TCL DVD-F70 User manual

SERVICE MANUAL
DVD-F70
DVD-F61

1
Table of Contents
Failure & Troubleshooting of Power Supply .......................................................................................... 4
Troubleshooting and service of the Loader ........................................................................................... 4-5
Troubleshooting and service of Decoding Part ......................................................................................5
Troubleshooting and service of Video Part ............................................................................................6
Troubleshooting and service of Audio Part ............................................................................................6
Troubleshooting and service of KARAOKE Part ....................................................................................6
Servo schematic circuit 2 .................................................................................................................... 9
Decoder schematic circuit 2 ................................................................................................................ 11
Front control board schematic circuit ................................................................................................... 12
Karaoke schematic circuit .................................................................................................................... 13
Figure 1. Schematic Diagram .............................................................................................................. 2
Figure 2. Basic Circuit Diagram ........................................................................................................... 3
Tableof Contents .................................................................................................................... 1
Output schematic circuit ...................................................................................................................... 14
Power schematic circuit....................................................................................................................... 15
Decoder schematic circuit 1 ................................................................................................................ 10
Servo schematic circuit 1 .................................................................................................................... 8
Full screen display or no display on VFD .............................................................................................. 7
No operation or some keys on the front board, disordered display on VFD ............................................ 7
No sensitive remote reception, or no reception from the remote handset ............................................... 7
The machine can not be turned on or off ............................................................................................... 7

2
Figure 1 Schematic Diagram(TD-F61/F62/F63/F70)
1
MUTE
GND/VSDA0
GND
JP1
POWER
BOARD
+5VP
GND
FRONT
BOARD
MAINL
M/L
Y/G
5V
M/L
1
CN1
CON301
CN4
SL+
1
GND
5V
5V
VS
5
VA-
12 4
Cr/R
PCON
VSTB
VA+
AG
MICD/HR
-24V
CON101
ASPDIF
6
M/R
TRIN
AC1
ABVOARD
VSCK
CN2
JP1
1
AC2
9
15
VCC
SL-
GND
-24V
GND
VSDA
DL OV DA D
L S
2
AC1
VCC
M/R
CN4
CVBS
AG
Cb/B
GND
VA+
PCON
SP+
MIC/HL
SUB
KARAOKE
BOARD
3
3.3V
CN8
SP-1
Sc
GND
IR
20
TD-F61/F70/F71
6
CN6
3
TROUT
MAINL
1
Sy
VA-
2
TD-F62/63/F50
VCC
AC2
148
VA-
GN D
5
CN5
KARAOKE
BOARD
LOAD+
CENT
VA+
GND
RS
6
7
MAINBOARD
HS
MAIN BOARD
DVD LOAD
AV BOARD

Figure 2 Basic Circuit Diagram
3
FLASH
EEPROM
AUDIOAMP&LPF
VIDEOD/A
CS4954/4955
PT6312(TD-F50/F61/F62/F63)/PT6554(TD-F70/F71)
WM8746
2402
SDRAM
REMOTEHANDSET
MT1369
VFD/KEY
1M*8
PT2222-001
VIDEOLPF&
DRIVE
SPDIFOUT
TOP233Y(TD-F50/F61/F62/F63)TEA1523P(TD-F70/F71)
RF
POWERSUPPLY
2*16Mbit
PT2399ECHO
MC4558
DECODER&SERVO
DL OV AD D
MC 4 5 5 8MI CA MP
A U D I OD /A
MT1336
DVD LOAD VIDEO LPF
& DRIVE
VIDEO D/A
CS4954/4955 SPDIF OUT
WM8746
AUDIO D/A
MC4558
AUDIO AMP&LPF
Pt2399 ECHO
MC4558 MIC AMP
POWER SUPPLYREMOTE HANDSET

Rated Voltage Permissible Range Working Current Working Load
VCC + 4.75V ~5.45V 17mA Front board and muting circuit
+ 5V 4.75V ~ 5.45V 520mA Loader servo, motor driver, laser circuit,
audio D/A and TF circuit
+ 3.3V 3.20V ~ 3.46V 650mA Decoder board
VA+
VA-
+8V +/-10%
-8V +/-10%
15mA
15mA
Audio & Karaoke circuit
Audio & Karaoke circuit
-24V -20V ~ -25V 10mA Bias voltage of VFD on front board
Filament of VFD on front board
AC1-AC2 AC 2.8V ~ AC 3.5V 80mA
4
b. Troubleshooting and service
1. Troubleshooting and Service of Power Supply
a. Principle of power supply operating
Adopts switched-mode power supply module TOP233Y of TOPSWITCH company, it can protect
itself from over current, overheating, and short-circuit, etc. This circuitry mainly stabilizes at +5V,
and fluctuates within a permissible range, such as +5V, VA+, VA-, +3.3V and -24V. Please pay
attention to the high voltage inside the white paint of PCB while repairing. When using an oscillator
to measure this portion, an isolated transformer must be connected.
Circuit of power supply may output the following power sources:
a). If +5V voltage varies out of the permissible range, check whether sampling resistance R8 and
R9 (R422 and R423) are eroded, and whether the 1st pin of regulated voltage reference U3 (U402)
TL431 is at 2.5V. If the deviation is over 0.1V, TL431 is eroded and shall be replaced. During
maintenance, the +5V sampling circuit, i.e. D9, R5, R8, R9 and U4 (D415, R419, R422, R423, R421
and U403), shall not be open, otherwise, it may result in high voltage and damage other circuits on
the rear pole.
b). If all the output voltage is 0V, and a voltage of 300V or so exists at the positive pole of C8 (C403),
check whether +5V, +8V, -8V, -24V and +3.3V are short (whether Q401, Q402 and Q403 are open).
c). If +3.3V of AC1-AC2 is 0V and no display on VFD, check whether D6 (D408) is open. If the ribb
on wire is not in good contact, replace the corresponding ribbon wire.
Note: Components in the brackets are of TDE-F70/F71.
2. Troubleshooting and Service of the Loader
a. No running of loader
a). Check whether the 24P ribbon wire to loader is in good contact.

5
b). Check whether +5V voltage is normal.
c). Check whether laser voltage ( about 2V for VCD and 2.2V for DVD respectively ) exists at the C
pole of Q1 and Q2, and whether U2 and adjacent parts are damaged or weld falsely.
d). If the above parts are normal and no laser emits, replace the loader.
b. Read no disc
a). Check whether the ribbon wire from 24P to loader is in good contact.
b). Check whether the RFO signal of the 10th pin of CN6 is transmitted to the 96th pin of U1.
c). Check whether laser voltage (about 2V for VCD and 2.2V for DVD respectively) exists at the C
pole of Q1 and Q2, and whether the voltage is normal.
d) Check whether U1, U2 and adjacent parts are damaged or weld falsely.
e). If the above parts are normal, replace U1 or the loader.
c. Read DVD discs only or read other discs beyond DVD only
a). Check whether the ribbon wire from 24P to loader is in good contact.
b). Check whether laser voltage of 2V outputs at the C pole of Q2, and whether the 125th pin of U1
is at low level.
c). Check whether the pins from the 1st to the 38th of U1 and adjacent parts are weld falsely,
damaged or erode.
d). If the above parts are normal, replace U1 or the loader.
3. Troubleshooting and service of decoding part
a. No video, no audio, no display on VFD, and no operation of keys
a). Check whether the power sources of the decoder board are normal.
b). Check whether there is 27MHz signal output. If not, X1 crystal and adjacent parts are eroded or
damaged.
c). Check whether there is 81MHz signal output at R64. If not, check whether there is short circuit,
false welding or alien substance for audio D/Acircuit U5 and SDRAM U8 and U9.
d). Check whether the reset circuit composed of C7, R37 and D1 is normal (constant 0V after tens
of milliseconds of high level). If it is at low level constantly, C7, R37 and D1 are damaged.
e). If the reset level is normal, check whether the chip selection signal, address and data of the 12th
pin of U5 are normal.
f). Check U10 that whether the data of pins from the 1st to the 8th, hsync and vsync signal of the
10th and 11th pins, and 27MHz signal of the 29th pin are normal, and whether C162 and R68 are
normal. If not, replace U10.
g). When U5 works normally, check the connection between U8, U9 and U3. If abnormal, replace U8
or U9.
h). Replace the main chip U3 after making sure no damage to the adjacent parts and no short circuit
or false welding for the circuit board.

