Kenwood KRF-X9995D User manual

AUDIO VIDEO SURROUND RECEIVER
© 2001-4/B51-5712-00 (K/K) 3424
PHONES
THX DOLBY DIGITAL
DTS MPEG
D.R.I.V.E. HDCD
¤ INPUT SELECTOR ‹
VOLUME CONTROL
DOWN UP
AV - AUX
S VIDEO VIDEO L - AUDIO - R
CLIP
INDICATOR
ON / STANDBY
REMOTE POWER
CD 2 / TAPE 2
MONITOR
SURROUND
BACK 96kfs
STANDBY
DISCRETE 6.1 MATRIX 6.1 NEO : 6 PRO LOGIC
DTS-ES
*Refer to parts list on page 62.
KRF-X9995D/X9995D-S
SERVICE MANUAL
OPTICAL
VIDEO
4
VIDEO
3
VIDEO
2
CD-R
MD/
TAPE1
CD1
DVD
EXT.CONTROL
RS-232C
DIGITAL IN
COAXIAL
DIGITAL OUT
VIDEO
3 IN
COMPONENT VIDEO
DVD
IN
MONITOR
OUT
MONITOR
OUT
PLAY
IN
PLAY
IN
PLAY
IN
PLAY
IN
REC
OUT
REC
OUT
PLAY
IN
S VIDEO VIDEO
PRE OUTZONE B PRE OUT
R L AUDIO
R L FRONT R L SURROUND R LR L SURROUND BACK SUB WOOFER CENTER VIDEO
R L
BA
AUDIO
VIDEO1
VIDEO2
VIDEO3
VIDEO4
DVD FRONT
DVD/
6CH.
INPUT
SURROUND
CENTER SUBWOOFER
PHONO
CD1
REC
OUT
PLAY
IN
MD/
TAPE1
REC
OUT
PLAY
IN
CD-R
REC
OUT
PLAY
IN
CD2/
TAPE2
MONITOR
CENTER
SPEAKER
(6–16Ω)
SURROUND
SPEAKERS
(6–16Ω)
FRONT SPEAKERS
(6–16Ω)
ANTENNA
GND AM
FM 75Ω
SYSTEM
CONTROL
SL16 TEXT
REMOTE
IR OUT
LCD
IR OUT LCD
REMOTE
IR RECEIVER
IN
IR RECEIVER
IN
IR REPEATER OUT/
DVD CONTROL
RF REMOTE
ANTENNA
C
R
L
R
L
A B
DC12V 20mA
DC12V
20mA
PR/CR
PB/CB
Y
PR/CR
PB/CB
Y
PR/CR
PB/CB
Y
AC 120V 60Hz
SWITCHED TOTAL
90W 0.75A MAX.
Front glass *
(B10-) Knob * (K29-)
Panel *
(A60-)
Phone jack
(E11-0190-05)
Knob *
(K29-) Indicator (B12-0392-14) Knob * (K29-) Cylindrical receptacle (E56-0026-05) Pin jack (E63-1121-05)
Pin jack
(E63-1128-05)
Pin jack
(E63-1179-05)
Miniature phone jack
(E11-0905-05)
VR-5700/5900
Oscillating module
(W02-2717-05)
Pin jack
(E63-1177-05)
Indicator
(B12-0391-14)
Panel *
(A29-)
Pin jack
(E63-1125-05)x2
Pin jack
(E63-1176-05)
Miniature phone jack
(E11-0291-05)
Miniature phone jack
(E11-0905-05)
AC power cord *
(E30-)
Miniature phone jack
(E11-0904-05)
AC power cord bushing *
(J42-)
Optical receiving module
(W02-2716-05)
Rectangular receptacle
(E58-0033-05)
Pin jack
(E63-1124-05)x2
Pin jack
(E63-1130-05) Pin jack
(E63-1126-05)x3
AC outlet *
(E03-)
Pin jack
(E63-1113-05)x2
Screw terminal board
(E70-0131-05)
Pin jack
(E63-1115-05)
Cylindrical receptacle
(E56-0030-05)x2
Pin jack
(E63-1123-05)
Screw terminal board
(E70-0133-05)
Miniature phone jack
(E11-0907-05)
Miniature phone jack
(E11-0347-05)
Pin jack
(E63-1111-05)x2
Cylindrical receptacle
(E56-0028-05)
Illust is VR-5700.
