JVC THV-70 Service manual
SCHEMATIC DIAGRAMS
DVD DIGITAL CINEMA SYSTEM
TH-V70
TH-V70
SP-PWV70
CD-ROM No.SML200207
Area suffix
A ------------------------- Australia
US ---------------------- Singapore
UB --------------------- Hong Kong
UX ------------------- Saudi Arabia
SP-XSV70SP-XSV70
SP-XCV70 SP-XSV70SP-XSV70
TV AUDIO
DVD
AUX
FM/AM
AUDIO
ANGLE
SUBTITLE
RETURN DIGEST ZOOM VFP
+
TOP MENU MENU ZOOM
–
CONTROL– SUBWOOFER +EFFECT
VCR
123
–
CENTER
TV
456
SLEEP
–
REAR-L
789
SETTING
REAR-R
–
10
0
TV RETURN
FM MODE
ON
SCREEN
ENTER
CHOICE
CHANNEL VOLUMETV VOL
TV/VIDEO MUTING
/REW
PLAY
TUNING
DOWN UP
STOP
REC
MEMORY
DIMMER
RM–STHV70U
DVD CINEMA SYSTEM
VCR 1
VCR
DECODE
PROGRESSIVE
SOUND
+
TEST
+
+
+10
100+
AUDIO/
TV/VCR
CATV/DBS
SURROUND
MODE
FF/
PAUSE
STROBE
XV-THV70
Contents
Block diagrams
Standard schematic diagrams
Printed circuit boards
COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.
2-1
2-9
2-21 26
No.21136SCH
Jul. 2002
TH-V70
In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the
parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " "
mark nearby are critical for safety.
(This regulation does not correspond to J and C version.)
2-2
Block diagrams
<Main body section>
Overall block diagram
5
D TERMINAL
J591
AV COMPULINK2
J592
J1103
68
7
453
2 1
L
J1101
AUX IN
SYSTEM
CONNECTOR
TH-V70
R
6CH
IC153
VOLUME
SDRAM
CN802
DSP
IC403
CN401
IC108
DOOR MOTOR
IC406
DRIVER
DSP/Audio board
LVA10309-A1
MICOM
SYSTEM
IC404
Japan version only
4
3
Cr
LVA10308-A1
Main board
J603
COMPONENT
VIDEO OUT
Cb
2
Y
IC601
IC509
C
VIDEO
ROM
FLASH
IC505
DRAM
J601
S-VIDEO OUT
Y
DRIVER
CN803
CN502
J601
IC501
PANTERA-2
COMPOSITE VIDEO OUT
LVA10308-A3
Compulink board
CN503
CN591
CN811
CN801
CN592
CN815
CN972
FROM/TO
TUNER UNIT
CN805 CN806
IC801
DSP
CN813
W812
CN814
CN106
MICOM
IC151
INPUT
IC401
W801
CN812
W802
SELECT
CODEC
Key
switch
IC871
REMOCON
LED
DISC
DOOR
DETECT
DOOR
MOTOR
LVA10308-A2
LVA10308-A5
SWITCH
LVA10308-A4
D5V,DVD 5V
DVD3.3V
P.ON,B5V
CN101
DVD servo board
LVA10311-A1
IC451
EEPROM
IC101
IC401
FRONT END
PROCESSOR
CN201
UNIT CPU
IC201
DRIVER
IC301
CN202
SODC
IC251
MOTOR
DRIVER
SPINDLE
P901
+12V,-12V
REG.
DOOR M9V
T901
Trans.
