Sharp cd xp 700 service manual

Page 1

CD-XP700/CD-XP7700

SHARP SERVICE MANUAL

No. $2212CDXP700/

MINI COMPONENT SYSTEM

MODEL CD-XP700

CD-XP700 Mini Component System consisting of CD-XP700
(main unit) and CP-XP700 (speaker system).

MINI COMPONENT SYSTEM

MODEL CD-XP7700

CD-XP7700 Mini Component System consisting of CD-XP7700
(main unit) and CP-XP7700 (speaker system).

Illustration: CD-XP7700

- In the interests of user-safety the set should be restored to its
@CDMPACT original condition and only parts identical to those specified be

use up may

DIGITAL AUDIO

AMI
DISC

CONTENTS

IMPORTANT SERVICE NOTES (FOR UIS.A. ONLY)
SPECIFICATIONS
NAMES OF PARTS H
OPERATION MANUAL
QUICK GUIDE (FOR U.SIA. ONLY) ..
DISASSEMBLY ..................................
REMOVING AND REINSTALLING TH
ADJUSTMENT ...................................
NOTES ON SCHEMATIC DIAGRAM
TYPES OF TRANSISTOR AND LED.
BLOCK DIAGRAM .............................
SCHEMATIC DIAGRAM /W|R|NG SIDE OF P.W.BOARD
VOLTAGE ...................................
WAVEFORMS OF CD CIRCUIT.
TROUBLESHOOTING .....
FUNCTION TABLE OF IC
FL DISPLAY .....................
REPLACEMENT PARTS LIST/EXPLODED VIEW
PACKING OF THE SET (FOR U.S.At ONLY)

\ /

This document has been published to be used

SHARP CORPORATION for after sales service only.

The contents are subject to change without notice.

Page 2

CD-XP700/CD-XP7700

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.

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

.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 1.5 kohm, 10 watt resistor
paralleled by a 0.15 uF 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.

g

VTVM
'0 AC SCALE 0-

1.5 kohms
10 W

0.15 uF
TEST PROBE

TO EXPOSED CONNECT TO
METAL PARTS KNOWN EARTH
GROUND

Allcheck mustberepeatedwiththeAClinecord 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.

Page 2

CD-XP700/CD-XP7700

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.

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

.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 1.5 kohm, 10 watt resistor
paralleled by a 0.15 uF 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.

g

VTVM
'0 AC SCALE 0-

1.5 kohms
10 W

0.15 uF
TEST PROBE

TO EXPOSED CONNECT TO
METAL PARTS KNOWN EARTH
GROUND

Allcheck mustberepeatedwiththeAClinecord 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.