6
4. Troubleshooting and service of video part
1). Normal sound, no video picture
Check U10 that whether the data of pins from the 1st to the 8th, hsync and vsync signal of the 10th and 11th
pins, and 27MHz signal of the 29th pin are normal, and whether C162 and R68 are normal. If not, replace U10.
2). Abnormal color of the video picture
a). If there are horizontal or vertical streaks, or improper color appears on the picture after reading a disc, the
U3 decoding servo chip on the decoder board or U6 EEPROM may be in problems.
b). Check board whether the 3.3V and 2.5V power sources are normal, whether the ripple factor is too high,
and whether the data wire of Y(0, 7) between U3 and U10 is normal.
c). Check whether the video filter network circuit on the decoder board works normally.
5. Troubleshooting and service of audio part
a. Normal picture, no sound
a). Firstly, check whether the +8V and -8V power sources for the operational amplifier IC U12~U14 are normal.
b). Check whether the C poles of muting tube Q14, Q15, Q22, Q23, Q21 and Q20 are at low level constantly.
If so, the above tubes are not in good conditions.
c). Check whether the output of C poles of Q18 and Q19 are at high levels constantly. If so, Q18 and Q19 have
been broken down, or C209 are short.
d). Check whether the six audio signal lines on the 20P ribbon wire from decoder board to output board are in
good contact. If abnormal, replace the ribbon wire. Check the signal reaching the input of U12~U14. If the input
is normal while the output is not, replace the operational amplifier IC.
e). Check whether the signals of the 17th, 19th, 21st, 23rd, 25th and 27th pins of U5 on the decoder board are
normal. If not, check the signals of the pins from the 2nd to the 7th. If the clock signals of ACLK,ABCK and
ALRCK output by U3 are normal after R130, RN2 and R131 are disconnected, replace U11.
b. Distorted audio and loud noise
a). Firstly, check whether the +8V and -8V power sources for the operational amplifier IC U12~14 are normal.
b). Check whether the muting tubes are in good conditions.
c). Check whether the signals of the 17th, 19th, 21st, 23rd, 25th and 27th pins of U11 on the decoder board are
normal. If not, check the signals of the pins from the 2nd to the 7th. If the clock signals of ACLK,ABCK and
ALRCK output by U1 are normal after R130, RN2 and R131 are disconnected, replace U5.
c. Pop noise during ON/OFF
Check whether the MUTE signal line on the output board is broken, then check whether Q18, Q19, muting tubes
and adjacent parts are damaged or eroded.
6. Troubleshooting and service of KARAOKE part
a. Microphone with sound but no echo
a). Check whether the level of the 1st pin of U1 on the KARAOKE board is +5V. If not, check whether JP1 is
damaged.
b). If the voltage is proper, check whether there is anything wrong with the adjacent parts of U1.
b. No sound of microphone
a). Check whether the microphone indicator on VFD lights. If the level of C pole of Q16 is low, the C and E poles
of Q16 are short.
b). Check whether the power source of U2 on the KARAOKE board is normal and with microphone signal output.
If not, check whether the parts of input circuit for microphone jack are damaged and check whether the
microphone jack is rusty or short.
c. The sound of microphone can not be turned off
Check whether Q16 and Q17 are open or not in good contact.

7
d. self-excitation once KARAOKE is turned on
Check whether the adjacent parts of U1 on the KARAOKE board are damaged.
7. Full screen display or no display on VFD
a). Full screen display on VFD is often caused by abnormal -24V bias voltage. Check whether D5, C19 and R17
are disconnected.
b). If there is no display on VFD, firstly, check whether the filament lights in red. If not, and there is no 3.3V
voltage difference between AC1 and AC2, check whether D6, C9 and R21 are damaged. If the filament is not
red, while 3.3V voltage difference exists between AC1 and AC2, replace VFD.
c). If -24V and AC1-AC2 voltage are normal, check whether there are CS, DATA and CLK signals from CN301
on the front board. Then replace PT16312 (PT6554) under the condition that both of the above mentioned are
normal.
8. No operation of some keys on the front board, disordered display on VFD
Check whether the welding from the 12th, 13th, 15th pins of U301 to the 37th pin is in good conditions.
Check whether D301~D303 on the front board are damaged, whether circuit is disconnected, and whether R309,
R310 and R311 are open.
9. No sensitive remote reception, or no reception from the remote handset
Check whether the power source of the remote sensor is proper.
Check whether the remote handset is in good operation mode.
Use an oscillator to observe whether there is output wave from the 1st pin IR of the sensor after each pressing
of keys on the remote handset. If the remote handset is good, while no output from the sensor, the sensor is
damaged.
10. The machine can not be turned on or off
If the machine can not be turned on or off after pressing the STANDBY key on the remote handset and the
POWER key on the front board, replace the main chip U3.
Note: The above information is only for reference. If there is any mistake, please feel free to point out.

