Panel, Volume & Standby Circuit - Panasonic RX-D50EE Service Manual

16.9. PANEL, VOLUME & STANDBY CIRCUIT
1 2 3
SCHEMATIC DIAGRAM - 9
A
D
PANEL CIRCUIT
B
1 2 3 4 5 6
C
C903 220P
C904 220P
C905 220P
R901
15K
D
C909 C901
6.3V100 0.1
E
R995
82
R900
82
K904
0
C900
10V330 S903
TUNE MODE
R994
68
F
D992
R991 B3ACA0000264
68
R992
68
R993
68
MUSIC PORT
D993
B3ACA0000264
G
H
1 2 3
4 5 6
: +B SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
Z902
L5ACAYY00030
LCD
7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
44 43 42 41 40 39 38 37 36 35 34
IR901
SEG11
1 CS SEG11 33 B3RAB0000081
SEG12 REMOTE CONTROL SENSOR
2 RD SEG12 32
SEG13
3 WR [44] SEG0 [34] SEG10 SEG13 31
SEG14
[35] SEG9
4 DATA SEG14 30
SEG15
3 2
5 VSS IC900 SEG15 29
SEG16
6 VLCD C0HBA0000268 SEG16 28
SEG17
LCD DRIVER
7 VDD SEG17 27
SEG18
8 BZ SEG18 26
[22] SEG22
SEG19
COM0 [11] COM2 [23] SEG21
9 COM0 SEG19 25
COM1
10 COM1 SEG20 24
COM2
11 23
12 13 14 15 16 17 18 19 20 21 22
COM3
R911 R910 R909
4.7K 3.3K 2.2K
S904 S905 S909
REV FF SOUND
K905 R918 R917 R916 R915 R914
0 4.7K 3.3K 2.2K 1.5K 1.2K
S901
S910 S911 S912 S902
CD
OPEN/CLOSE STOP FM/AM
PLAY/PAUSE
4 5 6
7 8 9
ZJ902*
1 L+
TO SPEAKER (LCH)
3 L-
ZJ903*
TO
4 L+
MAIN CIRCUIT
3 L-
(CN4104)
2 R-
IN SCHEMATIC
1 R+
DIAGRAM - 3
ZJ901*
1 R+
TO SPEAKER (RCH)
3 R-
Q900
B1ADCE000012
1
POWER SUPPLY
R902
100K
C957 3300P
C910 1
R950
2.2K
C958 1
L900
J0JBC0000019
L901 ZJ900*
J0JBC0000019
10 DGND
9 KEY 1
8 KEY 2
TO
R906 470
7 LCD_DI
MAIN CIRCUIT
R904 470
6 LCD_CE
(CN2105)
R905 470
5 LCD_CLK
IN SCHEMATIC
4 SW_BU3.3V
DIAGRAM - 4
3 3.3V
2 RMT_P
1 RMT_ON
CN907*
1 KEY1
2
3 GND
ZJ909*
1 KEY2
3 GND
C955
3300P
7 8 9
71
10 11 12
B
E
VOLUME CIRCUIT
CN906*
KEY1 1
2
B GND 3
F STANDBY CIRCUIT
ZJ908*
KEY2 1
GND 3
RX-D50EE PANEL / VOLUME / STANDBY
10 11 12
13 14
A
B
C
D
R921
R920
1.5K
1.2K
C954 S907 S908
3300P VOL(-) VOL(+)
E
F
C956 S900
3300P STDBY
G
CIRCUIT
H
13 14