JVC LT-26DY8ZG Service Manual page 41

MAIN PWB CIRCUIT DIAGRAM (3/8) SHEET 3
PC STANDBY MODE
SYNC DETECTION
5V_STBY
SHEET 2
R554
PC_HSYNC 10k
R420
Q404
10k
BC848B
R553
Q419
PC_VSYNC 10k
BC848B
R403
Q401
10k
BC848B
16 15
14 13
12 11
10 9
8 7
6 5
4 3
R421
3V3_STBY 47R 2 1
PL401
3V3_STBY
4k7
R412
Q403
R411
47k BC848B
R400
4k7
Q400
BC848B
R413
10R
IC406
3V3_STBY 3 2
LM809
SHEET 7
1
EXTERNAL AMP.
SHEET 2
VCTP_AOUT2R
VCTP_AOUT2L
VCTP_AOUT1R
SHEET 4
VCTP_AOUT1L
R410
HEADPHONE_R 47k
R417
SHORT
47k
SHORT
HEADPHONE_L
R409
SHORT
AMPLIFIER_R 47k
R416
SHORT
47k
N.C.
AMPLIFIER_L
50V
4u7
SUBW
C418
SHEET 2
L407
VCTP POWER SUPPLIES VCC_5V
L400
3V3_STBY VSUP_3V3_DAC
L408
VCC_8V
L401
3V3_STBY VSUP_3V3_FE
L406
1V8_STBY
50R_100MHZ_3A
L402
3V3_STBY VSUP_3V3_COM
TANTAL CASE A
L409
1V8_STBY
L403
3V3_STBY VSUP_3V3_LVDS
L404 VSUP_3V3_DRI_RAM
3V3_STBY 1V8_STBY
L405
3V3_STBY VSUP_3V3_IO1 3V3_STBY
NOTE : Refer to the part list for the part number of IC403.
MAIN PWB ASS'Y (3/8)
VE-20357300 [LT-26DY8ZG]
VE-20357305 [LT-26DY8ZJ]
IDTV DIGITAL INTERFACE [FFC TYPE]
R544
10k
VSUP_3V3_COM
KEYBOARD R432
PIP_CLK
R433
PIP_DATA7
R434
PIP_DATA6
R435
PIP_DATA5
R436
PIP_DATA4
R437
10k PIP_DATA3
R426 VSUP_3V3_COM
R438
PIP_DATA2
R439
R423
PIP_DATA1
1 8
R1 R440
PIP_DATA0
2 7
R2
SHEET 6
3
6
R3
4 5
R4
S402
SW_UPDATE_EN
JTAG CONN. SHEET 2
R424
TCK
1 8
R1
TDO
2 7
R2 1 656O6
TDI
3
6 2 656O5
R3
TMS
4 5
R4 3 656O4
R425
1 8
R1 4 656O3
2 7
R2 5 656O2
3 6
R3 6 656O1
4 5
R4 7 656O0
SHEET 2
8 RESETQ
C457
SC1_AUDIO_R_IN 9 AIN1R
C450
1u
16V
SC1_AUDIO_L_IN 10 AIN1L
C458
1u
16V
SC2_AUDIO_R_IN 11 AIN2R
C451 1u
16V
SC2_AUDIO_L_IN 12 AIN2L
C459
1u
16V
VCTP_AIN3R 13 AIN3R
C452 1u
16V
VCTP_AIN3L 14 AIN3L
C460
1u
16V
VCTP_AIN4R 15 AIN4R
C453
1u
16V
VCTP_AIN4L 50V 16 AIN4L
3u3 1u
16V
17 VREFAU
C445
C447
VSUP_8V_AU 18 VSUP8.OAU
100n
19 GNDA1
10V
20 SGND
21 AOUT2R
22 AOUT2L
23 AOUT1R
24 AOUT1L
25 HEADPHONER
26 HEADPHONEL
27 SPEAKERR
28 SPEAKERL
29 SUBWOOFER
30 VREFSIF
C456
31 SIFIN+
C462
56p
50V 32 SIFIN-
56p
50V 33 VSUP5.0
VSUP_5V_SIF
34 GNDA2
35 GND3.3DIG
QSS
36 VSUP3.3DIG
VSUP_3V3_DIG
SHEET 1
37 SPDIF_OUT
R427
SDO 47R 38 I2S_DA_IN
R428
39 I2S_CL
VSUP_5V_SIF SCK 47R