AVCC
SP+
TROPEN
C60
390P
RFON [ 2 ]
LDO1
RVCC L17
FB / 0805
+5VP
A
SL+
HTRC
C27
0.1u
C24 1u
+C8
100u
RVCCIN
R33
0(open)
TROPEN[ 2 ]
OPO
RFRP
GND
DMSO
TRIN
R15
750k
C37
0.033u
FMSO [ 2 ]
DMSO [ 2 ]
C54
150p
C17 0.1u
C46
0.1u
R17 20k
D
LDO1
SDATA
SCLK [ 2 ]SCLK
C20 0.1u
STBY
TRSO
R37
10k
FOSO [ 2 ]
FEO
FEO
SL-
C33 390p
L16
FB / 0805
ADIN[ 2 ]
+5V
RFO
TROPEN
FOSO
V20
TROUT
Q3
9012
+
C55
10u
R19
10K
RFVCC
SDEN [ 2 ]
MICD
R8 10k
AA
DMSO
C58
150p
CN8
1
2
R5 10k
R32
0(open)
OPO
+5V
CSO
C25 1u
C21 0.1u
E
FMSO
C31 0.015u
+5V
RFL
RFO
U2
BA5954
1
9
10
12
3
2
15
7
14
13
21
19
20
24
27
6
4
5
28
8
11
17
18
16
23
22
25
26
VINFC
PVCC1
PGND
VOSL+
CF2
CF1
VOTK+
VNFFC
VOFC+
VOFC-
PVCC2
PGND
VNFTK
CTK2
BIAS
VOSL
VINSL+
VINSL-
STBY
VCC
VOSL-
VOLD+
VOLD-
VOTK-
VINLD
PREGND
CTK1
VINTK
+5VP
LDO_AVCC
TRIN
L15
10uH,DIP
OP+
+C45
100u
C22 1u
+5VP
Q6
9013
V1P4
TRCLOSE
TRCLOSE
C32 10p
TRCLOSE
OP-
L19
10uH,DIP
LDO2
ENDM LIMIT
FMSO
PWMOUT2
R20 20K
TEO
SP+
CC
+C41
10u
RFOP
C30 27p
R29
1,0805
CN10
2PIN*2.0(OPEN)
1
2
TROPEN
MT1336E
SCLK
OP-
LDO2
+C43
10u
LDO_AVCC
MC
R16 0
TEO [ 2 ]
R24
1K
R14
330k
+5V
+
C12
47u
L20
FB / 0805
L18
FB / 0805
RFVCC1
ADIN
STBY
BDO
TRSO
ADIN
MC
C9
0.1u
R36
0(0805)
D
Q2
S8550
L21
FB AXIAL(open)
C56
0.1u
V2P8 [ 2 ]
OP+
R10 100k
V1P4
R9 27k
RFL
MDI2
B
SP-
SL+
URST
MICD
+C13
47u
R3 22
ML
C49
0.1u
A
R12
750k
C48
0.1u
SDATA
C52 (open)
BB
DV33
R6 10k
C38 0.1u
STBY
LIMIT
SL-
RVCCIN
TRSO [ 2 ]
V1P4 [ 2 ]
ENDM
D
ML
Q1
S8550
R1 100
URST
R25
220(0805)
C53
200p
PWMOUT2 [ 2 ]
URST
MD
DD
C34 390p
+5V
RVCCIN
R2 100
C29
0.1u
R22
1K
R35
0(0805)
BDO [ 2 ]
C
V2P8
CN6
HOP1200/0.5mm,24P
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
GND
Vc
VCC
E
F
D
A
B
C
RFO
GND
PDc
NC
VR
LDc
LDd
GND
VR
VCC
PDd
FO+
FO-
TR+
TR-
F
V1P4
R31
0(open)
V1P4
LOAD+
C57
0.1u
C23 1u
A
RFL
R13
330k
D1
1N4148
Q5
9013
V2P8
V1P4
SP-
Q4
9012
HTRC [ 2 ]
MICD
MDI1
FOSO
+
C6
100u
RFOP
HTRC
R18
20k
R34
0(0805)
B
B
RVCC
BDO
C47
0.015u
C18 0.1u
E
C
LOAD-
CSO
MD
TEO
FEO
R27
1,0805
Important
reduce
Noise
AVCC
R4 22
C11
0.1u
RFVCC
SDEN
SDEN
DV33
R87
1(0805)
R23 390R
V20
RFRP
CN9
1
2
C39
0.1u
RVCCIN
DV33
RFRP [ 2 ]
R26
220(0805)
C10 0.1u
C50
0.1u
R21 390R
(TO92)
RFOP [ 2 ]
+C7
10u
CN7
1
2
3
4
5
+5V
CSO [ 2 ]
MDI2
R7 10k
C44 0.1u
R28
1,0805
AVCC
C19 0.1u
PWMOUT2
RFVCC1
R11
33k
F
C40
0.1u
C35
0.1u
URST
C28
0.1u
C59
390P
C
RFON
MDI1
R30
1,0805
C42
0.1u
RVCCIN
TROUT
C26 1u
U1
MT1336E
128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103
38
37
36
35
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WGND RFSUBO LDO2 LDO1 MDI1 MDI2 AGC3 AGC2 WAVDD AGC1 WGAND SGND TNI TPI SVDD CDFON CDFOP SD SC AVDD IR AGND SB SA MD MC
VFO13
VDD
AGNDX
AGNDX
AGNDX
DPFO
DPFN
GNDP
HTRC
TRLP
TRLPA
CRTPLP
CRTP
HRFRP
LRFRP
DEFECT
VDDP
TEO
CSO
LVL
FEO
V20
VREFO
V2REFO
AVDDT
TM4
AGNDT
TM3
TM2
TM1
AGNDO
RFON
RFOP
AVDDO
AGNDX
AGNDX
WVDD
WOBSO
GND
UDGATE HDGATE
IO0 IO1 IO2 IO3 IO4 IO5 IO6 IO7 IO8 IO9
IOA IOB
VDDS
XCK16M
SCLK
GNDS
SDEN
SDATA
RST
DPDMUTE
AGNDP
AGNDX AVDDP
VCON
AVDDF
AGNDX
AVDDM
COSPHI
HALLCOS
REFCOS
AGNDM
HALLSIN
REFSIN
SINPHI
SW0
SW2
SW1
MOP
MON
AGNDX
AGNDX
CEON
CEOP
RFGCI
RFGCU
RFFGC
OSP
OSN
CDD
CDC
CDB
CDA
DVDRFIN
DVDRFIP
DVDD
DVDC
DVDB
DVDA
MA
MB
AGNDF
SDATA[ 2 ]
DV33 [ 2,3,4,5]
RFON
C36
470p
8
Servo schematic circuit 1
HEADER-5 (2mm)
2P,2.0mm,180
2PIN*2.0 180