AC IN
Fan
motor
Front board
B5V
F1,F2
-VDISP
LVA10320-A1
CN701
IC701
DISPLAY
IC711
REMOCON
MICOM
DI701
FL DISPLAY
1
EXL-V9-1
DVD traverse
mechanism
EXL-V9-1
DVD traverse
mechanism
AB C
FLM-FD1-1
DVD loader
mechanism
2-1
TH-V70
5
4
3
2
System control section
TUR
TUL
RDS
TUCK
TUCE
FLINT
CN805
CN801
CN106
CN802
LVA10308-A1
8
6
10
4
3
2
1
14
1
16
17
18
19
21
23
25
7
3
DRIVER
IC108
MOTOR
1
2
8
9
10
11
12
LVA10308-A5
IC871
REMOCON
D8721
D8722
DISC LED
LED board
LVA10308-A4
S551
DOOR DETECT
SWITCH
Open/Close board
IC191
RDS DECODER
X191
OSC
4.322MHz
70,72-74
5,21-26
1,9
56,57
1
2
5
2
3
FROM/TO
TUNER UNIT
B/E/EN
version
TUDTO
TUDTI
FROM/TO
CN503 OF
LVA10311-A1
(DVD servo)
SPDIF
SWPHOTO
DISKSTP
SSPCLK1B
SSPOUT1B
SSPIN1A
FLCS-
CPURST
TO
Door motor
FROM/TO
CN701 OF
LVA10320-A1
(FL display)
RESET
CLOCK
DATA IN
INITIAL
REMOCON
83
18,20
91,92
W812CN812
CN814W802
FROM/TO
CN401 OF
LVA10309-A1
(DSP)
TUNER R
22
TUNER L
21
SMUTE
28
IEC958
5
SW P.ON
27
AUX
29
TUNER
30
OUT L
24
OUT R
26
VOL_CK
14
VOL_DT
13
VOL_STB
12
DSPCLK
11
DSPSTATUS
10
DSPCOMMAND
9
DSPREADY
8
DSPRESET
7
D5V
2
D5V
1
8,9,1016
27
50
SMUTE
29
67,68
85
76
IC801
SYSTEM MICOM
79,80
8,9
4,48 59 62,64
Q802
Q805
89
90
30
Q804
Q807
SW P.ON
13
33 4
34,35
42-47
2
Main board
CN806
X801
OSC
8MHz
IC803
RESET
36
Q816
Japan version
AUDIO_R
AUDIO_L
Q8712
Q8713
LED
CTL
Q8711
1
REM +B
2
CTL
5
2
3
Q818
BACKUP
Q803
SAFETY
DETECT
AVVLR
RGB/NTB
D5V
P. O N
DVD P.ON
B5V
+12V
-12V
TO
Audio I/O
TO
Video I/O
TO
Power supply
2-2
LVA10308-A2
S501-S510
Key switch
CN813W801
2
2
3
3
Switch board
1
AB CD
TH-V70
Audio input/output section
LVA10309-A1
LOUT1
ROUT1
5
LOUT2
ROUT2
LOUT3
ROUT3
FROM/TO
DSP
MUTE
4
VOL_STB
VOL_DT
VOL_CK
A5V
IC531
Amp.
IC561
Amp.
IC581
Amp.
Q2501
Q2502
Mute control
Q2521
Mute control
Q2561
Mute control
Q2581
Mute control
15
13
9
IC153
8
6CH
VOLUME
11
6
39 40 41
INPUT SELECT
LIN+
LIN–
RIN+
IC510,511
Amp.
RIN–
L
J1101
AUX
IN
3
R
2
1
4
3
8
9
10
11
IC151
31
32
Q1131
Mute control
34
35
Q1133
Mute control
33
36
Q1135
Q1137
Mute control
13
5
6
12
IC158
Amp.
IC159
Amp.
IC160
Amp.
Mute control
Q1252
Q1252
Mute control
Mute control
Q1251
Q1252
Mute control
J1103
SYSTEM
CONNECTOR
7
68
453
2 1
FROM/TO
CN806 OF
LVA10308-A1
(System control)
CN401
5
SW.P.ON
4
S MUTE
8
OUT_L
6
OUT_R
12
A5V
10
TUNERR
11
TUNERL
3
AUX
2
TUNER
