousdisplay,etc.)whenthepowercord is unplugged while power
is ON or due to an external factor. In this case, execute the following
procedure to reset the microprocessor and return it to normal condi-
tion.
÷Please note that resetting the microprocessor clears the contents
stored in, it returns the microprocessor to the condition when it left
the factory.
Perform the following operation.
1Press the POWER key to the ON position.
2Press the ON/STANDBY ( ) key to ON.
3Wait for a few seconds to ensure that the display shows “NO
DISC”.
4While holding the 7key, press and hold the ON/STANDBY
() key until “INITIAL OK!” appears.
NO DISC
Note related to transportation and move-
ment
Before transporting or moving this unit, be sure to remove any
disc from it and carry out the following operation.
1.Press the POWER key to the ON position.
2.Press the ON/STANDBY ( ) key to ON.
3.Wait a few seconds and verify that the display shown appears.
4.Set the POWER key to OFF.
Operation to reset
The microprocessor may fall into malfunction (impossibility to operate
erroneousdisplay,etc.)whenthepowercord is unplugged while power
is ON or due to an external factor. In this case, execute the following
procedure to reset the microprocessor and return it to normal condi-
tion.
÷Please note that resetting the microprocessor clears the contents
stored in, it returns the microprocessor to the condition when it left
the factory.
Perform the following operation.
1Press the MAIN POWER key to the ON position.
2Press the REMOTE POWER key to ON.
3Wait for a few seconds to ensure that the display shows “NO
DISC”.
4Whileholdingthe7key,pressandholdtheREMOTEPOWERkey
until “INITIAL OK!” appears.
NO DISC
Note related to transportation and move-
ment
Before transporting or moving this unit, be sure to remove any
disc from it and carry out the following operation.
1.Press the MAIN POWER key to the ON position.
2.Press the REMOTE POWER key to ON.
3.Wait a few seconds and verify that the display shown appears.
4.Set the MAIN POWER key to OFF.
WITH ON/STANDBY KEY
WITH REMOTE POWER KEY
DV-K751(K)COVER1,1( 98.12.1215:04 y[W 6

DV-K751/S701
4
CONTROLS
73
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MIC 2MIC 1
POWER
-ON –OFF
ON / STANDBY
SHUTTLE
0
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/
MIC LEVEL
MIC 1 MIC 2
FL
DISPLAY
168
32 4 5 7
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DVD VCD CD
P.B.C. DOLBY DIGITAL RANDOM PROG. STEREO
ANGLE
PCM
REPEAT ALL
LR
TITLE CHAPTER TRACK
A B
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KARAOKE
9
POWER
-ON –OFF
Display/Main unit (DV-K751)
L,STEREO,Rindicators
Character information display
Operation indicators
3:Play
8:Pause
DVD,VCD, CD indicators
Specialplayback related indicators
Display
VCD and CD related indicators
DVD related indicators
1ON/STANDBY ( ) key
Press to turn power of the unit from on to standby or vice versa.
2Standby indicator
3Remote control sensor
4FL DISPLAY key
5DVD indicator
Lights when a DVD disc is played.
6Disc tray
7Open/Close (0) key
8SHUTTLE (1,¡) keys
9POWER ( POWER) key
Press to turn the power of the unit between the standby and off
modes.
0MIC 1 and MIC 2 jacks
!MIC 1 level
up :
down :
@MIC 2 level
up :
down :
#Skip down (4) / up (¢) keys
$Still/Pause ( ) key
%Stop (7) key
^Play (3) key
* Thepanel
indications are
variabledepending
on the area where
the nuit is
marketed.
About the standby mode
While the standby indicator is lit, a small amount of power is supplied to the system to back up the memory. This is called th
standby mode. Under that condition, the system can be turned ON by the remote control unit.
73
¢4
¡1
POWER
-ON –OFF
ON / STANDBY
SHUTTLE
0
w∑8
/
TEXT
DISPLAY ALL INFO. TITLE SEARCH REPEAT
FL
DISPLAY
168
32 4 5 7
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DVD VCD CD
P.B.C. DOLBY DIGITAL RANDOM PROG. STEREO
ANGLE
PCM
MPEG
REPEAT ALL
LR
TITLE CHAPTER TRACK CD TEXT
A B
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9
Display /Main unit (DV-S701)
L,STEREO,Rindicators
Character information display
Operation indicators
3:Play
8:Pause
DVD,VCD, CD indicators
Specialplayback related indicators
About the standby mode
While the standby indicator is lit, a small amount of power is supplied to the system to back up the memory. This is called the
standby mode. Under that condition, the system can be turned ON by the remote control unit.
Display
VCD and CD related indicators
DVD related indicators
1ON/STANDBY ( ) key
Press to turn power of the unit from on to standby or vice versa.
2Standby indicator
3Remote control sensor
4FL DISPLAY key
5DVD indicator
Lights when a DVD disc is played.
6Disc tray
7Open/Close (0) key
8SHUTTLE (1,¡) keys
9POWER key
Press to turn the power of the unit between the standby and off
modes.
0TEXT DISPLAY key
!ALL INFO. key
@TITLE SEARCH key
#REPEAT key
$Skip down (4) / up (¢) keys
%Still/Pause ( ) key
^Stop (7) key
&Play (3) key
DV-K751(K)COVER1,1(98.12.1215:04 y[W 7

DV-K751/S701
5
CONNECTIONS
(PCM/BIT STREAM)
COAXIAL OPTICAL
DIGITAL OUTPUT
CENTER
S VIDEO
OUTPUT
VIDEO
OUTPUT
MIX LINE
OUTPUT
SUB
WOOFER
SURROUNDFRONT
6CH. OUTPUT
L
R
1
2
SYSTEM
CONTROL
OPTICALIN/Opticalfiber cable (commercially available)
Monitor TV
(commercially available)
DV-S701(OTHER AREA)/DV-K751
To wall AC
outlet
Notes
Notes
COAXIALIN/Digital cord(75Ωcoaxial)(provided)
AVCONTROLCENTER(soldseparately)or
receiver(soldseparately)
VIDEOOUT/Videocord(75Ωcoaxial)(commerciallyavailable)
S-VIDEOIN
S-VIDEOOUT/S-VIDEOcord(commerciallyavailable)
VIDEOIN
CENTERIN/Audiocord(provided)
SUBWOOFERIN/Audiocord(provided)
FRONTL/RIN/Audiocord(provided)
SURROUNDL/RIN/Audiocord(provided)
S-VIDEOIN/S-VIDEOcord(commerciallyavailable)
VIDEOIN/Videocord(75Ωcoaxial)(provided)
Connect the cords and cables accordingto the jacks availableon the connectedAV receiver.
*If you want to use
the macro function
of a KENWOOD AV
CONTROLCENTER
(soldseparately),
connect this player
to a wall AC outlet.
Be sure to set the
POWER switch on
the front panel of
this unit to OFF
when you are going
to leave the unit
unattended for
going out of the
house, etc.
Make connection as shown below. When connecting the
related system components, refer also to the instruction
manuals of the related components.
Caution: Do not plug in the power lead until all connec-
tions are completed.
1.Connect all cords firmly. If connections are loose, there could be loss of sound or noise produced.
2.When plugging and unplugging connection cords, be sure to first remove the power cord from the AC outlet. Plugging/unplugging
connection cords without removal of the power cord can cause malfunctions or damage to the unit.
TheVIDEOOUTPUTjacksshouldbeconnecteddirectlytotheTV.Do
not connect them to the TV via a VCR. Otherwise the played video
may be disturbed due to the copy protection function.
Initial setup
Set initial setup [6. TV Aspect] according to the aspect ratio (4:3 or
16:9) of your TV.
SYSTEMCONTROL IN/System control cord(provided)
Stereo system (commercially available)
* The connected components shown here are typical examples.
(PCM/BIT STREAM)
COAXIAL OPTICAL
DIGITAL OUTPUT
S VIDEO
OUTPUT
VIDEO
OUTPUT
AUDIO
OUTPUT
L
R
1
1
2
2
SYSTEM
CONTROL
OPTICALIN/Opticalfiber cable (commercially available)
Monitor TV
(commercially available)
DV-S701(U.S.A.)
To wall AC
outlet
Notes
Notes
COAXIALIN/Digital cord(75Ωcoaxial)(provided)
VIDEOOUT/Videocord(75Ωcoaxial)(commerciallyavailable)
S-VIDEOIN
S-VIDEOOUT/S-VIDEOcord(commerciallyavailable)
VIDEOIN
FRONTL/RIN/Audiocord(provided)
S-VIDEOIN/S-VIDEOcord(commerciallyavailable)
VIDEOIN/Videocord(75Ωcoaxial)(provided)
Connect the cords and cables according to the jacks available on the connected AV receiver.
*If you want to use
the macro function
of a KENWOOD AV
CONTROLCENTER
(soldseparately),
connect this player
to a wall AC outlet.
Be sure to set the
POWER switch on
the front panel of
this unit to OFF
when you are going
to leave the unit
unattended for
going out of the
house, etc.
Make connection as shown below. When connecting the
related system components, refer also to the instruction
manuals of the related components.
Caution: Do not plug in the power lead until all connec-
tions are completed.
1.Connect all cords firmly. If connections are loose, there could be loss of sound or noise produced.
2.When plugging and unplugging connection cords, be sure to first remove the power cord from the AC outlet. Plugging/unplugging
connection cords without removal of the power cord can cause malfunctions or damage to the unit.
SYSTEMCONTROL IN/System control cord(provided)
DV-K751(K)COVER1,1( 98.12.1215:04 y[W 10

DV-K751/S701
6
CONTROLS
VIRTUAL
SURR. DISPLAY OPEN
/CLOSE
0
123
456
A-B REPEAT
REPEAT
789
CLEAR P.MODE
0
ENTER
TITLE MENU
RETURN ON SCREEN
4¢73
1¡
8
SUB TITLE
TITLE
SEARCH
ANGLE AUDIO MEMORY
TEXT
DISPLAY
CD TEXT
ALL INFO. SET UP
17
3
4
6
8
5
ON/
STANDBY
POWER
2
Remote control unit (DV-S701 U.S.A.)
The remote control unit incorporates the basic operation keys as well as a variety of applied operation keys so that it can be
used in a wide range of purposes.
Use care to store the remote control unit in a safe place so as not to lose it.
Model: RC-D0704
Infrared ray system
1VIRTUAL SURR. key
2POWER (ON/STANDBY) key
3CD, VCD and DVD related control keys
Numeric (0 to 9) keys
CLEAR key
P.MODE key
A-B REPEAT key
REPEAT key
4CD, VCD and DVD related control keys
Cursor (%,fi,@,#) keys
ENTER key
Pause (8) key
Forward and reverse search (1,¡) keys
TITLE key
MENU key
RETURN key
ON SCREEN key
Skip down (4) and Skip up (¢) keys
Stop (7) key
Play (3) key
5TV monitor related control keys
ANGLE key
AUDIO key
SUB TITLE key
MEMORY key
SET UP key
6CD-TEXT related control keys
TEXT DISPLAY key
ALL INFO. key
TITLE SEARCH key
7DISPLAY key
8OPEN/CLOSE (0) key
VIRTUAL
SURR. DISPLAY OPEN
/CLOSE
123
456
A-B REPEAT
REPEAT
789
CLEAR P.MODE
0
TITLE MENU
RETURN ON SCREEN
4¢
ANGLE AUDIO SUB TITLE MEMORY
73
1¡
8
ASSIST
VOCAL
KARAOKE HIT
MASTER SET UP
KARAOKE
MODE MELODY DIGITAL ECHO
REQUEST KEY CONTROL
IÈ S i
8
3
4
5
6
ENTER
0
POWER
STEREO
7
2
1
Remote control unit (DV-K751)
The remote control unit incorporates the basic operation keys as well as a variety of applied operation keys so that it can be
used in a wide range of purposes.
Use care to store the remote control unit in a safe place so as not to lose it.
Model: RC-D0706
Infrared ray system
1VIRTUAL SURR. key
2POWER ( ) key
3CD, VCD and DVD related control keys
Numeric (0 to 9) keys
CLEAR key
P.MODE key
A-B REPEAT key
REPEAT key
STEREO key
4CD, VCD and DVD related control keys
Skip down (4) and Skip up (¢) keys
Stop (7) key
Play (3) key
Cursor (%,fi,@,#) keys
ENTER key
Pause (8) key
Forward and reverse search (1,¡) keys
TITLE key
MENU key
RETURN key
ON SCREEN key
5TV monitor related control keys
ANGLE key
AUDIO key
SUB TITLE key
MEMORY key
SET UP key
6Karaoke-related control keys
KARAOKE key
HIT MASTER key
ASSIST VOCAL key
KARAOKE MODE key
MELODY key
DIGITAL ECHO (fi:Down/%:Up) keys
REQUEST key
Flat( IÈ
)key
Natural ( ) key)
Sharp ( #) key
7DISPLAY key
8OPEN/CLOSE (0) key
DV-K751(K)COVER1,1( 98.12.1215:04 y[W 11