9
VSCK
+C63
47u
RFOP [ 2 ]
ABCK
V25
R57 10
SDEN [ 2 ]
CAS#
(4)
DV33
DCKE
DQ25
ALRCK
PRD#
R44
4.7
CSO [ 2 ]
BA0
RFRPC
RFON
(1)
A18
+C72
47u
C76 1000p
+
C101 10u
PWMOUT2
DQ3
VCC5
R42
10k
R159
0R
DMSO
C71
0.1u
MA3
V1P4
C66
0.1u
X1
27MHz
(4)
PWMOUT2
DQ12
DQ21
Y1
DQ4
R39 (open)
ASPDIF
TEO [ 2 ]
A[0..19]
VSCK
(4)
AV33
HSYNC#
RFRP
GND
C94
0.01u
U3
MT1369E_208
53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104
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109
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105
1
2
3
4
5
6
7
8
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15
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19
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21
22
23
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25
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27
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DMVDD3 ALE IOOE# IOWR# IOCS# DVSS UP1_2 UP1_3 UP1_4 UP1_5 UP1_6 DVDD3 UP1_7 UP3_0 UP3_1 INT0# IR DVDD2 UP3_4 UP3_5 UWR# URD# XTALI XTALO DVSS RD7 RD6 RD5 RD4 DVDD2/3 RD3 RD2 RD1 RD0 RWE# CAS# RAS# RCS# BA0 DVDD3 RD15 RD14 RD13 RD12 DVSS RD11 RD10 RD9 RD8 VPVDD3 VCOCIN VPVSS
RFIP
RFIN
RFDTSLVN
SCOP
SCON
RFDTSLVP
ADCVDD3
HRFZC
RFRPSLV
RFRP_AC
RFRP_DC
RFLEVEL
FEI
CSO
TEI
TEZISLV
RFSUBI
ADIN
ADCVSS PDMVSS
PWM2VREF
PWMVREF
PDMVDD3
DVDD3
BDO
SLCK
SDEN
SDATA
WOBSI
UDGATE
DVDD3
IFGATE
VFO13
DVSS
PRST
ICE
YUV7 YUV6 YUV5
DVDD2
YUV4 YUV3 YUV2 YUV1 YUV0 DVSS
HSYN
VSYN
BLANK#
MC_DAT
SPDIF
APLLVDD3
APLLVSS
ACLK
ASDATA2
ASDATA1
ASDATA0
DVDD3
ALRCK
ABCK
RD16
RD17
DVSS
RD18
RD19
RD20
RD21
DVDD2
RD22
RD23
DQM2
DQM3
DVSS
RD24
RD25
RD26
RD27
DVDD3
RD28
RD29
RD30
RD31
DVSS
RA3
RA2
RA1
RA0
DVDD2
RA10
BA1
DQM0
DQM1
DVSS
RA4
RA5
RA6
RA7
DVDD3
RA8
RA9
RA11
CKE
CLK
DVSS
IREF
PLLVSS
LPIOP
LPION
LPFON
LPFIP
LPFIN
LPFOP
JITFO
JITFN
PLLVDD3
FOO
TRO
TROPENPWN
PWMOUT2
DVDD2
DMO
FMO
FG
DVSS
HIGHA0
HIGHA1
HIGHA2
HIGHA3
HIGHA4
HIGHA5
DVSS
HIGHA6
HIGHA7
AD7
AD6
AD5
AD4
DVDD3
AD3
AD2
AD1
AD0
IOA0
IOA1
DVDD2
IOA2
IOA3
IOA4
IOA5
IOA6
IOA7
A16
A17
IOA18
IOA19
DMVSS
(5)
VSDA
VCC5
ADIN
ASDAT[0..2]
A15
ABCK
GND
VSYNC#
HTRC
TRSO
C85 10n
C97 22pF
C114
0.1u
DCLK
CAS#
DQ26
V2P8
R38 0
URST
GND
FOSO
VSCK
(4)CS#
PWR#
GND
ACLK
V25
VSYNC#
C86 10n
C67
1000p
SCLK
CS#
(5)
F+
Y[0..7]
AD[0..7]
TxD
C73 20p
DV33
DQ16
ALRCK
URST
C81
100p
(4)
DQ28
SDEN
RFZC
R41
18k
C106
0.1u
C98
OPEN(1000pF)
GND
FOSO
A5
R40 100k
A17
DQ7
R49 0
DMSO [ 2 ]
VSCK
TEO
A6
V20
SCLK
C107
0.1u
V25
27MHZ
PRD# DQ8
1369P3_1
(5)
(4)
RxD
BDO
V25
DV33
DV33
SDEN
R45 8.2k
SDA
MA11
SCL
PCE#
A16
F-
A10
WE#
VSTB
HSYNC#
R88 0R
C68
1000p
TRSO [ 2 ]
DV33
DQ[0..31]
MICD
(5)
(4)
MA5
ACLKR48 33k
(4)
V1P4 [ 2 ]
PRD#
DV33
DQ17
GND
+C70
47u
CSO
DQM2
PWR#
DQM[0..3]
SDATA Y0
R56
4.7
FEO
VSCK
DQ30
R60 10
VSDA
RFL
VSTB
RFON
DV33
DV33
C116
0.1u
C78
150p
(5)
A0
DQ18
AD7
BA1
ASDAT2
RAS#
ASPDIF
RAS#
C77
150p
C105
0.1u
PCE#
27MHZ
WE#
RST#
C88 10n
U4
74HCU04(open)
1
2
3
4
5
6
78
9
10
11
12
13
14
AD[0..7]
RxD
C74 20p
DQ29
DQ19
R47 33k
DV33
BA[0..1]
DQ11
DCKE
Y4
C84
10n
ADIN[ 2 ]
CAS#
R43
4.7AV33
Y5
DQ5
GND
R53 33R
(5)
FOSO [ 2 ]
MA[0..11]
MD
ASDAT0
AD2
TEO
DQ23
A1
SDATA
MD
RAS#
V25
GND
DQ15
R52
33R(open)
C99
0.1u(open)
C65
0.1u
(4)
AV33
DQ6
AV33
HTRC [ 2 ]
FMSO [ 2 ]
PMUTE
GND
A3
FEO
A9
MD
CN5
CON13*2.0
1
2
3
4
5
6
7
8
9
10
11
12
13
(4)
ALRCK
DCLK
AD4
(5)
R46 750k
DQ24
A12
MA0
L22
FB AXIAL
C111
0.1u
AV33
ABCK
RFOP
ADIN
GND
AD0
C64
0.1u
DCKE
RFL
L23
OPEN(2.2uH)
WE#
SDA
DQ1
C69
0.1u
C112
0.1u
R160
33R
BA[0..1]
IR
(4)
1369P3_1
(4,5)
FMSO
VSDA
DQM0
A2
RFIN
V25
R59 10
SCLK [ 2 ]
V20 [ 2 ]
DQ13
AD3
DQ31
VSCK
MA4
Y3
(5)
A[0..19]
V2P8 [ 2 ]
RFRP [ 2 ]
MA7
C87 10n
ASDAT1
DQM3
AV33
+C79
10u
(4)
Y2
CSO
DQ22
SDATA[ 2 ]
DQ0
V1P4
RFRP
V25
C83
1u
RFON [ 2 ]
RESET#
R54
100K
Y[0..7]
+5VP
CN4
SERIAL/UP/4P,2.0m/m
4
3
2
1
(4)
ACLK
MICD
C93
0.015u
C100
0.1u
C75 1000p
(4)
DV33
R158
0R
DQ14
A8
AD5
DV33
C91
330p
C82
0.1u
R55
4.7
(4)
AD1
A4
HSYNC#
C96 22pF
URST
BDO
VSDA
C103
100p
C110
0.1u
C90
open
(5)
RFL
SCL DQ2
TROPEN
PWMOUT2 [ 2 ]
V25
GND
C113
0.1u
R51 15k
(4)
SDA
V25
URST
TROPEN
C89 100p
R50 10k
BDO [ 2 ]
-24V
PCE#
DQ27
RFOP
MA6
DCLK
C102
120pF
A19
DQ9
MA[0..11]
HTRC
C104
0.1u
RFIP
A7
DQM1
DQM[0..3]
DV33
URST
MA10
DQ20
C115
0.1u
C109
0.1u
+
C95 10u
DQ10
(4)
MA9
VSYNC#
RESET#
R58 10
PCON
GND
AD6
CS#
DMSO
C108
0.1u
RST#
A11
TxD
MA2
DV33
IR
MA1
+
C80
47u
ASPDIF
MA8
V2P8
SCL
TROPEN[ 2 ]
Y6
PWR#
DQ[0..31]
Y7
FMSO
V25
MICD
(4,5)
A14
FEO
TRSO
RESET#
(5)
1369P3_1
A13
VSDA
ASDAT[0..2]
C92
330p
DV33
VSDA
V1P4
27MHZ
Servo schematic circuit 2

