Sanyo JJ-P4 - User Manual

SERVICE MANUAL __
Ju
P4
(WEST
GERMANY)
STEREO CASSETTEPLAYER
PRODUCT CODE No.
142473 26 (Black) |
142 473 27 (White)
142 473 28 (Red)
SPECIFICATIONS
PowerSource
Wow
&
Flutter
.....
Pattneteees
weesees
0.6%,
RMS
DG
sath
dd
eenceaeniecnar
atest
1.5V
Frequency
Response
(P/B
Dolby
OFF)
|
Ni-cd
battery
..................0e
eee
NB-450
F208
00...
.cceeeeeeeeenereereesteres
638HZ~
10,000HZ
or
(UM-3,
HP
7,
AA
Cell,
Mignonzelle,
R
6)
x
1
Signal
to
Noise
Ratio
(w/Fe2O03)
...
More
than
42dB
Output
Power
.............0ceeeeeeee
es
3.5mW
x
2
(Max.)
Crosstalk
(w/Fe2O03)
Current
Consumption
(at
Vol.
Min.)
TRACK
10
TRACK
5
3.
seus
ceerenens
More
than
50dB
Playback
mode
.............0ceeeees
180mA
Channel
Separation
(w/Fe2O3)
....
More
than
20dB
Fast
Forward/Rewind
mode
......
300mA
Hum
&
Noise
(at
Vol.
Min.)
..........
—70dBs°
Tape
SOGCG"
35565
ceiir
ees
tcdsteeeees
ts
1-7/8ips.
£3%
.
Terminal
Impedance
ae
Fast
Forward/Rewind
Time.........
200sec.
(with
C-60)
Headphones
.............esceeeeeees
~8~
1000.
Torque
fe
8
PIAVDAOK
ntewaiciteirteseeoneentuses
25
~
40g-cm
|
Dimensions
(Max.)
........
69.8(W)
x
104.5(H)
x
18.5(D)mm
Fast
Forward/Rewind
.............
More
than
45g-cm
Weight
(w/o
batteries)
.............
2.
138g
—Specifications subject to change without notice.—
A47500
REFERENCE
No.
WM-21014

Summary

Specifications

Disassembly Instructions

General Remarks for Disassembly

Important precautions before beginning the disassembly process.

Cabinet Bottom Removal

Procedure for removing the lower part of the player's cabinet.

P.C. Board Removal

Steps for detaching the main printed circuit board.

Frame Removal

Instructions for removing the internal frame of the unit.

Cassette Lid Removal

Guide to removing the lid covering the cassette compartment.

Adjustment Procedures

General Remarks for Adjustment

Key precautions before performing any calibration.

Equipment Required for Adjustment

List of necessary tools and test equipment for adjustments.

Parts List

Cabinet Exploded View

Mechanism Parts List

Mechanism Exploded View

P.C. Board Parts List

IC & Transistor Lead Identification

P.C. Board & Wiring Diagram

Schematic Diagram

Reference Voltages

Sanyo JJ-P4 Specifications

General

Type	Cassette Player
Brand	Sanyo
Model	JJ-P4
Battery Type	AA
Number of Batteries	2
Signal-to-Noise Ratio	50 dB