DV-K751/S701
7
CONTROLS
VIRTUAL
SURR. DISPLAY OPEN
/CLOSE
0
123
456
A-B REPEAT
REPEAT
789
CLEAR P.MODE
0
ENTER
TITLE MENU
RETURN ON SCREEN
4¢73
1¡
8
SUB TITLE
TITLE
SEARCH
ANGLE AUDIO MEMORY
TEXT
DISPLAY
CD TEXT
ALL INFO. SET UP
17
3
4
6
8
5
POWER
STEREO
2
Remote control unit (DV-S701 OTHER AREA)
The remote control unit incorporates the basic operation keys as well as a variety of applied operation keys so that it can be
used in a wide range of purposes.
Use care to store the remote control unit in a safe place so as not to lose it.
Model: RC-D0703
Infrared ray system
1VIRTUAL SURR. key
2POWER ( ) key
3CD, VCD and DVD related control keys
Numeric (0 to 9) keys
CLEAR key
P.MODE key
A-B REPEAT key
REPEAT key
STEREO key
4CD, VCD and DVD related control keys
Cursor (%,fi,@,#) keys
ENTER key
Pause (8) key
Forward and reverse search (1,¡) keys
TITLE key
MENU key
RETURN key
ON SCREEN key
Skip down (4) and Skip up (¢) keys
Stop (7) key
Play (3) key
5TV monitor related control keys
ANGLE key
AUDIO key
SUB TITLE key
MEMORY key
SET UP key
6CD-TEXT related control keys
TEXT DISPLAY key
ALL INFO. key
TITLE SEARCH key
7DISPLAY key
8OPEN/CLOSE (0) key
DV-K751(K)COVER1,1( 98.12.1215:04 y[W 14

DV-K751/S701
8
BLOCK DIAGRAM
ELECTRIC UNIT
(X25-616X-XX)
(W02-2658-05)
POWER SUPPLY
SWITCHING
(X14-48XX-XX)
DISPLAY UNIT (X14-48XX-XX) (B/2)
KARAOKE
(X14-48XX-XX)
PROCESSOR UNIT D.R.I.V.E
DVD CIRCUIT
DVD MECHA.
(D40-1580-05)
DV-S701/DV-K751
D+5V/A+8V/D+8V/M+12V/
A+14V/A-14V/FL-35V
+12V
-12V
SLKCK/CLDCK
DACMUTE/IW0/
EMPH/IW1
SCLK
SRDT
u-COM+5V
D+3.3V/A+5V
M+9V/D+5V/
384fs
POWER
STB/CLK/DATA
MICMUT
ECHOMUT
MIC
ECHO
IEC958
ML/MC/MD
MICMUT
DOUT0
786fs
DACMUTE
BCK/LRCK
MCK
DATA0
DOUT1
DOUT2
Lch
Rch
ZERO0
DACMUTE
MIC IN
BCK
LRCK
DATA
R
L
DATA
MCK
BCK/LRCK
PMUTE
CD-2CH
ECHO MIC
Lch
Rch
MIXR
MIXL
Rch
Lch
Rch
Lch MIX L
MIX R
CD-2CH
BCK/LRCK
ML/MC/MD
MCK
DATA1
DACMUTE
ZERO1
SR
SL
SR
SL
ML/MC/MD
BCK/LRCK
MCK
DATA2
DACMUTE
ZERO2
SW
CT
SW
CT
AMUTE
STB
DATA/CK STB
STB
DATA/CK
SR
SL
SW
CT
NR1/NR2/NR3
DASDATA
DASMC/
DASML/
NR1/
NR2/
NR3
Y
C
ACC. -DRIVE/LD-CONT. RF/FE/TE/SENS. SW
MIXR
MIXL
SR
CT
SW
SL
SW
CT
SR
SL
Y/C1
Y/C2
COMP COMP
Y/C2
Y/C1
Y/C2
Y/C1
COMP
SBCK/SUBC/
DQSY/
BCK/LRCK
24bit L 24bit R
FL-35V/D+5V
W02-2662-05 VEP96533C
W02-2661-05 VEP96533B
W02-2660-05 VEP96533A
DVD CIRCUIT MAKER PARTS No.
A+12V
SW1
SW2
KARA CONT1
KARA CONT2
STB
MIC SW
VOICEEDIT
SBUSY
SDATA
1
2
2
1
2
1
3
4
L
RR
L
MIX R
MIX L
FLAC
OP AMP, SURROUND
IC25
DECODER
CD-TEXT
SER.
16BIT
S-RAM
PAR.
IC23
IC26 IC29
u-COM
B
MUTE
MUTE
IC31 E
IC30
Q434 MUTE
Q424,425
DAC
IC3 (1/2) FILTER
IC18 (1/2)
FILTER
IC18 (2/2)
IC17
IC17
(2/2)
SWITCH
CONTROL
Q500,502
LED
DISPLAY
DRIVER
FL DOT DISPLAY FL
IC1 ED2
SENSOR
A1
REMOTE
SWITCH
KEY
MUTE
(2/2) (1/2)
Q103
33dB
(1/2)
33dB
Q104
MUTE (2/2)
Q101
C
IC4 (1/2) FILTER
IC3
DAC
IC5 (1/2)
FILTER
IC4 (2/2) IC5 (2/2)
D.R.I.V.E
24 BIT
IC2
A
F
Q407,409
MUTE
IC8,9 SELECT
MUTE
Q406,408
MUTE
Q403,405
MUTE
Q402,404
IC4
DAC
Q426,427
MUTE
G
IC13 (2/2)
FILTER
IC13 (1/2)
FILTER
IC5
DAC
Q428,429
MUTE
IC11 (1/2)
IC11 (2/2)
FILTER
FILTER
MUTE
CONTROL
Q437,439 Q438,440
MUTE
CONTROL
IC15,16
ADD
IC6
E. VOL
E. VOL
IC7
11.4dB
IC14 (2/2)
IC14 (1/2) Q411,413
Q410,412
MUTE
MUTE
Q415,417
Q414,416
MUTE
MUTE
IC12 (2/2)
IC12 (1/2)
11.4dB
11.4dB
11.4dB
Q210-213
Q204-208
Q203
Q209,237
FILTER
FILTER
Q236
NR + 6dB
Q200-202
6dB
75 DRIVER
75 DRIVER
75 DRIVER
IC2
Q600,601
IC32 COAX OUT
OPT OUT
1 L
2 R
OUTPUT
ANALOG
2V/510
1 L
2 R
I
1 Lch
2 Rch
3 SL
4 SR
6 SW
5 CT
G
Y/C OUT1
OUTPUT
1Vp-p/75
COMPONENT
2 COMP OUT2
1 COMP OUT1
286mVp-p/
1Vp-p/75
C75
OUTPUT
Y
S-VIDEO
A+5V
240V
H
MIC1
J101
J102
MIC2
J
-21
COAX 0.5Vp-p/75
OPTICAL
DIGITAL OUTPUT
-15dBm
DV-S701
DESTINATION
COUNTRY
U.S.A.
EUROPE
GENERAL MARKET M2
U.K. E T
K
YES
ABB. A, B, F, G, J
DESTINATION
COUNTRY
DVF-K751
CHINA
GENERAL MARKET C
M
ABB.
AC110V-
2V/510
6ch
OUTPUT
MUTE
CONT.
IC33 (1/2) IC33 (2/2)
SWITCHING
POWER SUPPLY
(W02-2658-X5)
D2,3
IC102
E.VOL
IC101
IC101
P1
IC103
IC103
Q105
DETECT
MIC D
SDATA
SBUSY
NO
C, D, E
NO
H
YES
I
YES
NO
A, B, H, I, J
NO
C, D, E, F, G
YES
YES
NO
1,2
NO
YES
3,4
NO
1-4
MIX OUT
(AUDIO OUT2)
AUDIO
OUT 1
DV-K751(K)COVER1,1( 98.12.1215:04 y[W 15

DV-K751/S701
9
CIRCUIT DESCRIPTION
PORT#32 PORT#33 PORT#34 PORT#35
VOLTAGE DV-K751/S701 DV-K751/S701
DV-K751 DV-S701 MODEL NAME
5V
–– – –
DV-K751
4.58V
→(PLAY) MIC-1 DOWN TEXT DISPLAY (CD-TEXT)
– DVF-9010
3.75V
7(STOP) MIC-1 UP ALL INFO. (CD-TEXT)
– DV-2070
2.92V
(STILL/PAUSE) MIC-2 DOWN TITLE SERCH (CD-TEXT) – DVF-K7010
2.08V
(FWD SKIP) MIC-2 UP REPEAT – DVF5010
1.25V
(BWD SKIP) FL DISPLAY FL DISPLAY – DV-203
0.42V
OPEN/CLOSE POWER POWER – DV-S701
0V
Voltage matrix of microprocessor
Note: Please refer to DVF-7010(B51-5456-00) service manual if need the information of
microprocessor and the like.
DV-K751(K)COVER1,1( 98.12.1215:04 y[W 18

DV-K751/S701
10
ADJUSTMENT
Flate wave
Tangential adjust Tilt adjust
DC OUTPUT
(Bottom view)
FRONT
Minimum
DC level ( 1.6V)
0 [V]
No. ITEM INPUT
SETTING OUTPUT SETTING PLAYER SETTING ALIGNMENT POINT ALIGN FOR FIG.
< 1 > TANGENTIAL Tangential nut
< 2 > TILT Tilt nut
MECHANISM ADJUSTMENT PROCEDURE
DV DISC
Connect an oscillo-
scope to TL5206 and
chassis GND
(DVD main unit :
W02-266x-xx)
Minimum DC level
and flat wave. (a)
STILL
Note : Adjust to repeat No. < 1 > and < 2 > about 2~3 times by a hexagon driver on the bottom chassis of set,
then complete No. < 2 >.
: After complete adjustment, confirm to play MD, CD and Video CD disc the correct.
(a)
DV-K751(K)COVER1,1( 98.12.1215:04 y[W 19

