SONY HCD-G101 SERVICE MANUAL Part 1

HCD-G101

SERVICE MANUAL

HCD-G101 is the tuner, deck, CD and amplifier section in MHC-G101.

Model Name Using Similar Mechanism NEW

SECTION

TAPE

DECK

SECTION

CD Mechanism Type CX3 Base Unit Type KSM-213BCM Optical Pick-up Type KSS-213B/S-N Model Name Using Similar Mechanism HCD-H100

Tape Transport Mechanism Type

US Model

Canadian Model

DECK-A DECK-B

TK20FX-SW943-800 TK20FX-SW943-800

SPECIFICATIONS

COMPACT DISC DECK RECEIVER

MICROFILM

— 1 —

SERVICING NOTE

CAUTION

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

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be damaged by heat.

Flexible Circuit Board Repairing

• Keep the temperature of soldering iron around 270˚C during repairing.

• Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering or unsoldering.

Laser component in this product is capable of emitting radiation exceeding the limit for Class 1.

This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior.

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

The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential 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 pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.

This caution label is located inside the unit.

SAFETY-RELATED COMPONENT WARNING !!

COMPONENTS IDENTIFIED BY MARK ! OR DO TTED 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 MARQUE ! SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLA CER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

— 2 —

SAFETY CHECK-OUT

TABLE OF CONTENTS

After correcting the original service problem, perform the following safety checks before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for A C leakage. Check leakage as described below.

LEAKAGE

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 ba ttery-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 v oltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A)

To Exposed Metal Parts on Set

0.15µF

1.5k

Ω

AC voltmeter (0.75V)

1. GENERAL

.......................................................................... 4

2. DISASSEMBLY

2-1. CD Door ............................................................................... 5

2-2. CD Mechanism Deck ............................................................ 5

2-3. Front Panel and Main Board ................................................. 6

2-4. Main Board and H/P Board................................................... 6

2-5. CD Tray ............................................................................... 7

2-6. CD Decoder Board................................................................ 7

2-7. Base Unit ............................................................................. 8

3. MECHANICAL ADJUSTMENTS ................................9

4. ELECTRICAL ADJUSTMENTS ................................. 9

5. DIAGRAMS

5-1. Circuit Boards Location ...................................................... 14

5-2. Brock Diagrams

• Tuner Section................................................................... 15

• CD Section ....................................................................... 17

• Deck Section .................................................................... 19

• Main Section .................................................................... 21

• Power Section .................................................................. 23

5-3. IC Brock Diagrams ............................................................. 25

5-4. Printed Wiring Board —Main Section — ........................... 30

5-5. Schematic Diagram — Main Section — ............................ 35

5-6. Schematic Diagram —Panel Section — ............................. 39

5-7. Printed Wiring Board —Panel Section — .......................... 43

5-8. Printed Wiring Board — CD Section —............................. 47

5-9. Schematic Diagram —CD Section — ................................ 51

5-10. IC Pin Function ................................................................ 54

Earth Ground

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

6. EXPLODED VIEWS

6-1. Top and Bottom Cabinet Section ........................................ 56

6-2. Front Panel Section ............................................................. 57

6-3. Cassette Mechanism Deck Section 1 .................................. 58

6-4. Cassette Mechanism Deck Section 2 .................................. 59

6-5. CD Mechanism Deck Section 1 .......................................... 60

6-6. CD Mechanism Deck Section 2 .......................................... 61

6-7. Base Unit Section (KSM-213BCM) ................................... 62

7. ELECTRICAL PARTS LIST ........................................ 63

— 3 —

Location of Parts and Controls

SECTION 1

GENERAL

!¢

!∞ !§

!™

!£ !¡

!¶

!•

!ª

@º

!º

@¡

987

@™ @•@§

@¢@£

@∞

1 Disc tray 2 DISC 1 button 3 DISC 2 button 4 DISC 3 button 5 DISC SKIP button 6 § OPEN/CLOSE button 7 DBFB button 8 VOLUME knob 9 Display window !º TIMER SET, CLOCK LIGHT button !¡ TIMER MODE button !™ Remote sensor !£ CLOCK SET button !¢ POWER button !∞ PHONES jack

!§ P (play/pause) button !¶ SHUFFLE button !• PROGRAM button !ª REPEAT button

@¶

#º#¡

@º p(stop) button @¡ CD button @™ TAPE button @£ TUNER/BAND button @¢ PRESET – button @∞ PRESET + button @§ MEMORY button @¶ – TUNING +/≠ 0/

) ± buttons

@• PRESET EQ button @ª Deck B #º Tape operating buttons

r (recording) (for deck A only)

· (play) 0 (fast rewind) ) (fast forward) p6 (stop/eject) P (pause)

#¡ Deck A

@ª

— 4 —

SECTION 2

DISASSEMBLY

Note: Follow the disassembly procedure in the numerical order given.

2-1. CD DOOR

CD door

craws

Pull out the CD tray and remove the CD door with releasing claws into the direction of arrow.

2-2. CD MECHANISM DECK

Flat type wire (21 core) (CN09)

Screw (BVTP3x10)

CD mechanism deck

Two screws (B3x8)

Two screws (BVTP3x10)

Harness (Main board: CN302)

— 5 —

Screw (BVTP3x10)

2-3. FRONT PANEL AND MAIN BOARD

Connector (CN401)

Front panel and Main board

Screw (BVTP3x10)

Screw (BVTP3x8)

HOW TO SET THE

POWER CORD

Two screws (BVTP3x10)

Screw (BVTP3x10)

Two screws (BVTP3x10)

2-4. MAIN BOARD AND H/P BOARD

Harness (CN204)

Screw (BVTT3x6)

Screw (PTPWH3x10)

H/P board

Screw (BVTT3x6)

Connector (CN203)

Three screws (BVTP3x10)

Connector (CN206)

Connector (CN201)

POWER CORD

Main board

Screw (BVTP3x8)

— 6 —

2-5. CD TRAY

Screw (BVTP3x10)

Bracket

CD tray

Screw (BVTP3x10)

Bracket

2-6. CD DECODER BOARD

CD decoder board

Two screws (BVTP3x10)

Flat type wire (CN06)

Connector (CN05)

Flat type wire (CN01)

Two claws

— 7 —

Two screws (BVTP3x6)

2-7. BASE UNIT

UD-cam

Screw (PTPWH2.6x8)

Note: When installing, set to

the groove of UD-cam.

Base unit

Two screws

— 8 —

+ 16 hidden pages