70%
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KRF-X9995D/X9995D-S/VR-5700/5900
2
CONTENTS / ACCESSORIES
CONTENTS / ACCESSORIES .................................. 2
DISASSEMBLY FOR REPAIR....................................3
BLOCK DIAGRAM ......................................................5
ADJUSTMENT ..........................................................14
WIRING DIAGRAM ...................................................16
PC BOARD .............................................................. 17
SCHEMATIC DIAGRAM .......................................... 30
EXPLODED VIEW ....................................................60
PARTS LIST..............................................................62
SPECIFICATIONS ....................................................88
Contents
RFREMOTE CONTROL UNIT
RC-R0910
2WAYLCD REMOTE CONTROL UNIT
+
-
+
-
12 3 45 6 78 9
10 11 12
+10 0 +100
/
/
Batteries AM Loop Antenna
(T90-0852-05) FM Antenna
(T90-0855-05)
Battery cover(A09-1166-08)
Battery cover(A09-1177-08)
Pen(W01-0976-08)
Remote control unit
(A70-1453-05): RC-R0913
ENTER
V
O
L
U
M
E
UP
DOWN
CONFIRM
ON/STANDBYCONTRAST REMOTEOFF
Remote control unit (PowerTouch)
(A70-1456-05): RC-R1111
(A70-1457-05): RC-R1012
(A70-1458-05): RC-R1013
AC plug adaptor
* Refer to parts list.
*.............. (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.)
(T90-0850-05)
U.S.A. only
Antenna ass'y
Accessories
Manufactured under license from Dolby Laboratories.
Dolby , Pro Logic , AC-3 , and the double-D symbol are
trademarks of Dolby Laboratories. Confidential Unpub-
lished Works. ' 1992-1997 Dolby Laboratories. All rights
reserved.
Manufactured under license from Digital Theater Sys-
tems, Inc. US Pat. No. 5,451,942 and other world-
wide patents issues and pending. DTS and DTS
Digital Surround are trademarks of Digital Theater
Systems, Inc. ' 1996 Digital Theater Systems, Inc.
All rights reserved.
, HDCD¤, High Definition Compatible Digital¤
and Pacific Microsonics are either registered trade-
marks or trademarks of Pacific Microsonics, Inc. in
the United States and/or other countries. HDCD sys-
tem manufactured under license from Pacific Micro-
sonics, Inc. This product is covered by one or more
of the following: IN the USA: 5,479,168, 5,638,074,
5,640,161, 5,808,574, 5,838,274, 5,854,600,
5,864,311, 5,872,531, and in Australia: 669114. Other
patents pending.
TM
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KRF-X9995D/X9995D-S/VR-5700/5900
3
DISASSEMBLY FOR REPAIR
2x8
3
4
5
6
1x61
CN10
X07
C/5
X25
C/11 X25
B/11
CN102
CN16
CN103
X13
A/6
CN101
10 x2
10
11 10 x2 10 x2
7
8
9
X25
B/11
X11
A/2
X05
CN1
FRAME(A)
FRAME(C)
FRAME(B)
10 x2
12 x2
12
How to Remove the Front Panel and
the Motor Assy
1. How to Remove the Front Panel
1. Remove the screws (1X3) on top of the panel.
2. Remove the screws (2X9) located at the the bot-
tom of the panel.
3. Disconnect the cable (3) and connectors (4,5)
on the X13 A/6.
4. Disconnect the connector (6) on the X07 A/5.
5. Cut the tie band (7X7) as shown in the figure.
6. Remove the screw (8X1) on the X25 F/11.
7. Disconnect the connector (9) on the X25
G/11.(Except K/P type)
8. Remove the hooks (0X2) on the sub panel.
9. Remove the front panel in the direction of arrow.
2. How to Remove the Motor Assy
1. The motor assy can be separated by removing
screws (-X4).
Disassembling the Rear Panel and
How to Replace the Power Transistor
1. Disconnect the CN10 on the X07 C/5.
2. Remove all of screws (1X61) and digital caps
(2X8) on the rear panel.
(The number of screws and caps are vary accord-
ing to the models).
3. Disconnect the cable CN16 (3) on the X13 A/6.
4. Disconnect the flexible cables CN101(4) on the
X25 C/11, CN102 (5) and * CN103 (6)on the X25
B/11.
* (K/P type only).