No. ITEM INPUT
SETTING OUTPUT SETTING DVD SETTING ALIGNMENT POINT ALING FOR FIG.
DVD DISC : 100% and 75% color bar
OUTPUT : Video output (composite or component / RCA PIN)
NTSC
1VIDEO
LEVEL(Y) DISC
100%COLOR
BAR
Connect the TV
monitor and the
oscilloscope STILL VR3232
(MAIN CBA) (WHITE)
1.00V
±0.05Vp-p (b)
2VIDEO
LEVEL(C) DISC
75%COLOR
BAR
Connect the TV
monitor and the
oscilloscope STILL VR3233
(MAIN CBA) (CYAN)
0.7V
±0.02Vp-p (c)
3VIDEO LEVEL
(Cb) (Cr)
DISC
100%COLOR
BAR
Connect the TV
monitor and the
oscilloscope STILL VR3231
(MAIN CBA) (Cb) (Cr)
0.648V
±0.03Vp-p (d)
PAL
1VIDEO
LEVEL(Y) DISC
100%COLOR
BAR
Connect the TV
monitor and the
oscilloscope STILL VR3232
(MAIN CBA) (WHITE)
1.00V
±0.05Vp-p (b)
2VIDEO
LEVEL(C) DISC
75%COLOR
BAR
Connect the TV
monitor and the
oscilloscope STILL VR3233
(MAIN CBA) (CYAN)
0.66V
±0.02Vp-p (c)
WHITE
BURST BURST
NTSC PAL
1.00V
±0.05Vp-p 1.00V
±0.05Vp-p
NTSC PAL
0.7V
±0.02Vp-p 0.66V
±0.02Vp-p
100% COLOR BAR (oscilloscope) 75% COLOR BAR (oscilloscope)
COLOR BAR (TV)
(b) (c)
CYAN
WHITE VELLO
CYAN GREEN MAGENTA RED BLACK BLUE
MAIN C.B.A
WHITE VELLO BLUE BACK
NTSC
Cb
0.648V
±0.03Vp-p
100% COLOR BAR (oscilloscope) 100% COLOR BAR (oscilloscope)
(d) (d)
CYAN RED
NTSC
0.648V
±0.03Vp-p
Cr
FP6201
FP5201 P6251
VR3231
VR3233
VR3232
FP4203 FP4201 P4251
FP2501
(COMPONENT SIDE)
11
DV-K751/S701
ADJUSTMENT
hL g 198.12.148:51 y[W 3

12
DV-K751/S701
PARTS DESCRIPTIONS
hL g 198.12.148:51 y[W 4

4
1
12
VOICEEDIT
ICP-N20
ROHMCORP.
A+5
D3.3
M+9
D+5
+12
CB Y
IC20
CR
IC13
SL
SR
SW
CNT
FR
MR
80
FL
ML
C220
Q233
C481
C460
W32
BUSY
SDATA
GND
SGND
C111
IC1
IC10
C44
C45
C47
C14
C13
C22
C21
C5
C6
C35
C43
C40
C4
C23
C41
C36
C7
C15
R12
Q25
Q12
Q2
Q7
Q22
Q26
Q23
Q16
Q6
Q24
Q21
Q11
Q1
C46
J2
L207
L206
C222
C206
C221
C216
C253
C243
C250
C252
C255
L209
L208
C249
C234
L201
L200
L203
L202
C480
C503
C514 C519
C537
C542
C506 C511
C479
C459
C461
C458 C478
J1
C526
C527
C530
C531
C528
R452
R453
C473
C453
C452
C407
C406
C472
J3
A1
COMPONENT VIDEO OUTPUT
N2
BLU/RED
GRN
YEL
RED
RED
BLK
ORG
1
1
IC5
1
8
IC17
IC11
21
22
20
CN5
IC21
IC8
IC6
IC26
IC15
R38
Q20
C31
C30
C29
Q17
R4
WH2
E3
C421
C400
C426
C427
E2
L204
Q232
J9
J8
WH3
J10
J11
C401
C489
C488
C466
C451
C450
C467
C471
C470
IC24
WH1
C504 C512
C520
C420
CN6
CN4
L211
J4
J5
CN12
CN9
CN10
CN3
CN8
E1
WH4
L199
IC35
VIDEO
J6
MI-COM
DAC
CD TEXT
R30
PWER
SUPPLY
COMPONENT
LPF
R588
Q29
R255
R288
C117
R148
R153
R155
R131
R132
R193
R192
R191
R160
R25
R24
D101
D480
D201
D7
Q209
IC33
W31
Q239
Q206
Q234
Q230
Q235
Q229
Q210
R234
R236
R230
R226
R218
R217
R216
R220
R210
R209
R211
R293
R292
IC37
R285 R284
R302
R303
R263
R265
R266
R259
R283
R282R281
C205
C217
Q219
Q220
Q223
Q224
Q225
R304
R305 R275
R277
R278
R271
Q240
Q218
W1
Q441
R247
R249
R250
C424
C425
Q200
Q201
Q203
R296
R297
R206
R201
Q236
R298
R299
Q237
W38
Q31
Q213
D207
D208
D209
Q404
Q403 Q402
Q416
Q415 Q414
Q417
Q409
Q405
Q407
Q410
Q423
Q411 Q412
Q413
IC16
IC18
IC12
IC19
IC14
R412
R413
R550
R552
R562
R563
R565
R556
R555
R557
R559
R533
R516
R520
R515
R510
C565
R532
R530
R529
R531
R527
R525
R575
R578
R570
R498
R581
C529
R421
R425
R424
R417
R504
R499
R473
R472
R474
R485 R484
R475
C535
C539
C532
Q30
C533
R44
C543
C502
C508
C499
C501
C500
C516
C518
C510
C497
C408
C405
C410
C409
C404
C416
C415
C412
C411
R420
C413
C485 C484
C475
C474
C477
C476
C496
C487
C486
C454
C419
C464
C465
C456
C455
C457
R118
R120
R116
D403
D424
D402
D401
IC27
IC7
IC4
IC30
C556
IC3
IC31
R629
R640
R604
C570
C569
C568
C567
C559
C560
IC9
C561
C562
C578
C579
C576
C564
C563
R523
C566
W16
W17
R634 C555
L210 C553
C554
Q434
Q435
R546
W14
W22
W21
Q432
R544
Q430
R542
Q431
R543
W19
R152
R623
R146
IC29
IC25
R133
R134
IC32
R49
R648
W6/
R642
W10
W23
R547
R583
Q436
D404
R585
Q437 R586
Q439
D212
D211
D210
R539
R100
R635
R151
W33/
R312 R311
C258
W35
IC34
R47 R46
R431
R590
R649
R650
Q102
Q101
R651
R50
L196
L198
C115
R430
Q228
X1
R610
17
14 8
20
1
21
2
13
1
34
5
114
15
28
81
16 9
BE
BE
BE
B
E
B
EBE
BE
B
E
B
E
BE
B
E
B
E
BE
B
E
B
E
B
E
BE
BE
B
E
BE BE
B
E
BE
B
E
BE
BE
BE
BE
BE
BE
BE
BE
BE
BE
BE
BE
BE
BE
BE
BE
BE
B
EBE
121
2
3
4
1
5
40
21
61
41
60
1
20
1
14
15 28
15
1
34
5
17
814
114
15
28
41
85
112
13
24
14
5
8
18
9
16
4
1
85
1
5
112
B
E
E
B
E
B
E
B
E
B
E
B
E
B
E
B
1
3
S
D
1
2
G
S
D
G
1
10
B
E
B
E
E
B
B
EE
B
2
2
41
85
41
85
14
15
28
R567
1
14
R571
R505
C414
R416
R576
R577
R432
BE
BE
BEBE
SDG
IC2
BE
R45
BE
5
43
1
B
E
8
1
R437
41
5
8
R514
BE
C495
R519
41
5
8
16 9
8
1
R579
12
1
13
24
4
5
8
R512
R575
85
41
5
8
4
1
5
8
41
R513
R511
R509
EB
1
9
18
15
81
OIG
SYSTEM
CONTROL
COAXIAL
OPTICAL
DIGITAL OUTPUT
FRONT
SURR
MIX LINE
OUTPUT
MIX LINE
OUTPUT
AUDIO OUTPUT
VIDEO
VIDEO OUTPUT
S-VIDEO1S-VIDEO2
X25-6160-00 (J70-1239-31)
C12
C28
C20
W4
IC22
R615
R614 R616
Q601
Q500
Q600
Q502
Q100
Q28
Q27
R239
R238
R237
R240
R254R256
R262
R196
R223
R222
R291
R290
R289
R564
R603
R602
R601
C208
C207
C109
C225
C604
C223
C224
C601
C600
C603
C602
Q440
C227
C226
C228
C235
C237
C236
R145
R144
R111
R130
R157
R185
R180
R179
R195
R194
R189
R161
R165
R159
R158
R166
R17
R19
R18
R9
R27
R26
R21
R20
R23
R22
R8R5
R3
R7
R6
R1
R28
R37
R31
R39
R33
R32
R35
R34
R40
R42 R41
D600
D102
D202
D4
D2
D3
D1
D9
C34
C39
Q9
Q8
Q10
C10
Q19 Q18
R13 R14
R11
C26
Q5
R15 R16
Q3 Q4
C2
Q15
Q13 Q14
Q205
Q221
Q211
Q231
R233
R232
R231
R235
R229
R228
R227
R251
R219
R221
R215
R214
R213
R212
R294
R295
R286
R287
R264
R268
R267
R261
R257
R260
R258
C203
C212
C215
C213
C214
C218
C219
C257C256
C239
C238
C241
C240
C247
C254
C251
D204
D206
D200
D205
D203
Q204
Q227
R274
Q222
Q217
R276
R280
R279
R273
R269
R272
R270
C245
C244
C246
Q226
Q208
Q207
Q212
R436
R248
R253
R252
D407
R508
R225
R205
R208
R207
R204
R200
R203
R202
C201
C200
C202
Q202
R224
C210
C209
C211
R308
R307
R43
R48
D11
D10
W36
Q421
Q420
Q419 Q418
Q408
Q406
R410
R411
R408
R409
R403
R402
R404
R407
R406
R405
R414
R551 R553
R536
R535
R537
R538
R554
R561
R560
R558
R521
R528
R522
R524
R526
R566
R609
R611
R568
R569
R580
R582
R446
R447
R449 R448
R440
R439
R441
R443
R442
R450
R458
R457
R459
R461 R460
R456
R451
R455 R454
R438
R422
R423
R415 R419 R418
R426
R434
R433
R435
R428
R427
R429
R462 R494
R493
R495
R497 R496
R492
R488
R487
R489
R491 R490
R506
R507
R500
R501
R503
R502
R486
R470
R469
R471
R468
R464
R463
R465
R467
R466
R482
R481
R483
R480
R479 R478
C525
C552
C498
C551
C549
R141
C112
C116
C402
C403
C418
C417
C483 C482
C491
C490
C469
C428
C429
C422
C423
C463
C468
C462
R140
R139
R138
R137
R122
R121
R124
R123
R117
R119
R129
D103
R618
R617
R631
Q428
R630
Q429
R633
R632
R626
Q426
R628
Q427
R627
R600
C548
C546
C545
R605
Q424
R607
Q425
R608
R606
R638
R639
R637
R636
R541
R540
W37
W15
C573
W3
C574
C571
W13
C572
W2
Q433
R545
W20
W24
D406
R613
IC28
R199
R591
W26
R612
R619
R625
R621
R620
R622
R624
R149
R150
R198
R147
R127 R126
R128
R178
R188
R187
R186
C100
C107
D100
IC23
R162
R163
R190
R174
R170
R171
R164
R641
R643
W5
D601
W9
W11
W7
W12
W8
R644
R645
R646 C110
Q422
R548
D405
R584
W25
Q438
R587
R534
R589
R142
L195
R113
R112
W27
W29W28
W34
L197
W30
C18
814
71
111
2212
IG
O
E
B
BE
EB
BE
BE
BE
EB
EB
EB
EB
EB
EB
EB
E
B
EB
EB
E
B
EB
EB
EB
EB
EB
EB
EB
EB
E
B
EB
E
B
EB
E
B
E
B
E
B
E
B
BE
BE
BE
BE
B
E
B
E
BE
BE
BE
BE
BE
BE
E
B
E
B
ABDFHJCEGI
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD (Component side view)
13 14
DV-K751(K)pcbsd2,2(98.12.1215:09 y[W 5

