Volume, Music Port, Remote Sensor & Mic Circuit - Panasonic SA-VK880EE-K Service Manual

18.4. Volume, Music Port, Remote Sensor & Mic Circuit
1 2 3
SCHEMATIC DIAGRAM - 12
A
F
VOLUME CIRCUIT
Q6511
B1GBCFJN0033
VR6500
R6511
LED DRIVE
EVEKE2F3524M
0
VOLUME JOG
D6511
B
B3AEA0000107 B3AEA0000107
VOL LED (TOP) VOL LED (BOTTOM)
3 2 1 R6501
R6503
12K
10K
R6502
22K
C6503
1000P
C
R6308 R6307 R6306 R6305 R6304 R6303 R6302
4.7K 2.7K 0 2.2K 1.8K 1.2K 1K
D
G
MUSIC PORT CIRCUIT
E
DGND_C
MP_SW
MP_L
CN6807
F 10
DGND 1
EJECT 2
B
PA_IN_R 3
TO
PA_IN_GND 4
MAIN CIRCUIT
PA_IN_L 5
(CN2806)
PA_SW 6
IN SCHEMATIC
HP_SW 7
DIAGRAM - 7
HP_R 8
HP_GND
HP_GND 9
HP_L
HP_L 10
1
G
S6820
OPEN
B
TO
ZJ6801*
MAIN CIRCUIT
(CN2812) 2
1
IN SCHEMATIC
H
DIAGRAM - 9
1 2 3
4 5 6
: +B SIGNAL LINE
R6512
560
D6512
DVREF+_B
J6501B*
J_VOLA_2
1 VOL_LED
C
2 DVREF+
TO
3 KEY3
PANEL CIRCUIT
LED_GND_B
4 LED_GND
(J6501A*)
LED_SUPPLY_B
5 LED_SUPPLY
IN SCHEMATIC
6 STOP
DIAGRAM - 11
DGND_B
7 DGND
J_VOLA_2
8 J_VOLA
R6301
1K
R6208
6.8K
: MUSIC PORT AUDIO INPUT SIGNAL LINE
: AUDIO OUTPUT SIGNAL LINE
JK6810
5
L6851
C6851
J0JBC0000019
0.1
4
L6811 R6811
C6811
J0JBC0000019 0
1
3
R6812 C6812
0
1 MUSIC PORT
MP_R 2
L6812
J0JBC0000019 1
6
MP_GND
7
HP_SW
JK6800
HP_R
5
C6863 L6863
0.1 J0JBC0000019
4
L6801
J0JBC0000019
3
HEADPHONE
2
L6802
J0JBC0000019
1
6
C6861
1000P
7
4 5 6
7 8 9
I
MIC CIRCUIT
: +B SIGNAL LINE
L6864
J0JBC0000019
L6000
JK6002
J0JBC0000019
5
4
L6003
R6004
J0JBC0000019
680
2
MIC 2
3
K6012
0
7 R6006
560
8
1
O
TO
ZJ6002*
AC INLET CIRCUIT
C6012
L6002
2 0 1
(ZJ5702)
1
IN SCHEMATIC
C6013
DIAGRAM - 18
100P
VR6001
EVUE27FK2B53
MIC VOL JOG
5
4
R6005
680
2
K6013 3 2 1
MIC 1
0
3
7
8 C6007
2.2K
L6007
J0JBC0000019
1
JK6001
H REMOTE SENSOR CIRCUIT
Z6601
B3RAB0000025
REMOTE CONTROL SENSOR
C C
J6001B*
TO
PANEL CIRCUIT DGND 3
1 2 3
(J6001*) VREF+ 2
IN SCHEMATIC
RMT 1
DIAGRAM - 11
SA-VK880EE
7 8 9
134
10 11 12
: -B SIGNAL LINE : MIC AUDIO INPUT SIGNAL LINE
C6000
50V1
IC6000
R6007
C1AB00003130
470
MIC AMPLIFIER
GAIN1 IN
1 14
GAIN2
2
GAIN_SW 13
C6011
C6017 DET INT
3 12 1
1
R6011
OUT
4 11
SENSE
47K
BUFFIN
C6005 5 VREF 10
50V1 BUFFGAIN V+ C6010
6 9
10
R6009 BUFFOUT
7 8
100 GND C6006
1
C6009
1 DGND
1
2 MIC_SW
C6106 1
C6008 NC
3
1
4 A_GND
MIC_D
5 MIC
6 +9V
7 NC
: +B SIGNAL LINE
VOLUME / MUSIC PORT / REMOTE SENSOR / MIC CIRCUIT
10 11 12
13 14
A
B
C
D
CN6702
C
TO
PANEL CIRCUIT
(ZJ6601*)
IN SCHEMATIC
DIAGRAM - 11
E
F
G
H
13 14