Jvc PC 55 LB Service Manual

Page 2

O
(C-55 L/LB/LD

2

Contents

Features
Specifications .
Connections (1) .
Connections (2) .
Various Usages .............................
Names of Controls and Connection Ter
Main Parts Location .
Safety Precautions
Description of New Technology ..
Microcomputer ..........
Removal of Main Parts .
How to Engage Dial Cord.
Main Adjustment ...........
Adjustment Location of Cassette Amplifier
Electric Circuit Adjustment
Block Diagram .................
Wiring Connections (1)

(Receiver Circuit) ................................................ 27
Standard Schematic Diagram of P055

(Amplifier Circuit) ............................................... 28
Wiring Connections (2)

(Cassette Deck Circuit) ........................................ 29
Standard Schematic Diagram of PC-55

(Tuner Circuit) .................................................... 30

Standard Schematic Diagram of P055
(Signal Function Circuit)
Standard Schematic Diagram of PC-55
(Mecha Control Circuit) ........................................ 32

..31

Features

1. Complete stereo component system in a single box
consisting of 4 units: a receiver, a stereo cassette deck
and a pair or speakers.

° Compactness and light weight permit use any,
where.

2. Metal tape compatible deck with the FINE AXIS
REVERSE system.

Head rotary reverse system with 3~|ayer diecast
configuration.

3. Two-motor full logic mechanism.

. Exclusive motor for the mechanical drive.

4. Multi~function digital counter.

0 4~digit electronic counter with 2-point memory for
the block repeat facility.

0 Tape remaining time is indicated for both A and B
sides.

C Usable as a stopwatch showing the elapsed time in
recording and playback,

- Usable as an electronic clock with quartz lock.

Built-in timer.

- Music scan is indicated for up to 20 selections.
Under license of Staar S.A., Brussels Belgium".

5. Color LCD. (Liquid Crystal Display) multiscreen.

0 Concentrated indication of the reverse mode, level
meter, NR system and type of tape being used etc.,
besides the multidigital counter.

(No. 15 25)

Page
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.35
.36
.37
.38
.38
.39
.39
.42
.43

Tuner P.W.Board Parts ......
Tuner P.W.Board Parts List .
Signal Function P.W.Board Parts .
Amplifier P.W.Board Parts ..........
Signal Function P.W.Board Parts List
Power Amplifier P.W.Board Parts List
Power Supply P.W.Board Parts List ..
Other P.W.Board Parts List
Amplifier P.W.Board Parts List .
Mecha Control P.W. Board Parts
PC-55 Speaker Box ................
Enclosure Assembly and Electrical Parts

(Casstte Deck Parts) ........................................... 44
Enclosure Assembly and Electrical Parts List

(Cassette Deck Parts) ...................................... 45
Enclosure Assembly and Electric Part List

(Receiver Parts) ............................................... 45

Enclosure Assembly and Electrical Parts
(Receiver Parts)
Mechanical Component Parts

...47
.48

Mechanical Component parts List .. 49
Maintenance .. 50
Packing List . 50
Packing(1) .. .51
Packing (2) 51
Accessories Back Cover

. Built~in DOLBY* B/C NR (Noise Reduction) circuit.

. AUTO REC MUTE mechanism.

. SLEEP mechanism.

. Multi music scan mechanism lets you skip up to 20
selections in forward or reverse direction.

- CUE/REV facility also provided.
10. Microphone mixing facility.
11. Total output of 54 W(27 W + 27 W) max. (69, AC).
Music power 100 W (50 W + 50 W) (6 9, AC).

12. 5-element SEA. Graphic Equalizer incorporated.

' Compensates for room acoustics and characteris»
tics of individual components.

13. Headphones jacks are provided on the receiier and

deck sections.

14. PHONO, AUX jacks provided.

15. 2~way speaker systems -12 cm woofer ani 5 cm

tweeter bass-reflex type,
. High ceramic cone is used for the wooler and
tweeter.

16. 4-way power supply (AC, Batteries, Rechargeaole bate

tery pack and car battery),

*Dolby C type noise reduction system is manufact UI'Ed
under license from Dolby Laboratories Licensing Corpora-
tion.

*"Dolby" and the double-D symbol are trademarks 0f
Dolby Laboratories Licensing Corporation.

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