Sony HCD-RG4SR,HCD-RG20,HCD-RG30T Service Manual

HCD-DX10/RG4SR/RG20/RG30T

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SERVICE MANUAL

Ver 1.0 2001. 06

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• HCD-DX10/RG4SR/RG20/RG30T is the tuner, deck, CD and amplifier section in MHC-DX10/RG4SR/RG20/RG30T.

Photo : HCD-DX10

CD Section

Tape deck Model Name Using Similar Mechanism NEW Section T ape Transport Mechanism T ype CWL44FF29

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US Model

HCD-RG4SR/RG20/RG30T

Canadian Model

HCD-RG20/RG30T

AEP Model

UK Model

HCD-RG20

E Model

Australian Model

HCD-DX10

Model Name Using Similar Mechanism NEW CD Mechanism Type CDM58F-K6 Optical Pick-up Name

KSM-213DCP/Z-NP

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AUDIO POWER SPECIFICATIONS: (HCD-RG4SR USA model only)

POWER OUTPUT AND TOTAL HARMONIC DISTORTION:

with 6 ohm loads both channels driven, from 120 – 10,000 Hz; rates 100 watts per channel minimum RMS power, with no more than 10% total harmonic distortion from 250 milliwatts to rated output.

Total harmonic distortion less than 0.07%

(HCD-RG30T USA model only)

POWER OUTPUT AND TOTAL HARMONIC DISTORTION:

with 6 ohm loads both channels driven, from 120 – 10,000 Hz; rates 75 watts per channel minimum RMS power, with no more than 10% total harmonic distortion from 250 milliwatts to rated output.

Total harmonic distortion less than 0.07%

(HCD-RG20 USA model only)

POWER OUTPUT AND TOTAL HARMONIC DISTORTION:

with 6 ohm loads both channels driven, from 120 – 10,000 Hz; rates 60 watts per channel minimum RMS power, with no more than 10% total harmonic distortion from 250 milliwatts to rated output.

Total harmonic distortion less than 0.07%

(6 ohms at 1 kHz, 50 W)

(6 ohms at 1 kHz, 30 W)

SPECIFICATIONS

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Amplifier section

Canadian models: HCD-RG30T

Continuous RMS power output (reference)

Total harmonic distortion less than 0.07%

HCD-RG20

Continuous RMS power output (reference)

Total harmonic distortion less than 0.07%

European model: HCD-RG20

DIN power output (rated) 40 + 40 watts Continuous RMS power output (reference)

Music power output (reference)

Other model: HCD-DX10

The following measured at AC 120, 220, 240 V 50/60 Hz DIN power output (rated) 40 + 40 watts

Continuous RMS power output (reference)

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75 + 75 watts (6 ohms at 1 kHz, 10% THD)

(6 ohms at 1 kHz, 50 W)

60 + 60 watts (6 ohms at 1 kHz, 10% THD)

(6 ohms at 1 kHz, 30 W)

(6 ohms at 1 kHz, DIN) 50 + 50 watts (6 ohms at 1

kHz, 10% THD) 95 + 95 watts (6 ohms

at 1 kHz, 10% THD)

(6 ohms at 1 kHz, DIN) 50 + 50 watts (6 ohms at 1

kHz, 10% THD)

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MINI HIFI COMPONENT SYSTEM

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Inputs GAME (AUDIO) IN (phono jack):

Outputs PHONES (stereo mini jack):

Front speaker: accepts impedance of 6 to Surround speaker (HCD-RG4SR only):

CD player section

System Compact disc and digital Laser Semiconductor laser

Frequency response 2 Hz – 20 kHz (±0.5 dB) Wavelength 780 – 790 nm Signal-to-noise ratio More than 90 dB Dynamic range More than 90 dB

Tape deck section

Recording system 4-track 2-channel stereo Frequency response 40 – 13,000 Hz (±3 dB),

voltage 450 mV, impedance 47 kilohms

accepts headphones of 8 ohms or more

16 ohms accepts impedance of 6 to

16 ohms

audio system (λ=780 nm)

Emission duration: continuous

using Sony TYPE I cassette

— Continued on next page —

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Sony Corporation

Home Audio Company Shinagawa Tec Service Manual Production Group

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HCD-DX10/RG4SR/RG20/RG30T

Tuner section

FM stereo, FM/AM superheterodyne tuner

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FM tuner section

Tuning range 87.5 – 108.0 MHz Antenna FM lead antenna Antenna terminals 75 ohm unbalanced Intermediate frequency 10.7 MHz