DSP section
LVA10309-A1
CN401
IEC958
D5V
D5V
21
22
23
24
IC408
27
IC409
Digital
input
IC410
Digital
output
31
30
20
19
18
34
IC403
DSP
31
IC404
SDRAM
71
IC407
D3V
54
IC402
A3V
VDD
VDDA
99
24.576MHZ
1,3-7
83,85-89
84
X401
OSC
46-50,53
16,18-20,22
DSPCLK
DSPSTATUS
DSPCOMMAND
DSPREADY
2
FROM/TO
CN806 OF
LVA10308-A1
(System control)
VOL_STB
VOL_DT
VOL_CK
Q403
40,42,43
IC406
DSP MICOM
71
17
IC401
CODEC
41
37,38
94
64,66,67
41-43
11
17
21
84
88
27
28
25
26
23
24
30
29
32
31
X402
OSC
6.14MHZ
Q401
Q402
1
CN403
2
3
5
TX
RX
TEST
FROM/TO
Audio
input/output
MUTE
LOUT1
ROUT1
LOUT2
ROUT2
LOUT3
ROUT3
LIN+
LINRIN+
RINA5V
VOL_STB
VOL_DT
VOL_CK
AB C
2-3
TH-V70
Video output section
LVA10308-A1
S802
VER/HOR
5
TO
System
control
RGB/NTB
AVVLR
VER/HOR
SW
U version
S691
NTSC/PAL
SW
4
CrOUT
CbOUT
FROM CN502
OF LVA10311-A1
(DVD servo)
COUT
YOUT
CN803
10
12
14
16
16
14
6
11
8
IC601
VIDEO
DRIVER
3
2
B/E/EN version
LVA10308-A3
Japan version
CN591
CN811
21
23
31
25
28
33
Pr
5
3
1
13
11975102
CN592
42
13
CN815
7
11
15
19
J591
Pb
D TERMINAL
Y
J592
AV COMPULINK2
B
G
R/C
COMPOSITE/Y
Cr
J603
COMPONENT
Cb
VIDEO OUT
Y
C
J601
S-VIDEO
OUT
Y
J601
COMPOSITE
VIDEO OUT
B/E/EN version
J691
SCART
TERMINAL
Except
B/E/EN version
FL display section
LVA10320-A1
27
29
39
28
30
40
Q710
Q712
Q721
DIMMER
Q711
Q713
Q722,Q723
DIMMER
FROM/TO
CN802 OF
LVA10308-A1
(System control)
2
REMOCON
CN701
12
INITIAL
DATA IN
CLOCK
11
10
RESET
-VDISP
9
8
-12V
7
D5V D5V
6
B5V
5
3
F2
2
F1
1
-12V
B5V
1
IC711
Remocon
receiver
Q709
OSC
X701
8MHz
1, 2
61. 62
2,3,5,26
100
9,10
31
IC701
DISPLAY MICOM
DI701
FL DISPLAY
G1-G14
P1-P35
D701
POWER LED
HORIZONTAL
D711
POWER LED
VERTICAL
D702-D710
KEY LED
HORIZONTAL
D712-D720
KEY LED
VERTICAL
2-4
AB CD
Power supply section
TO CN701 OF
LVA10320-A1
(FL display)
TO CN503 OF
LVA10311-A1
(DVD servo)
TO CN502 OF
LVA10311-A1
(DVD servo)
TO CN401 OF
LVA10309-A1
(DSP)
TH-V70
F2
F1
-VDISP6D5V
B5V15M5V
2
5
CN802
1
-12V
3
5
7
CN801
S5V
21
CN803
D5V
23
S3.3V
D3.3V
17
19
M9V
25
LVA10308-A1
Q964
4
Q953
-VDISP
31
2
4
IC953
3
Q951
FL SW
IC951
B5V REG.
1
D5V REG.
Q965
DVD5V SW
Q954,Q955
A7V
18
CN806
E.VOL
Q1181
D956
Q958
+7V
D5V
1
D5V
2
A12V
A-12V
15
16
A5V19A-7V
20
A5V
IC805
Q959
Q960
E.VOL
Q1182
D957
Q961
-7V
FAN MOTOR
1
CN972
Q957
71
8
9
13
12
T901
2
D901
L901
F901
P901
1
AC IN
3
1
IC901
SWITCH
5
4
REG.