10
A[0..19]
R#
A14
DMA9
DQM[0..3]
RDQ21
+5VP
Y[0..7]
PWR#
DCS#
RDQ13
Q10
9012(open)
Y7
DWE#
MA0
DMA0
C121
0.1UF
27MHZ
A4
RDQ6
RDQM0
DQ24
C124
470pF
V33
Sy
DMA7
RDQM1
U7
(open)
1
2
4
12
5
7
9
8
10
46
11
13
15
16
17
18
19
35
22
23
24
25
26
14
41
29
30
31
32
33
34
36
37
38
39
40
43
42
44
52
45
47
49
48
50
51
53
54
20
21
3
6
27
28
VCC
DQ0
DQ1
VSSQ
DQ2
DQ3
VCCQ
DQ4
DQ5
VSSQ
DQ6
DQ7
DQML
WE
CAS
RAS
CS
A11
A10/AP
A0
A1
A2
A3
VCC
VSS
A4
A5
A6
A7
A8
A9
NC
CKE
CLK
DQMH
NC
VCCQ
DQ8
DQ9
VSSQ
DQ10
DQ11
VCCQ
DQ12
DQ13
DQ14
DQ15
VSS
BA0/A13
BA1/A12
VCCQ
VSSQ
VCC
VSS
(3,5)
+5VP
27MHZ
RDQM1
RDQ28
R80
BAT85
(1,2,3,5)
PWR#
DMA10
C158
0.1u
DWE#
DQ7
Y6
DMA4MA4
RDQ14
R82
BAT85
RDQ3
DMA9
MA8
DMA5
DMA1
RDQ0
DMA6
DWE#
RDQ29
RDQ17
MA[0..11]
RDQ2
RDQ25
DRAS#
DQ13
DQ9
R68
4K(1%)
C131
470pF
R62
680R
C120
0.1UF
RST#
VSYNC#
RDQ22
C149
0.1u
C143
10uf/16v
(3)
DQM2
C139
470pF
RDQ16
SD33
DMA2
RDQ9
CVBS#
DCS#
DMA11
A[0..19]
(3)
DMA1
DBA1
RESET# RESET#
DMA9
DCLK
MA5
AD[0..7]
Q7
9012(open)
(3)
V33
RDQ5
MA3
Pr/B
C137
470pF
R71
BAT85
RDQ11
DCAS#
SD33
HSYNC#
C#
C125
470pF
Y3
DMA2
RDQ12
A11
A8
DQM0 RDQM0
+C145
47u
C118
0.1UF
C129 22pF
A9
RDQ20
RDQ15
RESET#
DCKE
C134
470pF
CS#
DQ26
RDQM3
Q12
9012(open)
(1,2,3,5,6)
(3)
+5VP
Pb/R
DV33
RDQ31
RAS#
C138 22pF
C136
470pF
L11 2.2uH
RDQ16
SCL
RDQ12
PCE#
DCKE
RDQ5
+5VP
DMA8
RDQ0
RDQ9
+5VP
AD7
BA[0..1]
MA1
PRD#
RDQ26
RDQ9
A16
DQ10
C152
0.1u
R81
75R
PRD#
WE#
CAS#
RDQ5
RDQ27
DV33
U8
1
2
3
4
5
6
7
8
9
10
11
12
1314
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
VCC
DQ0
DQ1
VSSQ
DQ2
DQ3
VCCQ
DQ4
DQ5
VSSQ
DQ6
DQ7
VCCQDQML
WE
CAS
RAS
CS
BA/A11
A10
A0
A1
A2
A3
VCC
VSS
A4
A5
A6
A7
A8
A9
NC
CKE
CLK
DQMH
NC
VCCQ
DQ8
DQ9
VSSQ
DQ10
DQ11
VCCQ
DQ12
DQ13
VSSQ
DQ14
DQ15
VSS
HSYNC#
DMA0
RDQ19
Q8
9012(open)
(3)
AD6
DQ0 DMA4
MA7
C133
470pF
C154
0.1u
C140
0.1uF
C155
0.1u
AD0
R72
75R
CVBS
AD2
RDQ1
R64 33
R86
BAT85
Y0
RDQ20
DMA4
DQ25
DQ6
SDCLK
C#
A12
DRAS#
DQ3
SCL
DMA5
R70
BAT85
CVBS#
DMA5
SDCKE
MA9
CVBS
SD33
SDA
Pr/B
DQ19
C127
470pF
SD33
DQ[0..31]
RDQ14
C142
0.1UF
(3)
PWR#
A5
DQ28
DQ18
SD33
L8 2.2uH
R84
75R
(3)
VSYNC#
C150
0.1u
Q11
9012(open)
RDQ4
DQ17 RDQ17
RDQ26
DQ31
RDQ10
C148
0.1u
R63
4.7K
C159
0.1u
R77
BAT85
C117
47UF
(3)
PCE#
27MHZ
RDQ30
DRAS#
DQ15
Pb/R
L7 2.2uH
C122
470pF
CS#
DMA10
CAS#
Y/G
G#
A7
DMA2
RDQ1
R78
75R
RDQ15
MA6
RDQ8
+5VP
Y[0..7]
B#
DMA3
DMA7
Y/G
+C146
47u
(3)
RDQ27
RDQ19
SCL
DMA8
DMA3
(3)(3)
HSYNC#
SDCKE
RDQ14
RDQM2
RDQ24
RDQ7
RDQ6
DMA2
Sy
C144
0.1u
Y#
DBA0
RDQM2
CAS#
DQ21
RDQ23
AD5
DMA8
SDCKE
GNDV
+5VP
A1
DBA0
+5VP
A10
PCE#
MA10
Y5
RST#
PRD#
Sy
RDQ18
DBA0
C126 22pF
R69
75R
(1)
Y[0..7]
RDQ6
DMA5
DQM1
RDQ28
RDQ13
R75
75R
C130
470pF
WE#
BA[0..1]
DQ22
BA1
RDQ2
AD[0..7]
C123 22pF
A19
L12 2.2uH
VSYNC#
RDQ3
MA2
C157
0.1u
U6
24C01A
1
2
3
45
6
7
8S0
S1
S2
GNDSDA
SCL
WC
VCC
DMA4
WE#
L9 2.2uH
MA[0..11]
DQ12
DMA7
Sc
DMA3 RDQM0
RN1 33x4
12
34
56
78
DQ29
L13
FB / 0805
R74
BAT85
Y#
RDQ11
A13
C119
0.1UF
(3)
(3)
SD33
DMA3
RDQ4
DQ11
+5VP
Y/G
SDCKE
DMA9
RDQ30
SDA
C151
0.1u
SCL
RAS#
Y4
RDQ1
DCKE
MA11
DMA11
DCLK
AD4
DCLK
Pb/R
RDQ13
RDQ15
R76
BAT85
SD33
RDQM3
+5VP
A15
RDQ3
A18
(3)
(3)
A17
DRAS#
L10 2.2uH
Pr/B
RDQ10
DCAS#
DMA10
RDQ0
DQ1
DQ14
DQM3
R85
BAT85
AD1
DWE#
RDQM1
DMA0
RDQ18
U9
1
2
3
4
5
6
7
8
9
10
11
12
1314
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
VCC
DQ0
DQ1
VSSQ
DQ2
DQ3
VCCQ
DQ4
DQ5
VSSQ
DQ6
DQ7
VCCQDQML
WE
CAS
RAS
CS
BA/A11
A10
A0
A1
A2
A3
VCC
VSS
A4
A5
A6
A7
A8
A9
NC
CKE
CLK
DQMH
NC
VCCQ
DQ8
DQ9
VSSQ
DQ10
DQ11
VCCQ
DQ12
DQ13
VSSQ
DQ14
DQ15
VSS
A0
DMA8
(3,5)
SD33
DQM[0..3]
DQ23
DQ16
DV33
RDQ22
A3
A2
C162
0.1UF
R83
BAT85
R61
680R
(3)
CVBS
L14
FB AXIAL
Y1
DQ20
C156
0.1u
DBA1
DQ4
DQ8
RAS#
DBA0
RDQ7
RDQ12
BA0
R66 10 OHM
(3)
DV33
SDCLK
RDQ25
DMA6
RDQ11
Sc
RDQ24
RDQ8
DMA6
RDQ10
R79
BAT85
R67 10 OHM
SD33
RDQ8
DMA10
R73
BAT85
DCS#
C128
470pF
G#
DCAS#
DQ2
Q9
9012(open)
(3)
Sc
DCAS#
DQ30
(3)
+5VP
SDCLK
DQ5
DMA1
C160
0.1u
SDA RDQ21
RDQ29
AD3
U10
CS4954
29
34
1
2
3
4
5
6
7
8
26
25
24
23
22
21
20
19
27
28
30
31
32
33
13
17
36
41
46
38
9
10
11
44
48
47
39
40
43
37
18
35
42
45
12
14
15
16
CLOCK
RESET
V0
V1
V2
V3
V4
V5
V6
V7
PDAT0
PDAT1
PDAT2
PDAT3
PDAT4
PDAT5
PDAT6
PDAT7
RD
WR
TTXDAT
TTXRQ
SDA
SCL
TEST
VDD
VAA
VAA
VAA
VREF
FIELD/CB
HSYNC/CB
VSYNC
CVBS
Y
C
RED
GREEN
BLUE
ISET
GNDD
GNDA
GNDA
GNDA
INT
XTALOUT
XTALIN
PADDR
C132 22pF
DCS#
SDA
RDQ2
DQ[0..31]
DQ27
RDQ31
Y2
B#
GND
C153
0.1u
C135 22pF
EEPROM
DMA0
CS#
DMA7
SD33
R#
RDQ7
V33
A6
RDQ4
DMA1
DMA6
RDQ23
SDCLK
R65 33
U5
AM29F400BT-120SC/800BT-120SC
11
10
9
8
7
6
5
4
42
14
33
2
15
17
19
21
41
12
24
26
28
30
16
18
22
25
27
29
31
23
1343
1
20
32
40
38
39
37
36
35
34
3
44
A0
A1
A2
A3
A4
A5
A6
A7
A8
OE
BYTE
RY/BY/A18
D0
D1
D2
D3
A9
CE
D4
D5
D6
D7
D8
D9
D11
D12
D13
D14
D15
VCC
GND1WE
NC / RD/BY
D10
GND2
A10
A12
A11
A13
A14
A15
A16
A17
RESET
Decoder schematic circuit 1
SDRAM
SDRAM
SDRAM

