Sony HTC-D259 - Page 2

MODEL IDENTIFICATION
Back Panel
Note on the Transit key
LLL LL
4-955-832-01: HTC-D259
4-955-832-11: HTC-D359 The transit key (a)) on the bottom exterior of the CD player protects
the optical system against shock during transportation.
Before operating the unit, be sure to remove the key by following the
instructions on the label, and store it in a safe place.
UP BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may
suffer electrostatic breakdown because of the poten-
tial difference generated by the charged electrostatic
load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-
down and also use the procedure in the printed
matter which is included in the repair parts.
The flexible board is easily damaged and should be
handled with care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so
as to be focused on the disc reflective surface by the
objective lens in the optical pick-up block. There-
fore, when checking the laser diode emission, observe
more than 30 cm away from the objective lens.
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.
When transporting the unit, put the key to its original position and
lock it in place.
TABLE OF CONTENTS
Section Title Page
Specifications -+++srtte reser steer eter eee ee eeee 1
Notes on Handling the Optical Pick-up Block
or Base Unit eee ere ee ech ee eee ee ee ee te ee 2
Notes on Laser Diode Emission Check -+++++++++++: 2
Note on the Transit Key ee 2
1. GENERAL. 62<s2sisesS oe exdtnd te ues eS
2. ADJUSTMENTS
2-1. Mechanical Adjustments «+++-:++rrrrtreeeees 4
2-2... - Electrical Adjustments: «1+ *} 9s 273439 es 4
Cassette Deck Section: *saassesurisase siete 4
CD Section Ce ee OY 7
3. DIAGRAMS
3-1. CD Section Block Diagram ++++++++rrretrees 9
3-2. | Cassette Deck Section Block Diagram ---::-:> Bi
3-3. CD Section Printed Wiring Boards --+++:+-+:: 14
3-4, CD Section Schematic Diagram -++++++++°+++ 17
3-5. Cassette Deck Section Schematic Diagram ---- 22
3-6. Cassette Deck Section Printed Wiring Boards -- 27
4. EXPLODED VIEWS --ecee tree eer etree 31
5. ELECTRICAL PARTS LIST .::-:::---:::: 38
ATTENTION AU COMPOSANT AYANT RAPPORT
A LA SECURITE!
LES COMPOSANTS IDENTIFIES PAR UNE MARQUE /\
SUR LES DIAGRAMMES SCHEMATIQUES ET LA LISTE
DES PIECES SONT CRITIQUES POUR LA SECURITE
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIECES SONY DONT LES
NUMEROS SONT DONNES DANS CE MANUEL OU
DANS LES SUPPLEMENTS PUBLIES PAR SONY.