5. Remove the rear panel in the direction of arrow.
6. Remove the screw (7), then remove the X25 B/11.
7. To remove the tuner unit, disconnect the CN1 (8)
and remove a screw (9).
8. Remove the screws (0X9) on the frames (A/B/C),
push rivet (-) and PC support (=x2)on the X11
A/2.
HOOK
X13
(A/6)
CN3
CN2
CN1
MOTOR AC CONNECTOR
(EXCEPT K/P)
X25
(F/11)
X25
(G/11)
X07
(A/5)
CN8
KRF-X9995D/VR-5900
45
3
x3
1
x5
2
x7
7
x4
2
8
6
9
10 x2
11 x4
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4 2
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KRF-X9995D/X9995D-S/VR-5700/5900
4
DISASSEMBLY FOR REPAIR
9. To remove the frame A rearward, cut the tie bands
(~X4) on the frames.
10. Remove a screw (!), then remove a thermostat.
11. Remove the screws (@X10), then remove a frame (D),
a cover and X07 B/5.
12. To remove a power amplifier unit (X07 A/5), remove
the screws (#x4), and a PC support ($x2).
13. Set up the X07 A/5 in the direction of arrow as shown
in the figure.
14. Replace the defective transistor.
KRF-X9995D/
VR-5700/5900
15 x2
15 x2
15 x2
15 x3
15
X07
B/5
FRAME(A)
FRAME(D)
X07
A/5
X07
A/5
16 16
16
16
17 x2
14
13 x4
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KRF-X9995D/X9995D-S/VR-5700/5900
5
BLOCK DIAGRAM
REC OUT SW
TAPE2
REC BUFFER
OUTPUT MUTE
ON
DIG REC
200mV
36mV
200mV
200mV
INPUT SEL.
ZONE A
BUFFER
DIG REC OUT
(0dB or +6dB)
OPTICAL OUT
COAXIAL OUT
COAXIAL
OPTICAL
DIGITAL INPUT SEL.
OPTICAL
COAXIAL
COAXIAL
OPTICAL
OPTICAL
COAXIAL
COAXIAL
OPTICAL
OPTICAL
COAXIAL
COAXIAL
OPTICAL
VIDEO2
VIDEO3
DVD(6ch IN)
VIDEO4
CD-R
MD/TAPE1
CD
AV AUX IN
200mV
INPUT SEL.
ZONE B
CD2
TAPE2 MON1
2.5mV (38dB) BUFFER
LINE (0.-3.-6dB)
OFF -3dB
ON -6dB
BUFFER
INPUT ATT
BUFFER
(-6dB)
200mV
MAX:1.0Vrms
FL.FR
SUB
CENTER
SL.SR
SBL.SBR
(0dB)
50kHz LPF
1kHz LPF
(0dB)
(0dB)
(0dB)
(0dB)
50kHz LPF
50kHz LPF
50kHz LPF
SW ON
DIG
SW OFF
DIG
ANA
CONFIG-2
FILTER
ON
ANA TONE OFF
TONE
(0dB)
TONE
OFF
ATT OFF
ZONE B
LINE BUFFER
BUFFER
BUFFER
BUFFER
(+15dB)
SUB
6ch IN
CENTER
6ch IN
6ch IN
SL SR
6ch INPUT SEL.
SP B
CENTER
SL.SR
SBL,SBR
SUB
(4.7dB or 14.7dB)
(14.5dB)
(5.2dB or 15.2dB)
(5.2dB or 15.2dB)
(5.2dB or 15.2dB)
(5.2dB or 15.2dB)
A-10dB GAIN CONT.
ZONE B
ZONE B
B SOURCE
AMPLIFIER
(29dB)
AMPLIFIER
AMPLIFIER
(29dB)
(29dB)
F/C/SW-MUTE
SP B/S-MUTE
PRE S-MUTE
PRE ZB-MUTE
SUB-MUTE
RELAY CS
RELAY A
RELAY B
OUTPUT MUTE
K5
K1
K3
K4
K2
Y
PB/CB
PR/CR
PB/CB
PR/CR
Y
6dB AMP
6dB AMP
75ohm DRIV.
