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Extracted text from sony cdc x 304 service manual (Ocr-read)
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CDC-R304/X104EE/X204/X304/X444
If the optical pick-up block is defective, please replace the whole
optical pick-up block.
Never turn the semi-fixed resistor located at the side of optical
pick-up block.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
P ART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY. A
TTENTION AU COMPOSANT AYANT RAPPORT
Ã- LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES
SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT.
NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES
SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL
OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
SERVICE NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
T he laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown 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. Therefore, when checking the laser diode emission, ob-
serve from more than 30 cm away from the objective lens.
Notes on Chip Component Replacement
- Never reuse a disconnected chip component.
- Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
optical pick-up
semi-fixed resistor
- US, Canadian model
- AEP, UK model
CAUTION
Use of controls or adjustments or performance of procedures other
than those specified herein may result in hazardous radiation
e xposure.
This compact disc player is classified as a CLASS 1 LASER
product. The CLASS 1 LASER PRODUCT label is located on the
e xterior.
This label is located on the bottom of the chassis.
CD player sectionSignal-to-noise ratio US, Canadian Model: 110 dB AEP, UK Model/CDC-X444: 120 dB
Fr equency response 10 -“ 20,000 Hz
Wo w and flutter Below measurable limit
Power amplifier sectionOutputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 -“ 8 ohms
Maximum power output CDC-R304/X304/X444: 52 W × 4 (at 4 ohms)
CDC-X104EE/X204:
45 W × 4 (at 4 ohms)
GeneralOutputs Audio outputs terminal (rear/sub switchable)
Power antenna relay control terminal
Po wer amplifier control terminal
Inputs Telephone ATT control terminal (AEP, UK Model/ CDC-X444)
Antenna input terminal
T one controls Low: ±10 dB at 60 Hz (HIP-HOP)
Mid: ±10 dB at 1 kHz (HIP-HOP)
High: ±10 dB at 10 kHz (HIP-HOP)
Po wer requirements 12 V DC car battery (negative ground)
Dimensions Approx. 178 × 50 × 176 mm
(7
1/8 × 2 × 7 in.) (w/h/d)
Mounting dimensions Approx. 182 × 53 × 161 mm
(7
1/4 × 2 1/8 × 6 3/8 in.) (w/h/d)
Mass Approx. 1.2 kg (2 lb. 10 oz.)
Supplied accessories Parts for installation and connections (1 set) Front panel case (1)
Card remote control RM-Z304 (CDC-X444)
Design and specifications are subject to change without
notice.
TEST DISCS
This set can playback CD-R and CD-ROM discs. The following
test discs should be used to check the capability: CD-R test disc TCD-R082LMT (Part No. J-2502-063-1)
CD-RW test disc TCD-W082L (Part No. J-2502-063-2)
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CDC-R304/X104EE/X204/X304/X444
z UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
- Unleaded solder melts at a temperature about 40°C higher thanordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350°C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
- Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
- Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
SERVO BOAR D CN1
J-2502-076-1
MAIN BOARD
CN301
Notes on CD-R/CD-RW discs
- You can play CD-Rs (recordable CDs)/CD-RWs (rewritable CDs)
designed for audio use on this unit.
Look for these marks to distinguish CD-Rs/CD-RWs for audio
use.
These marks denote that a disc is not for audio use.
- Some CD-Rs/CD-RWs (depending on the equipment used for
its recording or the condition of the disc) may not play on this
unit.
- You cannot play a CD-R/CD-RW that is not finalized -ˆ—
.
-ˆ— A process necessary for a recorded CD-R/CD-RW disc to be
played on the audio CD player.
EXTENSION CABLE AND SERVICE POSITION
When repairing or servicing this set, connect the jig (extension cable)
as shown below.
- Connect the MAIN board (CN301) and the SERVO board (CN1)
with the extension cable (Part No. J-2502-076-1).