JVC TD-W254BK - User Manual

SERVICE MANUAL
DOUBLE CASSETTE DECK
No.4363B
Jul. 2001
COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.
TD-W254BK
TD-W254BK
Supplement
Area suffix
J
C
EN
U
U.S.A
Canada
Northern Europe
Other Areas
The transformer and the circuit board have already been changed
in issued model TD-W254BK (No.4363).
STANDBY / ON
POWER
REC/REC MUTE
PAUSE
COUNTER RESET
COUNTER RESET
PHONES
A B SYNCHRO DUBBING
NORM SPEED HIGH SPEED
PLAY
PLAY
MIN
MAX
1
2
5
3
4
6
INPUT LEVEL
MIN
MAX
1
2
5
3
4
6
7
8
9
INPUT LEVEL
TD-W254
ON
OFF
DOUBLE CASSETTE DECK
DOLBY B-C NR HX PRO
AUTO TAPE SELECTOR / CONTINUOUS PLAY
REVERSE MODE
DOLBY B NR
OFF C
B
B
REC/PLAYBACK
AUTO REVERSE
A
PLAYBACK
AUTO REVERSE
STANDBY
Please confirm this SCHEMATIC DIAGRAMS (No.4363BSCH) to the schematic diagram
and the circuit board.
Please refer to TD-W254BK (No.4363) for the content of the text.

JVC TD-W254BK Specifications

General

Brand	JVC
Model	TD-W254BK
Category	Cassette Player
Language	English

Summary

Service Manual Supplement

Block Diagram Overview

Standard Schematic Diagrams

Equalizer & Headphone Amp Circuit

Circuit diagram for equalizer and headphone amplifier functions.

Dolby Circuit & Power Circuit

Schematic for Dolby noise reduction and power supply sections.

Display & Mecha Control Circuit

Circuit diagram for display and mechanism control.

Printed Circuit Board Layouts

Main Board Layout

Layout and component placement for the main circuit board.

Power Supply Board Layout

Layout and component placement for the power supply circuit board.

Sub Boards and Components

Mechanism Control Board Layout

Layout and component placement for the mechanism control PCB.

Interface and Control Boards Layouts

Layouts for key switch, headphone jack, and indicator PCBs.

Parts List

Electrical Parts List - Main Board

Detailed component listing for the main circuit board (Block No. 01).

Electrical Parts List - Sub Boards

Detailed component listing for sub circuit boards (Block No. 02).