B SOURCE
PAL
NTSC
75ohm DRIV
6dB
75ohm DRIV
6dB AMP
75ohm DRIV
NONE
CRAMP
NONE
CRAMP
L601(K/P/J)
L603(OTHERS)
OUTPUT MUTE
L601(K/P/J)
L602(OTHERS)
AC IN
RELAY POWER
FAST OFF
ATT O N
VIDEO2 REC
VIDEO1 REC
CD-R REC
MD/TAPE1 REC
MUTE
Q11,12
MUTE
Q1,2 IC4
CD2/TAPE2 REC
CENTER
SUB
SL.SR
L.R
DVD
6ch IN
IC32
VIDEO4 IN
CD1 IN
CD2/TAPE2 MONI
CD-R IN
MD/TAPE1 IN
IC22
VIDEO3 IN
VIDEO1 IN
VIDEO2 IN
FM AM
TUNER
IC1
EQ
PHONO IN
IC28
IC8.9
ADC
IC7
DIR
IC6
DSP
EP ROM
SDRAM
SDRAM
DAC
IC31
X08 IC32
X08 IC33
X08 IC34
DAC
DAC
DAC
IC11
X08
IC17
IC14
X08
X08
IC20
IC12,13
IC18,19
IC21,22
IC15,16
IC18,19
TONE
IC34
IC23
IC5
IC26
IC27 (2/2)
IC27 (1/2)
IC24
FL.FR
VOLUME
VOLUME
CENTER
SBL.SBR
VOLUME
VOLUME
SL.SR
SUB W
VOLUME
VOLUME
ZONE B
IC8
IC10
IC12
IC35
IC10
IC6
IC9
IC11
IC36
IC13
IC7
IC11
Q1,2
Q101
Q51,52
Q301-320
MUTE
PHONES
L.R
SL.SR
C
SL.SR
C
L.R
ZONE B-SPEAKERS
ZONE B
SW
SBL.SBR
B-SPEAKERS
A-SPEAKERS
PRE OUT
1V
IC23
IC24
VIDEO3
DVD
COMPONENT Y
Cb
Cr
MONITOR OUT
X13,IC701-703 or X35,IC1-3
AV AUX
VIDEO4
VIDEO2
VIDEO3
VIDEO1
IC22
IC21
DVD/6ch
DECODER
4.43MHz
3.58MHz IC5
X35
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE MONITOR
ZONE B
MUTE
MUTE
MUTE
MONITOR
ZONE A
VIDEO2 REC
VIDEO1 REC
OUT
COMPOSITE
SEPARATE C
DVD/6ch
VIDEO1
VIDEO3
VIDEO2
VIDEO4
AV AUX
IC602 VIDEO1 REC
VIDEO2 REC
MONITOR
MUTE
MUTE
MUTE C OUT
AV AUX
DVD/6ch
VIDEO4
VIDEO2
VIDEO3
VIDEO1
SEPARATE Y IC601
Y OUTVIDEO2 REC
VIDEO1 REC
MUTE
MUTE
IC604 IC606
BPF
IC603 IC605 MUTE
TRAP
MONITOR
SYSTEM CONTROL
SL16 TEXT
TV POWER SENSOR
RELAY COMTROL
RS232C
RDS
TUNER
TONE ON/OFF
DIG.ANA.SEL.
INPUT ATT
REC OUT SW
ANALOG SW
ZONE A SEL.
ZONE B SEL.
SUB-MUTE
MUTE CONTROL
PRE S.SB
PRE ZONE B
SP SL.SR/B
FL.FR.C.SW
OUTPUT
TONE CONTROL
VOLUME CONTROL
RELAY A
RELAY POWER
RELAY B
RELAY CS
SP RELAY CONT.
FL
FL DRIVER
MAIN u-COM
SUB u-CON
LED DISPLAY
KEY MATRIX
RF/IR RECEIVER
DOOR MOTOR CONT.
FAN DRIVE
IR IN/OUT B
u-COM
IR IN/OUT A
I/V PROTECT DET.
THERMAL SENSOR
OUT POWER DET.
IR TRANSMIT
EP-ROM
DAC
DSP UNIT
DIR
DSP
ADC
VIDEO SELECTOR
DIG.INPUT SEL.