IC4
IC7
IC2
IC6
D102
D1
D5
D6
D4
Q105
Q101
Q103 Q104
D101
IC103
IC101
IC3
IC1
IC5
C63
R33
C64
C28
C29
R63
R112
R32
R54
R53
C30
R38
C60
R39
R52
C71
C76
C77
C78
C80
C79
C123
R23
C15
C14
C19 C17
C18 C16
C4
C3
C5
C8
C13
C12
C11
C20
C23
C22
C21
C26
C25 C24
R59
C9
R106
R105
R109 R110
R107
R108
R102
R103
R104
R101 R125
R126
R113
R131
R130
R114
C108
W115
C107
C104
C105 C106
R129
R120
R121
C118
R115
R116
R117
C103
C101
C102
R122
R123
R124
C113
W101
C120
C121
C114
C116
C7
C122
R111
R57
R56
R55
R17
R66
R18
R65
R30 R60
C69
C27
EB
EB
BE
14
5
8
C115
R118
R127 R128
C214
R29
C125
148
17
148
71
11
12
22
2333
34
44
14 1
15 28
4
1
5
8
14
5
8
3332
17
16
164
49
48
58
14
BE
C119
R73
1
KARAOKE MIC VOL
E2
E5
E1
E4
E6
DAC
LPF
OPEN/CLOSE
MIC 2 VOL
MIC 1 VOL
TIT.SEARCH
ALL INFO
TEXT DISP
DISP
DOWN UP DOWN UP
KARAOKE MIC AMP
REPEAT
24BIT
D.R.I.V.E. II
E8
WH3
WH3
WH101
STANDBY
STANDBY
WH1
WH2
S7
S6 S5
S10
S9
S8 S11 S12
S4 S3
S2
Q2
Q1
D2
S1
CN101
S13
IC102
E102 P103
E7
ED1
E9
D3
J101
E101 J102
P101
MIC2 MIC1
1
14
WH1
GND
+B
+B
-B
GND
VOLTL
BCK
DIN
LRCK
GND
D5V
VCC
VCC
GND
RESET
MUTE
EMPH
D5V
RESET
MUTE
NC
NC
NC
EMPH
NC
NC
D5V
D-GND
LRCK
BCK
DATA
MCK
CN2
+12V
L-CH
GND
R-CH
-12V
NC NC NC
GND
MUTE
GND
GND
R68
W53
W52
W70
C46
C39
C42
C47
C38
W54
C56
C58 C57
C55
C53
C54
R70
R69
W65
W64
W57
R72
CN3
C70
C75
W58
C51
C40
C52
C41
C68
C74
R74
R71
W71
W104
W112
W111
W109
W110
W107
W114
W113
W18
C6
W7
W13 W3
W12
W15
W14
R8
C59
C83
WH5
C84
W105
C1
W56
R41
R40
R49
R45R44
R46 R47
R43
R48
R42
C37
C32
C35
W69
C36
C43
C44
C45
W61
W50
W62
W63
W67
W66
W68
C48
W59
R35
R36
R34
C33
W51
W55
W60
W108
R1
R15 R16
R28
R11 R10
R9
69 1
R13 R12 R14
R4
R3
R2
R7
W16
W6
W4
W25
W23
W24
W21
W19
W10
W22
R24
E3
A1
C117
C109
C110
W103
W102
W20
W17
W8
W9
W29
W30
W26
W33
W32
W31
W1
W2
W5
CN1
W27
W28
W116
51
3
1
3
1
1
5
1
121
3
1
71
9
8
16
1
2 6
1
1
8
18
7
WH2
1
2
3
R50
C62 C61
R51
C65
C66
C67
W34
R26
R27
R25
R5
R6
W11
R62
R67
X14-4840-10 A/7 (J70-1238-11)
X14 E/7
X14 C/7
X14 G/7
X14 D/7
WH102
WH103
E
E
B
B
RED
WH4
X14 F/7
-B
-B
VOLTR
X14 B/7
KMOQSLNPRT
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD (Component side view)
15 16
DV-K751(K)pcbsd2,2(98.12.1215:09 y[W 6

ABDFHJCEGI
2
1
3
5
7
4
6
DV-K751 (X25-6160-24)
DV-S701 (X25-616X-XX)
SW
TRAY OUT SW TRAY IN
S0101 S0102
MOTOR
LOADING
M0101
MOTOR U.
TRAVERSE
M20001
FP0005
FP0101 FP2501
DAC MUTE
Q435
CONT.
Q434
INVERTER
P6251
SN104240DB
LNCQ01PS
PNC3207F
IC001 :
D002 :
D001 :
D001
D001 DETECTOR
DV-S701
SW20103
INNER
LIMITER SW FP0004
DV-K751
CN4
FP4201
H
FP6201
D002
FP0001
DISC
MOTOR
M
FP0003 FP0002 FP5201
B
G
FP4203
CN9
P4251
F
SWch
Cch
D401
SRch
SLch
24BIT 96KHz DAC
FRch
MUTE
FLch
Q424
Q425
MUTE
MIC ECHO
F
M
M
VEP96533C
W02-2662-05
MAKER PARTS No.
VEP96533A
VEP96533BW02-2661-05
W02-2660-05
DVD CIRCUIT 14
13
12
11
10
10
12
13
11
14
5DGND
YES
DESTINATION
GENERAL MARKET
CHINA
COUNTRY
C1
M1
ABB. UNIT No.
0-24 NO
DESTINATION
COUNTRY ABB.
GENERAL MARKET
U.S.A.
U.K.
EUROPE
K
T1
E1
M2
A
UNIT No. B
0-13
2-71 YES
NO
YES
YES
R119,130-134,149,
170,587,589,641,643
NO
IC8,
YES
9
NO
10
CN9, R116,137-140,
NO
148,171,610,642 7,8
W1,5,
YES
W4,6,15-17,
21,22,30
YES NO YES
L198
NO
J4
NO
J5
8
NO
YES
W5,7
589,641-643
R119,587,CN9,
NO
YES
IC8,
9
F10
YES
NO
NO YES
148,171,610
R137-140
YES
149,170
R130-134,
NO
YES NO
21,22
W4,15-17,
W1,6
YES
NO NO YES
L198
NO NO
YES YES YES
J5J4
YES NO
NO
5LOAD-M- 5
TRM-
TRM+
J-
J+
1
2
TP34
1
2
3
4
TRAY-OUT
GND 2
1
LOAD-M+
TRAY-IN
4
3
TP32
TP35
4.7
D3.3GND
D+3.3V
A5GND
A+5V
6
5
8
7
D+5V 21
20
19
786FS
DGND
+5V
R546
2.7K
+5V
C554 1000P
+5V
1000P
C553
+5V
0.01
C556 C520
330u16
+
+5V
51
4
3
2
VCC
+5V
20 786FS
D+5V
D5GND
D+5V
MGND
M+9V1
4
3
2
21
18
17
NRST
DASDATA
16
15
14
DASMC
DASML
DGND
BCK
LRCK
DGND
NRST
DASDATA
DASMC
DASML
DGND
17
16
19
18
13
12
15
14
13
12
11
10
BCK
LRCK
DOUT2
DOUT1
9
8
7
6
DOUT0
DGND
D+5V
384FS
13
6
26
26
R124 470
R129 100
14
27
28
R122 470
R123 330
+5V
2
+5V C555 5P
R634 1M
R629
L210
4.7
R569
W30
R121 100
R120 100
A5
R117 100
R116
100
R119
+
VCC
47
VCC
VCC
A2A3
6
VCC
C002
50.1
A1
10 A4
B1B4
B3 B2
8
90.1
C003
1
VCC
3
2
VCC
VCC
0.1
C004
A3
A2
A4
B4
A1
B1
B3
B2
1521189 7
10
C0001
ST SW+
ST SW-
J2
J1 1
2
VCC0
13
VCC
C005
0.1
11
12
15 0.1
14
GND2
VCC1
25
26
VCC1
1
2 VCC1
SRF1
GND1
SRF2
22
24
23
5
3
4
432
TP33
TP31
35
34
33 ST-SW-
TRV-M- 1
2
TRV-M+ 3
1TP30
30
31
VCC1
VCC
29
5
6
ST-SW+
A GND
VCC
7
SRF
1
C007 C008
8
7
9
18
16 C006
17
4
6
5
21
0.1 0.1
19
20
918 B1+B2
VCC2
A1
19
VCC2
20
21
8
7
6 VCC2
A3
GND
A2
17
16
10
11
VCC0
C009
2
1
3
24
22
23
0.1
VRIV
A4
VR
B3+B4
13
12
15
14
14
15
13
12 C0002
GND0
VCC0
10
11
VCC0
16
17 VCC
TP26
TP28
TP29
27
28
TP24 TP25
TP27 26
25
9
B1+B2
8
A1
A3
10
A2 11
CHINA
GENERAL MARKET
23
22
24
TP22 TP23
TP18 TP19 TP20 TP21
U.K.
13
14
A4
VR
12
B3+B4
EUROPE
COUNTRY
DESTINATION
COUNTRY
DESTINATION
U.S.A.
GENERAL MARKET
3 MIC
DACMUTE
DOUT2
DOUT1
DOUT0
DGND
D+5V
384FS
DGND
9
8
11
10
4
7
6
5
4
3
2
1
DACMUTE
MIC
AMUT
ECHO
IFL(CS)
IFS(CLK)
IFD(DATA)
DGND
AMUT
ECHO
2
1
4
3
2
1
3
6
+5V
C512
330u16
VCC
C548
560P
4.7
R561
VCC
+
C511 22u35
+5V VDD
R640
C510
0.1
4.7
100
R118
R560
R558 100
10
R559 100
DGND
CMD
DGND
DGND
DGND
AC3H
DGND
STATUS
DSPCLK
9
8
6
5
7
1-05
C
M
12
13
10
11
CR/R
DGND
DGND
Y/G
CB/B
DGND
T 2-05
E
ABB. (W02-266X-XX)
DVD CIRCUIT
22
21
ABB. (W02-266X-XX)
DVD CIRCUIT
K
M2 0-05
18
17
20
19
MUTE
RESET
2
1
BITI
BITO
FSI
5
4
3
R557 100
+
VCC
25
22
28
2
21
26
+5V
C504
330u16
VCC
C545
560P
+
28844
ACT-T-
F. COIL
+5V
L001
2.2uH
R002
C001
0.027
0
3
15K
VR001
12
+5V
PIN
GND
LD
6
7
+5V
8
21
20
19
ACT-F-
AGND
ACT-F+
2
3
4
5
24
25
22
23
T. COIL ACT-T+
1
TP7
TP13
26
H1-
VC-
H1+
2
3
1
2
3
1
ACT-T-
18
19
20
15
14
17
16
+5V
17
18
A GND
PIN
LD
16
21
22
ACT-F-
19
20
AGND
ACT-F+
TP8 TP9 TP10 TP11
TP14 TP15 TP16 TP17
TP12
13
12
9
10
11
24
23
ACT-T+
AGND
26
27
VC-
H1-
25
H1+
88 H3+
H3-
H2+
H2-
7
5
6
7
5
6
M2
M3
VC+
M1
11
9
10
11
10
9
TP1
4
5
7
6
1
2
3
32
31
H3-
H3+
29
H2-
H2+ 30
35
M2
34
33
VC+
M3
M1
TP2 TP3 TP4 TP5 TP6
DGND
YCH
NR3
YOUT
DGND
COUT
NR1
DVDH
RGBH
12
14
13
16
15
8
9
11
10
D+5V
NC
NC
EMPH
9
8
7
6
DGND 10
AGND
SLKCK(SCOR)
DGND
CLDCK(WFCK)
STB
SUBC(SBSO)
SBCK(EXCK)
5
4
6
7
1
3
2
384FS
DATA
BCK
LRCK
14
13
12
11 R553 10
+5V
76
+5V
4.7
R554
VCC
VDD
C503 22u35
R604
0.1
C539
4.7
+5V
A5
R552 100
R551 100
R550 100
+5V
EC958
AGND
AGND
D+5V
DGND
5
4
1
3
2
10
VCC C470
+
47u35
VCC
SW
VCC
C552 560P
C471 47u35
C537 22u35
AGND
14 15
VCC
NC
VOUTR
AGND
EXTR
C551 12
13
11
+
560P
C519 22u35 19
AGND
17
16
NC
EXTL 18
VOUTL +
VCC
C
+
A2
VCC
C535
22
VDD
VCC
VDD
VCC
0.1
C518
8
9
21
RSTB
ZERO
20
VCC
2.2K
R571
XTI
DGND
CLKO
XTO
R568 4
5
10
6
7
25
24
MUTE
0.01
23
CS
MODE
VCC
R570
R564
22K
VCC
Z2
Z1
1K
R565
LRCK
DIN
BCK
R567
1
2
3
100
R566 100
100
28
ML
MC 27
MD 26
C450
47u35
+
VCC
MD
MC
SR
R538 4.3K
19
EXTR
VCC
17
16
NC
15
VCC
VOUTL
NC
VOUTR
AGND VCC
C549 560P
C451 47u35
+
R563
19
20
VCC
AGND
EXTL 18
9
AGND
EXTR
VCC VCC
+
C514 22u35
2.2K
SL
VCCMODEXTI
C516
23
CS
21
RSTB
ZERO
22
6
7
8
DGND
XTO
VDD
VCC
R562
0.01
1K
ML
MC 27
MD 25
24
MUTE
26
2
4
5
3
LRCK
DIN
CLKO
BCK
47u35
281
+
IC3-5 VCC
C400
Q424,425
15
VCCAGND VCC
VOUTL
NC
EXTL
AGND
16
17
18
VOUTR
NC
VCC
C546 560P
+
C401 47u35
+
C506 22u35
12V
R606 7.5K
330
12V
R608
1K
R402
330 7.5K
R607
1K
+12V
R605 R403
245
218
R556
VCC
ZERO
20
AGND
VCC
VDD
9
VCC
4.7K C508
RSTB
CS
MODE
22
23
DGND
XTO
XTI
7
6VCC
VCC
R555
0.01
1K
11 12 13
9
10
12V
VSS
MUTE
MD
MC
ML
25
26
27
28
CLKO
BCK
DIN
LRCK
4
3
2
1
28 27
R537
4.3K
4 5 6 7 8
26
7
22
6
R536 4.7K
14 15 16 VDD GND
4.7K
R535
1 2 3
+5V
3
2
1K
R116
100
IC27,
29
29
IC27,
1.2K
750
R432,433,
506,507 D405, 407,601 E2
NO
R432,433,
506,507
750
D405,
407,601
440,441,502
Q436,438,
Q436,438,
440,441,502
YES YES
E2
E1 E2
AB FE2E1
D480
NO
YES
NO
D480
Please replace
(W02-26X-XX) with new
one, if it is malfunction.
the DVD circuit PCB
NOTE:
LOADING MOTOR C. B. A.
(VJB90340)
(VXQ0588)
IC30
OPTICAL PICKUP UNIT (VXQ0589)
DVD MECHA. (D40-1580-05)
MECHANISM UNIT
(VJB90357)
IC001 DVD CIRCUIT
MECHANISM IF
(VXA5790)
DISC MOTOR UNIT (VJB903)
MAIN C. B. A.
ELECTRIC UNIT
(X25-616X-XX)
IC5
IC4
IC3
IC31
2.0V
4.8V
0V
-0.7V
5.1V
2.5V
0V
5.0V
0V
1.4V
-8.6V
1.5V
2.5V
-7.0V
5.0V
1.5V
1.1V
1.5V
5.0V
2.5V
0V
2.5V
5.0V
4.6V
5.0V
-8.4V 5.0V 5.0V
1.5V
0.5V
1.5V
5.0V
4.8V
4.8V
2.5V
5.0V
5.0V
0.2V
0V
4.7V
5.0V
4.8V
5.0V
4.8V
5.0V
2.5V
-0.1V
-0.1V
11.3
5.0V
5.0V
5.0V
0V
0V
4.8V
5.0V
4.8V -11.2V
DV-K751(K)pcbsd2,2(98.12.1215:09 y[W 7

