Read Panasonic PT-DW740U / PT-DW740E / PT-DX810U / PT-DX810E (serv.man2) Service Manual Simplified online
A75
1
2
3
4
R2408
EXB38V220JV
R3872 22
R3869
22
R2402
1M
LED_POW_R
LED_TEMP
LED_LAMP2
LED_LAMP1
LED_LAMP1
LED_ACF_G
LED_ACF_R
LED_POW_G
C2403
50V
12p
C2404
50V
12p
C2405
0.1u
16V
C2408
16V
0.1u
C2409
16V
0.1u
C2407
16V
0.1u
C2413
16V
0.1u
C2412
16V
0.1u
C2401
1u
16V
C2411
16V
0.1u
C2402
1u
16V
C2410
1u
16V
C2406
50V
1000p
C0JBAB000622
IC2406
1
NC
2
INA
3
GND
5
VCC
4
OUTY
C0JBAB000622
IC2407
1
NC
2
INA
3
GND
5
VCC
4
OUTY
C0JBAA000362
IC2403
1
IN_B
2
IN_A
3
GND
5
VCC
4
OUT_Y
C0EBE0000348
IC2402
1
OUT
2
VDD
3
GND
5
CD
4
NC
C0JBAB000622
IC2405
1
NC
2
INA
3
GND
5
VCC
4
OUTY
IC2404
C0JBAZ001876
1 1/OE
2 1A
3 1Y
4 2/OE
5 2A
6 2Y
7 GND
8
3Y
9
3A
10
3/OE
11
4Y
12
4A
13
4/OE
14
VCC
IC2401
1
NC
2
P3_5/SCL/SSCK
3
P3_3/SSI
4
P3_4/SDA/SCS
5
MODE
6
P4_3/XCIN
7
P4_4/XCOUT
8
RESET
9
XOUT/P4_7
10
VSS
11
P4_6/XIN
12
VCC
13
P2_7/TRDIOD1
14
P2_6/TRDIOC1
15
P2_5/TRDIOB1
16
P2_4/TRDIOA1
17
P2_3/TRDIOD0
18
P2_2/TRDIOC0
19
P2_1/TRDIOB0
20
P2_0/TRDIOA0/TCLK
21
P1_7/TRAIO/ INT1
22
P1_6/CLK0
23
P1_5/RXD0
24
P1_4/TXD0
25
P1_3/ KI3/AN11
26
NC
27
P4_5/INT0
28
P6_6/INT2/TDX1
29
P6_7/INT3/RXD1
30
P1_2/KI2/AN10
31
P1_1/K11/AN9
32
P1_0/K10/AN8
33
P3_1/TRBO
34
P3_0/TRAO
35
P6_5/CLK1
36
P6_4
37
P6_3
38
P0_7/AN0
39
NC
40
NC
41 P0_6/AN1
42
42
P0_5/AN2
43
P0_4/AN3
44
P4_2/VREF
45
P6_0/TREO
46
P6_2
47
P6_1
48
P0_3/AN4
49
P0_2/AN5
50
P0_1/AN6
51
P0_0/AN7
52
P3_7/SSO
L-STB3.3V
+3.3VSTB_W4
L-STB3.3V
L-STB3.3V
+5VSTB
L-STB3.3V
+3.3VSTB_W4
L-STB3.3V
L-STB3.3V
L-STB3.3V
L-STB3.3V
TP2403
TP2401
TP2408
TP2407
R8_IR_FR
RS232CIN_RX
R8_CASE_OPEN
R8_RX
R8_KEY2
CPU232IN_TX
R8_IR_RE
R8_KEY3
R8_KEY1
MAIN_TO_R8
RS232_DET
R8_TX
STB33SW
CPU232IN_RX
LED_ACF_G
LED_ACF_R
RS232CIN_TX
LED_LAMP2
STB5SW
LED_TEMP
LED_POW_R
LED_POW_G
LED_POW_G
LED_LAMP1
R8_SDA
R8_SCL
R2414
22
R2436
47k
R2419
47k
R2422 2.2k
1%
R2434
22
R2420
2.2k
1%
R2416
22
R2401
470
R2409
2.7k
R2413
22
R2406
47k
R2405
47k
R2423 2.2k
1%
R2404
22
R2424
22
R2417
47k
R2407 4.7k
R2412
22
R2415
22
R2432
22
R2418
47k
R2421
2.2k
1%
R2425
22
R2435
22
R2426
22
X2401
H0J200500048
R2438
1k
R2437
10k
RX
TX
RX
TVRS976
UART0 to MAIN CPU
RS232C
HI=MAIN CPU
LOW=R8
RS-232C-IN
RS-232C-IN
MAIN CPU
MAIN CPU UART
2.8V
PROGRAM
FROM MAIN REQ "CALL ME!"
TX
R8
RX
SEL
MODE
TX
GND
USE FOR R8C PROGRAM
GND
RESET
SUB
MICROPROCESSOR
INVERTER
AND
INVERTER
RESET
BUFFER
INVERTER
9
5
6
7
8
1
2
3
4
A
B
E
F
D
C
14
1.1. A -P.C.Board (7/7)
1. Schematic Diagram
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