11
MUTE
RN2 33Rx4
18
27
36
45
VCCA
MIC/HL
MUTE
+
C211
220uF/16v
VA+1
ALCK
+
C210
100uF/16v(OPEN)
MC
-24V
MAINL
R1
C191 10uf/16v
C207
10uF/16V
VA-1
VA-1
R109
0R
+5VP
Sy
VCCA
C171
1500pF
R140
10K
MAINR
R112
10K
VA+1
R115
10K(open)
L1
VCC
CVBS
+3.3V
F-
R152
OPEN(10K)
R118
10K
Sc
C176
150pF
R133
0R
R142 0R
+5V
R150
220R
V25
ACLK
C203
10uF/16V
+
-
U14B
4558
5
6
7
84
C198
0.1u
C185
10uF/16V(short)
VA+
R101
10K
R155 OPEN(0R)
R132
OPEN(100R)
R147
3.3K
R138
0R
MUTE
C186
OPEN
R153 OPEN(0R)
VA+
F+
MAINR
R103
18K
VA-1
R128
0R
ASDAT[0..2]
ASDT2
Q20
OPEN
VCC
ML
R143
1K
DV33
Q16
9014C
R119
3.3K
VA-1
VA+
VA+1
R91
18K
D3
1N4148
VA+1
R
L1
FB AXIAL(OPEN)
Q22
OPEN
R93
0R
Y/G
+
-
U13A
4558
3
2
1
84
R157
10K(open)
MODE
Ls_OUT
VSCK
Q17
OPEN(9015C)
C197
0.1u
HSYNC#
LS
MUTE
LFE_OUT
R120
20K
R137
100K
R110
10K(open)
CN1
CON12(2.5mm)
1
2
3
4
5
6
7
8
9
10
11
12
C169
10uF/16V(short)
R114
18K
CVBS
VCCA
R165
0R(open)
R126
20K
U11
WM8746
1
11
12
13
14
9
8
10
2
3
4
5
6
7
15
28
20
24
26
22
18
27
25
23
21
19
17
16
DVDD
DGND
LATCH/12S
SCLK/IWL
SDIN/DM0
MUTE
MODE
LRCLK2
MCLK
BCLK
LRCLK
DIN0
DIN1
DIN2
AVDD1
AVDD2
AGND1
AGND2
GR0
GR1
GR2
OUT0R
OUT0L
OUT1R
OUT1L
OUT2R
OUT2L
CAP
Q23
OPEN
MUTE
+5VP
ML
D5
1N4148
VSDA
+
-
U12B
4558
5
6
7
84
PMUTE
SL
Sy
MIC1
MD
C183
1500pF
Q13 8050
C168
150pF
R172 OPEN
C201
0.1uF
R113
3.3K
VCC5
VA+
SR
R97
10K(open)
CENT
MIC
D6
OPEN(1N4148)
MC
R135
100K
R131 33R
VA-
+5VP
+5V
R141
0R(OPEN)
R122
0R
MIC1
CN
MD
R173 OPEN
Q21
OPEN
R96
0R(OPEN)
R148 10k
VSYNC#
C193
0.1uF
R130 33R
L2
FB AXIALVA+1
ASDT1
C164
150pF
VSDA
VSCK
C_OUT
R146
3.3K
1369P3_1
SR
VCC
R100
2.2K
L4 FERB(0805)
VA-1
LS
R104
10K
R139
0R(OPEN)
ASDAT[0..2]
R1
VCC
ASDT0
+
C209
10uF/16v
ABCK
ASDT1
C188 10uf/16v
VSCK
R127
10K(open)
R162
10K(open)
R121
10k(open)
R154 0R
VA-
Sc
VA-
SUB
R145
10K
VA-1
R124
10K
MICD/HR
R125
3.3K
C179
1500pF
C190 10uf/16v
R161
0R
SUB
C184
150pF
C205
0.1uF
R144
0R(open)
C166
OPEN
+
C212
220uF/16v
R106
10K
ABCK
R89
10K
PCON
C174
OPEN
C187 10uf/16v
+
C208
470uF/10v
L5 FERB(0805)
ML
R116
0R
Q15
OPEN
ASPDIF
MUTE
MAINL
+
C199
100uF/16v(open)
+5V
ACLK
R95
OPEN
Q14
OPEN
R134
OPEN(0R)
CENT
ALRCK
C204
0.1uF
C182
OPEN
ABCK
R99
10K
R164
10K
C170
OPEN
VCCA
R136
10K
L
MD
R105
OPEN
C194
10uf/16v
C175
1500pF
ACLK
CN
MC
R117
OPEN
R149
10K(open_)
VA+1
CN3
6PIN*2.5
1
2
3
4
5
6
MUTE
R90
3.3K
CN2
con20(1.25)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
SW
MUTE
L1
C163
1500pF
ABCK
SL
MODE
C214
0.1u
VA+1
ALRCK
VA-1
+5V
VA+1
Rs_OUT
Q18
9015C
+
-
U14A
4558
3
2
1
84
C167
1500pF
R98
0R
VA+1
MIC
ASDT0
MC
R92
10K(open)
ML
+
C213
100uF/16v
R108
3.3K
Q26
OPEN(9015C)
Pr/B
L
R
L6
2.2R
RS
C173
10uF/16V(short)
+
-
U13B
4558
5
6
7
84
C192 10uf/16v
R129
OPEN
C178
OPEN
R102
3.3K
VCCA
C165
10uF/16V(short)
L3
FB AXIAL
+
C195
100uF/16v
ALRCK
VA-1
MICD
CN11
CON9*2.0(open)
1
2
3
4
5
6
7
8
9
R111
OPEN
SWASDT2
C200
0.1uF
C189 10uf/16v
R171
0R
C196
0.1u
R107
18K
Q19
9015C
Pb/R
C180
150pF
R151
OPEN(10K)
R174
OPEN
U15
OPEN(78L05)
2
13
R123
OPEN
C177
10uF/16V(short)
C181
10uF/16V(short)
VA-1
RS
+5V VA+1
VSDA
C172
150pF
+
-
U12A
4558
3
2
1
84
R156 0R
R163
0R
VA-1
ALRCK
C206
0.1uF
C202
0.1uF
R94
0R(OPEN)
Decoder schematic circuit 2
Audio D/A