TKMOQSLNPR
MIX
(2/2)
IC15
E2
(2/2)
IC16
(1/2)
IC20
Q440
IC
RESET
D406 IC33
(2/4)
D404
(3/4)
MIC MUTE
CONT.
MUTE
Q436 D405
IC33
(1/4)
IC33
(4/4)
IC33
Q439
CONT.
MUTE
Q438
Q437
Q414
Q415
Q410
IC16
(1/2)
IC15
(1/2)
IC17
(2/2)
(1/2)
IC17
ECHO
MIX
SOUND SEL.
(2/2)
IC20
(1/2)
IC19
IC18
(2/2)
IC18
(1/2) 59KHz
LPF
(2/2)
IC19
BUFFER
IC21
(2/2) VOICEEDIT
D402
CN8
D
Q502
D424
D403
(1/2)
IC21 D601
IC8,9 CONT.
CN10
A
59KHz LPF
E.VOL(C,SW)
Q428
IC11
(2/2)
MUTE Q429 (1/2)
IC11
59KHz LPF
Q420
Q421
(2/2)
Q426
MUTE
Q427
IC13
IC13
(1/2)
Q418
IC12
IC12
(2/2)
(1/2)
Q411
(2/2)
IC14
D207-212
D204,206,405,406
D9,203,205,401,404,601
D100-103,200,402,403,407,480
D2,4,424
D1,3,201,202
2SA922(F,E):Q25
Q402-417,424-429
Q200,201,204,205,209,229
Q28,29
Q27,31,229-231,234,235,434,436-441,500,502
E1
TC74VHC08FT
TC74HC14AF
TC7SHU04FU
:IC29
:IC35 :IC34 :IC33
:IC28 :IC27,30,32 :IC26 :IC25
N345256SOA-55
ICP-N20
PST9128NR Q601
Q600
LC89170M
HD6433396A65F
E.VOL(SL,SR) Q419
2SC4177(L5,L6)
2SA1611(M5,M6)
2SC4213(B)
2SC2714(O,Y)
DTA114TUA
DTC124EUA
:
:
:
:
:
:
418-421
Q21,233
Q20,23,26
Q5,10,15,30,206,211,236,237,435
Q3,4,8,9,13,14,18,19,202,203,207,208,210,212,213,
Q2,7,12,22
Q1,6,11,24,232
TC9412AF
TC9214AF
:IC23 :IC22 :IC21 :IC11-20
:IC6,7
:IC10 :IC8,9,31
:IC3-5 :IC2
Q16
UPC7805AHF
NJU3715G
S-80740AL-A4
NJM4565M
NJM4580ED Q17
BA17805T or
PCM1716E
M51494L
TL431CLP:IC1 2SC1845(F,E)
2SC3311A(Q,R)
2SC2458(Y,GR) or
2SC4596(E,F)
2SB1375
2SK246(Y,GR)
2SA1576A(R,S)
2SC4081(R,S)
:
:
:
:
:
:
:
D10,11,600
D7
2SD2012:
IC14
(1/2)
MA111
U1BC44
DAP202U
:
:
:
DA204U
DAN202U
UDZ3.3B
UDZ5.6B
:
:
:
:UDZ6.2B:
GND LINE
SIGNAL LINE
B LINE
B LINE
Q500
D407
Q441
A1 : W02-1114-05
D480
+B
12V
R586
5.6K
R588
5.6K
R589
5.6K
R587
5.6K
C573
R418
100P 100K
+5V
R522 3K
4
L
R
CNT
R511 2.2K
R510 2.2K
R512 3K
C425 22P
5
6
C564
100P
R521
2.2K
IC15,16
330P
C498
R516
2.2K
C566
100P
R520
3K
C496
100P
7
4
R514
2.2K
6
5
VSS
47
R524
12V
C500
100P
7
12V
GND
1
2 7 8
4
6 5 3
R416 47
C417
100P
12V
2
34
100K
C574
R414
100P
C412
100P
12V
FR
175
+12V
C414
100P
C416
0.01
Z2
A2
Z1
+5V
+3.3V
+5V
W1
+3.3V
1
3 2
+3.3V
5
4
+5V
+5V
R590
4.7K
R591
100K
6
47
14
5
+5V
IC33
2
10K
R585
+5V
R583
10K
3
1
R584
220K
13
12
8
9
10
11
C488 R496
+5V
+3.3V
+B
12V +12V
220u10
+180
C489 R497
+B
12V
12V
Q437,438
+12V
100K
R494
1K
R498
220u10
+
100K
R495
1K
R499
180
C466
220u10
+
R464
180
R462
1K
R472
100K
R411 220
C502 100P
C501 0.01
R523 3K
R410 220
C406 3900P
C407 3900P
2
3
C563
100P
+12V
C565
100P
R519
2.2K
C495
100P
R515
3K
1
88
3
2
C424 22P
R513 3K
R508 3K
R509 3K
C497
330P
R404 15K
C402
100P
C560
100P
6
47
R540
12V
R406
220
100P
C404
7
4
5
100P
C562
0.039
C526
5
6
R408
220
C403
100P
+12V
C559
100P
3
+12V
C405
100P
8
100P
C561
0.039
C527
3
220
R407
IC17
R541
47
R405 15K
1
22
220
R409
C413
100P
C418
100P
8 7 6 5
4
3 2
1
10
+12V
12V
C499
100P
1
12V
11 12 13 15 16 14
VDD
R525
47 W16 +12V
W15
+12V
9
6
58
R420 47
+12V
MIX
Rch
7
12V
R417 47
C572
100P
R415
100K
2
12V
4
3
12V
+12V
12V
FL
1
12V
+12V
12V
C408
100P
R412
47
7
4
100P
GND 15
VDD 16
11 12 13 14
47
1
+12V
C411
0.01
C409
100P
8
C410
IC18
R413
12V
W17
R421 47
VSS
100P
C571
100K
R419
9 10
6
8
5
W4
+12V
C415
100P
C419
0.01
MIX
Lch
7
IC19,20
+12V
12V
3
2
12V
R530
56K
R527
C525 0.068
+12V
+
4.7u35
C542 R529
5.1K
R528
68K
390K
R526
22K 6
57
IC21
C543
39P
+12V
+12V
12V
MIC +12V -12V
321
1K
R199
31
30
49
+12V
44
/CK MICCNT1 MICCNT2 /DATA MICSW GND
7654
STB
8
12V12V
W5
R531
10K
12V
81
4
R533
10K
R532
2.2K
W8
40 48
W6
20
10K
R643
Q500,502
+5V
W7 10K
R641
+12V
+5V
12V
+12V
-12V NC D+5V NC
4321
+12V LOUT GND ROUT
8765
+12V
220u25 180R637NCNC
12V
+12V
12V
R489
5.1K
5.1K
R488
R456
5.1K
IC11,13
R478
3.6K240
SW
12V
R631
C530
1K
R633
6
3.9K 47
R482 3.9K
C472 220P
C570
2200P
100P
R480 5
C476 0.01
7
100P
4
C474
R484
R479
3.6K
C
+12V
1K
C531
R632
240
R630
47
3
100P
C569
2200P
+12V
C475
8C477 100P
1
100P
2
3.9K
R481
R483 3.9K
C473 220P
R485
+12V
R486
2.2K
178
+12V
CX DATA
C478
10u16
+
12V
12V
+12V
16
15
NC
CS1
9
10
NC
CS2
14
13
GND
11
12 STB
NC NC
12V
10u16
C480
+
10u16
+21
20
19
18
IN
4
5
LD2
GND
6
7
LD1
IN
LD1
LD2
GND
C479
12V
24
23
22
VSS
NC
OUT
1
2
3
VDD
NC
OUT
+12V
+12V
R638
100
10u16
C481
+
2.2K
R487
1K
C454
100P
C568
100P
C528
2200P
3.6K
R446
MC
MD
SR 240
R600
R450 3.9K
R534 100
R448
3.9K 6
547
7
4 R452
C452 220P
R447
3.6K
C529
R627
SL 240
R626
R628
1K
+12V
C567
100P
2200P
C456
C457 100P 12V
0.01
R449
3
2
3.9K 47
C455
100P
8
1R453
+12V
1411
10u16
+
R639 100
12V
C458 +12V
12V
DATA
STB 13
CX
GND
12
IC12,14
+
NC
CS2
NC
GND
15
16
17
18
NC
CS1
NC
GND
10
9
8
7
+
C459
10u16
12V
LD2
LD1
IN
OUT
19
20
21
22
LD2
LD1
IN
OUT
6
5
4
3
12V
+12V C460
10u16
R454
2.2K
100
R455
2.2K
100P
100P
C578
R492 47C482 100P
R490 18K
4
5
6
C484
7
100P
220u10
C467
R463
+180
R465
1K
R473
100K
C486
C487
0.01
2
8
3
100P
C579
1
C485
100P
100K
R434
FR
C426
+
R436
180220u10
1K
R580
100K
R422
R493 47C483 100P
R491 18K
12V
R460 47
R458 18K
C462 100P
+12V
R437C427
FL +
R435
100K
180220u10
MIX
Rch
C420
+
R424
180220u25
C533
100P
C576
100P
4
5
6
C464
100P
7
C532
0.01
C575
100P
8
C465
100P
Lch
MIX
100K
R423
+
1K
R579
1K
R576
1K
R575
5.1K
R457
STB
L
R451 3.9K
C453 220P
R636 100
R
CNT
VDD 23
24
VSS
2
1+12V +
C461
10u16
R461 47C463 100P
3
21
R459 18K
C421 R425
B
+B
5.6K
R642
IC34
IC8
IC9
IC7
IC6
-11.2V
-11.2V
11.3V
-11.2V
-11.1V
4.3V
5.1V3.2V
4.8V
4.8V 4.8V
4.8V
4.8V
0V 4.8V
4.8V
0V
4.8V
4.8V
4.8V4.8V -11.2V
-11.2V
-11.2V
4.7V
-11.2V
-11.2V
11.3V
-11.2V
11.3V
-11.2V
11.3V 11.3V
11.3
-11.2V
-11.2V
11.3
-11.2V
11.3V
-11.2V
11.3V 0.6V
11.3V
-0.2V
-0.1V -11.2V
-0.1V 11.3V
-0.7V
5.0V 4.8V 11.3V -0.2V
-0.2V 11.3V
-0.1V
-0.1V
-11.2V
11.3V
-11.2V
5.0V
-0.7V
4.8V -0.2V
11.3V
-0.2V
-0.7V
-11.2V
-11.2V
11.3V -11.2V
-11.2V
11.3V
-11.2V
-11.0V
-11.2V
-11.2V
-0.7V
-0.2V
DV-K751(K)pcbsd2,2(98.12.1215:09 y[W 10