AM tuner section

Tuning range Pan-American models: 530 – 1,710 kHz (with the

European and Middle Eastern models:

Other models: 531 – 1,602 kHz (with the

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Antenna AM loop antenna Antenna terminals External antenna terminal Intermediate frequency 450 kHz

General

Power requirements North American models: 120 V AC, 60 Hz European models: 230 V AC, 50/60 Hz Australian models: 230 – 240 V AC,

Mexican models: 120 V AC, 50/60 Hz Other models: 120 V, 220 V or

Power consumption USA models: HCD-RG4SR: 160 watts HCD-RG30T: 115 watts HCD-RG20: 95 watts Canadian models:

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HCD-RG30T: 115 watts HCD-RG20: 95 watts European model: HCD-RG20: 85 watts

Other model: HCD-DX10: 85 watts

Dimensions (w/h/d) Mass

North American models: HCD-RG4SR: Approx. 8.7 kg HCD-RG30T: Approx. 8.2 kg HCD-RG20: Approx. 7.8 kg European model: HCD-RG20: Approx. 8.1 kg Other model: HCD-DX10: Approx. 8.2 kg

Design and specifications are subject to change without notice.

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interval set at 10 kHz) 531 – 1,710 kHz (with the interval set at 9 kHz)

531 – 1,602 kHz (with the interval set at 9 kHz)

interval set at 9 kHz) 530 – 1,710 kHz (with the interval set at 10 kHz)

50/60 Hz

230 – 240 V AC, 50/60 Hz Adjustable with voltage selector

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1.0 watts (at the Power Saving Mode)

Approx. 280 × 325 × 421 mm

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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 A C leakag e from any exposed metal part to earth g round and from all exposed metal parts to any exposed metal part having a return to chassis, 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. Follo w 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-63Trd are e xamples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A)

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SAFETY CHECK-OUT

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Fig. A. Using an A C v oltmeter to check A C leakage.

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T o Exposed Metal

Parts on Set

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0.15 µF

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1.5 kΩ

Earth Ground

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AC Voltmeter (0.75 V)

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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 PART NUMBERS

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APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

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ATTENTION AU COMPOSANT AYANT RAPPORT

LES COMPOSANTS IDENTIFÉS P AR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMA TIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY

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DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.

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À LA SÉCURITÉ!

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HCD-DX10/RG4SR/RG20/RG30T

NOTES ON HANDLING THE OPTICAL PICK-UP

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BLOCK OR BASE UNIT

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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.

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.

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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.

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1. GENERAL ·········································································· 4

2. DISASSEMBLY ································································ 6

3. TEST MODE ···································································· 11

4. ELECTRICAL ADJUSTMENTS ······························· 13

5. DIAGRAMS······································································ 15

5-1. Circuit Board Location ················································ 15 5-2. Block Diagrams ··························································· 16

5-3. Printed Wiring Board CD Section ····························· 18 5-4. Schematic Diagram CD Section ································ 19 5-5. Printed Wiring Board Main Section ·························· 20 5-6. Schematic Diagram Main Section (1/4) ···················· 21 5-7. Schematic Diagram Main Section (2/4) ···················· 22 5-8. Schematic Diagram Main Section (3/4) ···················· 23 5-9. Schematic Diagram Main Section (4/4) ···················· 24 5-10.Printed Wiring Board Address Sensor,

5-11.Printed Wiring Board Panel Section·························· 26 5-12.Schematic Diagram Panel Section ···························· 27 5-13.Printed Wiring Board Power Section ························ 28 5-14.Printed Wiring Board Trans Section ·························· 29 5-15.Schematic Diagram Trans Section ···························· 30 5-16.IC Block Diagrams ······················································ 31 5-17.IC Pin Function Description ········································ 34

6. EXPLODED VIEWS

6-1. Main Section ······························································· 36 6-2. Front Panel Section ····················································· 37

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6-3. Main Board Section ····················································· 38 6-4. CD Mechanism Deck Section ····································· 39

7. ELECTRICAL PARTS LIST ······································· 40

MODEL IDENTIFICATION

— BACK PANEL —

GENERAL

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This section is extracted

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from instruction manual.