X25,ED1
X25,1IC
X13,IC3
X08,IC43
for VIDEO UNIT
+6V 1st AVR
+6V 1st AVR
for DSP UNIT
TONE CONTROL
VOLUME
ANALOG SW
for POWER AMP
60V SUPPLY
-35V AVR
for FL V-LOAD
FL FILAMENT
-15V 1st AVR
for u-COM
+30V for
RELAYS & FAN
BACK UP
5.6V AVR
IR RECEIVER
THERMAL SENSOR
u-CON CONTROL
X13,Q41
X13,Q45
X13,Q33,34
X07,D100
X07,Q407
X13,D71
X13,Q51
X13,IC1
POWER SUPPLY
OP AMP
17V AVR
SUB TRANS
MAIN TRANS
AUDIO SECTION
VIDEO SECTION
(X08-) , (X25- )
(X25- )
(X08- )
(X07- )
(X25- )
(X11- )
(X13- ) / (X35- )
(X11- )
(X13- )
VR-5080/5090/5700/5900
KRF-X7775D/X7775D-S/X9995D/X9995D-S
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KRF-X9995D/X9995D-S/VR-5700/5900
6
CIRCUIT DESCRIPTION
0 : Pull down,1:Pull up
SET TYPE TYPE
BAND
RECEIVING
FREQUENCY RANGE
CHANNEL
SPACE IF PLL
DIODE SW(X13)
DSW3
(R282,R285)
DSW2
(R292,R279)
DSW1
(R296,R284)
DSW0
(R297,R288)
K, P, R K1
1700
FM 87.5MHz-108.0MHz 100kHz +10.7MHz 25kHz 0000
AM 530kHz-1700kHz 10kHz
+450kHz 10kHz
Y, M, I,
C, V
K2
1610
FM 87.5MHz-108.0MHz 100kHz +10.7MHz 25kHz 0011
AM 530kHz-1610kHz 10kHz
+450kHz 10kHz
K, P K4
1700
RBDS
FM 87.5MHz-108.0MHz 100kHz +10.7MHz 25kHz 1010
AM 530kHz-1700kHz 10kHz +450kHz 10kHz
Y, M, I,
C, V,
E, X, H E1 FM 87.5MHz-108.0MHz 50kHz +10.7MHz 25kHz 0001
AM 531kHz-1602kHz 9kHz
+450kHz 9kHz
E, T E3
RDS
FM 87.5MHz-108.0MHz 50kHz +10.7MHz 25kHz 0101
AM 531kHz-1602kHz 9kHz
+450kHz 9kHz
Y, M, I,
C, V MK2/E1 are switched by DSW1. (DSW1 = 1:K2type, 0: E1type) 00X1
DIODE SW(DSWx) 0 = NO DIOE(1 = WITH DIODE
X = TRANSISTOR SW(0=OFF/1=ON)
1. Initialization
1-1 The Initial Setting
•Insert the power cord to AC wall outlet by pressing the "POWER" key ON/STANDBY.
2. Destination List of Tuner
3. Conditions according to the models or destination
3-1 Distinction of Destinatio
: u-com (X13,IC3) Port 54
Type Voltage : Max 5.0V
K2 0~0.52
K1 1.61~2.49
K4(RBDS) 2.51~3.39
E3(RDS) 3.41~4.45
E1 4.47~5.00
Models ✽Voltage : Max 5.0V
VR-5080 NO 0~0.37
VR-5090 YES 0.39~1.10
VR-5700 YES 1.12~1.84
VR-5900-S YES 1.86~2.49
KRF-X9995D/D-S YES 2.51~3.14
KRF-X7775D/D-S YES 3.16~3.88
KRF-X9995D-S
(M/X TYPE) NO 3.90~4.61
KRF-X7775D-S
(M/X/V TYPE) NO 4.63~5.00
3-2 Distinction of Models : u-com (X13,IC3) Port 53
✽ Switching of RF or Front IR and Rear IR Receiver Terminal.