UVXZABADWYAAAC
Lch
Rch
Lch
Lch
Rch
Cch
Rch
SWch
SYSTEM
CONTROL
Q416
Q417
Q412
2R
Q413
J4
1L
Q406 Q408
Q407 Q409
J5
Q402 Q404
Q403 Q405
MUTE
Q600
Q601
J3
J2
INVERTER
DIGITAL
A1
D600
WH1 J1
F
OUTPUT 1
AUDIO
H
D101
D102
CN5
6ch
SURR OUTPUT
C
FRONT
OUTPUT
MIX LINE CN3
MAIN
u-COM
D100
(PCM/BIT STREAM)
COAXIAL
DIGITAL OUTPUT
OPTICAL G
D11
B
IC
RESET
PAR.SER.
CN6
D103
A
INVERTER
CD TEXT
D207 D209D208
(AUDIO 2)
R500 R502
180180
R501 R503
180
1K
R504
180
1K
R505
R506
470P C490
R507
C491
470P
470P
180
R468R466
180
C468
1K
R474
R470 750
180180
W23
470P
C469
R469
180180
R467
1K
R475
R471 750
C428
R440R438
180 180
1K
R582
R442 W24
470P
470P C422
C429
R439 R441
180
1K
R581
180
R426
180
R443
470P
180
R432
R428
1K
R578
1K
R577
W20W19 R433
470P C423
Q402-417
R427
C600
0.1
R429
W27
10P
L195
C601
22
R603
R602
75
R601
180
1
3
2
5R648
220
4
2
IEC958
VCC
3
GND
C602 1
0.1
EC958
21
22
12 345
DGND D+5V AGND AGND
220P C603 220P
C604
L196
SDATA
L197 SBUSY
10STATUS
M CLOSE SW/REMOTE 0
OE1710
+5V
STANBYLED/VSSLED
STB
+5V
+3.3V
+B +12V 12V
35V
35V
+B
R132 100
IFD(DATA) 241
DGND
IFL(CS)
IFS(CLK)
DGND
R131 100
R130 100
23
25
5
4
3
2
NC
DTS/MPEG
NC
NC
9
8
7
6
35V
+5V 35V
+3.3V
+12V 12V
20
22
21 21
30 26
23 23
25 25
24
28
31
R157 47K
+5V
+B
100K
R193R196
100K
R195
R155 47K
R191 100K
330
R192
R194 100K
330
+5V
18
BITO/SBUSY
22 SDATA
21
REM
CD/2ch
DQSY
18
19
20
R134 100
R133 100
R161 47K R162 47K R159 47K R164 47K R165 47K
+5V
R163 47K
36
R171
R170 56K
34
33 32
R166 47K
R174 47K
M OPEN SW/REMOTE 1 MDRVEO/IFS MDRVE1/IFD IFL/MUTE FSL/MIC-MUTE BITL/ECHO-MUTE
23
24
25 26 28
29
30
POWER AVCC
27
MIX
35 32 33
34
KEY0 KEY1 KEY2
31
37 38
39
40
NC GND 96LED
36 SET
NC
+5V
+3.3V
+5V
12V
+12V
40
12V
+5V
+5V
+12V 12V
43
42
BB-A1
41
PCMLED/DVDLED 41
43
44
42
+5V
INTERFACE
SHUTSW1/PLLED/BB-IW1
VOICEEDET/BB-SF1
47K
R198
+5V
7818DDATA
CMD
NC
DSPCLK
R127 470
R126 470
R128 470 9
1113
12
11
DTS/MPEG
DLATH
96LED 39
77
21
20
19
SHUTL1/FLLED
REM
DCLK
DVDLED/PCMLED
45
18
41
80
17
16
15
14
KEY2
REG
KEY1
NC
36
33
3413
12
11
10
KEY0
SHUTL0
RESET
STBYLED/VSSLED 42
46
329
8
7
6
D+5V
DGND
NC
FL-35V 35V
+5V5
4
3
2
NC 1
CLRP13
10
35V
14
13
12
STB
CLK
DATA
9
11
P14
P15
P16
14
13
26
R539
100
44
43
50
48
+5V
194
18
17
16
15
P4
P2
P1
P3
5
6
7
8
P10
P11
VSS
P12 49
51
22
21
20
VDD
P5
P6
1
2
3
P7
P8
P9
+5V
EXTAL
100
R141
R153 47K
R152 47K
15
16
11
10
9
13 NC
NC
CS
WE
14
15
16
17
DSPCLK
STATUS
CMD
GND
9
10
11
12
+5V
+5V
R150 47K
R149 47K
R147 47K
R148 47K
+B
+
X1 16MHz
470u10
C111
MD0
NMI
STBY
VCC
6
7
8
MD1
4
5
1
C100
+5V
22K
R146
RES
XTAL
1
2
3
R151
1M
W33
+5V
+5V
R144 47K
R145 47K
R113
R142 47K
80
64 74 69 78 77 76 75
SRDT
DDATA
DLATH
EMPH
PMUTE
80 79
DCLK
73 72 71 70
GND
D2
D1
D0
BANKA(A0)
A11
67 66 65 63
D5
D6 D7
A10
68
D3
D4
A8
62
A9 61
R111
R112
220 220
220
79
78 77 75 76 80
74
72
71
70
22K
R189
63 67 66 65
64
69
68
61
62
7STB
20CB/B
DGND
Y/G
21
22
YOUT
DGND
CR/R
DGND
16
17
18
19
NR3
NR1
COUT
DGND
12
13
14
15
DGND
YCH
RGBH
DVDH
8
9
10
11
20
+5V
OUT
1
16
18
GND VCC
3 2
14
13
12
R137 1K
R138 1K
R139 1K
R140 1K
SL16
XS8
3SUBC(SBSO)
SLKCK(SCOR)
CLDCK(WFCK)
DGND
4
5
6
AGND
SBCK(EXCK)
1
2
11
3
1
12
R609
2
L198
GND
7
R190 47K
3
4
6
4
1000P
C116
5
6
39K 2
3
10
9
81
12
11
12
11
2
7
4
19
GND
TIMING
SIGNAL
CIRCUIT
SYNCHRONIZATION
PROTECTION
5
+5V
1M
R610
6
6
6
3
2
4
5
3
4
32WORD x 8BIT
DUAL PORT RAM
&CPU
CRC
CHECKER
VCC
1
1IC27,28
14
13 +5V
47K
R611
1
+5V
53
46
45
STB/BB-A0 44
45
44
R180 47K
47
46
VCC
SHUTSW0/BB-IW0
48
48
+5V
+12V
51
50
49
50
49
48
BB-SF0
MICSW/BB-MUT R187 47K
R188 47K 49
52
51
A1
CE
BB-DEM
53
R185 47K
R186 47K
12V
+5V
57
56
55
54
A4
GND
A3
A2
57
55
54
60
59
58
A7
A6
A5
60
59
58
8
TEST
0.01
C112
+5V +5V
+5V
10
9
100
R100
11
12
13
+5V
79
80
19
+5V
14
VDD
+5V
750750
W21
W22
56K
39
IC32
IC23
IC25
IC22
IC27
IC28
IC26
-11.2V
-11.2V
-11.2V
-11.2V
-11.2V
-11.2V
-11.0V
-11.1V
2.3V
2.2V
2.3V
4.8V
4.8V
0V
0V
0V
0V
4.8V
0V
4.8V
4.8V
4.8V
4.0V
4.8V
4.0V
0V
0V
0V
0V
4.8V
0V
4.8V
4.8V
0V
4.8V
0V
4.8V
4.6V
4.8V
4.8V
4.8V
4.8V
0V
0V
4.6V
0V
-4.0V
4.8V
4.8V
4.8V
4.1V
4.3V
3.4V
4.1V
4.8V
4.8V
4.1V
0V
2.0V
4.5V
4.8V
0.5V
0V
0.2V
0V
4.8V
0V
0V
0V
0V
0V
0V
0V
0V
0V
1.3V
0V
1.7V
1.9V
4.8V
4.8V
4.8V
0V
4.6V
0V
4.8V
4.8V
4.8V
0V
2.4V
4.8V
0V
1.2V
4.7V
4.8V 1.2V
0V
0V
0V
0V
4.8V
0V
0V
3.7V
0V
4.8V
0V
4.8V
0V
0V
0V
0V
4.8V
1.8V
1.3V
2.0V
2.0V
2.9V
3.2V
4.8V
0V
0V
4.8V
4.5V
4.8V
DV-K751(K)pcbsd2,2(98.12.1215:10 y[W 11

