JVC I'Art LT-37X987, Service Manual, Page: 113 / 207

2-9(No.YA457)
R116
V3_VIN
C211
C206
R117
R132
R133
R134
R135
C204
CN00U
C103
Q105
CNCV2 CNCV1
Q281
R281
R282
R125
CN00R
SDA3A
SCL3A
R286
V1_G_Y
V1_B_Cb
Q104
C102
D283
IC104
C148
R124
C150
C151
R123
Q107
D282
Q106
D281
R126
HP_L
C149
R127
R283
R284
R128
R129
R285
C281
HP_R
HP_DET
R277
V3_LIN
V3_RIN
R138
C106
IC103
C144
C146
C147
C145
Q103
IC105
C152
C154
C155
C153
R139
R304
Q101
Q102
R105 R106
C101
R101
R102
R103
R104
DVI_L
DVI_R
IC106
R107
R108
R109
R110
R111
R112
R113
R114
R115
R119
R120
R121
R122
R197
R278
DIN_PHOTO
R130
R131
V2_LIN
V2_RIN
R276
R287
R118
V2_VIN
V1_R_Cr
R279
V1_RIN
V1_LIN
V1_VIN
V1_YIN
V1_CIN
V1_S
MON_R
MON_L
MON_V
MON_Y
MON_C
MON_SDC
M_MU
R280
CN001
C201
C202
R296
R295 R297
R298
C118
V3_R_Cr
V3_B_Cb
V3_G_Y
V2_YIN
V2_CIN
V2_S
C125
C124
C121
R163
R162
R161
IC101
R164
C119
R165
C120
R166
C126
R167
C132
R181
C143
C142
R187
C135
C133
R186
C141
R189
C138
R184
R188
C123
C122
C117
D101 D102
R169 R168
C131
C130
C134
R182
C139
C136
C137
R193 R194
CARD_DA
CARD_CK
R713
R714
R245
R246
R247
R713
R714
R198
M.PACK
MAIN_POW
R199 R200 R201
R208
A_MUTE
TALK
DSP_RST
AC_IN
POW_GOOD
MSP_RST0
BBOUT
SUB_MUTE
B1_POW
AFT1
C116
R195
C199 C200
LB_POW
R140 R141 R143 R144
R202
R146 R147
R148
R149 C107
R151
C108
R152
R153 R154
R155
R150
R157
R145
R156
R158
R159
R160
R142
C127
R177 C128 C129 R173
R203 R204
C216 C217 C218 C219 C220
R209 R210
L104 L103 L102
C282 C283 C284
C285 C286 C287
R190 R191 R192
C291 C292 C293 R301
R302 R303
R304
R300
/16
/16
B1
/16
B1
QGA1217C1-10X
/16
B1
QGA1217C1-04X
QGA1217C1-12X
QGA1217C1-09X
/16
B1
MA111-X
2SK1374-X
MA111-X
2SK1374-X
MA111-X
/16
/16
B1
UN2213-X
UN2213-X
/16
CD4066BNS-X
QGF0508C2-50W
/16
/16
/10
/10
/10
/10
FBC_Y_OUT1
CVBS/Y_OUT1
OUT1_VCC5V
C_OUT1
OUT1_GND
CVBS/Y_OUT2
OUT2_VCC5V
FBC_Y_OUT2
C_OUT2
OUT2_GND
CVBS_OUT4
FBC_CVBS_OUT4
CVBS_OUT5
FBC_CVBS_OUT5
R1_OUT
L1_OUT
R2_OUT
L2_OUT
R3_OUT
L3_OUT
AU_O_VCC9V
R10_IN
