Panel, Ir, Door Switch, Bridge & Button Circuit - Panasonic SC-HC25GS Service Manual

15.10. PANEL, IR, DOOR SWITCH, BRIDGE & BUTTON CIRCUIT
1 2 3
SCHEMATIC DIAGRAM - 9
A
PANEL CIRCUIT
B
1 2 3
CN900
1
R900
STDBY3.3V 9
47
REM_IN 8
C
TO DIMMER 7
C900
MAIN 7.5V 6
B0BC6R100010
LCD_CE
CIRCUIT (CN900) 5
IN SCHEMATIC LCD_WR 4
DIAGRAM - 5 LCD_DI 3
D3.3V
2
DGND 1
9
D
P902B*
TO
IR CIRCUIT STDBY3.3V 1
(P902A*)
REM_IN 2
IN SCHEMATIC DGND 3
DIAGRAM - 9
R1000
0
E
BUTTON CIRCUIT
F
S901
POWER
G
CN6802
1
KEY1 7
TO 6
KEY2
MAIN CIRCUIT
DGND 5
(CN901)
PWR LED 4
S911
IN SCHEMATIC 3
D3.3V REV SKIP
DIAGRAM - 5
7.5V 2
DIMMER 1
7
H
NOTE: " * " REF IS FOR INDICATION ONLY
1 2 3
4 5 6
: +B SIGNAL LINE
Z900
L5AYAYY00061
LCD
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
CK1 CK2 CK3
1
CS
2
RD
3
WR
4 DATA
5 VSS
C907
L900
0.01
6
J0JBC0000019 VLCD
7 VDD
8 BZ
C901 R901
9 COM0
1000P 15K
10 COM1
11 COM2
R921 R922 R923 R924 R925 R926
1.2K 1.5K 2.2K 3.3K 4.7K 6.8K
S903 S904 S905 S906 S907
IPOD CD RADIO/EXT-IN STOP PLAY/PAUSE
R911 R912 R913 R914
1.2K 1.5K 2.2K 3.3K
S912 S913 S914 S915
FWD SKIP VOL - VOL + CD OPEN/CLOSE
4 5 6
7 8 9
TO
PANEL
CIRCUIT (P902B*)
IN SCHEMATIC
DIAGRAM - 9
27 28 29 30 31 32 33 34 35 36
44 43 42 41 40 39 38 37 36 35 34
SEG11
33
SEG11
SEG12
SEG12 32
[44] SEG0 [34] SEG10
SEG13
[35] SEG9
SEG13 31
SEG14
SEG14
30
IC900
SEG15
SEG15 29
C0HBA0000295
SEG16
28
SEG16
LCD DRIVER
SEG17
SEG17 27
SEG18
26
[12] COM3 [21] SEG23 SEG18
SEG19
[13] SEG31 [22] SEG22
SEG19 25
SEG20
SEG20 24
SEG21
23
SEG21
12 13 14 15 16 17 18 19 20 21 22
TO
BRIDGE
R933
CIRCUIT (P905A*)
270
D993
IN SCHEMATIC
B3AFA0000131
LED_VCC DIAGRAM - 9
LED_GND
Q900
R935
B1GBCFJN0033
560
LED DRIVE
TO
MAIN CIRCUIT
(CN303)
IN SCHEMATIC
DIAGRAM - 3
SC-HC25GS/GSX/GT/PU PANEL /
7 8 9
105
10 11 12
IR CIRCUIT
: +B SIGNAL LINE
P902A*
DGND 3
REM_IN 2
STDBY3.3V 1
R934
100
IR921
B3RAC0000017
REMOTE CONTROL SENSOR
OUT 1
DGND 2
VREF 3 C922
1
R920
47
DOOR SWITCH CIRCUIT
S641
OPEN
4 2
3 1
S643
CLOSE
4 2
P905B*
3 1
VREF- 1
POSITION (C) 2
POSITION (R) 3
BRIDGE CIRCUIT
CN901
8 TO
P905A*
IPOD_OPEN 1
DOOR SWITCH
VREF- 2 1 VREF- CIRCUIT (P905B*)
POS_SW_LEFT 3 2 POSITION (C)
IN SCHEMATIC
POS_SW_CENTRE 4 3
POSITION (R) DIAGRAM - 9
POS_SW_RIGHT 5
P903*
CD_LDSW 6
TO
M - 1 M-
7
MOTOR
1 M+ 8 2 M+
CIRCUIT (P904)
IN SCHEMATIC
DIAGRAM - 8
IR / DOOR SWITCH / BRIDGE / BUTTON CIRCUIT
10 11 12
13 14
A
B
C
D
E
F
G
H
13 14