JBL JSR-400 - Receiver

39
Dolby Pro-Logic
Ò
A/V Receiver JSR-400
INTEGRATED CIRCUIT DIAGRAMS 4
Video PCB IC3
(TA7291S) Motor driver
REG
PROTECTOR
OUT2
GND
IN 1
V
CC
V
REF
IN 2
OUT1
V
S
3
519
28
2
6
M
OUT 1
H
L
L
IN 2
0
0
1
1
IN 1
0
1
0
1
OUT 2
L
H
L
MODE
STOP
CW/CCW
CCW/CW
BRAKE
INPUT
OUTPUT
CCW: Countrer Clockwise direction
CW: Clockwise direction
Main PCB - IC2, 3 (STK4192)
2 CH HIGH POWER AMP(50W+50W)
TR11
R8
TR3
TR14
TR13 TR12
R9
R2
R11
D1
TR10
16
7
18
1112
154141310953
7
1
2
86
R13
R10
TR1
TR2
R1
TR4
C1
R3
TR5
R4
TR6
TR6
TR7
TR7
R6
R6
D2
R12
C2
TR15
TR16
R16
TR19
TR20
D3
R15
TR18
TR17
RF
MIX
OSC
Buffer
REG AGC
DET
SD
ADJ.
LED
DRIVER
GND
V
CC
AM-IF
LEVEL
DIT
LEVEL
DIT
21
18
19
22 20 16 14
8
12
9
10
4
7653211517
OD
POST
AMP
FM-IF
S 1-7
Tuner PCB IC3 - (LA1265) AM/FM IF
1311