ANAE AG AI AK AMAF AH AJ AL
Y22-7860-10 DV-K751/S701
D10
WH2
D9
Q29
POWER
ON/OFF
5.0V
AVR
5.0V AVR
Q9
Q8
Q10
Q7
Q6
Q24
-11V AVR
REF.
VOLTAGE Q25
D3D4
Q26
Q28
ON/OFF
POWER
Q2
Q3
Q4
Q5
3.3V AVR
Q1
Q22 Q23
D1 D2
Q27 Q31
D7
Q21
Q14
11V AVR
D200
Q232
SRAM
D201
D202
D210 D212D211
Q233
9V AVR
Q18
Q19
Q20
Q17
Q16 Q11
Q13
Q15 Q30
Q12 POWER
ON/OFF
5.0V AVR
VIDEO ADJUST. CONT.
Q229 Q231Q230
5.6V AVR(VIDEO)
D205
D206 D204
Q237
D203
ADJUST.
VIDEO
CONT.
Q234 Q235 Q206Q204 Q205
FILTER
Q209
Y-NOISE
CANCELER
Q200
Q236 Q203
Q210 Q213
Q211
Y-AMP
Q212
Q208
FILTER Q202
Q201
C-AMP VIDEO
AMP Q207
WH3
CN201
2/2
W02-
PROTECT
IC
2/2
-WH102
X14-G/7
J9
Y
S-VIDEO 1
C
2VIDEO2
OUTPUT
VIDEO
2/2
-CN1
X14-A/7
1
J6
VIDEO1
2/2
X14-B/7
2/2
-CN2
X14-B/7
-CN3
2.2K
R49
R50
16
47K
R615
+5V
2.2uH
L199
D3.3GND
D+3.3V
D+5V
D5GND
A+5V
75634
MGND
21
M+9V
A5GND
8
+9V
0.01
C46
100u10
C45
+
L211
10uH
47u25
C43
0.22
C44
+5V
+5V
35V
+5V
+3.3V
R43
1
IN
GND
OUT 1
R48
+
Q29
12V
+5V
+5V
+3.3V
12V 12V
+3.3V
+3.3V
15
GND D4
D3
14 69
68
47K
R617
+12V
+9V
2.2K
100u10
+5V
R41
1.5K
12V
820
C13
+
R40
35V
C10
0.01
+5V
560
R37
1000P
C12
10u16
1.62K
R42 C14
+
C15
220u10
+
1W
1
R38
+5V
R35
R39
4.7K
+5V
+5V
12V
Q24
12V
12V
35V
47K
R23
B
B
R46
2.2
B
+5V W31
330
R21
100
R22
+
100u25
C41
1.5K
R26
+
R20
2.2K
47u25
C40
C39
0.01
Q27,28,31
100u10
+3.3V
R28
560
1000P
4.7K
R33 C5
820
47u10
+
R32
+
C6
10u16
R34
1.5K
+
C7
220u10
C4
2.2K
R31
0.01
C2
C47
4.7K
R27
+
0.22
R30
2W
5.6K
R16
390
R14
100u10
C29
+12V
+3.3V
2.2K
R13
47u25
C35
+
1.5K
1.8K
R24
+3.3V
+
100u25
C36
+
R25
2.2K
R18
100
R19
+3.3V
330
R17
820
R6
1.5K
R7
100u10
C21
R5
2.2K
+
0.01
C34
+12V
Q21
10K
R45
2.2
4.7K
R44
0.01
C219
47u25
C220
100K
R229
230
5.6V
R623 47K
R614 47K
R616 47K
70
72
71
54
74
53
60
57
55
58
59
R612 47K
R613 47K
0.01
C107
D0 R620 47K
18
17
D1
D2
D6
D4
12
13 R618 47K
R619 47K
67
66
21
20
19
A2
A1
A0
A10
CS
D7
8
9
10
11
R621 47K
R625 47K 64
15
65
+9V
A7 25
24
23
22
A6
A5
A4
A3
A8
A9
A11
OE
4
5
6
7R624 47K
17
62
63
61
28
27
26
1NC
NC
VCC
WE
NC
2
3R622 47K
16
+5V
C256
+5V
12V
47u25
C250
+
C252
100u25
+
1K
R288
100P
C251
R307
1
2.2K
R289
47u25
C253
100u25
C255
+12V
+12V
++
0.01
1K
R290
0.01
2.2K
R291
C257
100P
C254
R308
15.6V
+5.6V
+12V
5.6V
1000P
220u16
C31
+
10u16
C30
+
15K
R15
R12
0.22
1W
+5V
+9V
C28
C23
0.01
C26
390
R9
560
R11 +9V
+
10u16
1.5K
R8
+
220u10
C22
1000P
C20
+5V
+9V
560
1 1W
R4
R3
C18
0.01
4.7K
R1
+9V
+B
Q229-231
229
231
230
R286 56K
3.3K
R282
R281 4.7K
220K
R284
R283 27K
68K
R285 R287
220K
5.6V 5.6V
R224
14
229
4.7K
R294
4.7K
R295
231
16
+12V
R298
2.7K
100
R299
+12V
5.6V
+5.6V
8.2K
R312
+5V
4.7K
R292
13
4.7K
R293
+5V
12
+5.6V
R297
100
10K
R311
0.1
C258
HFREG.
C212
+5.6V
C213
18P
C210
C211
22P
7P
C209
R226
3.9K
470P
C214
6.8uH
5P
22uH
L202 L203
560 R227
470
47P
47u25
C216
+
4.7K
R228
5
4
3
C217 0.1
C218 150P
1
2
0.01
C215 AMP
CORING
AMP
10P
C200
68P
C202
C201
47P
+5.6V
5.6V
+12V
4.7K
330
R203 R205 R202
3.9K
390
R207
R233
2.2K
+B
9
8
10
+B
+B
7 6
+
10u16
C221
+
AMP
Y
AMP
HFREG.
+5.6V
L204
10uH
+
4.7K
10K
R231
R230
R236
100
R234
1K
R232C222
10u16 100
3.9K
R211
100
R235
4.7K
100
4.7K
R210
R214
390
R208
R215
5.6V
+5.6V
10K
1K
R220
R216
100
R221
+5.6V
6.8uH
L200
R200
560
2.7K
R296
15uH
5P
C203
L201
+5.6V
1.2K
R204
5.6K
R201
100
+5.6V
R206
+5.6V
R209
3.9K0.1
C205
R213
560
4.12K
R212
+5.6V
R217
100
2.2K
R218
+
10u16
C206
R219
100
E1
R47
2.2
35V +5V
E2
7 D+5V
+3.3V
12V
+9V
35V
+5V
12 POWER
8
9
10
11
D+5V
DGND
M+9V
FL-35V
+3.3V
12V
+12V
1
2
+5V
+B
+5V
3
4
5
6
A-12V
D+3.3V
D+3.3V
A+12V
1
2
AGND
A+5V
+9V
+B
47P
C226 C225
47P R237
68
R239
68
R223
47P
C207
C223
68
0.01
10
R225
47P
C208
R222
68
IC10 IC1
IC29
IC2
DV-S701/DV-K751 (1/2)
E
IC35
D
B
C
A
7.8V
0V5.0V
5.0V
5.0V
5.4V
2.4V2.4V
1.8V
6.1V
6.7V
5.1V
8.2V 8.7V 9.3V
14.4V
8.0V
-11.2V
-14.7V-14.1V
-11.8V
-11.8V 5.0V
14.4V
2.4V2.4V
1.8V
4.8V 4.1V
8.7V
7.7V 9.3V
3.4V
3.2V
2.4V
5.0V
11.8V 11.8V
0V
11.2V
13.9V
2.4V 2.4V
14.5V
13.9V
11.3V
2.0V
2.9V
3.2V
2.0V
3.7V
0V 0V
0V
1.9V
4.8V
1.8V
1.3V
1.7V
4.8V
0V
5.4V
4.8V
-5.7V
-8.9V 5.0V
10.2V
1.7V 8.9V
2.4V
10.3V
10.3V
12.3V
9.6V
9.0V
14.4V
8.3V
5.9V
1.8V
4.9V
5.2V
8.1V
14.6V
14.4V
8.1V
14.4V
0V
0V
3.8V 3.8V
4.0V 0V
-3.8V
-5.1V
8.9V 4.8V
-5.1V
1.1V
0V
5.0V 0V
4.3V
-3.2V
1.1V
1.7V
1.7V
4.8V
4.2V
8.9V
4.7V
5.4V
4.8V
0V
-0.6V 0V 0V
0.3V
8.5V
5.0V
0.5V
0V
0V
-3.2V
0.6V
4.8V
0V0V
0.6V
-3.8V
-0.6V 0V 0.9V
4.8V 4.8V
4.8V
-0.6V 0.4V
0V
0.9V 0V
4.8V
0.6V
4.8V
2SC27852SA992
2SC1845 DTC114ES 2SA933S
2SC1740S
2SC2458
2SC2714
2SC4081 2SC3311A 2SB1375 2SD2012
DTA114TUA TC9210P NJM4565M
NJM4580ED
BA17805T
UPC7805AHF DAP202U DA204U 2SK246 TC9214AFDAN202U
LC89170M NJU3715G TC9412AFTC74HCT7007AF
TC74HC14AF
TC74VHCU04F
TL431CLP HD6433396A65F PST9128NRS-80740AL-A4
TC7SHU04FU ICP-N20 LC75712E
PCM1716E
CAUTION: For continued safety, replace safety critical components only
with manufacturer's recommended parts (refer to parts list). indicates
safety critical components. For continued protection against risk of fire,
replace only with same type and rating fuse(s). To reduce the risk of elec-
tric shock, leakage-current or resistance measurements shall be carried
out (exposed parts are acceptably insulated from the supply circuit) before
the appliance is returned to the customer.
The DC voltage is an actual reading measured with a high impedance
type voltmeter with a cassette loaded at playback mode. The measure-
ment value may vary depending on the measuring instruments used or on
the product. Bias circuit DC voltage is measured while in the record mode.
DV-K751(K)pcbsd2,2(98.12.1215:10 y[W 12

AO AP AR AT AV AXAQ AS AU AW
2
1
3
5
7
4
6
P31 P32 P33 P34 P35
P26 P27 P28
P22P21 P23
P29 P30
P24 P25
P17 P18P16 P20P19
P12P11 P13
P7P6 P8
P14 P15
P9 P10
P2P1 P3 P4 P5
P5
P1
P2
P3
P4
P9P7
P6 P8 P10 P30
P17
P16
P13P11
P12
P14
P15
P19
P20
P18 P21
P23
P22 P27
P24 P25
P28 P29
P26
-32.0V
-20.2V
-33.8V
-20.0V
-33.8V
0V
-19.7V
-26.8V
-24.5V
-26.9V
0V
0V
-24.5V
-24.5V
-26.9V
0V
-26.6V
-33.8V
-27.3V
0V
-24.5V
-29.3V
-17.4V
-20.0V
-29.3V
-26.7V
-22.2V
-33.8V
-29.3V
-26.8V
-26.8V
-24.6V
-20.0V
-22.1V
-26.8V
-29.3V
-32.0V
-32.0V
-32.0V
-32.0V
-32.0V
-32.0V
-32.0V
-32.1V
-32.0V
-32.0V
-32.0V
-32.0V
-32.0V
-32.0V
-32.0V
0V
0.2V
0.5V
4.6V
4.9V
2.4V
2.4V
4.9V
R27 220
GND 4
FF
FF
FL-35V 2
NC 1
NC 3
35V
STBYLED
D+5V
6
5
SHUTL0
RESET
8
7
NC
KEY0
10
9
REG
KEY1
12
11
SHUTL1
NC 13
14
DCLK
LED-DVD
16
15
DDATA
REM
18
17
DLATH
NC
20
19
R25 220
R26 220
21
4
35V
3 2
1
C4 100P C3 100P C5 100P
C7
0.01
35V
1
AM3 AM2 AM1
3 2
DI
64 CL
CE
63
62 RES
61
16 15
14
13 12
11
10
15
9
8 7
6
5
4
14
12 13 10
11
16
AM15 AM6 AM5 AM4
6 5
AM9 AM8 AM7
9
8 7
AM14 AM13 AM12 AM11 AM10
17
AM16
AM17 17
19
AM18
AM19 18
AM20
AM21 20
18
19
20
21
45
53
R28
1K C6
1u50
10K
+
C8
100P
R59
VDD
OSCI
60
59 OSCO
VSS
58
57
35V 55
TEST
VFL
56
G1
G2
54
49
51
G3
G4
52
G5
G6
50
G9
G8 G7 48
46 47
25
23
AM22
AM23 22
AM24
AM25 24
22
23
25
24
AM26
AM27 26
AM28
AM29
27
28
26
27
29
28
AM34
G12
G11
G10
G15
G14
G13
43 44 40 41 42
AA2 AA3
G16
AM35
AA1
37 38 39 34 35 36
AM31
AM30 29
30
AM32 31
32
31
30
32
AM33 33
R12
5.6K
1-6
1-7
NC 21
2-7 3-7
2-6 3-6
5-74-7
4-6 5-6
1-5 2-5 3-5 4-5 5-5
2-41-4 3-4
2-31-3 3-3
4-4 5-4
4-3 5-3
NP
2-2 3-21-2 5-24-2
2-11-1 3-1 4-1 5-1
3
1
2 5
4F1
F1 NP NP
R6
11K
53
54
51
50 52 47
49
48 45 46
44
R10
3K
41
43 42
39
40
11
8 7 6
9
10
2G 1G 5G 4G 3G
14
12 13 16 15
8G 6G 7G 11G 10G 9G NC
19
17 18 22
21
20 14G
12G 13G 15G 16G
25
24
23 27 28 26 NC
NC NC NC NC
C9
0.1
C11
100P
C12
100P
C17
100P
100P
C18
100P
C19
C20
100P
100P
C13
100P
C14
100P
C16
C15
100P
100P
100P
C21
100P
C22
C24
C23
100P
C25
100P
34
35 33
51
54
26
R14
11K
35 33 32
34
29
30
31
27 28
51
52 53 50
49
330P
C26
48 46 47
23
24
25
21
22 20
18
19
17 16 15
P26
34
31
30
29
33 32
NC P35 NC P33 P32 P34
36 35
39
38 37
P30 P29 P31 P27 P28
41
42 40 45
44
43 P23
P24 P25 P21 P22
48 47 46 50
49
P19 P18 P20 P15 P16 P17
3
44
45 43 42
41
40
39 14
13 12 10
9
11
6
8 7 5
4
2
1
P3
53 52 55 56
54 P12
P13 P14 P10 P9 P11
58
59
57
61
62 60 P6
P7 P8 P4 P5
64
65 63 66
P1 P2 NP NP
67 68
69 NP
F2 F2
0.01
C27
11K
R5 5.6K R11 11K R13 33K R15
2.7K
R8 R16
33K
2
1
3K
R9
2.7K
R7
R65 47K
R66 47K
R62 47K 47K
1000P
C59
R56
R55
4.7K
R1
3.3K
R2
3.3K
R4 4.7K
R3
R57 47K
R17
47K
5 4 3 2 1 3 1 2 2 1 3
R18
47K
E9
1
2
3
4
5
3
2
1
3
2
1
VDD
REM
GND
330
R24
10
R29
1u50
C1
+
0.01
C125
P102
150
R23
150P
C84
150P
C83
P3
56K
R67
3
2
1
+5V +5V
+5V +5V +5V +5V
+5V
WH4
DOT DRIVER
S10S8
CN1
(1G-15G)
D5
1G 2G
S9
3G 4G 5G 6G
S12S11
D4 D6
11G7G 8G 9G 10G 13G12G 14G 15G
16G
S4 S5 S6
S7
S3
IC1 : LC75712E
: 2SC1740S(Q,R) or
2SC2785(F,E)
D1 : UDZ5.6B
D2 : B30-2526-05
D3 : B30-2513-05
A1
ED1
W02-2571-05
16-ST-20GK
:
:
Q1,2
TEXT
DISPLAYINFO.
ALL
SEARCH
TITLEREPEAT
DISPLAY
FL S2
E3E1 E5
IJ K
Q1 Q2
E4
E6
E2
K
J
I
SHUTTLE
A1
D3
S1
I/
WH103
STANDBY
REMOTE SENSOR
D2
DVD
DA204UD4-6 :
WH5
WH3
S13
WH2
WH1
D1
CN10
X25-
1/2
C25-
1/2
CN9
X25-
1/2
CN8
X25-
1/2
WH3
1/2
CN3
X25-
IC1
ED1
DISPLAY UNIT (X14-484X-XX) (A/7) DV-S701/K751
(X14- ) (E/7)
(X14- ) (D/7)
(X14- ) (C/7)
A
B
D
E
C
DOLBY DIGITAL
TITLE
DVD VCD
CHAPTER TRACK
P.B.C.
CD R
RANDOM
REPEAT
CD TEXT TOTAL A
MPEG ANGLE PCM
INDEX
BALL
PROG. KARAOKE STEREO
L
DV-K751(K)pcbsd2,2(98.12.1215:09 y[W 9

