Sony PMCD-305 Service manual

PMC-D305/D305L

SERVICE MANUAL

Ver 1.2 1999. 11 With SUPPLEMENT-1 (9-923-212-81)

Photo: PMC-D305L

CD Section

TAPE Section

US Model

Canadian Model

E Model

Australian Model

PMC-D305

AEP Model

UK Model

PMC-D305L

Model Name Using Similar MechanismCFD-ZW150, ZW150L CD Mechanism Type KSM-213CAM/C2NP Optiacal Pick-up Name KSS-213B/S-RP Model Name Using Similar Mechanism NEW Tape Transport Mechanism Type MF-D305

For the US model AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC DISTORTION With 6.0-ohm loads, both channels driven from 100-15,000 Hz; rated 9.4 W per channel-minimum RMS power, with no more than 10 % total harmonic distortion in AC operation.

CD player section

system

Compact disc digital audio system

Laser diode properties

Material: GaAlAs Wave length: 780 nm Emission duration: Continuous Laser output: Less than 44.6 µW (This output is the value measured at a distance of about 200 mm from the objective lens surface on the optical pick-up block with 7 mm aperture.)

Spindle speed

200 r/min (rpm) to 500 r/min (rpm) (CLV)

Number of channels

Frequency response

20-20,000 Hz + 1/– 2.5 dB

Wow and flutter

Below measurable limit

SPECIFICATIONS

Radio section

Frequency range

FM AM (MW) LW

US, Canadian, E 87.6 – 530 – Models 108 MHz 1,710 kHz

AEP, UK, CET 87.6 – 531 – 153 – Models 107 MHz 1,602 kHz279 kHz

Italian 87.5 – 531 – 153 – Model 108 MHz 1,602 kHz279 kHz

Australian 87.6 – 531 – Model 108 MHz 1,602 kHz

FM: 10.7 MHz AM (MW)/LW: 450 kHz

Aerials

FM: Lead aerial (D305) FM: External aerial terminal (D305L) AM (MW)/LW: External aerial terminal

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MICROFILM

PERSONAL COMPONENT SYSTEM

Cassette-corder section

Recording system

4-track 2 channel stereo

Fast winding time

Approx. 130 s (sec.) with Sony cassette C-60

Frequency response

TYPE I (normal):40-15,000 Hz

General

Speaker

Full range: 8 cm (3 1/

Input

LINE IN jack (stereo minijack) Minimum input level 250 mV

Outputs

Headphones jack (stereo minijack) For 16-68 ohms impedance headphones LINE OUT jack (stereo minijack) Rated output level 440 mV at load impedance 47 kilohms Optical digital output (optical output connector) Wave length: 630 – 690 nm

Power output (excluding US model)

10 W + 10 W (at 6.0 ohms, 10% harmonic distortion)

Power requirements

For personal component system:

US, Canadian, E models 120 V AC, 60 Hz AEP, UK, Italian, CET,

Australian models 230 V AC, 50 Hz

For remote commander: 3 V DC, 2 size AA (R6) batteries

Power consumption

AC 35 W

Dimensions (incl. projecting Parts)

Player: approx. 130 × 211 × 200 mm (w/h/d)

(5 1/8 × 8 3/8 × 7 7/8 inches)

Left speaker: approx. 125 × 210 × 234 mm

(w/h/d) (5 × 8 3/8 × 9 1/4 inches)

Right speaker: approx. 125 × 210 × 200 mm

(w/h/d) (5 × 8 3/8 × 7 7/8 inches)

Mass

Player: approx. 1.7 kg (3 lb. 12 oz) Left speaker: approx. 2.8 kg (6 lb. 3 oz) Right speaker: approx. 1.1 kg (2 lb. 7 oz)

Supplied accessories

Remote commander (1) FM lead aerial (1) (D305L) AM (MW)/LW loop aerial (1) Audio connecting cord (1)

in.) dia., 6.0 ohms, cone type ×2

1. SERVICING NOTES ............................................... 3

2. GENERAL ................................................................... 5

3. DISASSEMBLY.......................................................... 21

4. MECHANICAL ADJUSTMENTS ....................... 26

5. ELECTRICAL ADJUSTMENTS

Tape Deck Section ........................................................... 26

Tuner Section................................................................... 28

CD Section....................................................................... 30

6. DIAGRAMS

6-1. Printed Wiring Board

– Tuner Section – (PMC-D305) ...................................... 35

6-2. Schematic Diagram

– Tuner Section – (PMC-D305) ...................................... 37

6-3. Schematic Diagram

– Tuner Section – (PMC-D305L) .................................... 40

6-4. Printed Wiring Board

– Tuner Section – (PMC-D305L) .................................... 43

6-5. Printed Wiring Boards – CD Section –............................ 47

6-6. Schematic Diagram – CD Section – ................................ 49

6-7. Printed Wiring Boards – Main Section –......................... 52

6-8. Schematic Diagram – Main Section – ............................. 55

6-9. Schematic Diagram – Control Section – ......................... 58

6-10. Printed Wiring Boards – Control Section –..................... 61

6-11. Printed Wiring Boards – Power Section – ....................... 65

6-12. Schematic Diagram – Power Section – ........................... 67

6-13. IC Pin Function Description ............................................ 74

7. EXPLODED VIEWS ................................................ 76

8. ELECTRICAL PARTS LIST................................ 84

Design and specifications are subject to change without notice.

• Abbreviation CET : East European, Russian

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SECTION 1

SERVICING NOTES

SAFETY CHECK-OUT

After correcting the original service problem, perform the following 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 chassis, must not exceed 0.5 mA (500 microampers). 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 A C voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63T rd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A)

To Exposed Metal Parts on Set

CHUCK PLATE JIG ON REPAIRING

On repairing CD section, playing a disc without the CD lid, use Chuck Plate Jig.

• Code number of Chuck Plate Jig: X-4918-255-1

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT

The 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.

0.15 µF

1.5 k

Ω

Earth Ground

AC voltmete (0.75 V)

Fig. A. Using an AC voltmeter to check AC leakage.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! 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 PUBLISHED BY SONY.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQ UE ! SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT . NE REMPLACER CES COM- POSANTS QUE P AR DES PIÈCES SONY DONT LES NUMÉR OS SONT DONNÉS DANS CE MANUEL OU D ANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

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, observe from more than 30 cm away from the objective lens.

This Compact Disc player is classiffied as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT table is location on the rear exterior.

CAUTION

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

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LASER DIODE AND FOCUS SEARCH OPERATION CHECK

1. Turn POWER switch on with to disc inserted and make Function switch to CD position.

2. Open the lid for CD.

3. Turn on S801 as following figure.

4. Press the · button.

5. Confirm the laser diode emission while observing the objecting lens. When there is no emission, Auto Po wer Control circuit or Optical Pick-up is broken. Objective lens moves up and do wn three times for focus search.

S801

MODEL IDENTIFICATION

– Model Number Label – Carved on rear cabinet

PMC-D305 PMC-D305L

MODEL. No.

PERSONAL COMPONENT SYSTEM

MADE IN INDONESIA

US, Canadian, E models

AC: 120 V 60 Hz 35 W

AEP, UK, Italian, CET, Australian models

AC: 230 V ⁄ 50 Hz 35 W

• Abbreviation CET: East European, Russian

HOW TO CHANGE THE FM CERAMIC FILTERS

This model is used two ceramic filters of CF1, 2 and CF3. Therefore, the ceramic filter must change two pieces together since it's supply two pieces in one package as a spare parts.

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