JVC LT-26A70BJ Service Manual page 48

MAIN PWB CIRCUIT DIAGRAM (3/4) SHEET 3
FB9 OPEN
CN00A
FB31 *1
FB41 *1
FB42 OPEN
POWER PWB
FB38 *1
CN900A
FB26
FB27
SHEET 5
FB28
FB33
24V 12V
CN00F
FB29
FB30
POWER PWB
CN900F SP_VCC
SHEET 5 GND FB34
C315
SP.GND
SHEET 1,2
A_MUTE
SHEET 1
S_PWR
SHEET 4 SCDT
T-V_LINKIN
EDID_WP
T-V_LINK_CNTL
SHEET 2
T-V_LINKOUT
SC_RGB_CNTL
HDMI_PRO
CECIN
KEYA
KEYB
SHEET 1
TU_AGC
TU_AFT
HP_DET
CN00U
FB19 *1
IR PWB
FB20 *1
CN80U
C298 C299 C300
100p 100p 100p
SHEET 7
5V0_SB
FB21 *1
GND
5V0_SB
C274
1/10
3V3_SB
GND
FB18
5V0
C105 C336 R175
C277
.33 470p OPEN
22/16
PX_VD_3V3
FB15
C275
1/10
FB12
*1
GND
5V0
C278 C96 C334 R176
22/16 .33 470p
FB14
PX_HDMI_3V3
C276
1/10
GND
C279 C97 C335 R177
22/16 .33 470p OPEN
GND
5V0
NOTE : Refer to the part list for the part number of IC7.
PX_VD_3V3
R147 R294
3.3k OPEN
C314 R101
OPEN OPEN
R291
OPEN R322
0
BKLT_PWR
Q41
BKLT_CNTL
OPEN
C248 R295
.1/16 OPEN POWER
LB_PRO
5V0_SB
BT32V
GND
A_MUTE
S_PWR
SCDT
T-V_LINKIN
EDID_WP
T-V_LINK_CNTL
T-V_LINKOUT
T-V_LINKIN
SC_RGB_CNTL
HDMI_PRO EDID_WP
CECIN
KEYA T-V_LINK_CNTL
KEYB T-V_LINKOUT
TU_AGC SCDT
TU_AFT uP_AD7
HP_DET uP_AD6
LED_ON
IR
3V3_SB
uP_AD5
R105 R104 uP_AD4
3.3k 3.3k
uP_AD3
uP_AD2
uP_AD1
uP_AD0
PX_VDDMQ
TU_AGC
IC18
FB43
C714 C715 TU_AFT
OPEN OPEN
LB_PRO
5V0 HDMI_PRO
C713
C102 OPEN
C284
.1/16
47/6.3 PX_VA_1V8
PX_VDDM
KEYA
KEYB
FB44
R279
10k
GND
3V3_SB
FB16
C104 C283 C103 C711 C712
.1/16 47/6.3 .1/16 OPEN OPEN
C280 C293
47/6.3 1/16 A_MUTE R319
BKLT_PWR R191
E_PAGE
C191 C62
.1/16
R277
5.6k
GND
C251
1/16
GND PX_VA_1V8
FB32
C282
1/10 GND C286 C99
PX_VL_1V8
47/6.3 .1/16
FB45
C780 C782 C784 PNL_PWR R204
OPEN OPEN OPEN
GND POWER R205
SC_RGB_CNTL R122
S_PWR R207
C98 C779 C785
C287 C100 C296 R253 HP_DET R208
.1/16 OPEN OPEN
22/16 .33 470p OPEN
C781 C783
OPEN OPEN
GND
PX_VD_1V8
C285 L33
.01/16 C708
OPEN
FB52
D45
C710
OPEN
R64
C281 8.2k
C236
.1/16
IC14 IC14 C707 C709
OPEN OPEN CPU_RESET
R65
1.5k GND
GND
C93 C95 C237 R38
OPEN OPEN 5600p 10k
R39
3.9k
GND
5V0 12V
C732 C734 C736 C738 C740 C743 C745 C748 C750 C752
OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN
C746
OPEN
C731 C733 C735 C737 C739 C741 C742 C744 C747 C749 C751
OPEN OPEN OPEN OPEN OPEN OPEN GND OPEN OPEN OPEN OPEN OPEN
GND SP.GND
BT32V 3V3_SB 5V0_SB
C725 C727 C729 C794 C795 C717 C719 C721 C723
OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN
C726 C728 C730 C796 C797 C716 C718 C720 C722 C724
OPEN OPEN OPEN GND OPEN OPEN GND OPEN OPEN OPEN OPEN OPEN GND
MAIN PWB ASS'Y(3/4)
SFT-1051A-U2 [LT-26A70BJ, LT-26A70BU, LT-26A70SJ, LT-26A70SU]
SHEET 4