BHAY BA BC BE BGAZ BB BD BF
-1.0V 2.2V
-0.6V
2.0V
-11.3V -11.3V
2.6V
4.7V
1.6V
2.6V
5.0V
5.0V
1.5V
1.7V
1.3V
2.6V
5.0V
2.6V
1.3V
1.7V 4.9V
0V
2.5V
-1.0V
0V
1.6V
1.2V
1.6V
2.6V
1.6V
5.0V
5.0V
4.7V
2.5V
5.0V
2.6V
4.9V
5.0V
5.0V
5.0V
5.0V
0V
2.4V
0V
11.3V 11.3V
-0.6V
11.3V 0V
0V 3.9V
-11.2V
11.3V
44
43 42
41
40
39
38 37 36 35
34
12 13 14 15 16 17 18 19 20 21 22
MMOD1 MMOD0 VSS MCK1 MCK0 VDD VSS XO CK VDD ICTH
VSS
NC NC NC NC
VDD
DRON0
DRON1
NT
RND0
RND1
1
2
3
4
5
6
7
8
9
10
11
12
13
14MCK
DATA
BCK
LRCK
D-GND
D5V
NC
NC
EMPH
NC
NC
NC
MUTE
RESET
8
7
6
5
4
3
2
1
+12V
Lch
AGND
Rch
-12V
NC
NC
NC
28
27
26
25
24
23
22
21
20
19
18
17
16
15
ML
MC
MD
MUTE
MODE
CS
RSTB
ZERO
VCC
AGND
EXTL
NC
VOUTL
VCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LRCK
DIN
BCK
CLKO
XT1
XT0
DGND
VDD
VCC
AGND
EXTR
NC
VOUTR
AGND
1213
R60 1M
100P
C29 98
C64 10P
R33 1M
100
R32
1011
C63 10P
R30 1M
100P
C28
2
38
1
6
57
4
100K
R39
560P
C61
100P
C41
560P
C62 C40
100P
R38
100K
16K
R43
100P
C39
100P
C38
R42
16K
100P
C57C58
100P
220
R45
220
R44
3
4
8
6
57
21
C52
100P
220
R46
220
R47
0.039
C42 C43
0.039
100P
C56 100P
C55 3900P
C45
220
R49
220
R48 C44
3900P
47
R51
47
R50
100P
C46
100P
C47
12
11
10
9
8
7
6
5
4
3
2
1
FL-35V
M+9V
D GND
D+5V
D+5V
D+3.3V
D+3.3V
A+12V
A-12V
A+5V
A GND
1
2
FLAC
FLAC
1
2
R611
15
1K 1/4W
R356 10K
R352
1.2K
R353
R355 100
R711
10K 1/4W
47u50
C711
+
R357 1K 1/4W
2.7
R351
100u35
C351
+
0.01
C353
T351
C612 0.01 C611 0.01
330u35
C214
+
330u35
C223
+
330u35
C224
+
330u35
C213
+
4.7K
R212
560
R211
330u35
C811
+
P211
750mA
39uH
L811
100u35
C812
+
180u35
C211
+
560
R221
4.7K
R222
180u35
C221
+
60V
60V
750mA
P221
L311
39uH
39uH
L411
22uH
L511
330u35
C312
+
330u35
C311
+
C512
C511
330u35
+
560u35
+
C412
C411
100u35
+
330u35
+
+5V
12V
+12V
+5V
+3.3V
+9V
+5V
+5V
+12V
+12V +3.3V +5V +9V
12V
+12V
+5V
+B
+B
+B
+B
+B
B
+9V
+3.3V
+9V
+3.3V
1u400
C114
+
L104
0.01
C118
0.01
C116
470
R113
4.7K
R111
1.5K
R112
270
R116
C115
0.047
L103
R110
15K
2200P
C117
100K
R108
47K
R115
0.01
C112
C113
68P
150u400
C111
+
820K
R104
1W
1/2W
R109
100K
1/2W
1/2W
R105
820K
1/2W
R114
1.5K
1u50
C201
+
1.5K
R206 82
R205
1K
R202
3.3K
R204
100
R201
820K 1/2W
R101
C101
F101
T2AH 250V
1000P
C103
C102
0.1
C104
1000P
C107
1000P 1000P
C108
18mH
L101
(K)
(M)
(T,E)
: AC120V 60Hz
: AC110-120V/220-240V~
50/60Hz
: AC230V~ 50Hz
0.1
T101
: AC220V~ 50Hz
(C)
+5V
+12V
IW1
IW0
IUD
IIS
IBF
VSS
RST
LRCK1
DATA1
BCK1
MUTE
OBF
OIS
OLRRL
OUD
FILN
VSS
LRCK0
DATA0
BCK0
DRVW
THRMN
11
10
9
8
7
6
5
4
3
2
1
23
24
25
26
27
28
29
30
31
32
33
100
R52
100
100P
R34 220
R35 220
R36 220C65 22P
C67 22P
C66 22P
R69
1
C30
0.01
330u16
C33
+
C32 22u35
+
100
R63
100P
C77
34
56
14
7
C70
0.01
1
R68
R70
1
27
25
22
R74
1K
1000P
C75
1000P
C74
1000P
C68
12
27
25
22
8.2K
R40
R41
8.2K
47u35
C36
+
47u35
C37
+
0.01
C51
C53
C54
0.01
100P
1
R72
1
R71
1K
R73
C79
0.01
E10
P1
1
2
3
4
5
6
7
SW
MIC1
+12V
GND
-12V
MIC2
SW2
1
2
3
4
5
6
7
8
A-12V
A+12V
MIC MIX
GND
MIC SW
DATA
CK
STB
10u16
C117
+
4.7K
R120
R121
100K
100P
C121
100P
C119
100P
C120
R129 100
R128 100
R127 100
7
86
5
4
12
3
C106 120P
R110 27K
560
R108
R109 27K
C105 120P
1K
R112
R111
1K
560
R107
1000P
C107
0.01
C108
P2
100u10
C48
+
C80
0.01
C35
+
22u35
R122
47K
POWER
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W 1/4W
+5V
+5V
+5V
+5V +5V
+5V
+B
12V
+12V
+5V +B
+5V
+5V +B
+B
+B
+B
+B +B
+B
+B
+B+B
+B
+12V
+B
+B
+B
+12V
12V
C76
C78
100P
R54
R53
100
56
34
12
9810 11 12 13
7
14
IC7
(BOTTOM VIEW)
CN2
CN3
(6/6) (4/6)
IC6
IC6
(5/6)
(1/2)
IC5
IC5
(2/2)
IC4
(1/2)
(2/2)
IC4
CN201
CN202
CN101
D611
D353
D711
D712
Q353 Q352
Q351
D211
D231
D221
D232
D811
Q211
Q212
Q221
Q222
12V AVR
-12V AVR
D311
D411
D511
D104
D103
D110
D108
Q101
Q102
Q103
D105
IC201
PC101
D101
SW101
POWER ON/OFF
D321
Q211 : 2SB1566
Q212 : 2SC1740S
Q221,351 : 2SD2395
Q222,353 : 2SA933S
Q352 : DTC114ES
D101 : S1WBA60
D103 : RD18FB2
D104 : MTZJ2.0B
D105,611 : 1SS270A
D108,110 : D1N60
D211,221 : 11EQS10
D232 : MTZJ30C
D311 : S2L20U
D321 : MTZJ15B
D353 : MTZJ39B
D411,811 : 21DQ06
D511 : D3S4M
D712 : MTZJ12A
PC101 TLP721F:
DSP
D.R.I.V.E. ADD 59kHz LPF
INVERTER BUFFER
D231 : MTZJ5.6C
D711
D611 :
:1SS270A 10ELS2
IC6
IC6
(2/6)
IC6
(3/6)
(1/6)
IC6
DAC
IC6
IC4,5
IC2
IC7
IC3 KAN06:
TC74HCT7007AF
TC74VHCU04F
:
:NJM4580ED
PCM1716E
:
:
E101
WH102
Q101
Q105
MIX
MIC
DETECT
IC101
(1/2)
IC101
(2/2)
MIC AMP
B
A
BUFFER
NON INVERT
(3.3V 5V)
D
A
E
B
IC201 : AN1431T
(3/6)
IC7
(2/6)
IC7
IC7
(1/6)
(4/6)
IC7 (5/6) IC7 (6/6) IC7
IC2
IC3
PROCESSOR UNIT (X14- ) (B/7)
DON'T REPAIR
SWITCHING POWER SUPPLY (W02-2658- 5)
(X14- ) (G/7)
(X14- ) (F/7)
DV-K751(K)pcbsd2,2(98.12.1215:09 y[W 8