SERVICE MANUAL
DOCUMENT CREATED IN JAPAN, Sept., 2005
Plasma Monitor
42DPC85
FILE NO. 020-200521
TOSHIBA CORPORATION 2005
-
1
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Published in Japan, Sep. 2005 (YC)
SCHEMATIC DIAGRAM
MODEL : 42DPC85
WARNING : BEFORE SERVICING THIS CHASSIS, READ THE "SERVICE SAFETY PRECAUTIONS" ON THE MANUAL
FOR THIS MODEL.
CAUTION : The international hazard symbols " " in the schematic diagram and the parts list designate components
which have special characteristics important for safety and should be replaced only with types identical to those in the
original circuit or specified in the parts list. The mounting position of replacements is to be identical with originals. Before
replacing any of these components, read carefully the SERVICE SAFETY PRECAUTIONS on the MANUAL for this
model. Do not degrade the safety of the receiver through improper servicing.
NOTE:
1. RESISTOR Resistance is shown in ohm [K = 1.000, M = 1.000.000]. All resistors are 1/6W and 5%
tolerance carbon resistor, unless otherwise noted as the following marks.
1/2R = Metal or Metal oxide of 1/2 watt 1/2S = Carbon compsistion of 1/2 watt
1RF = Fuse resistor of 1 watt 10W = Cement of 10 watt
K = ±10% G = ±2% F = ± 1%
2. CAPACITOR Unless otherwise noted in schematic, all capacitor values less than 1 are expressed in
?F, and the values more than 1 in pF.
All capacitors are ceramic 50V, unless otherwise noted as the following marks.
Electolytic capacitor Mylar capacitor
3. The parts indicated with " * " have special characteristics, and should be replaced with identical parts only.
4. Voltages read with DIGITAL MULTI-METER from point indicated to chassing ground, using a color bar signal with all
controls at normal, line voltage 220 volts.
5. Waveforms are taken receiving color bar signal with enough sensitivity.
6. Voltage reading shown are nominal values and may vary ±20% except H.V.
SCHEMATIC DIAGRAM STRUCTURE:
AV/AOUT CONNECTOR [SHEET-1/4]........ 1/47
AV-TERMINAL [SHEET-2/4]........ 2/47
A-OUT [SHEET-3/4]........ 3/47
EXPANDER FOR PDP [SHEET-4/4]........ 4/47
FRONT-AV ........................................................................................................................................................... 5/47
IR LED ................................................................................................................................................................ 6/47
KEY ..................................................................................................................................................................... 7/47
LOWB .................................................................................................................................................................. 8/47
SIGNAL ANALOG IN [SHEET-200]........ 9/47
D IN A [SHEET-300]...... 10/47
D IN B [SHEET-301]...... 11/47
HDMI (Link, I2C) [SHEET-302]...... 12/47
HDMI Rx#2 (Video/Audio) [SHEET-303]...... 13/47
HDMI Rx#3 (PWR,Audio) [SHEET-304]...... 14/47
HDMI AUDIO PLL [SHEET-305]...... 15/47
HDMI AUDIO DAC [SHEET-306]...... 16/47
HDMI AUDIO OUT [SHEET-307]...... 17/47
HDMI CONTROLLER [SHEET-308]...... 18/47
EEPROM1 [SHEET-309]...... 19/47
EEPROM2 [SHEET-310]...... 20/47
MICRO I/O [SHEET-400]...... 21/47
OCM MEMORY I/F [SHEET-401]...... 22/47
FLASH MEMORY [SHEET-402]...... 23/47
SYNC SEPA [SHEET-403]...... 24/47
E2P OTHER [SHEET-404] ...... 25/47
STD-BY MICOR [SHEET-405]...... 26/47
CORTEZ REG 1 [SHEET-406]...... 27/47
CORTEZ REG 2 [SHEET-407]...... 28/47
CORTEZ REG 3 [SHEET-408]...... 29/47
BOOT CONFIG [SHEET-409]...... 30/47
SERVICE CONNECTOR [SHEET-410]...... 31/47
I2C Switch [SHEET-411]...... 32/47
STBY MICRO for DVD internal [SHEET-412]...... 33/47
DVD 10pin connector [SHEET-413]...... 34/47
I2C Level shift [SHEET-414]...... 35/47
AUDIO [SHEET-600]...... 36/47
AUDIO MSP [SHEET-601]...... 37/47
CORTEZ 1 [SHEET-700]...... 38/47
CORTEZ 2 [SHEET-701]...... 39/47
DDR I/F [SHEET-702]...... 40/47
DDR SDRAM [SHEET-703]......
