DOWNLOAD Panasonic RQ-SX59EG / RQ-SX59EB Service Manual ↓ Size: 1.29 MB | Pages: 21 in PDF or view online for FREE

Model
RQ-SX59EG RQ-SX59EB
Pages
21
Size
1.29 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / MINI CASSETTE
File
rq-sx59eg-rq-sx59eb.pdf
Date
PREV: Panasonic RQ-SX58VGC / RQ-SX58VEG / RQ-SX58VEG1 Service Manual / Supplement

Panasonic RQ-SX59EG / RQ-SX59EB Service Manual ▷ View online

4.15. Notice for assembling the rear
cabinet ass’y
5 Check Point of Signal
6 Block Diagram
IC2
JK1
HEADPHONE
IC3
SYSTEM
CONTROL
IC1
MOTOR
DRIVE
MOTOR
M
BATT.
PRE
AMP
PLAYBACK
HEAD
POWER
AMP
IC5
DC-DC
CONV
Q10,11
Z1
TAPE
END
DET.
VR2
(VOLUME)
VR1
(TAPE SPEED ADJ.)
TP42
+B
2.7V
TP98
TP6,7
(
TP8,12
)
IC4
RESET
TP98
Q12,13
Z2
MODE
TP44
TAPE
Q8
DRIVE
MOTOR START
 Break
Control
Q2,Q3,Q4
RQ-SX59 Block Diageram
Notes
   (      ):Indicates pin No. Right channel.
:Playback signal line.
IC7
REGULATOR
7 Schematic Diagram Notes
     ·    This schematic diagram may be modified at any time
with the development of new technology.
Notes:
SW1:
Cassette half detect switch. (IN...ON, OUT...OFF)
SW2:
S-XBS/A-B REPEAT switch.
SW4:
HOLD switch in “OFF” position.
SW5:
MAIN switch (
/
).
SW6:
REW/- switch.(REW)
SW7:
FF/+ switch. (FF)
VR1:
Tape speed adjustment VR.
VR2:
Volume control VR. (VOLUME)
     ·    DC voltage measurements are taken with electronics
voltmeter
     ·    From negative terminal of battery. No mark...Fast Forward
(FF) mode.
Current consumption of tape playback (FWD)
     ·    Volume VR MAX......49mA.
Volume VR MIN.......42mA.
     ·    Signal line
: Positive voltage line
: Playback signal line
9
RQ-SX59EG / RQ-SX59EB
8 Schematic Diagram
REV
FWD
FWD
REV
R ch
L ch
PLAYBACK
HEAD
1
8
7
6
4
5
3
2
1
6
5
3
4
2
1
6
5
3
4
2
FWC1
C12 680P
C8 680P
C7
680P
C3
680P
TP6
TP18
TP8
TP7
TP4
x
y
A
B
C
D
E
MM1279XVBE
MOTOR DRIVE
V
PV
PW
U
W
PU
GND
GND
OSC
Vcc
DR
FC
VREF
TC1
START
TC2
V
DD
RI
IN+
OUT
1
2
PRE
DRIVER
START UP
CONTROL
SOFT
SW
OUTPUT
BIAS
CONTROL
CURRENT
CONTROL
SPEED
CONTROL
START UP
LOGIC
START UP
DECILLATOR
REFARENCE
FWR/REV
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
ERROR
AMP
C36
0.01
C37
0.01
C40 0.47
C41
0.22
C42
0.1
R28
100
R29
12K
C43
4V3.3
VR1
R26 10K
R25
5.6K
D2
MA2SD1000L
R27 15K
C39 0.1
C35 0.01
1.5V
0V
1.4V
0V
1.4V
0.6V
1.5V
0.7V
1.4V
0.7V
1.4V
0.7V
1.4V
0.2V
0V
0.5V
1V
0.3V
0.3V
IC1
V
U
W
VCC
1
2
5
4
3
7
6
R30
270
Q2
B1ADMB000003
R31
270
R32
270
Q3
Q4
Q6
UN511LTX
z
Q2,3,4
V
U
W
TP1
TP3
TP2
4.7K
4.7K
TP9
10K
RRN3A08B14W
A
4.7K
R61 8.2K
TP10
TP5
BREAK CONTROL
BREAK CONTROL
B
A
MAIN CIRCUIT
   Schematic Diagram-1
 + B Voltage Line
 Playback Signal
HEAD CIRCUIT
M
MOTOR
Q5
UN5216RTX
BREAK CONTROL
Tape Speed
Adjustment.