R429
WS 47R 40 I2S_WS
*NC
41 I2S_DEL_OUT
SHEET 5
42 I2S_DEL_IN
*NC
VSUP_8V_AU 43 I2S_DEL_CL
*NC
44 I2S_DEL_WS
VSUP_3V3_DRI_RAM 45 VSUP3.3RAM
46 GND3.3RAM
R563
VSYNC 47R 47 DVS
R562
HDMI_DEN 47R 48 DEN
VSUP_1V8_DIG
R561
HDMI_CLK 47R 49 DCLK
R560
1 8
HDMI_R7 R1 50 DRI7
2 7
HDMI_R6 R2 51 DRI6
3
6
HDMI_R5 R3 52 DRI5
4 5
R4
SHEET 5
VSUP_1V8_FE
L412
3V3_STBY VSUP_3V3_DIG
L411
VSUP_1V8_LVDS
SHEET 5
L410 L413 L414
VSUP_3V3_FL 3V3_STBY VSUP_3V3_IO3 3V3_STBY
(No.YA567<Rev.001>)2-11
10k
10k R551
10k
10k
10k
10k
10k
10k
10k
X400
20.25MHz
SHEET 1
DRX_CLK L417 L416
VSUP_3V3_VO
2-12(No.YA567<Rev.001>)
SIDE CONTROL
PWB
2 5V_COM
KEYBOARD
R543 R487
PL1
47R 47R
1
PL403 SHEET 11
R467
1k5
KEYBOARD CONN.
VSUP_3V3_COM
KEYBOARD IDTV_HSYNC
SHEET 5
HDMI_HSYNC
HSYNC
KEYBOARD
R505
1k
PC_HSYNC
SHEET 2
HDMI_DETECT
R472
1k VSUP_3V3_COM
R495
S427 4k7
R488
Q406
R473 BC848B 4k7
4k7 HDMI_MUTE
S416
R485
Q405
4k7
BC848B
HDMI_SCDT
R489 VSUP_3V3_COM
SHEET 5
4k7
S431
VSUP3.3LVDS5 156 VSUP_3V3_LVDS
IC402
*NC
LVDSB_1N 155
74LX1G86STR
*NC
LVDSB_1P 154
GND3.3LVDS4 153
*NC
LVDSB_2N 152
*NC
LVDSB_2P 151
VSUP3.3LVDS4 150 VSUP_3V3_LVDS
IDTV_ODD C488 C490
R491
*NC
LVDSB_CLKN 149 1k IDTV_VSYNC
100n 100n
*NC
LVDSB_CLKP 148 25V 16V
GND3.3LVDS3 147 VERTICAL SYNC
*NC
LVDSB_3N 146 DOUBLER
*NC
LVDSB_3P 145
LCD PANEL UNIT
GND1.8LVDS 144
R476 PARITY
REXT 143 6k2
S434
VSUP1.8LVDS 142 VSUP_1V8_LVDS 30 29 PANEL_VCC
S430 S435
LVDSA_0N 141 TXOUT0- TXOUT0- 28 27
LVDSA_0P 140 TXOUT0+ TXOUT0+ 26 25 SDA_3V3_IC
S439
VSUP3.3LVDS3 139 VSUP_3V3_LVDS 24 23 SCL_3V3_IC
S440
S446
LVDSA_1N 138 22 21
TXOUT1- TXOUT1-
S447
LVDSA_1P 137 TXOUT1+ TXOUT1+ 20 19
S448
GND3.3LVDS2 136 18 17
LVDSA_2N 135 16 15
TXOUT2- TXOUT2- VCC_12V
LVDSA_2P 134 TXOUT2+ TXOUT2+ 14 13
VSUP_3V3_LVDS R490
VSUP3.3LVDS2 133 10k 12 11 PANEL_VCC
TXCLKOUT-
LVDSA_CLKN 132 TXCLKOUT- 10 9
LVDSA_CLKP 131 TXCLKOUT+ 8 7
S436
TXCLKOUT+ S443
GND3.3LVDS1 130 10k VSUP_3V3_LVDS 6 5
R496
S445
LVDSA_3N 129 TXOUT3- TXOUT3- 4 3
S442
LVDSA_3P 128 TXOUT3+ TXOUT3+ 2 1
PL406
VSUP3.3LVDS1 127 VSUP_3V3_LVDS
R503 DISP_EN
*NC
LVDSA_4N 126 10k
LVDS OUTPUT VSUP_3V3_COM
*NC
LVDSA_4P 125
VSUP_1V8_DIG
VSUP1.8DIG 124 R542 VSUP_3V3_COM