41/47
DDR TERMINATION [SHEET-704]...... 42/47
DCDC CONV. [SHEET-802]...... 43/47
LVDS OUT [SHEET-900] ...... 44/47
LVDS OUT(SHARP LCD) [SHEET-901] ...... 45/47
Power Connector and Dimming [SHEET-902] ...... 46/47
LVDS Power and Others [SHEET-903] ...... 47/47
(1/47)
FLUX CF330VH
NV11
THINNER4520
NV10
SOLDER9025SE
NV08
SOLDER9025SE
NV09
SOLDEREX9025
NV07
FLUX CF330VH
NV05
FLUX CF330VH
NV06
THINNER4520
NV04
PWB PD****-1
U121
SOLDEREX9025
NV01
SOLDER9025SE
NV03
SOLDER9025SE
NV02
OTHER PARTS
TO SIGNAL BOARD
9637S-50ATL\FFC/FPC 0.5mm50P SOCKET
PJ60A
9637S-50ATL\FFC/FPC 0.5mm50P SOCKET
PJ22A
50P-FFC 50P-FFC
PLUG_2mm_3P\B3B-PH-K-S
PJ21A
SYS_SW1(NC)
SYS_SW2(NC)
GND
SIF(NC)
GND
L_SC1-IN
L_SC1-IN
R_SC1-IN
R_SC1-IN
GND
GND
L_SC2-IN
L_SC2-IN
R_SC2-IN
R_SC2-IN
GND
GND
1112 1039454950 47 4648 41 4044 4243 24 22 212329 283132 30 2527 26 1415 131920 1618 1736 3538 37 3334 781642359
L_SC3-IN
L_SC3-IN
R_SC3-IN
R_SC3-IN
GND
GND
L_SC4-IN
L_SC4-IN
R_SC4-IN
R_SC4-IN
GND
GND
L_MONITOR
L_MONITOR
R_MONITOR
R_MONITOR
GND
L_APRO
R_APRO
W_APRO
GND
L_TV(NC)
R_TV(NC)
GND
L_BS(NC)
R_BS(NC)
GND
L_HDMI
R_HDMI
MUTE
EXT_MUTE
BS_TV_MUTE
ARXD_cortez
PDP_MUTE
PDP_CONT_EN
UART_SW
V_PC
H_PC
ATXD_cortez
SW_DVI1
SW_DVI2
NC(STOP_FAN)
CS_S_SW
NC(LR_LNB)
NC(SHORT_LNB)
S_SW_E3
S_SW_E2
SCL1
SDA1
POD_STOP_FAN
S_SW_E1
MONI_SW
OPT9
OPT8
EPG_SW
MONI-OUT
GND
V_EPG(to Seine)
OPT3(NC)
GND
NC(V_DGT)
SNV(RET)
SHORT
RV44
GND
C4(SY_E1)
GND
B4
GND
A4(PR_CS2)
GND
SV4(V_E2)
SHORT
CN(RET)
RV43
GND
C3(V_E3)
GND
B3(Y_CS2)
GND
A3(PR_CS1)
GND
SV3
BN(RET)
GND
C2
GND
B2(Y_CS1)
GND
A2(V_E1)
GND
SV2
SHORT
AN(RET)
RV41
GND
B1(SC_E1)
GND
C1(PB_CS1)
GND
SV1(PB_CS2)
GND
4950 4748 46454443424140393837363534333231302928272625242322212019181716151413121110987654321
A1
MTZJ6.2B
DE99
5V-2
GND
9V1
321
3P
PDP_MUTE
SHORT
RV42
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
L_HDMI
R_HDMI
MUTE
EXT_MUTE
PDP_CONT_EN
SW_DVI1
SW_DVI2
SCL1
SDA1
MOUT
GND
GND
SY_E1
GND
PR_CS2
GND
V_E2
GND
V_E3
GND
Y_CS2
GND
PR_CS1
GND
Y_CS1
GND
V_E1
GND
SC_E1
GND
PB_CS1
GND
PB_CS2
L_SC1-IN
R_SC1-IN
L_SC2-IN
R_SC2-IN
L_SC3-IN
R_SC3-IN
L_SC4-IN
R_SC4-IN
L_MONITOR
R_MONITOR
L_APRO
R_APRO
S_SW_E1
TO LOWB BOARD
2-D7
2-D7
2-B3
2-B3
2-A3
2-A3
1-C6
1-C6
2-E7
2-E7
3-A1
3-A1
FRONT-AVFRONT-AV(E3)
5P
2-C7
2-C7
3-A1
3-B1
PDP_MUTE
4-A2
PDP_CONT_EN
4-A2
7P
2-C7
2-C7
4-A1
4-B1
B5B-PH-K-S
P602A
GND
L_AUDIO
R_AUDIO
GND
NC
B7B-PH-K-S
PV25A
GND
V_E3
GND
L_E3
R_E3
