Panasonic PT-56LCX70 Service Manual page 68

PT-56LCX70 / PT-61LCX70 / PT-50LCX7 / PT-56LCX7 / PT-61LCX7
REAR JACK SCHEMATIC DIAGRAM
REAR JACK/FAN DRIVE
CN3502
TO FRONT JACK
/OPERATION P.C.B.
CN6701
1
AV3_V
2
GND
3
AV3_L
4
GND
5
AV3_R
6
GND
C4122 C4125
PT
PT
TO MAIN P.C.B
CN3001
CN3501
1
1
V1_V
2
2 V1_S_DET
3
3 V1_Y
4
4 V1_C
5
5 GND
6
6 V2_V
7
7 GND
8
8 V3_V
9
9 GND
10
10 D1_Y
11
D1_PB
11
12
12 D1_PR
13
13 GND
14
14 D2_Y
15
15 D2_PB
16
D2_PR
16
17
GND
17
18
18 MON_V
19
MAIN_L
19
20
20 MAIN_R
21
TNR_L_AUDIO
21
22
22 TNR_R_AUDIO
23
23 DTV_L
24
24 DTV_R
25
25 A_MON_MUTE
26
26 PC_AUDIO_L
27
27 PC_AUDIO_R
28
28 FAN_SD_CTL
29
29 FAN_LOCK
30
30
THERMO
31
31 COVER_SW
32
32 SDA_+5V
33
33 SCL_+5V
34
34 DTV+9V
35
35
FAN_GND
JS2751
PT
JS2753
PT
R2760 R2758 R2756 R2754
1800 4700 10k 47k
Q2751
2SD1819AHL
(FAN LOCK DET)
Q2752
2SD1819AHL
(FAN LOCK DET)
Q2753
2SD1819AHL
(FAN LOCK DET)
1 2
3 4
(TO FRONT FAN) CN2751
1
TP2751
2
R2761 L2752
100
3 PT
L2757
L2751
PT
PT
R2762
100
CN2752 (TO REAR FAN)
1
R2763
TP2752
100
2
L2756
L2753
PT
R2765 PT
R2789 150k
R2786 1k
Q2756
1 8 PT
OUTPUT R2787
R2784 18k
V+
HZ L
H H
1V
2 OUTPUT 7 L L
- Q2755
2SD0601A0L
3 6 2.5V
(SWITCHING)
-
4 5
GND
IC2756
C0BBBA000022
(CMPARATOR)
FAN 7V
IC2751
C0DBEKG00003
(FAN DRIVE)
TP2759
9V
68
270k