Block Diagram - Panasonic SB-WA870EB Service Manual

8 Block Diagram

26 22 23 18
TO MAIN
(25) (19)
BLOCK
(JK2000) OF
SA-HT870EB/EG-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
DC DET
LOW-NOISE
SWITCH
OP AMP
Q520 Q503
INTERFACE
SWITCH
SWITCH
Q515,Q519
DCDET
SWITCH
B
Q517
VOLTAGE
REGULATOR
B B
6
19 2 18 1 (3)
IC601
SIGNAL LINES
: MAIN SIGNAL LINE
( ) Indicates Pin No. of Right Channel
85 11(12)
Q602
VOLTAGE
Q501,
B
REGULATOR
Q502
SWITCH Q601
VOLTAGE
B
REGULATOR
Q552~Q557
Q603
FAN
VOLTAGE
MOTOR
REGULATOR
DRIVE
M
Q512
VOLTAGE
B
REGULATOR
Q511
VOLTAGE
REGULATOR
B
RLY501
T502
B
D528
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.
15
SB-WA870EB / SB-WA870EG
IC501
RSN311W64B-P
POWER HIC
POWER CONTROL/PROTECTION CIRCUIT
24 13 9 14 7 21 4
B B
B
Q506
INTERFACE
SWITCH
D502
Q505
SWITCHING
D601
D597
B
B
D598,D599
Z501
F1
D602
16
JK501
SURROUND
SPEAKER
JK501
CENTRE
SPEAKER
SUBWOOFER
JK601
FRONT
SPEAKER
T501
JK500
AC INLET
L500
E500