Sharp cd pc 3500 service manual

Page 1

CD-PC3500

SHARP SERVICE MANUAL

No. $201SCDP03500

CD-PC3500

v
COMPACT D_ CD-P03500 Mini Component System consisting of
U§[B Manufactured under license lrom Dolby Laboratories Licens- PC3500 (main unit), CP-C3500 (front speakers),

o t .
ggLBtVfirhaeKybuble-D symbol DE] and "PRO LOGIC" are GBOXS°°35AWM1 (center speaker) and
DIGITAL AUDIO trademarks of Dolby Laboratories Licensing Corporation. GBOXSOO37AWM1 (rear speakers).

- In the interests of user-safety the set should be restored to its
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
BLOCK DIAGRAM .....
SCHEMATIC DIAGRA
VOLTAGE ...................................
WAVEFORMS OF CD CIRCUIT.
TROUBLESHOOTING (CD SECTION)
FUNCTION TABLE OF IC.
FL DISPLAY
REPLACEMEN
PACKING OF THE SET (FOR U.S.A. ONLY)

This document has been published to be used

SHARP CORPORATION tor alter sales service only.

The contents are subject to change without notice.

Page 1

CD-PC3500

SHARP SERVICE MANUAL

No. $201SCDP03500

CD-PC3500

v
COMPACT D_ CD-P03500 Mini Component System consisting of
U§[B Manufactured under license lrom Dolby Laboratories Licens- PC3500 (main unit), CP-C3500 (front speakers),

o t .
ggLBtVfirhaeKybuble-D symbol DE] and "PRO LOGIC" are GBOXS°°35AWM1 (center speaker) and
DIGITAL AUDIO trademarks of Dolby Laboratories Licensing Corporation. GBOXSOO37AWM1 (rear speakers).

- In the interests of user-safety the set should be restored to its
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
BLOCK DIAGRAM .....
SCHEMATIC DIAGRA
VOLTAGE ...................................
WAVEFORMS OF CD CIRCUIT.
TROUBLESHOOTING (CD SECTION)
FUNCTION TABLE OF IC.
FL DISPLAY
REPLACEMEN
PACKING OF THE SET (FOR U.S.A. ONLY)

This document has been published to be used

SHARP CORPORATION tor alter sales service only.

The contents are subject to change without notice.

Page 2

CD-PC3500

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.

. 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 1.5K ohm, 10 watt resistor
paralleled by a 0.15pF 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 tothe chassis (antenna, metal cabinet,
screw heads, knobs and control shafts, escutcheon. etc.)
and measure the AC voltage drop across the resistor.

9%

VTVM
'0 AC SCALE 0-

1.5k ohms
10W

015 p. F
TEST PROBE

TO EXPOSED CONNECT TO
METAL PARTS KNOWN EARTH
GROUND

AllcheckmustberepeatedwiththeAClinecord plugconnection
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-PC3500

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.

. 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 1.5K ohm, 10 watt resistor
paralleled by a 0.15pF 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 tothe chassis (antenna, metal cabinet,
screw heads, knobs and control shafts, escutcheon. etc.)
and measure the AC voltage drop across the resistor.

9%

VTVM
'0 AC SCALE 0-

1.5k ohms
10W

015 p. F
TEST PROBE

TO EXPOSED CONNECT TO
METAL PARTS KNOWN EARTH
GROUND

AllcheckmustberepeatedwiththeAClinecord plugconnection
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.