L10_IN
NC
R9_IN
C3_DC
C_IN3
FBC_CVBS_OUT3
CVBS_OUT3
DRIVER_VCC5V
Y_OUT3
DC_OUT
C_OUT3
DRIVER_GND
CVBS_IN4
CVBS4
Y_IN4
C4_DC
C_IN4
INPUT_GND
CVBS_IN5
VREF
Y_IN5
C5_DC
C_IN5
CVBS5
COMP_Y_IN1
S5
COMP_Y_IN2
ATT_MON_OUT
R2S11004FT
/10
/10
/10
/10
/16
/16
/10
/16
/50
/16
/16
/16
/16
/16
/16
/10
/10
B1
/10
B1
B1 B1 B1
OLLC10541 OLLC10541
-02
OLLC10541
-03
OLLC10541
-04
INT GND SDA SCL
GND GND GND GND GND Y Cb Cr HD VD L R
G
S
G
S
/10
B1
/16
KEY2
REMOCON
ONTIMER
BS_IR
SCL0
GND GND
TVLINK
POW_GOOD
AC_IN
LB_PR
LB_POW
MAINPOW
AUDIO_L
B1_POW
CODECRST
[EXT_YS2]
EXT_YS1
DBS_LED1 DBS_LED2
STB3.3V STB3.3V A_MUTE M_MUTE
POW_LED CARD_INT MECA_SW
AFT1
EE_CDS
MSP_RST
SDA3A SCL3A
CARD_DA
DIN_PHOT
TEXT_FR
GND GND GND GND
TXET_FB MAIN_VY
SDA0 KEY1
STB_5V
[AUDIO_R}
REC_LED
AGC
CARD_CK
TEXT_FG
DEC_Y
/16
/16
/16
L1_IN R1_IN P_EXP1 L2_IN R2_IN P_EXP2 L3_IN R3_IN AU_I_GND L4_IN R4_IN P_EXP3 L5_IN R5_IN AU_1/2_VCC L6_IN R6_IN AU_I_VCC9V L7_IN R7_IN P_EXP4 L8_IN R8_IN AU_O_GND L9_IN
FBC_Y_OUT3
Y_IN3
S3
CVBS_IN3
CVBS3
C_IN2
C2_DC
Y_IN2
S2
CVBS_IN2
CVBS2
C_IN
C1_DC
Y_IN1
INPUT_VCC5V
CVBS_IN1
CVBS_IN1_DET
Y_IN1_DET
CVBS_IN6
S4
CVBS_IN7
S1
CVBS1
SCLK
SDATA
/10
/16 /16
OPEN
0.1
4.7
OPEN
OPEN
OPEN
OPEN
OPEN
4.7
2.2
OPEN
PNP
OPEN
33k
OPEN
2.2
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
56k
OPEN
OPEN
OPEN
47
0
OPEN
OPEN
4.7
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN OPEN
10k 10k
100
100k
100k
100k
100k
OPEN
OPEN
OPEN
0
0
0
OPEN
OPEN
OPEN
OPEN
0
0
0
0
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
100k
0.1
0.1
100k
100k 100k
OPEN
1
0
1
1
1
OPEN
OPEN
0
220k
1
220k
1
220k
1
220k
1
220k
0.1
0.1
0
OPEN
1
OPEN
10
OPEN
0.01
220k
10k
0.1
0.1
0.1
OPEN OPEN
100 100
0.1
47
1
OPEN
1
10
10
OPEN OPEN
0
0
0
OPEN
OPEN
OPEN
0
0
0 0 OPEN 0
OPEN
OPEN
0
0
OPEN
OPEN
0
0
0
OPEN OPEN OPEN
OPEN
10
0
0.1 0.1
6.8k 6.8k 6.8k 6.8k
OPEN
6.8k 6.8k
OPEN OPEN
0.1 OPEN
47
OPEN
6.8k 6.8k
OPEN
33k
33k
33k
OPEN
0
0 0
33k
1
OPEN
0.1 0.1
OPEN
