Block Diagram - JVC TH-L1A Service Manual

Block diagram

DSP section
MA0 to 11, MDQ0 to 15
BA0, BA1, MCK, DQM0, DQM1,NCSM, NRAS, NCAS, NWE
X301
27MHz
EXDT0 to 15, EXADT0 to 15, EXADR16 to 20
X302,IC303 NEXCE, NEXOE, NEXWE
48MHz
CPURST
IC301
IC510
SDA, SCK
UCS, SCS, UCLK(SCLK), U2SDT, S2UDT
DV5
EEPROM
RX(DSPRX), DAC1OUT(Y/G), DAC2OUT(PBOUT), DAC3OUT(PROUT), DAC4OUT(Y), DAC5OUT(C)
NEN
IC801,Q801 NOC
5V REG.
DP
DM 5V D5.6V
CN811 CN801
CN320 CN204
D+/- D5.6V
VBUS
USB
System micon, Digitl amplifier, Video driver section
OPTICAL
OPT IN1
DIGITAL IN1
S/COMPOSITE
Y, C, Cv
VIDEO IN3
IPOD5.6V 5.0V(I-POD)
IC235 IPOD_PON
SAFETY2
IPOD 5V REG.
IPOD(RX), IPOD(TX), DG_SENS
Y, Cv IC311 IPOD_Y, IPOD_CV
iPOD
VIDEO DIFF. AMP
C
OUTL/R IC310
AUDIO DIFF. AMP
L-IN
AUX R-IN
IC253
IN AUX3 AMP.
HP_DET
HP_MUTE
HEADPHONE
HP_L/R IC109
HP MUTE
Front panel section
IC850 REMOCON
REMOCON
KEY1
S861 to S869
KEY2
KEY MATRIX
D857,D858,Q850
BLUELED
BLUE LED
D856 STANDBY
STANDBY LED
VIDEO1 to 3
D851 to D855 IPODLED, USBLED
SOURCE LED
FLDATA, FLCK
DI800
FLLAT, FLBK
FL DISPLAY
F+/-
FLVH
IC505
SDRAM
IC509
FLASH ROM
ADIN, BCK, LRCK, AOUT0 to 2, LRMUTE
CN702
CN206
ADIN
IC245
A/D CONVERTER
ADC_PDN
OUTL/R
IC272
AMP.
V1
IC261 to IC263
VIDEO3/IPOD
Y/C/CV SEL.
X, Y A, B
X0, Y0
X3, Y3
X1, Y1
IC270
Q2700,Q2701
LINE INPUT
X2, Y2
SELECTOR
PWM_5
PWM_6
IC105,Q1101,Q1201
HP AMP. & DEMODURATOR
REMOCON
KEY1
KEY2
STANDBY
LED1 to 6 (BLUELED, VIDEO1 to 3, IPODLED, USBLED)
FLDATA
FLCK
FLLAT
FLBK
F+/-
FLVH
D1.2V D2V
IC302
D1.2V REG.
P3.3V
D4V
S3.3V
IC305
IC453 DVDPWR
3.3V REG.
3.0VDET
DACCK IC706,IC707
DACCK BUFFER
DACCK+/-
CN704 CN701
CN205 CN203
UCS DSPRX
BCK AOUT0 LRMUTE DACCK+/-
D2V SCS C
LRCK to 2
D4V SCLK Y
S5V
U2SDT Y/G
S2UDT PBOUT
CPURST PROUT
DVDPWR
Q2450
IC200
SYSTEM
MICON
PWM_DT
PWM_CK
Q1002
Q1003
PWM_MUTE PWM_RST SCL, SDA
IC102
PWM_1 to 4
PWM PROCESSOR
SYS_PON
SAFETY6
D3.3V Q2300 D5.6V
D3.3V REG.
B3.3V Q2200 B5.6V
B3.3V REG.
IC53
CABLE EQULIZER With SWITCHING
HS5V
IC56
IC52,IC57
TX5V REG.
SEL Q2010
SELECT
HS6V
CTRL
HS3.3V
IC55
FAN
Q2001 to Q2009
3.3V REG.
MOTOR
HPD CTRL
HS4V
CE HPD_ACNT, HPD_BCNT
M
CN51
CN209 CN901
Coaxial in section
CE, SEL
Q2400,Q2401
HPD_ACNT, HPD_BCNT
FAN DRIVER
CN900
FAN_ST FAN_CTRL
CN905
B5V
Q2352,Q2353
CE, SEL, HPD_ACNT, HPD_BCNT
HDMI_PON
HS6V REG.
HS4V, HS6V
WP Y/G, PBOUT, PROUT
SCL
SDA IC211
EEPROM
RESET Q2101
RESET
Y, C
X2000
YOUT, COUT
8MHz
V2, V3
V4
OUT1
IC273,IC274
AUX1,2 AMP.
VALID1 SD
SAFETY3
VALID2 OTW Q1103,Q1203
OUT_A to D
IC108,IC170,IC171 Q1303,Q1403
IC103
DC DET. Q1503,Q1603
IC104
SIGNAL DET.
POWER
AMP.
Power supply section
+33V 33V
Q201,Q204
+33V SW
SAFETY6
IC260,Q231,Q232
33V
12V
+12V DC/DC
CONVERTER
SYS_PON
5.0V(I-POD)
Q251
5V REG.
33V
D201
D5.6V 33V REG.
IC250
33V
B5.6V
+5.6V DC/DC
CONVERTER
F+/- D211,Q211 T101
FL SW REG.
TRANS
FORMER
FLVH
D214,Q213,Q214
FL VH REG.
Y1 to Y4, Z1 to Z4
HDMI
SCL_SINK, SDA_SINK
MONITOR
HPD_SINK
OUT
A31 to A34, B31 to B34
HDMI
SCL3, SDA3
IN 1
HPD3
A21 to A24, B21 to B24
HDMI
SCL2, SDA2
IN 2
HPD2
HDMI section
COAXIAL
IC900
DIGITAL
BUFFER
COA(SWITCH)
IN
SWITCH
DSPRX
IC330,IC331
OPTICAL
OPT IN1
DIGITAL IN
DIGITAL IN 2
SW1 to 3
SWITCH
COMPONENT
Y/Pb/Pr IN1
VIDEO IN1
IC280,IC281 Y/Pb/Pr IN2
COMP SEL. VIDEO IN2
VIN1 to 3
IC283 Y/Pb/Pr OUT
VIDEO OUT
VIDEO AMP.
S/COMPOSITE
Y/C IN1,Y/C IN2
IC300
VIDEO IN1
CV IN1, CV IN2
to IC304
VIDEO IN2
Y/C SEL. Y/C OUT
S/COMPOSITE
VOUT
VIDEO OUT
IC290,IC291 CV OUT
CV SEL.
L-IN
R-IN AUX1 IN
AUX2 IN
FL+/-
FR+/-
SP_MEAS
RL+/-
SAFETY5
RR+/-
C+/-
SW+/- TO
SPEAKER
IC270,PC101
Q271,Q272
SYS POWER ON
IC100
SWITCH REG.
AC
D101
DIODE BRIDGE
INPUT
2-1