Panasonic SB-WA920PP Service Manual page 40

26 22 23 18
TO MAIN
(25) (19)
BLOCK
(JK2000) OF
SA-HT920P/PC-S
A
SL(R)
C
FRONTL(R)
DC_DET
SW
HP_CNT
SUBAC1
SUBAC2
FL1
FL2
PCONT
SYNC
20
(21) 11
RSN312H24-P
POWER HIC
12
POWER CONTROL
CIRCUIT
15 20 3 6 1
(2)
D501
B B
FILTER
FILTER
FILTER
FILTER
B
IC502 D508
C0AABB000055
Q513,
Q514
DUAL
LOW-NOISE
OP AMP
Q520
INTERFACE
SWITCH
Q515,Q519
DCDET
SWITCH
B B
6
19 2 18 1 (3)
IC601
SIGNAL LINES
: MAIN SIGNAL LINE
( ) Indicates Pin No. of Right Channel
8 11(12)
Q501,
Q502
SWITCH
Q552~Q557
FAN
DC DET
MOTOR
SWITCH
DRIVE
M
Q503
VOLTAGE
B
REGULATOR
SWITCH
Q511
VOLTAGE
REGULATOR
B
RLY501
B
B
Q517
D528
VOLTAGE
REGULATOR
Q516
SYNC
SWITCH
7
D604
4
+VCC LOW
13
+DI SENS
14
-DI SENS
D603
5
-VCC LOW
Note : Signal Lines are applicable to the Left Channel only.
POWER CONTROL/PROTECTION CIRCUIT
5 24 13 9
B
Q506
INTERFACE
SWITCH
Q505
SWITCHING
Q602
VOLTAGE
B
REGULATOR
Q601
VOLTAGE
B
REGULATOR
Q603
B
VOLTAGE
REGULATOR
B
D598,D599
Q512
T502
Z501
D602
IC501
RSN311W64B-P
POWER HIC
14 7 21 4 16
B B
D502
JK501
SURROUND
SPEAKER
JK501
CENTRE
SPEAKER
SUBWOOFER
JK601
FRONT
SPEAKER
D601
T501
D597
JK500
AC INLET
L500
F1
E500