0 0
OPEN OPEN OPEN OPEN OPEN
OPEN OPEN
OPEN OPEN OPEN
OPEN OPEN OPEN
OPEN OPEN OPEN
OPEN OPEN OPEN
OPEN OPEN OPEN
0
0 0
OPEN
V4_RIN
V4_LIN
V3__D
V1__D
V2__S2
TV_L
TV_R
V1__S2
BS_A9V
MON_R
MON_L
MON_V
MON_SDC
MON_Y
V2_RIN
V3__G_Y
V3__B_Cb
V3__R_Cr
V3_SL
V3_VIN
V3_LIN
V3_RIN
D
V2_LIN
V2_R_Cr
V2_SL
MON_SDC
V2_B_Cb
V2_G_Y
V2_VIN
V2_YS
MON_C
V2__YIN
V2__CIN
V2__S
V1_S
V1_G_Y
DBS_LED2
V1_B_Cb
V1_R_Cr
V1_YS
V1_RIN
V1_LIN
V1_SL
V1_VIN
D
V1_YIN
V1_CIN
V3_YIN
TV_LINK
DTU_VIN
SDA3A
DTU_YIN
BS_A9V
GND
GND
BS_A9V
GND
BS_A9V
GND
V3_S
V3_CIN
V3_S2
MON
SCL3A
STB_5V
GND
REC_LED
GND
DTU_LIN
DTU_RIN
MECA_SW
DIMMER
GND
BS_A9V
GND
GND
GND
CARD__DA
CARD__CK
SCL3A
POW_LED
REMOCON
KEY2
DBS_LED1
VCC5
GND
STB3.3V
STB_5V
GND
EE_CDS1
KEY1
SDA3A
V3_CIN
GND
BS_A5V
GND
BS_A9V
GND
CARD_RIN
DIN_SR
CARD_LIN
GND
MAIN_VY
MAIN_C
SUB_C
GND
MON_L
MON_R
BS_A9V
GND GND
BS_A9V
GND
GND
BS_A9V
DTU_CIN
GND
V3_S2
MON_COUT
MON_VOUT
MON_YOUT
BS_A5V
GND
GND
BS__IR
BS_A9V
GND
GND
DIN_PHOTO
GND
BS_A5V
BS_A5V
BS_A9V
BS_A5V
GND
M.PACK B1_POW B1_POW
DEC_Y
V1_VIN
DIMMER
V1_YIN
DEC_Y
MON_COUT MON_VOUT
CARD_LIN
REMOCON
MON_Y
SCL0
MON_C
SDA0
DIN_L
CARD_Y
REC_LED
SDA0
MON_YOUT TV_MAIN
CARD_HD CARD_VD
EE_CDS1
DTU2_RIN
MON_V
TALK TALK
POW_LED
CARD_Cb
TEXT_R
MECA_SW
KEY2
TEXT_G
CARD_RIN CARD_Cr
TEXT_B
CARD__DA
TV_LINK
POW_GOOD
AC_IN
V1_CIN
MAIN_POW MSP_RST0 MAIN_POW
V2_VIN
AC_IN
POW_GOOD MSP_RST0
BS__IR
KEY1
DBS_LED1 DBS_LED2
V2_YS V1_YS
LB_POW0
DSP_RST LB_POW0 DSP_RST
V2__YIN V2__CIN V3_VIN
TV_MAIN
V3_YIN
DIN_PHOTO
DVI/DIN
DTU_RIN DVI/DIN TV_L TV_R DTU2_LIN DTU_LIN DIN_SL V1_LIN V1_RIN V2_LIN V2_RIN V3_LIN V3_RIN V4_LIN V4_RIN
DIN_SR
V1_S
V1__S2
V2__S
V2__S2
V3_S
DIN_R
DIN_SL
CARD__CK
CARD_INT
CARD__DA CARD__CK CARD_INT
SHEET2
SHEET4,5
SHEET5
SHEET5
SHEET5
SHEET3
SHEET6
SHEET3
SHEET5
SHEET4
SHEET6
OPEN
LED PWB
ASS'Y
CN100U
(SHEET26)
SW PWB
ASS'Y
CN100R
(SHEET27)
DIGITAL PWB ASS'Y(1/17)
CN001 (SHEET7
CIRCUIT DIAGRAMS
ANALOG PWB CIRCUIT DIAGRAM (1/6) SHEET 1