Panasonic SA-HT680PL Service Manual page 71

IC501
RSN311W64D-P
POWER AMP
15
20
3
+B
6
+B
POWER CONTROL CIRCUIT
D501
(19)18
- 12(11)
+
(25)26
- 1(2)
+
22
- 8
+
23
- 5
+
24
9
POWER CONTROL/
14
PROTECTION CIRCUIT
Q501,502
GND
OVER
13 16 21 10 4 7 LOAD
D502 DET.
-B -B
Q506 Q505
POWER POWER SUPPLY
SUPPLY CONT.
+B
FL6901
FL DISPLAY
FROM POWER
TRANSFORMER
4-17 36-21
2,1,40-29 12-14,16-28
6
X OUT
IC6901
C0HBB0000044
DISPLAY DRIVER
5
X IN
10 9 3 8 7 4 15
+B
-B
81 89 88 87
IC2018
C2CBJG000578
SYSTEM CONTROL
JK6901
Rch PHONES
JK501
+
SURROUND
SPEAKER
-
JK502
+
FRONT
SPEAKER
-
JK501
+
CENTER
SPEAKER
-
JK502
+
SUB
WOOFER
-
+B +B
Q507-510,
Q511
Q522,523
FAN
DC IN
MOTOR
DET.
DRIVE
+ -
M
FAN MOTOR
Q503
MUTING
Q520
+B
MUTING
CONTROL
D2001
KEY SWITCH
(S6909-6913,
KEY SWITCH
S6915-6917) (S6900-6908)
D6900
(POWER)
72 71 91 97 98
VSS VSS AVSS
14 64 96
SIGNAL LINES
: MAIN SIGNAL LINE : AM SIGNAL LINE
: FM SIGNAL LINE : AM OSC SIGNAL LINE
: FM OSC SIGNAL LINE : FM /AM SIGNAL LINE
( ) Indicates the Pin No. of Right Channel.
NOTE : Signal Lines are applicable to the Left Channel only.
IC2803
C0DBEZG00021
REGULATOR
D2809-2811,2831
4 2
+B VOUT V IN
5
VBIAS
GND
Q2805,2806,
6
D2808,2870
+B REGULATOR
IC8111
C0CBCBD00018
POWER SUPPLY
1 8
+B VOUT V IN
CONT GND
5 3
QR8111,8112
P.SUPPLY
+B
CONTROL
IC2802 IC2801
C0CBADG00023 C0DAAZG00012
REGULATOR DC-DC CONVERTER
3 1 2
+B
VOUT V IN VOUT
GND STBY
2 5
+B
D2819
+B
D2823
+B
D2037,2038
+B
+B
-B
-B
D2032
Q2025
DC IN
DET.
D2031
68
+B
19
SYNC
70
71
: DVD AUDIO SIGNAL LINE
: DVD VIDEO SIGNAL LINE
: CD-DA (AUDIO /VIDEO) SIGNAL LINE
T501
D511,512,
516,518
+B
D513-515,517
+B
Q524,D534
-B REGULATOR
1
VCC
GND
3
RLY501
Q2023,D2029
+B
REGULATOR
Z501
D2822
Q2803,2804,
D2804
REGULATOR/
STABILIZER
Q2814,D2824
Q515,519
REGULATOR
RELAY
DRIVE
FP2800
Q2809,D2818 D2812-2817
REGULATOR
Q2807,2808
REGULATOR
FL1
TO FL DISPLAY
(FL6901)
FL2
D2827
T502
Q517,D525
D528,599
REGULATOR
Q516
SWITCHING
(SYNC)
SA-HT680PL BLOCK DIAGRAM
SA-HT680PL
L500
F1
AC IN