SFT-1052A-U2 [LT-32A70BJ, LT-32A70BU, LT-32A70GU, LT-32A70SJ, LT-32A70SU]
RA254
8051_AD7 uP_AD7 uP_A0
8051_AD6 uP_AD6 uP_A1
8051_AD5 uP_AD5 uP_A2
8051_AD4 uP_AD4 uP_A3
8051_AD3 uP_AD3 uP_A4
8051_AD2 uP_AD2 uP_A5
8051_AD1 uP_AD1 uP_A6
8051_AD0 uP_AD0 uP_A7
RA253
3V3_SB 3V3_SB
GND
C192
R6 100
R257 100 C61
.1/16
R203 100
R202 100
R201 100
R250
R209
R148
R149
R200 100
IC 3
R199 100 R251
MICOM
R198 100 R252
(CPU)
R197 0
R196 4.7k
R195 100 R63
R194 100 R226
R129
R130
GND
R15
100
100
3V3_SB
GND
100
100
100
100
100
3V3_SB 5V0_SB
GND
C63
.1/16
R166
IC6 10k
GND GND R97
100
3V3_SB Q30
3V3_SB 3V3_SB
GND
C60 R259 D1
.1/16 100k
R10
3V3_SB
0 C59
.1/16
R158
GND GND R162
4.7k
100
24V 5V0 12V
C321 L40
.01/16
FB35
D53
D58
C330 C319
C331 C320
.1
C332 .1/16
R216
39k
IC22 IC22 IC23 IC23
R221
GND 5.6k
C13 C316 C328 C317
OPEN OPEN 5600p 2700p
R28
10k
R219
3.9k
GND
(No.YA492)2-11 2-12(No.YA492)
3V3_SB
C57 IC4 IC
OPEN OPEN
RA97
OPEN
8051_AD0 uP_A14 uP_A16
R13 OPEN
8051_AD1 uP_A12 8051_WR# uP_A15
8051_AD2 uP_A7 uP_A13 uP_A14
8051_AD3 uP_A6 uP_A8 uP_A13
8051_AD4 uP_A5 uP_A9 uP_A12
8051_AD5 uP_A4 uP_A11 uP_A11
R12 OPEN
8051_AD6 uP_A3 8051_RD# uP_A10
8051_AD7 uP_A2 uP_A10 uP_A9
uP_A1 uP_A20
RA96
OPEN uP_A0 uP_AD7
R255
33
uP_AD0 uP_AD6
uP_AD1 uP_AD5 CPU_RESET
uP_AD2 uP_AD4 R16
0
uP_AD3
uP_A19
uP_A18
uP_A8
GND
3V3_SB
uP_A7
uP_A6
uP_A5
R318
10k
uP_A4
uP_A3
uP_A2
8051_WR#
8051_RD#
uP_A18 R151 R150
22 22
uP_A19
0
OPEN uP_A20
22 8051_CS2PX
OPEN
OPEN
0
RESET_L
IC20
47k
3V3_SB
100 8051_ALE
12V
4.7k
OPEN
0 RESET_H
FB17
R131
4.7k 5V0_SB
C153
100/16
GND
R14 CN4
0 OPEN
SCL5
SDA5
RX
HDMI_DAC_MUTE
GND RESET_H
TX RESET_L
SDAE
SCLE
CECIN
CNVSS
3V3_SB
R32 PX_INT#
OPEN
HDMI_DET
GND
GND
R320 0
C5 C6
CPU_RESET
OPEN OPEN
R321 0
R227 100 SCL3 SDA3
R228 100 SDA3 SCL3
R212 1k BKLT_CNTL
S_MUTE
R214 100 S_MUTE
R210 100 LED_ON
IR
R217 100 PX_INT#
R120 100 HDMI_DAC_MUTE
SDAE
R254 100 DEBUG
SCLE
SDA3 R280 OPEN
SCL3 R281 OPEN
D65
5V0_SB
HDMI_DET 5V0
D66
DEBUG
CPU_RESET D54
E_PAGE
D60
LCD_VCC
3V3_SB
C327 L41
.01/16
D59 C333
R218
39k
R225 100
SDAE
R222
5.6k SCLE R224 100
E_PAGE
C188 C187
GND C189
100p 100p
.1/16
(SETTING DATA)
C318 C329
R29
OPEN 5600p
10k
R220
3.9k
3V3_SB
L13
5
uP_A17
uP_A0
uP_AD7
uP_AD6
uP_AD5
C186 uP_AD4
uP_AD3
GND
C129
.01/16
uP_AD2
uP_AD1
uP_AD0
uP_A1
FLASH ROM
GND
3V3_SB
R96 R92
1k OPEN
R93
OPEN
GND
8V0
C702
OPEN
C106 C701 C703
.1/16 C288 OPEN OPEN
CN2
GND OPEN
GND
HDMI_DAC_MUTE
SHEET 4
RESET_H
SHEET 1
RESET_L
SHEET 4
PX_INT#
HDMI_DET SHEET 2
SDA5
SDA5
SHEET 1,2,4
SCL5
SCL5
SDA3
SHEET 1,4
SCL3
SHEET 1
S_MUTE
GND CN001
OPEN
GND
IC 7
EEP
GND
ROM
c10496001a003_1106_3/4_0.0