P.ch K1 K2 K4 E1 E3
1 FM 98.3M FM 98.3M FM 98.3M FM 98.3M FM 98.3M
2 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
3 FM 89.1M FM 89.1M FM 89.1M FM 89.1M FM 89.1M
4 FM 108.0M FM 108.0M FM 108.0M FM 108.0M FM 108.0M
5 FM 90.0M FM 90.0M FM 90.0M FM 90.0M FM 90.0M
6 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
7 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
8 AM 1610K FM 87.5M AM 1610K FM 87.5M FM 87.5M
9 AM 1700K AM 1610K AM 1700K AM 1602K AM 1602K
10 AM 1000K AM 1000K AM 1000K AM 999K AM 999K
11 AM 630K AM 630K AM 630K AM 630K AM 630K
12 AM 1440K AM 1440K AM 1440K AM 1440K AM 1440K
13 FM 106.0M FM 106.0M FM 106.0M FM 106.0M FM 106.0M
14 AM 530K AM 530K AM 530K AM 531K AM 531K
15 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
16 FM 98.0M FM 98.0M FM 98.0M FM 98.0M FM 98.0M
17 FM 98.5M FM 98.5M FM 98.5M FM 98.5M FM 98.5M
18 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
19 AM 990K AM 990K AM 990K AM 990K AM 990K
20 FM 97.4M FM 97.4M FM 97.4M FM 97.7M FM 97.7M
4. Tuner Preset Memory
P.ch K1 K2 K4 E1 E3
21 AM 530K AM 530K AM 530K AM 531K AM 531K
22 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
23 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
24 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
25 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
26 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
27 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
28 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
29 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
30 FM 106.0M FM 106.0M FM 106.0M FM 106.0M FM 106.0M
31 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
32 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
33 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
34 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
35 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
36 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
37 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
38 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
39 FM 108.0M FM 108.0M FM 108.0M FM 108.0M FM 108.0M
40 AM 1000K AM 1000K AM 1000K AM 945K AM 945K
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KRF-X9995D/X9995D-S/VR-5700/5900
7
CIRCUIT DESCRIPTION
5.Test Mode
5-1 Setting Method of the Test Mode
•Turn on the power supply while pressing the "INPUT SELECTOR DOWN" key, to make a set in test mode.
5-2 Canceling the Test Mode
•The system is initialized and the test mode is cancelled if unplug the AC power cord from an AC power wall outlet.
5-3 Contents of the Test Mode
✽ The following operation is available when the FL is all lighting up mode only.
Key Operation Display
SOUND Set up the RF frequency to428MHz. RF BAND
LISTEN MODE Set up the RF frequency to422MHz. RF BAND
THX Indicated the tuner destination in the FL. EX. TYPE E1
MEMORY Changed the dimmer off/1/2 cyclically. ALL FL Light ON
6. Main Microcomputer: uPD784217A518 (X13, IC3)
6-1 Main Microcomputer Periphery block diagram
X13,IC6
X11(IC2/21) LCD Remote Cont.
Selector IC Transmitter IC Protection
NJU7312AM uPD17215GF
X11(IC3/22/24)
Selector IC X13,IC5
NJU7313AM Serial Parallel Fan X07,K6
X11,IC23 TC74HC164AF PWR Relay
Selector IC X07,K1~k4
NJU7311AM SP. Relay
X11,IC6
Vol. IC 97~99 1,2 94,95 88
TC9459N 78~82 Mute Circuit
X11,IC8 X08,IC43
Vol. IC Sub u-Com
TC9459N 73,74 uPD784224K507
X11,IC10
Vol. IC
TC9459N 65,66 UART
X11,IC12 X13, IC3 X25,ED1
Vol. IC X25,J201 FL
TC9459N Main Microcomputer 36
X11,IC35 X25,IC1
Vol. IC uPD784217A518 3~7 FL Driver
TC9459N uPD780204
X11,IC34 Power/Input
Tone Cont. IC 48,60 Down Key X25
TC9184AP Panel Key
Model Type 53 54 Destination
X05-513X, IC2 SW
Tuner Unit 25~80
LC72131 58,59 Panel KRF-X9995D
X05-510X, IC2 25,26,30 REM2 Door VR-5900 only
PLL for Remote 93 8,10 50
Control
LV2105V
Except KRF-X9995D and Rotary Video X13(IC502,504,505)
KRF-X7775D Encoder Selector IC (IC603,604,701~703)
X25,S19
X25,IC401 Relay Cont.
RF/IR IN IR Receiver
SWITCH IR SEL. Except KRF-X7775D (M/X/V TYPE) and
KRF-X9995D/ KRF-X9995D (M/X TYPE)
VR-5900 only
SL16
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KRF-X9995D/X9995D-S/VR-5700/5900
8
CIRCUIT DESCRIPTION
Port No. Port Name I/O Function
1 REM DA O IR transmitter IC(X13,IC5) control data output.
2 REM CK O IR transmitter IC(X13,IC5) control clock output.
3 FL CLK O Clock output to FL driver.
4 FL DIN I Data input from FL driver.
5 FL DOUT O Data output to FL driver.
6 FL STB O Strobe output to FL driver.
7 FL RST O Reset output to FL driver.
8 ENC B I Input port of volume encoder.
9 VDD - +5V power supply.
10 ENC A I Input port of volume encoder.
11 SEL CLK O Clock output to selector IC.
12 SEL DATA O Data output to selector IC.
13~15 SEL STB1~3 O Strobe (1~3) output to selector IC.