12
Front control board schematic circuit (HV-2000)
/CSTB
SG14
R307
100
SG31
COM3
R316 100
C306
47P
R314 100
IR
S G 2 1
9
S G 7
SG29
STB+5V
SG11 SG40
SG22
D301 STANDBY
NOTE_ST
GND
NOTE_ST
STB+5V
K307
SG12
SG3
C305
47P
SG22
1
SG5
SG10
SG34
C302
104
REM301
REM
1
2
3
IR
GND
VCC
SG10
R310
10K
COM1
SG33
R30410K
SG32
SG28
SG37
LCD
LCD301
1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 3
23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44
SG2
2
SG20
C311
680PF
R318
51K
COM3
SG11
SG5
R30210K
4
SG4
SG18
D303
1N4148
K304
SG13
SG18
SG36
C310
104
SG38
CON302
SERI AL/ UP/ 4P, 2. 0m/ m
4
3
2
1
SG1
SG34
SG31
R313 100
6
SG15
SG25
SG39 SG14
SG6
SG27
SG12
SG24
COM2
R320
56K
R321
470R
R317
51k
COM4
SG21
D302
1N4148
SG28
K305
U301
PT6554
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
SG1/P1
SG2/P2
SG3/P3
SG4/P4
SG5
SG6
SG7
SG8
SG9
SG10
SG11
SG12
SG13
SG14
SG15
SG16
SG17 SG18 SG19 SG20 SG21 SG22 SG23 SG24 SG25 SG26 SG27 SG28 SG29 SG30 SG31 SG32
SG33
SG34
SG35
SG36
SG37
SG38
SG39
COM1
COM2
COM3
COM4
SG40/KS1
SG41/KS2
KS3
KS4
KS5
KS6 KI1 KI2 KI3 KI4 KI5 TEST VDD VDD1 VDD2 VSS OSC DO CE CLK DI
SG40
7
K302
DO
C304
47P
DI
SG6 SG9
SG36
standby
D304
1N4148
CLK
SG17
R315 100
C308
104
SG2
SG25
R312
10K
SG23
SG7
SG30
SG26
SG8 SG4
SG32
K303
SG16
SG24
SG9
R319
51k
SG1
R306
10K
SG15
+
C301
47uF/10v
8
COM[1..4]
S G 2 9 S G 3 7
LP301
LAMP
COM1
SG8
SG30
R30510K
C309
104
SG19
SG13
R308
10K
+
C307
47uF/10v
CON301
9pin-2.0mm
3
SG3
SG[1..40]
R309
10K
CON303
SERI AL/ UP/ 4P, 2. 0m/ m
1
2
3
4
SG26
SG35
SG39 SG38
SG19
K306
R30310K
5
SG20
SG35
COM4
SG23
SG17
K301
R301
10K
SG16
COM2
SG[1..40]
C303
47P
SG27
SG33

13
D302
1N4148
C301
104
IR1
R309 10K
+5VP
GND
PCON
C306
104
IR1
J1 SHORT
DATA
R320
4.7K
R315
4.7k OHM(SHORT)
VCCA
D306
1N4148
K301
PRV
Q301
SHORT C-B)
R316
10K
C313
47P
POWOFF
R310 10K
+
C311
10uF
R303 100 ohm
D303
1N4148
CON301
CON13(2.0)
1
2
3
4
5
6
7
8
9
10
11
12
13
K306
OPEN/CLOSE
R305
10K
+
C315
47uF
VCCA
IR
R324
10K(OPEN)
K305
PLAY
U302
PIC16C54S
1
2
3
4
5
6
7
8
910
11
12
13
14
15
16
17
18
RA2
RA3
T0CKI
/MCLR
Vss
RB0
RB1
RB2
RB3 RB4
RB5
RB6
RB7
Vdd
OSC2
OSC1
RA0
RA1
VCCA
-24V
+5VP
VCCA
NOTE-STDBY
AC1
C308
104
AC1
NOTE-STDBY
-24V
P_MUTE
R301 100 ohm
R317
4.7K
U301
PT16312
1 2 3 4 5 6 7 8 9 10 11
12
13
14
15
16
17
18
19
20
21
22
23 24 25 26 27 28 29 30 31 32 33
34
35
36
37
38
39
40
41
42
43
44
SW1 SW2 SW3 SW4 SDout SDin GND SCLK /CS KEY1 KEY2
KEY3
KEY4
VDD
SEG1/K1
SEG2/K2
SEG3/K3
SEG4/K4
SEG5/K5
SEG6/K6
SEG7
SEG8
SEG9
SEG10 SEG11 SEG12
VEE
SEG13 SEG14 SEG15 SEG16
G6 G5
G4
G3
G2
G1
VDD
LED4
LED3
LED2
LED1
GND
OSC
CS
R312
10K
K302
NEXT
R318
4.7K
AC2
+
C310
47uF
R323
10K(OPEN)
AC2
D301
1N4148
LED
VCCA
+5VP
K303
PAUSE
R304
10K
GND
R308
51K
VCCA
CLK
R313
470
PCON
DATA
+5VP
K304
STOP R311 10K
Y1
4MHz
R307
100 ohm
IR
C302
104
R319
4.7K
POWOFF
P_MUTE
D304
STANDBY
VFD301
HNV-06SS63T
1 2 3 4 5 6 7 9 8 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 29 28 30 31 32 33 34 35
F1 F1 NP 6G 5G 4G 3G 2G NC 1G NC P1 P2 P3 P4 NC NC P5 P6 P7 P8 NC NC P9 P10 P11 P12 P13 NC P14 P15 P16 NP F2 F2
IR
Q302
SHORT C-B)
C314
47P
R306
10K
REM301
REM
1
2
3
IR
GND
VCC C309
104
CLK
R302 100 ohm
C312
47P
R326
4.7K
CS
-24V
Front control board schematic circuit (HV-2100)
9014C(
9014C(