TRANSFORMER
16
14
FROM/TO
System
P. O N
control
B5V
DVD-P.ON
A5V
DVD3.3V
DOOR M9V
AB C
2-5
TH-V70
DVD servo section
FROM/TO
CN803 OF
LVA10308-A1
(System control)
25
CN502
232119
17
161412
FROM/TO
CN801 OF
LVA10308-A1
(System control)
4
7
10
2
CN503
16
20
15
21
17
19
1
23
5
D5V
M9V
S5V
S3.3V
D3.3V
Y OUT
C OUT
Cr OUT
Cb OUT
S1OUT
TOPEN
TCLOSE
/LMMUTE
SWOPEN(SW2)
SWUPDN(SW3)
114
118
112
110
4
7
OSC
X571
27MHz
IC502
CLOCK
56
GENERATOR
79
3
98
IC512
IC501
PANTERA-2
IC505
STD0-7
6
47
Latch
IC513
16M
SDRAM
D DATA
DCLK
IC509
DAC0CS,DAC1CS
DAC2CS,BCK
LRCLK,AOUT0-3
ROM
FLASH
DISCSTP
SSPCLK1B
M5V
192K,SPDIF
LRMUTE,SMUTE
IC521-2/4
IC521-4/4
IC522-4/4
WAITDEC
LSI RST
1
23
11
SSPIN1A
DISCSET
SSPOUT1B
IC522-3/4
65
IC521-3/4
IC519
FLCS-
FLINT,SWMUTE
IC523
EEPROM
CPURST
SWPHOTO(SW1)
IC521-1/4
IC522-1/4
IC522-2/4
IC301
SODC
2
IC101
FRONT END
PROCESSOR
LD
49,50
53,54
62,63
57-60
11,12
T+/-
IC201
13,14
F+/-
DRIVER
17,18
15,16
LVA10311-A1
CN101
TO EXL-V9-1
(DVD traverse
1
mechanism)
TO EXL-V9-1
(DVD traverse
CPUD0-7
CPUA0-17
H1+/-
FM+/-
CN201
mechanism)
H2+/-
H3+/-
IC251
SPINDEL
9-14
MOTOR
DRIVER
2,4,7
SM1-3
TRVSW
IC401
UNIT CPU
50
CN202
TO FLM-FD1-1
(Loader
mechanism)
LM+/-
IC451
EEPROM
2-6
AB CD
TH-V70
7 68
4 35
2 1
31
57
IC100
GND.ISO.AMP
Mini Din CONNECTOR
J100
WOIN
FLIN
31
57
IC101
GND.ISO.AMP
FCIN
FRIN
31
57
IC102
GND.ISO.AMP
RLIN
RRIN
21
67
IC103
PHASE REVERSE
AMP
S100
PHASE SW
REVERSE
NORMAL
VR100
WOOFER GAIN
PRESET VOLUME
- 12V
+12V
P.CNT
CN101
LVA10203-A2
31
IC108
HPF
- 12V
31
57
IC109
HPF
31
57
IC110
HPF
CN201
- 12V
+12V
- 12V
+12V
PRTCT
51
IC104
LPF
IC105
WOOFER AMP
3
IN1
12
13
- OUT
+OUT
IC201, IC202
AMP
Q211
THERMAL
PROTECTOR
2
Q205,Q210
POWER
SWITCH
LVA10204-A2
Pre-amplifier board Power amplifier board (A)
LVA10204-A1
Power amplifier
& SP terminal board
CN109
RY401-RY403
4
3
J101
5
4
J102
6
RROUT
RLOUT
FCOUT
FROUT
FLOUT
IC107
MAIN AMP
16
CH3IN
18
19
CH3+VE
CH3-VE
151011
CH2IN
CH2+VE
CH2-VE
6
7
CH1+VE
CH1-VE
1
CH1IN
IC106
MAIN AMP
15
CH2IN
10
11
CH2+VE
CH2-VE
6
7
CH1+VE
CH1-VE
1
CH1IN
+12V
Q508-Q514
MUTE
CONTROL
LED1
LED2
PRY1
PRY2
Q500-Q505
POWER CONTROL
& PROTECTOR
Q515-Q517
Q522,Q523
PROTECTOR
AC IN
F403
CN108
RY400
CN107
T101
TRANS.
CN104
AC/DC
D511-D514
AC/DC
D515-D518
+40V
+20V - 20V
+12V REG
Q506,Q507
F504
MCONOUT
MCONIN
Q202
PRY2
PRY1
PRY1
PRY2
Q303
Q302
PRTCT
PRTCT
PRT
PRT
PRT
PRT
PRT
PRT
PRT
P.CNT
P.CNT
P.CNT
Q518-Q521
LOW VOLTAGE
DETECTOR
+20V
- 20V
+40V
- 40V
PRTCT
LVA10203/10204-A1
Mother board
Q304
SP-THV70 powered subwoofer section
121110
98765
1
CN202 CN102
123
CN203 CN103
876
- 40V
+12V - 12V
345
789
CN210 CN110
6
432
1
2
1
1
5
CN211 CN111
9
10
3
6
131110
6
4
CN206 CN106
8
201917
13
11
CN205 CN105
15
Q301
531
Q300
152
4
F505
152
4
1
2
1
2
1
2
<Speaker section>
LVA10204-A3
Power supply board (B)
7
3
4
3
4
S101 VOLTAGE SW.
US/UB/UX
version
5
4
3
2
1
AB C
2-7
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