16 TONE CLK O Clock output to tone control / selector IC.
17 TONE DATA O Data output to tone control / selector IC.
18 TONE STB O Strobe output to tone control IC.
19 VOL CLK O Clock output to volume IC.
20 VOL DATA O Data output to volume IC.
21 VOL STB2 O Strobe 2 output to volume IC.
22 TEST/VPP - Connected to GND.
23 STEREO I Tuner stereo signal detection port.
24 SD I Tuner SD signal detection port.
Clock output to PLL (LC72131) IC.
25 RF PLL CLK O ✽Clock output to PLL IC (LV2105V) for RF remote controller.
✽ Except KRF-X7775D/9995D
Data output to PLL(LC72131) IC.
26 RF PLL DATA O ✽Data output to PLL IC (LV2105V) for RF remote controller.
✽Except KRF-X7775D/9995D
27 PLL DO I Data input from PLL (LC72131)IC.
28 PLL CE O Chip enable to PLL (LC72131) IC.
29 T MUTE O Mute control to tuner.
30 RF PLL CE O PLL (LV2105V)CE for RF remote controller. (VR series only)
31~33 P MACRO A~C O Output port for perfect macro (A~C). ( Refer to 7-6)
34 TV SENS I Detection port of TV signal. ( Refer to 7-7)
35 VOL STB1 O Strobe 1 output to volume IC.
36 S DATA I/O SL16 data input/output.
37 VDD - +5V power supply
38 X2 - Crystal resonator (12.5MHz) connection.
39 X1 - Crystal resonator (12.5MHz) connection.
40 VSS - Connected to GND.
41 XT2 - Unused.
42 XT1 - Unused.
43 RESET I Reset signal input for main microcomputer.
44 CE I Detection port of chip enable.
45 S BUSY I/O Busy signal input/output.
46 232C DET I Detection port of RS232C communication. (Except KRF-X7775D)
47 RDS CLK I Clock input of RDS demodulator IC. (E/T type only)
48 POWER KEY IN I Detection port for power key.
49 REM1 I Remote control signal input 1 (front panel).
50 REM2 I Remote control signal input 2 (IR receiver).
Except KRF-X7775D (X/M/V)and KRF-X9995D (M/X)
6-2 Port Description of Main Microcomputer : uPD784217A518 (X13, IC3)
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KRF-X9995D/X9995D-S/VR-5700/5900
9
CIRCUIT DESCRIPTION
Port No. Port Name I/O Function
51 VDD - +5V power supply
52 AVREF - Reference voltage input.
53 MODEL SEL I Discrimination port for model type.
54 DSW0 I Detection port for tuner destination SW 0.
55 THERM SW I Detection port for thermal switch. (Refer to 7-1)
56 S LEVEL I RDS signal level input. (E/T type only)
57 RDS DATA I Data input of RDS demodulator IC. (E/T type only)
58 CLOSE SENS I Detection port of close sensor for panel door. (Refer to 7-3)
(KRF-X9995D/VR-5900 only)
59 OPEN SENS I Detection port of open sensor for panel door. (Refer to 7-3)
(KRF-X9995D/VR5900 only)
60 INPUT DOWN KEY IN I Detection port of input down key.
61 AVSS - Connected to GND.
62 P MACRO IN I Input port of perfect macro. (Refer to 7-7)
63 RELAY CONT O Relay control output. (Refer to 7-4)
64 AVREF1 - Reference voltage input.
65 1394/TEXT RX I CD TEXT UTRA communication data input.
66 1394/TEXT TX O CD TEXT UTRA communication data output.
