Sanyo JA 250 - User Manual

SERVICE
MANUAL
PWER
AMPLIFIER
JA 250
(EUROPE)
This
is
a
service
manual
for
mode!
JA250
and
only
items
changed
from
model
JA300
are
indicated.
For
other
items,
refer
to
Service
Manual
for
model
JA300
(WM-8507).
#
mark
represents
a
non-interchangeable
part.
(PACKING & ACCESSORY)
141-6-133T-38802
141-6-133T-46
100
Individual
Carton
=
141-6-410T-81802
141-6-410T-93100
Instruction
Manual
#
(CABINET)
,
1
141-0-122T-46500
141-0-122T-46501
Front
Panel
Assy
#
3
141-2-163T-91900 141-2-163T-91930
Rotary
Knob,
Function
#
4
141-2-163T-81730
141-2-163T-81740
Rotary
Knob,
Volume
#
6
141-2-160T-09700
141-2-160T-09701
Push
Button
#
7
141-2-160T-16500
141-2-160T-16501
Push
Button,
Power
SW
#
(CHASSIS)
13
141-2-126T-41302
141-2-126T-41307
Back
Lid
_
#
25
141-2-453T-01701
(Not
used)
Washer
3x10
x
Imm
)
(Add) 141-2-421T-43900 Special Screw
Add this sheet to Model JA300 Service Manual.
SANYO ELECTRIC TRADING CO., LTD.
33, Hoyoshi-cho 2-chome, Moriguchi-shi, Osaka-fu, 570 Japan.
Apr./'83/2000
KA
Printed
in
Japan
WM-9992

Summary

SPECIFICATIONS

DISMOUNTING OF CABINET AND FRONT PANEL

TO DISMOUNT CABINET

Steps for removing the cabinet assembly.

TO DISMOUNT FRONT - PANEL

Steps for detaching the front panel components.

ADJUSTMENT OF BIAS

CONDITIONS

Required settings for volume, knobs, and buttons before bias adjustment.

EXPLODED VIEW

PARTS LIST

PACKING & ACCESSORY

List of packing materials and accessories for the unit.

CABINET

Components related to the unit's exterior cabinet assembly.

ELECTRICAL PARTS

Key electrical components like transformers, fuses, and sockets.

MAIN AMP P. C. B. ASSY

List of components for the main amplifier printed circuit board.

SCHEMATIC DIAGRAM

WIRING DIAGRAM

IC BLOCK DIAGRAM

Sanyo JA 250 Specifications