Read Panasonic RQ-SX79GK / RQ-SX79GD Service Manual online
IC4
C0EBD0000066
RESET
R37 4.7K
C59 68P
C58 68P
X1
(800kHz)
R29
470K
R28 1M
R27 680
10K
IC6
C0DBAFD00011
REGULATOR
1
2
3
V OUT Vss
V IN
2
1
CONT
Vss
2.2K
47K
9
10
11
12
13
14
15
16
8
7
6
5
4
3
2
1
32
31
30
29
28
27
26
25
17
18
19
20
21
22
23
24
REV
REEL F
TPS
BEEP
XBS OFF
MUTE
BATT.F
REST
CN
Vss
X
OUT
XI
N
Vss
V
DD
VDCE
DISCHARGE
REMOTE
POWER OFF
MOTOR
START
M.CCW
SPEED
P-SOL
FWD/
REV(LO)
T.
PLS-C
P
ARA-L
O/P
DOLBY
I/O
BA
TT
.E/
S-XBS
BA
TT
.M/
DOLBY
Q2
UNR521500L
SWITCHING(TPS)
D4
D5
D6
LTSTCSX79
I
H
M
D
R31
470K
C61 0.1
RESET
J
K
L
B
E
Q3
2SD1819ASL
TAPE END DET.
Q1
TAPE END DET.
D7
MA2S72800L
C67
1
IC3
C2ABDB000073
SYSTEM CONTROL
TP17
Z1
CNB1002002AU
3
4
1
2
L2
100
H
C69 4V22
2.3V
2.3V
2.3V
0V
0V
0.5V
0.2V
1.3V
0.7V
2.3V
1.1V
2.3V
2.3V
1.3V
0V
0V
1.8V
2.3V
2.3V
0.5V
2.3V
2.3V
1V
1V
1.3V
2.1V
0V
2.1V
2.1V
2.1V
0V
2.3V
1.1V 1V
2.3V
1.2V
2.3V
2.3V
2.3V
0.8V
2.4V
P-P
F=800kHz
(FF)
1.8V
P-P
F=800kHz
(FF)
1.5V
UNR511M00L
ELJPA121KF
LTSTCSX79
(BATT.E/S-XBS)
LTSTCSX79
(BATT.M)
(BATT.F)
SET KEY
PARA I/P
BATT I/P
OPEN
FWD
SW3
(MECHANISM DET
.
FWD/STOP/REV)
FWD
STOP
REV
S1
(OPEN
DET
.)
R45 470K
3
VOUT
R47
330K
C54 4V22
TP12
VDD O/P
2.3V
TP11
TP10
TP14
TP15
TP43
TP13
Q6
SOL1
R46
100
SOLENOID DRIVE
1.5V
B1ADMB000003
1.3V
0V
B
C
D
A
F
12 13 14 15 16 17
RQ-SX79(GK/GD) CIRCUIT DIAGRAM
R39 0
A
SCHEMATIC DIAGRAM-3
+ B Voltage Line
Playback Signal
MAIN CIRCUIT
E
R72 100
R73 100
R74 100
0V
0V
14
RQ-SX79GK / RQ-SX79GD
Click on the first or last page to see other RQ-SX79GK / RQ-SX79GD service manuals if exist.