1.5V
1.5V 1.5V
1.5V
1.5V
1.5V
3.4V
3.4V
3.4V
3.8V
2.3V
2.3V
0
0
0
A
B
C
D
E
F
G
H
1
2
3
4
5
6
RQ-SX59(EG/EB) CIRCUIT DIAGRAM
C45
KB680P
10
RQ-SX59EG / RQ-SX59EB
Q1
C17
6.3V  
 10
PRE
OUTB
MTL
DRVA
MTL
DRVB
MTL
 DR
V
PRE
OUTA
PRE
NFA
INA-R
PRE B
INB-R
VREF
OUT
PRE A
INB-F
INA-F
V
ref
    IN
VREF
GND 
PRE
SW
M/N
SW
SW
PRE
SW
F/R
SW
BST
SW
PW
SW
MT
OUT
AMS
BEEP
BEEP
TC
MT
 SW
C-AMP DET
AGC 
DET
AGC
IN
BST NF
BST OUT
+
BST
ATT
PW INC
LPF
EQ A
PW C
PW NFA
PW INA
PW INB
+
PW B
PW
NFB
EQ
 B
RF IN
PW 
GND
OUT
 B
OUT
 C
OUT
 A
VCC
VCC
FIL
TER
RIPPLE
RF OUT
BASE
GND
DET
AMS
MIX
+
AMS
MIX
AMS 
SW
AMS
IN
PRE
NF B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
C OMP
+
PW 
A
+
R9   3.9K
R8
3.9K
C10
   0.1
C6   4V22
C1
1
 0.1
C13  0.01
R1
1
2.7K
R12
22K
R13
220K
C15
R14
18K
C14
  0.0039
C18  4V22
R16  150K
R15  470K
R17
3.9K
R18
 2.2
C31
 0.47
R19  
 2.2
  C32
  0.47
C34   1.0
   C29  
  0.001
  C28  
0.001
   C26  
 0.012
  0.012
  C27  
  0.22
C24  0.33
 C30  
 0.33
C23  10V3.3
+
R21  
C22  0.1
R20
150K
C21
16V 2.2
C20   1.0
C16  4V6.8
 C1   1.0
 C2   1.0
R1  270
 C4  
4V22
 R2 
1.5K
R3 7.5K
0.022
 R7
220K
C9
  0.022
R6  7.5K
 R4
R5  22K
R10
220K
IC2
EVUTXBB06A54
VR2-2
EVUTXBB06A54
VR2-1
C55  4V47
2SB815B6TB
POWER 
SUPPLY
 C19
4V4.7
C44
 0.1
B
C
A
d
e
x
h
g
     Q8
UNR511400L
MOTOR START DRIVE
H
D
[1.5V]
A
B
C
D
E
 C33   1.0
j
[1.5V]
[1.5V]
[1.5V]
TA2123AF
 PRE/AMS/
POWER AMP
0.7V
0.7V
0.7V
0.7V
0.7V
0.7V
0.4V
0.4V
0.7V
0.7V
0.7V
0.7V
0.7V
0.7V
1.4V
0.9V
1.5V
0.6V
0.6V
0.6V
0.6V
0.6V
1.4V
0.7V
0.7V
0.7V
0.7V
0.7V
0.7V
0.7V
0.7V
0.7V
0.7V
0.7V
0.4V
1.5V
2.2V
0.8V
0.8V
0V
0.9V
1.4V
1.5V
1.5V
TP63
TP64
TP65
C5
1.5K
4.7K
Lch
COM
Rch
  0.1
2.2K
47K
0V
0V
d
w
TP12
TP26
TP39
   C25
TP51
TP68
TP34
TP54
R62
470K
TP29
TP11
TP73
50K(A)
50K(A)
0V
A
1.5V
7
8
9
10
11
12
RQ-SX59(EG/EB) CIRCUIT DIAGRAM
MAIN CIRCUIT
   Schematic Diagram-2
 + B Voltage Line
 Playback Signal
BASE
RF OUT
VCC
TPS
POWER MUTE
POWER OFF
FWD/REV
(RF OUT)
  C70  
KB0.022
  C71  
KB0.022
Q17
FMG8AT148
S
Q18
UNR511400L
C60
0.068
C61
0.068
SWITCHING
REV/FWD SWITCH
0V 0V
0V
0V
0V
0V
2.7V
0V
11
RQ-SX59EG / RQ-SX59EB
R46 4.7K
C47   68P
C46   68P
X1
(800kHz)
R36
220K
R35 680K
R34 560
2.2K
47K
6
5
3
2
4
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
TAPE
OPEN
CAM
MODE
REEL  F.
