Sharp cd ba 150 service manual 1

Page 1

CD-BA150

SHARP SERVICE MANUAL

No. S1003CDBA150/

CD-BA150

COMPACT CD-BA150 Mini Component System consisting ofCD-BA150
@D§@ (mini unit) and CP-BA150 (speaker system).
- In the interests of user-safety the set should be restored to its
DIGITAL AUDIO original condition and only parts identical to those specified be
used.

/- CONTENTS %

IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY)
SPECIFICATIONS
NAMES OF PARTS ..
OPERATION MANUAL.
QUICK GUIDE
DISASSEMBLY ..
REMOVING AND REINSTALLING THE MAIN PARTS ..
ADJUSTMENT ...................................
NOTES ON SCHEMATIC DIAGRAM
WAVEFORMS OF CD CIRCUIT.

BLOCK DIAGRAM ...................... 15
SCHEMATIC DIAGRAM / WIRIN .18
VOLTAGE .............................................. 34

TROUBLESHOOTING (CD SECTION) .
FUNCTION TABLE OF IC
FL DISPLAY .....................
REPLACEMENT PARTS LIST/EXPLODED VIEW
PACKING OF THE SET (FOR U.S.A. ONLY)

-
This document has been published to be used

SHARP CORPORATION for after sales service only.

The contents are subject to change without notice.

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CD-BA150

TO THE OPERATION MANUAL.

FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER

IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY)

BEFORE RETURNING THE AUDIO PRODUCT

(Fire & Shock Hazard)

Before returning the audio product to the user. perform the

following safety checks.

1. Inspect all lead dress to make certain that leads are not
pinched orthat hardware is not lodged between the chassis
and other metal parts in the audio product.

2. Inspect all protective devices such as insulating materials,
cabinet, terminal board, adjustment and compartment covers
or shields, mechanical insulators etc.

3. To be sure that no shock hazard exists, check for leakage
current in the following manner.

* Plug the AC line cord directly into a 120 volt AC outlet.

Using two clip leads. connect a 1.5K ohm, 10 watt resistor

paralleled by a 0.1 SuF capacitor in series with all exposed

metal cabinet parts and a known earth ground. such as
conduit or electrical ground connected to earth ground.

* Use a VTVM or VOM with 1000 ohm per volt, or higher,

sensitivity to measure the AC voltage drop across the

resistor (See diagram).

Connect the resistor connection to all exposed metal parts

having a return path to the chassis (antenna, metal cabinet,

screw heads, knobs and control shafts, escutcheon, etc.)
and measure the AC voltage drop across the resistor.

éfi\

VTVM
'0 AC SCALE 0'

1.5k ohms
10W

015uF

TEST PROBE CONNECT TO
KNOWN EARTH
GROUND

TO EXPOSED
M ETAL PARTS

All check must be repeated with the AC line cord plug connection
reversed.

Any reading of 0.3 volt RMS (this corresponds to 0.2 milliamp.
AC.) or more is excessive and indicates a potential shock
hazard which must be corrected before returning the audio
product to the owner.

SPECIFICATIONS

CD-BA150

0 General

Power source: AC 120 V, 60 Hz

Power consumption: 105 W

Dimensions: Width; 10-5/8" (270 mm)
Height; 13" (330 mm)
Depth; 14-6/8" (375 mm)

Weight: 13.6 lbs. (6.2 kg)

0 Amplifier section

Output power: 50 watts minimum RMS per

(Except for Canada) channel into 6 ohms from 60
Hz to 20 kHz, 10 % total har-
monic distortion

Output power: RMS; 100 W (50 W + 50 W)
(for Canada) (10 % T.H D)
Output terminals: Speakers; 6 ohms

Headphones; 16-50 ohms
(recommended; 32 ohms)

Input terminals: Video/Auxiliary (audio signal);
500 mV/47 kohms

0 Compact disc player section

Type: 3-disc multi-play compact
disc player

Signal readout: Non-contact, 3-beam semi-
conductor laser pickup

D/A converter: 1-bit D/A converter

Frequency

response: 20 - 20,000 Hz

Dynamic range: 90 dB (1 kHz)

0 Tuner section

Frequency range: FM; 875-108 MHz
AM; 530-1,720 kHz

0 Cassette deck section

Frequency response: 50-14000 Hz (Normal tape)
Signal/noise ratio: 55 dB (TAPE 1; playback)

50 dB (TAPE 2, recording/playback)
Wow and flutter: 0.3 % (WRMS)

CP-BA150

0 Speaker section

Type: 3-way type [3-15/16 (10 cm) woofer,
3-15/16" (10 cm) woofer and 2"
(5 cm) tweeter]
Maximum input power: 100 W
Rated input power: 50 W
Impedance: 6 ohms
Dimensions: Width; 9-1/8" (231.5 mm)
Height; 13" (330 mm)
Depth; 8-1/4 (210 mm)
Weight: 6.8 lbs. (3.1 kg)/each

Specifications for this model are subject to change without
prior notice.