Sony icf cd 863 l service manual

Page 2

ICF-CD863/CD863L

TABLE OF CONTENTS

1. SERVICING NOTES .. 3
2. GENERAL .. 4
3. DISASSEMBLY

3-1. Disassembly Flow 5
3-2. Cabinet (Rear) Section 6
3-3. Cabinet (Upper) Section ....... 6
3-4. Panel (SP) (,L), Panel (SP) (,R) 7
3-5. CD Lid Assy ................... 7
3-6. KEY Board, MAIN Board . 8
3-7. CD Block. 8
3-8. Optical Pic up Device (KSS-213R 9
3-9. TRANSFORMER Board ............. . 9
3-10. Box (SP) Assy .................................................. .. 10
3-11. Speaker (8.2 cm) (Woofer) (SP301), Box (SP) . ll

4. ELECTRICAL ADJUSTMENTS

Tuner Section 12

CD Section . l3
5. DIAGRAMS
5-]. Block Diagram 7 CD Section 7.. 14
5-2. Block Diagram 7 TUNER Section 15
5-3. Block Diagram 7 MAIN Section 7 16
5-4. Note for Printed Wiring Board and

Schematic Diagrams .............
5-5. Printed Wiring Board 7 CD Section 7 18
5-6. Schematic Diagram 7 CD Section 7. . 19
5-7. Printed Wiring Boards 7 MAIN Section 7 .. . 21
5-8. Schematic Diagram 7 MAIN Section (1/2) . 22
5-9. Schematic Diagram 7 MAIN Section (2/2) 7. . 23
5-10. Printed Wiring Boards 7AMP Section . 24
5-1 1. Schematic Diagram 7AMP Section 7.. . 25
5-12. Printed Wiring Boards 7 PANEL Section 7 . 26
5-13. Schematic Diagram 7 PANEL Section 7. . 27
5-14. IC Pin Function Description .......................................... 30
6. EXPLODED VIEWS
6-1. Overall Section .........
6-2. Cabinet (Front) Set. on
6-3. Cabinet (Upper) Section
6-4. Cabinet (Rear) Section ..
6-5. Optical Block (KSM-213RDP) ....................................... 35
7. ELECTRICAL PARTS LIST .............................. 36

CLASS 1 LASER PRODUCT
LUOKAN 1 LASERLAITE

KLASS 1 LASERAPPAFIAT

This Compact Disc player is Classified
as a CLASS 1 LASER product.

The CLASS 1 LASER PRODUCT label
is located on the bottom exteriorl

SAFETY-RELATED COMPONENT WARNING !!

COMPONENTS IDENTIFIED BY MARK A OR DOTTED
LINE WITH MARK A ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.

Notes on chip component replacement

- Never reuse a disconnected chip component.

Notice that the minus side ofa tantalum capacitor may be dam-
aged by heat.

SAFETY CHECK-OUT

After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:

Check the antenna terminals, metal trim, metallized knobs,
screws, and all other exposed metal parts for AC leakage.

Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and

from all exposed metal parts to any exposed metal part having a

return to ch s, must not exceed 0.5 mA (500 microamperes).

Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers instructions to use these
instruments.

2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The limit indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suit-
able. (See Fig. A)

To Exposed Metal
Parts on Set

A C
/ voltmeter
(0. 75 V)

g 1.5M!

0. 15 11F

_7_ Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.

CAUTION

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.

About CD-RS/CD-RWS

This unit is compatible with CD-Rs/CD-RWs hut
playback capability may vary depending on the
quality at the disc) the recording device and
application software.

ATTENTION AU COMPOSANT AYANT RAPPORT
A LA SECURITEI

LES COMPOSANTS IDENTIFIES PAR UNE MAROUE A
SUR LES DIAGRAMMES SCHEMATIOUES ET LA LISTE
DES PIECES SONT CRITIOUES POUR LA SECURITE
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS OUE PAR DES PIECES SONv DONT LES
NUMEROS SONT DONNES DANS CE MANUEL OU
DANS LES SUPPLEMENTS PUBLIES PAR SONY.