TUNER GND(2mm)
TUNER GND(2mm)
GND_AUDIO
L_OUT
3124
R_OUT
GND_AUDIO
5
TEM2034AD
LV209
OPEN
RV55
53476 12
12P
32V(NC)
9V-2(NC)
GND
5V-1
9V-1
GND
587
6
214
3
P803B
W-B 12P_2.5mm_1.5A_Beige
5V1
9V1
1-C7,1-E7,3-A2,3-A2,3-A2
1-C7,1-E7,3-A2,3-A2,3-A2
1-B3
L_SC4-IN
1-B7
R_SC4-IN
1-B7
2-B7
GND_AUDIO
3-A2
L_OUT
3-A2
R_OUT
GND_AUDIO
OPEN
RV56
GND
V_E3
GND
GND
NC12
ACDETECT
5V-3
GND
GND
5V-3
26V
9
132
11
10
5V3
26V
ACDETECT
26V
SOUND GND4
SOUND GND
GND_AUDIO
POD_STOP_FAN(NC)
5
GND
6
6P
P804B
6P_2.5mm_1.5A_Beige
42DPC85
AV/AOUT
CONNECTOR
[SHEET-1/4]
2-A4
2-D7
2-A4
2-D3
2-B3
1-C6
2-D3
2-C3
2-C3
2-A4
2-A4
2-C3
2-D3
OPEN
OPEN
RV58
RV57
OPEN
OPEN
RV59
RV60
TA8246AHQ
Q670
(3/47)
42DPC85
AV/AOUT
A-OUT
[SHEET-3/4]
1-E7
26V
VCC_GND
GND_AUDIO
26V
D607
MA8330-M
KDS160-RTK/P
KDS160-RTK/P
D674
D675
B50V0.1
R679
C679
1
OUT(R)
12
NC
GND
VCC
OUT(L)
MUTE TC
SCREW BITTB 3x10 ECOQ670B
HEAT SINK
Q670A
FILTER
MUTE
L/R
IN (L)
GND
IN(R)
NC
B50V0.01
35V1000
11
+
KDS160-RTK/P
10
D670
9
8
7
642
135
B16V1.0u
C674
16V47u
C673
+
1k
R6604
50V10
C671
+
50V10
C670
+
OPEN
R676
M
B680p
C662
R672
1.8k
1/8W 2.2
C684
C680
KDS160-RTK/P
D671
C678
R678
B50V0.1
1/8W 2.2
C664
R677
OPEN
1-C7
1-C7
L_OUT
R_OUT
35V2200
OPEN
L_OUT
+
C682
Q672
2SC3326-B(TE85,F)
35V2200
R_OUT
+
GND_AUDIO
GND_AUDIO
2SC3326-B(TE85,F)
Q671
C692
B16V0.22
47K
R680
OPEN
C675
+
C691
47K
R681
B16V0.22
GND_AUDIO
GND_AUDIO
C681
C665
OPEN
M
C663
B680p
1.8k
R673
2-E7
A_MUTE
A_MUTE
KETSU
D680
R684
100k
C677
OPEN
C666
M
4.7k
R670
OPEN
R674
+
C660
50V4.7
R_APRO GND_AUDIO
R_APRO
1-B7
GND
C667
OPEN
M
4.7k
R671
R675
OPEN
+
50V4.7
C661
R664
100K
C669
B1000p
D676
KDS160-RTK/P
L_APRO
GND
L_APRO
MUTE
1-B6
Q673
2SA1162-Y
1-B7
B16V1.0u
1k
R686
10V1u
C685
10k
R683
+
C690
6.3V1000
D678
KDS160-RTK/P
2.2k
R685
5V1
Q661
2SC4081-Q
R691
10k
R692
22k
Q660
2SC4081-Q
ACDETECT
Q665
RN2404(TE85L,F)
R6606
100K
10k
R6605
Q664
R6603
22k
EXT_MUTE
2SC4081-Q
47k
R690
5V1
EXT_MUTE
1-B6
1-D7
ACDETECT
1-D7
ROKUGA2KAISEN
1
TAIKI(LED_GREEN)
ROKUGA_YOYAKU
GND
3
4
5
(6/47)
42DPC85
IR LED
RMT_FGND
RMT_IN
JUZOU(LED_RED)6
GND
5V1
9
8
7
11
10 3.3V
PJ41C
B11B-PH-K-S
CB01
+
CB38
RB24
CHIP_JP
7L10V220u
25V0.1
RB22
CB05
7L10V220u
+
CB04
25V0.1
QB07
2SC2712Y
RB15
470
OPEN
RB18
LED HOLDER
DB01A
DB01
SCL-003URC3FXGHJ
POWER
(RED)
OPEN
47
RB08
47
RB09
DB22
1SS355-TE17
DB23
1SS355-TE17
+
CB03 DB20CB02
25V0.1 UDZS TE-17 5.6B7L10V220u
321
GP1UE281RK0F
5
4
GND
Vcc
Vout
GPIUE281RK
KB01