JVC TH-S77 Service Manual page 29

Block diagram
<Main body section>
DVD servo section
A, B, C, D, E1+F1,E2+F2,E3+F3,E4+F4 ,RF+,RF-, PD(CD), PD(DVD)
DVD traverse
Q101 to Q104
LD(CD), LD(DVD)
mechanism
LASER DRIVER
VCC(HF) Q105 /HFMON
HFM SW
FM+/-
WOUT F+/-
VOUT T+/-
UOUT SPDRV, TRSDRV, FODRV, TRDRV
IC201
COM /DRVMUTE, /SPMUTE, FG
DVD traverse
DRIVER
mechanism
Power supply section
Q951, Q953
F+,F-
FL SW, -VDISP SW
-VDISP
D955
B5V, D5V
B5V REG.
D954
T901
IC901
M9V
M9V
POWER
SWITCH
TRANS. DVD3.3V
REG. D5V
IC951
D970
D5V REG. SYS-PON
DVD5V
DIODE
Q954,Q955
BRIDGE DVD-PON
DVD5V SW
SYS-PON
P901
Q958 to Q961
A+12V
A+/-12V REG. A-12V
AC IN
FL display section
F+,F-
DI-CK
-VDISP
DI-DT
G1 to G12
IC501 DI-CS
B5V,D5V
DI501 S1 to 16 ILLUMI1
FL
FL DISPLAY
DRIVER
REMOCON
IC511
REMOCON
(LED) FL display section (Key)
ILLU-LED
ILLUMI.
KEY1, KEY2
LED
S521 to S524,S526 to S529
OPERATION SW
EXADT0 to 15, EXADR16 to 20
NEXCE, NEXOE, NEXWE
LPCO1, LPCO2
CDLDCUR, DVDLDCUR
MONI1,P10,P11
MA0 to 11, BA0, BA1,MCK
IC301
MDQ0 to 15, DQM0,DQM1
X301
PANTERA-2 NCSM,NRAS, NCAS, NWE
27MHz
TRVSW
DVD loading section
LOADING
MOTOR
TRAY
OPEN
CLOSE
SW
CN1 CN701
CN408 CN402
System control section
TRAY+,-
IC493
TOPEN,TCLOSE
TRAY DRIVE
OPENSW
CLOSESW
B5V
D5V
USDT
SYS-PON, DVD-PON
UCS
SCLK
IC473
DVD-5V
X4701
LEVEL
IC471
DVD-4V
8MHz
SIFT
M9V
SYSTEM
+12V Q4821
VOL-MUTE, VOL-DT, VOL-CK, SETUP, TU, L-R
MICOM
AM-BEAT
-12V MICMUTE, STANBY, ECHO
AM-BEAT
CUT
SW-PON
RESET-IN/RST
Q4702
S-MUTE
IC472
RESET
TU-L
TU-R
F+,F-
DI-CK
-VDISP DI-DT
HP-DET
DI-CS
B5V,D5V
REMOCON
TU-DI
TU-DO
TU-CK
TU-CE
ILLU_LED
TU-PON
KEY1, KEY2
Q4091, Q4092
TU9V
TU9V REG.
Audio signal input/output section
IC509
FLASH ROM
Q1131
HPOUT-L
IC510
HPOUT-R Q1133
EEPROM Q1135
S.MUTE
IC505
SMUTE
SDRAM
VOL-MUTE
DACCK
VOL-DT
AIN
VOL-CK
LRCK
BCK
ADCRST
DAC1OUT
AOUT 0 to 2
DAC2OUT DACPDN
OUT-SL
IC154
DAC0CS
DAC3OUT
OUT-SR
DAC1CS AUDIO
DAC4OUT
DAC2CS
SW
DAC5OUT
DCLK
TX
DDATA
RX
IC701
Q1251
U2SDT L-R,TU
to
Q1252
S2UDT
IC704
UCLK
TU-L, TU-R
UCS AUDIO
TU-SW
CPURST
DAC
SCS
OUT-L
IC531
AINL
OUT-R
AINR OUT-C
IC581
FAOUTL
OUT-SW
IC591
FAOUTR
AMP.
RAOUTL
RAOUTR
LRMUTE
CAOUT
SWAOUT MIC
CN702 CN442 CN441 FW443
CN401 CN412 CN411 FW403
Video input/output
OUT-SW,OUT-C
OUT-SR,OUT-SL section
OUT-L, OUT-R MIC
LRMUTE
VIDEO-MUTE1, VIDEO-MUTE2
VIDEO-YCMIX, VIDEO-RGB
VIDEO-SW, VCR-S/C
AINL AUX-L
IC476
AINR AUX-R
AMP.
Q4811, Q4812
SWPON
SW-PON
Q4801, Q4802
SMUTE
S-MUTE
DRIVER
TU-L, TU-R
IC475, IC478
TU-SW
TUNER AMP.
HP-L HPOUT-L
IC601
HP-R HPOUT-R
HP AMP.
CN420 CN460
FW601 CN760
HEAD
STANBY
HP-L,HP-R,HP-DET
PHONE
FL display section
OUT
(Headphone)
MICMUTE
ECHO, MIC
IC761
Tuner DIGITAL ECHO
Pack
MIC input section
<Subwoofer section>
Amplifier section
SW.P.ON, SETUP
SYSTEM
C,SW
IC158 SL,SR,L,R CONNECTOR
to
IC160
AMP.
C, SW,SL
IC153
6CH
VOL.
SR,L, R
C, SW,SL
SR,L, R
Mini Din
CONNECTOR P.ON_SIG
DIGITAL
DIN
IC151
IN
IC152
AUDIO
PROTECT
SW
POWER_CTL
CN273
CN502
AUX-L J1101
AUX-R
AUX IN
PROTECT
Q523 to Q525
PROTECTOR
IC431
VIDEO
DRIVER
CR-R Cr
VIDEO OUT
CB-B Cb
P.ON_SIG
(COMPONENT)
Y2-G Y POWER_CTL
P.ON_SIG
C
C IN
VIDEO OUT
P.ON_SIG
Y1 IN Y
Q501 to Q505
(S-VIDEO/
POWER CONTROL
COMPOSITE)
CV
& PROTECTOR
CV IN
IC411
VIDEO
SW
C C
C OUT
VCR IN
CV-Y1 Y
(S-VIDEO/
Y OUT
COMPOSITE)
CV-Y1 CV
CV OUT
AC IN RY101
D511
STANDBY LED
MICMUTE
MIC
IN 1
IC701
S901
MIX IN
MIC
VOLTAGE
MIC
AMP. SELECT SW
IN 2
Mother section
J2702
IC201
FLOUT
POWER
RY271
AMP. FROUT
FCOUT
RY272
SLOUT
IC202
POWER
SROUT
AMP.
RY273
IC301
SW_SIG
AMP.
SR_SIG
IC302
AMP.
SP_RELAY+
SP_RELAY-
AD_SL AD_L
AD_C AD_R
CN272 CN271
CN372 CN501
TX/RX
DC_DETECT
TO SW
SW_SIG
TH+
SPEAKER
SR_SIG
A/D_SL
IC303 A/D_C
A/D_R
AMP.
iPROTECT
A/D_L
SSSETUP
SP_RELAY+
SP_RELAY-
Q603
IC601
Q604
MICOM
Vlow
Q542
LOW VOLTAGE
DETECTOR
RESET
+5V
Q152
5V_REG.
+7V
D165 -7V
7V_REG.
+VH, -VH D166
-7V_REG.
+VL, -VL
D151, D152
CN151
CN152
T101
POWER
TRANS.
2-1