14
C3
100UF/25V
R31
8.2K
+
-
U2A
4558
3
2
1
84
GND
C21
332
C15
332
C6
104
C12
1UF/16V
C10
101
R24
100
VAM+
C5
100UF/25V
MIN
D1
IN4148
C11
1UF/16V
C28
100UF/16V
R10
10K
R17
13K
R2
1.2K
RP1
10K
C2
22UF/16V
M-DET
C4
104
C27
47UF/16V
R21
1.5K
C23
683
MIN
V2
9015 VCC
C26
104
R8
15K
VAM-
R3
47K
C18
4.7UF/50V
R16
1K
R12
5.1K
VCC
R15
15K
R1
2.2K
R27
47K
VCC
C29
104
+
-
U2B
4558
5
6
7
84
C16
561
C13
4.7UF/16V
C14
4.7UF/50V
C17
4.7UF/50V
C20
561
C19
OPEN/103
M-DET
6*2.5
JP1
1
2
3
4
5
6
VAM+
R7
15K
R9
10K
R11
12k
C8
104
C7
101
C1
104
C30
SHORT/1UF
R28
10K
R20
15K
U1
PT2399
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
VCC REF AGND DGND CLK-O VCO CC1 CC0
OP1-OUT
OP1-IN OP2-IN
OP2-OUT
LPF2-IN
LPF2-OUT LPF1-OUT
LPF1-IN
R6
1K
R5
2.2K
RP2
10K
R23
150K
MIC2
1
2
3
1
2
3
V1
9014
1
23
VAM-
R25
3K3
C25
104
C22
683
MIC1
1
2
3
1
2
3
R30
10K
R14
10K
R19
1 M
C24
4.7UF/50V C9
22UF/16V
R22
10K
R18
10K
R26
47K
R13
10K
Karaoke schematic circuit

MUTE
Y/G
R14
470R
SPDIF
RS1
Cb/B
CE
Q3
9014C
Q5
9014C
Y/G
Cr/B
MUTE
R10
330R
FR
R8
68 OHM
Q2
9014C
R20
470R
R21 470R
OPT
1
2
3
R1 0
+
C1
47uF/16v
L1
AXIAL
FL1
MUTE
C11
100P
CE1
GND
VFMT
LS
Svideo_Y
R28
10K
FR1
+
C14
10uF/16v
VS
GND
SV/V
CON7
1
2
3
4
5
6
7
HS
C4
104
CVBS
RS
Svideo_Y
+
C12
10uF/16v
RS
+
C13
10uF/16v
C8
100P
AUDIO
CON12
1
2
3
4
5
6
7
8
9
10
11
12
C3
0.1UF
CE
LS1
HS
GND
Q1
9014C
+5V
R19
470R
FL
R26
10K
R3
OPEN(33ohm)
GND
FL1
VIDEO OUT
Y/G
VS
Svideo_C
MUTE
R24
10K
+
C15
10uF/16v
CE1
+
C17
10uF/16v
VMODE
MIXR
R2 0
PSCAN
C0N9(2.0)
1
2
3
4
5
6
R18
470R
FL
Cr/R
MIXL
R12
470R
SUB1
RS
Cb/R
R22
470R
HS
SUB1
R7
1K
R13
470R
Cr/B
C5
OPEN 220P
CN101
con20(1.25)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
MUTE
R15
470R
R29
10K
CN3
CON8(8*2.0)
1
2
3
4
5
6
7
8
+12V
SPDIF
R5
1K
R4
OPEN(33ohm)
FR
+
C16
10uF/16v
FL
Q6
9014C
LS
CE
R17
470R
COAX
1
2
3
R6
2.2K
Q7
9014C
C2
0.1UF
VS
R9
330 OHM
R16
470R
SUB
+5V
5.1CH
CN2
1
2
5
6
3
4
8
9
7
10
FR1
LS
LS1
+5V
SUB
Cb/R
R27
10K
GND
FR
C10
100P
CVBS
R23
470R
R11
91 OHM
VGA(open)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Q4
9014C
C7
100P
SUB
RS1
MUTE
Svideo_C
L2
1000
C6
100P
MUTE
C9
100P
R25
10K
15 Output schematic circuit
AUDIO PSCAN OUT
SHORT

16
Power schematic circuit
D410
FR104
L403
3.3uH
FUSE401
T1.6A/250ac
R418
22k
C424
0.1uF
D408-NU
FR104TR401
NTC10R
C404
103/1kV R428
2.2
R420
2.2k
D407
BZX79C16V
+
C422
100uF/25V
D402
1N4007
CON401
AINCP U T
12
++
D412
FR104
+
C428
1000uF/16V
D417
RU3YX
R401
100K/2W
R405
11/4W
R426-NU
2.2
R424-NU
2.2
R407
75k
R427
21 . / 24 MW
D401
1N4007
U403
TL431
2
1
3
+
C425-NU
10uF/50V
C401
0.1uF/250Vac
C421
0.1uF
L405
10uH
R419
470
+
C420
100uF/25V
+
C426
470uF/16V
L401
38mH
U402
PC817
12 43
C427
0.1uF
D406
FR104
CON402
POWERSW
12
++
R411-NU
51k
R423
1k
+C429
100uF/16V
D413-NU
FR104
+C412-NU
100uF/16V
R414-NU
11.%8K
Q402
2SA817A
R422
1k
U401
TEA1523P
4
5
1
2
8
3
6
REG
AUX
VCC
GND
Drai n
RC
Source
+
C417
100uF/16V
L404
3.3uH
Lp=960uH
C410
102/250Vac
C406
0.1uF
D411
FR104
C411
223 R425
11 0W0
D409
RU3YX
R415
22k
L402
10uH
Q403
2N5551
R413-NU
11.%1K
D414
RU4YX
R408
100
C414
0.1uF
R409
470
Q401
8050
Q404
2N3904
+
C407
10uF/50V
C431
470p
C430
0.027/400V
D405
1H8
D416
RU3YX
R402
10k
R404
56k
T401
BCK-2838
18
15
11
10
3
16
4
6
8
17
14
12
2
7
13
C402
0.1uF/250Vac
R412
31 3W0
C405
22p
+
C418
1uF/100V
R403
6k8
+
C423
100uF/25V
D404
1N4007
R406
11/4W
+C413
1000uF/16V
R417
2.2k
R416
470
C416
0.1uF
U404-NU
AMS2910
23
1
VOIN
GND
R430
2.2
RV401
300V
R421
10K
C408
102/250Vac
+
C415
470uF/16V
D403
1N4007
R429
2.2
R410-NU
1K
C409
102/250Vac
+
C403
47uF/400V
D415
FR104
+C419
100uF/25V
CN401
HEADER13
1
2
3
4
5
6
7
8
9
10
11
12
13
VM
GND
3.3V
GND
5V
VA+
VA-
GND
PCON
5VSTB
AC1
AC2
-24V