TPS
BEEP
XBS.OFF
MUTE.
REST
CN
Vss
X
OUT
XI
N
Vss
V
DD
VDCE
DISCHARGE
A IN1
A IN2
REMOTE
POWER OFF
MOTOR
START
BRK
CAM-CTL
FWD/
REV
T.
PLS-C
.
S-XBS.
LTSTC170CKTP
(OPR./BATT)
D5
(S-XBS)
d
D
C53   0.1
R49 470K
C51
 1.0
R51 536K
R55
680K
R33 100K
R50
1.5K
R58 560K
SW4
(HOLD)
SW6
(REW/-)
SW7
(FF/+)
R52 9.1K
R53 10K
R54 150K
h
e
y
z
j
Q13
2SD1819ASTX
TAPE MODE
R38
470K
Q12
UNR511400L
Q11
2SD1819ASTX
T
APE END DET
.
Q10
UNR511400L
TAPE END DET
A
B
TP42
Z1
3
4
1
2
OFF
C
O
N
C50
2.5V 150
C49
270P
SW1
(T
APE
DET
.)
SW2
S-XBS/A-B 
REPEAT
SW5
(
/
)
[2.3V]
2.3V
1.3V
2.3V
2.3V
0V
0V
0.5V
0.2V
1.3V
0.7V
2.3V
2.3V
1.3V
0V
0V
1.8V
2.3V
2.3V
0.5V
2.3V
1V
1V
1.3V
2.1V
0V
2.1V
2.1V
2.3V
1.1V 1V
2.3V
IC4
C0EBD0000066
RESET
1
2
3
V OUT Vss
V IN
RESET
2.3V
2.3V
2.4V
P-P
F=800kHz
(FF)
1.8V
P-P
F=800kHz
(FF)
[1.5V]
C
R59
4.7
H
g
R41 33K
R40
33K
R39
270K
2SD1819ASTX
OPER/BATT
CCW
Q9
B3ABB0000165
R43
680
R42
680
 R47
470K
R41
15K
ESE1
1MV1T
RSS2A010-1A
Lch
Rch
COM.
TEST
TP62
TP61
TP98
TP79
R37 560
Z2
3
4
1
2
R44
1M
TP91
1
RJJ36TK03-1C
w
R67 47K
TP25
TP52
TP53
TP45
TP46
TP49
TP88
TP43
TP72
TP75
TAPE MODE
1
2
S1
K1MZ02B00002
A
JK1
HEADPHONES
(
3.5)
BATTERY CASE
BATTERY
"AA" SIZE
(R6/LR6)1.5V
RECHAREABLE
BATTERY 1.2V
0V
3.4V
0V
0V
0.5V
0V
0V
A
B
C
D
E
F
G
H
RQ-SX59(EG/EB) CIRCUIT DIAGRAM
13
14
15
16
17
18
D4
2.3V
TP44
MAIN CIRCUIT
   Schematic Diagram3
 + B Voltage Line
 Playback Signal
TEST
GND
SIG
BATT CHK.
R60 680K
R56
680K
IC6
C0DBAFD00011
REGULATOR
2
1
CONT
Vss
D7
MA2SD2800L
C67
1
C69 4V22
2.3V
3
VOUT
4V22
TP12
VDD O/P
2.3V
L2
100
H
ELJPA121KF
C54
R48 390K
R64
15
Q14
B1ADJB000001
VOLTAGE
COMPARATOR
1.2V
0V
1.5V
R68 100K
R69 390K
10K
Q15
2.7V
UNR511400L
  SWITCH
1.7V
2.7V
R66
  1M
R57
680
R45
82
3
1
V OUT
VIN
Vss
2
3
IC7
C0EBC0000034
RESET
2.2K
47K
R63 8.2K
Q16
UNR521300L
  SWITCH
R65
100K
Q7
B1DFCC000008
    SWITCH
1.5V
1.5V
2.7V
1.2V
1.5V
1.5V
S
ICP1
K5H5012A0025
IC3
C2ABDB000069
SYSTEM
0V
12
RQ-SX59EG / RQ-SX59EB
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