67 SUB RESET O Reset signal output to sub microcomputer.
68 RS RX1 I RS232C communication data input 1. (Except KRF-X7775D)
69 RS TX1 O RS232C communication data output 1. (Ditto)
70 RS RX2 I RS232C communication data input 2. (Ditto)
71 RS TX2 O RS232C communication data output 2. (Ditto)
72 LED O Control port for pro logic2 led.
73 SDT I Communication data input from sub microcomputer.
74 MDT O Communication data output to sub microcomputer.
75 MCK O Clock output to sub microcomputer.
76 MREQ O Communication master request.
77 SREQ I Communication slabe request.
78 F/CSW MUTE O Mute control port for room A.
79 PRE S/B MUTE O Mute control port for pre out surround.
80 SP S/B MUTE O Mute control port for S/B speakers.
81 PRE ZB MUTE O Mute control port for pre out B (zone B).
82 V/RECMUTE O Mute control port for video rec out.
83 10dB GAIN O Switching port for +10dB amplifier.
84 RELAY CS O Mute control port for center/surround speakers.
85 RELAY B O Relay control port for speaker B.
86 RELAY A O Relay control port for speaker A.
87 RELAY TR O Switching port for transformer tap.
88 POWER O Power relay control port.
89 FAN H/L O Control port for fan motor (H/L).
90 FAN ON/OFF O Control port for fan motor (on/off).
91 10W I 10W detection port for fan control.
92 1W I 1W detection port for fan control.
93 IR SELECT O RF/IR IN switch control. (Refer to 7-5), KRF-X9995D/VR-5900 only
94 V PROT I Detection port of protection signal.
95 I PROT I Detection port of protection signal.
96 STBY LED O Control port for standby led.
97 REM RWR I RWR from LCD remote controller.
98 REM ENB I Chip enable from LCD remote controller.
99 REM REQ O Request to LCD remote controller.
100 VSS - GND
✽ Refer to 7-1
✽
✽
✽
✽
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KRF-X9995D/X9995D-S/VR-5700/5900
10
CIRCUIT DESCRIPTION
TV POWER TV SENS.(34Pin)
ON H
OFF L
SELECTOR RELAY CONT.(63Pin)
PHONO
TUNER
CD1
MD/TAPE1 0
CD-R
CD2/TAPE2 MONITOR
VIDEO1
VIDEO2
VIDEO3 1
VIDEO4
DVD
AV/AUX
OPEN CLOSE
SENS(59Pin) SENS(58Pin)
END OF OPEN ACTION 0 1
END OF CLOSE ACTION 10
DOOR OUT1(42Pin) DOOR OUT2(41Pin)
OPEN 1 0
CLOSE 0 1
STOP 0 0
BREAK 1 1
Fan 10W(91Pin) 1W(92Pin) THERMAL SW(55Pin) FAN ON/OFF(90Pin) FAN H/L(89Pin)
FAN STOP H H L 0 1
FAN LOW SPEED H L L 1 1
FAN HI SPEED L L L 1 0
FAN LOW SPEED H H H 1 1
HL H 1 1
FAN HI SPEED L L H 1 0
7. Description of the Circuit Control
7-1 Fan Control (X13,IC3)
7-2 Door Open/Close Control : FL Driver(X25,IC1)
KRF-X9995D/VR-5900 only
7-3 Open Close Sensor(X13,IC3 : Main u-com)
KRF-X9995D/VR-5900 only
7-4 Relay Control : X13,IC3(Main u-com)
7-5 IR Remote Control
X25,IC401 X25,IC401 IR SELECT
RF IN IR IN X13,IC3
(7Pin) (6Pin) (93Pin)
WITH RF RF ON X O 0
VERSION RF OFF O X 1
FRONT X O 0
WITHOUT IR ON
RF VERSION FRONT O X 1
IR OFF
7-6 P Macro Video Switch(X13,IC505)
P MACRO P Macro P Macro
SELECTOR A(3Pin) B(4Pin) C(5Pin)
VIDEO1 0 0 0
VIDEO2 0 1 0
VIDEO3 1 0 0
VIDEO4 1 1 0
DVD 0 0 1
7-7 Video/TV Detection : X13,IC3
Video Detection
Video Signal P Macro IN(62Pin)
Yes H
No L
TV Detection
X13, IC3
Main u -Com
X25,IC11
X08, IC5 X08, IC7
Digital
Selector A/D
X08, IC11,14
IC17, 20
D/A
X13 X08, IC6
Video
Selector DIR
IC502,504,505
IC603,604
IC701~703
X08, IC31
D S P
X08, IC43
Sub Microcomputer
8. Sub microcomputer: uPD784224K507(X08, IC43)
8-1 Sub microcomputerperiphery block diagram
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299