10k
GND1.8DIG 123
SHEET 5
SW_ENABLE1
PCLK1 122 3V3_STBY
R541 VSUP_3V3_COM
PCLK2 121
10k
PCS0 120 SHEET 5 IR_DMP/DVD
R540 HDMI2_CEC
PCS1 119 10k SHEET 2
VSUP_3V3_COM
PCS2 118
HDMI2_HOTPLUG
PCS3 117 47R LED2 SHEET 5
R477
PCS4 116 47R LED1 LED2
R478
PCS5 115 STBY_ON_OFF
SHEET 8
VSUP3.3IO1_2 114 VSUP_3V3_IO1 10k VSUP_3V3_COM
R497 VSUP_3V3_COM
GND3.3IO1_2 113
OSDR0 112 VSUP_3V3_COM
OSDR1 111 R492 LED1
10k VSUP_3V3_COM
OSDR2 110 S441
OSDR3 109
10k
R504
Q408
OSDG0 108 R493 VSUP_3V3_COM 4k7
BC848B
OSDG1 107 R494 VSUP_3V3_COM
10k
R483
OSDG2 106 47R
R484
S433
OSDG3 105 47R
TV_LINK_3V3
SHEET 2
S432
PANEL_VCC_ON/OFF
SHEET 8
R501
4k7
Q407
BC848B
IC403
1 A0 VCC 8
R470
10k
VSUP_3V3_COM R498
2 A1
WP 7 10k
SHEET 4,5
VSUP_3V3_COM
AMP_MUTE SHEET 2
R499
3
IRQ A2 SCL 6 47R
SCL_3V3
DISP_EN 10k
R546
VSUP_3V3_COM R500
4 VSS SDA 5 47R
SDA_3V3
W_PROTECT
SHEET 1,5,6
L415
VCC_5V
IC405
1 Y0 VCC 16 5V_COM
SHEET 5
2 Y2 X2 15 HDMI_VSYNC
SHEET 2
3 COM_Y_OUT_IN X1 14 PC_VSYNC
4
Y3 COM_X_OUT_IN 13 VSYNC
M74HC4052
5 Y1 X0 12 IDTV_VSYNC
R528
6 INH X3 11 1k
BC848B
Q418 R535
7 VEE A 10
4k7 5V_COM
R539
4k7 SYNC_SW1
SHEET 1
8 GND B 9
S466
R529
4k7 5V_COM
R533
Q414
BC848B 47k
SYNC SWITCH
VCC_3V3
Q420
BSN20
R525
100R
SDA_3V3_IC BSN20 SDA_5V_IC
Q410
SHEET 1,5,6 SHEET 1,6,7
VCC_3V3 5V_COM
BSN20
SCL_3V3_IC Q411 R526
100R
SCL_5V_IC
SHEET 1,5,6 BSN20
SHEET 1,6,7
Q421
VCC_3V3
VSUP_3V3_COM
10k
R519
S458
CPU_GO
S468
R534
STBY_ON_OFF
PANEL_VCC 4k7
Q415
VCC_3V3 BC848B
SHEET 8
VCC_5V
R521
10k VSUP_3V3_COM
S457
R532
PDP_GO/BL_ON_OFF
4k7
Q413
IRQ_PDP BC848B SHEET 8
10k VSUP_3V3_COM
R514
IR DETECT & LED DRIVE
VCC_3V3
VCC_12V
LED PWB
PL1
SHEET 12
Q409
BC848B
R518
4k7
S450
R516 R536
IR_VCTP 4k7 220R
S452
R515 R537
3k3 220R
Q416
R506
10k BC848B
S455
R508
10k
R517
Q417
3k3
BC848B
IDTV_SW_TX 1
INT 47R
R520 DIGITAL TUNER PWB
2
PL102
IDTV_SW_RX
47R 3
HDMI1_HOTPLUG R524
PL411
HDMI1_CEC
SHEET 5
6 5 47R UART_TX
R530
4 3 47R UART_RX
R531
5V_STBY 2 1
SHEET 2
PL408
SERVICE CONN.
*POWER ON/OFF
PORT SAVING
SHEET 8
S449
PROTECT_DETECT
R513 S453
1k
R527
Q412
BC848B 4k7
HP_DETECT
SHEET 2
SHORT CIRCUIT AND HEADPHONE DETECT
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