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wk wj wh wg

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AUDIO jacks wd (19) CD wk (10 – 12, 15) CD SYNC qh (15) Deck A ws (14) Deck B qs (14 – 16) DISC 1 – 3 4 (10, 11) DISC SKIP EX-CHANGE 3

(10, 11) Disc tray 5 (10) DISPLAY w; (12) EFFECT ON/OFF qd

(17) GAME wg (18 – 20)

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GAME EQ ql (17, 18, 20) GROOVE 8 (17) MOVIE EQ 7 (17) MUSIC EQ 2 (17) PHONES jack q; REC PAUSE/START qg (15) TAPE A/B wh (14, 15) TUNER/BAND wj (12, 13, 15) VIDEO jack wf (19, 20) VOLUME control 9

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qa qs

qdqfqgqhqjqkqlw;wa

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BUTTON DESCRIPTIONS

?/1 (power) 1 Z OPEN/CLOSE 6 Z (deck B) qa M (fast forward) qf . (go back) qj > (go forward) qj X (pause) qj H (play) qj x (stop) qj m (rewind) qk Z (deck A) wa

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HCD-DX10/RG4SR/RG20/RG30T

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Remote Control

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qg

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CD ql (10 – 12, 15) CLEAR w; (11) CLOCK/TIMER SELECT 2

(16, 19)

CLOCK/TIMER SET 3 (9, 16,

18) DISPLAY 6 (12) D.SKIP 7 (10) ENTER qg (9, 11 – 13, 16, 18,

19) EQ +/– qf (17) GAME q; (18 – 20) GROOVE qd (17)

Setting the time

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Press ?/1 to turn on the system.

2

Press CLOCK/TIMER SET on the remote.

Proceed to step 5 when “CLOCK” appears in the display.

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Press . or > repeatedly to select “SET CLOCK”.

4

Press ENTER on the remote.

5

Press . or > repeatedly to set the hour.

ON/OFF qh (17)

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PLAY MODE wa (10, 11) PRESET +/– 5 (13) REPEAT 8 (11) SLEEP 1 (18) STEREO/MONO 8 (13) SURROUND qa (17) TAPE A/B 9 (14, 15) TUNER MEMORY qj (12, 13) TUNER/BAND qk (12, 13) TUNING +/– 5 (12, 13) VOL +/– qs

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Press ENTER on the remote.

The minute indication flashes.

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Press . or > repeatedly to set the minute.

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Press ENTER on the remote.

Tip

If you made a mistake or want to change the time, start over from step 2.

Note

The clock settings are canceled when you disconnect the power cord or if a power failure occurs.

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?/1 (power) 4 M (fast forward) 5 . (go back) 5 > (go forward) 5 X (pause) 5 N (play) 5 m (rewind) 5 x (stop) 5

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BUTTON DESCRIPTIONS

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HCD-DX10/RG4SR/RG20/RG30T

Note : Disassemble the unit in the order as shown below.

Set

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Case (Top)

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CD door

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SECTION 2

DISASSEMBLY

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Front panel section and CD mechanism deck (CDM58F-K6) section

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

2-1. CASE (TOP)

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Case (Top)

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Two screws (Case 3 TP2)

Base unit

Panel board

Tape mechanism deck and Panel board

CD board

Sub trans board, Video out board and Trans board

Main board and Power board

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CD board, Driver board, Motor board and Address sensor board

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Four screws (+BVTP 3

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6)

TEL

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Screw (Case 3 TP2)

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Case (Side-L)

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Two screws

(+BVTP 3

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×

10)

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Case (Side-R)

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Two screws (Case 3 TP2)

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Screw (Case 3 TP2)

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Two

screws

(+BVTP 3

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×

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2-2. CD DOOR

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CD mechanism deck (CDM58F-K6)

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Turn the pulley to the direction of arrow.

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Front panel side

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HCD-DX10/RG4SR/RG20/RG30T

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CD door

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pulley

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Pull-out the disc tray.

2-3. FRONT PANEL SECTION AND CD MECHANISM DECK (CDM58F-K6) SECTION

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CD mechanism deck (CDM58F-K6)

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Connector

(CN605)

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Flat type wire (19 core)

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Screw (+BVTP 3

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Three screws (+BVTP 3

×

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10)

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Connector (CN202)

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Screw

(+BVTP 3

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× 10

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10)

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(CN704)

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Connector (CN201)

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Screw

(+BVTP 3

Front panel section

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Connector

×

10)

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Connector (CN203)

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HCD-DX10/RG4SR/RG20/RG30T

2-4. TAPE MECHANISM DECK AND PANEL BOARD

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PANEL board

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Flat type wire (17 core)

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Six screws

(+BVTP 2.6

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(+BVTP 2.6

×

8)

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Six screws

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2

×

8)

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Five screws

(+BVTP 2.6

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(+BVTP 2.6

Belt (BF)

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×

8)

Eight screws

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Belt (AF)

×

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8)

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Volume knob

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2-5. SUB TRANS BOARD, VIDEO OUT BOARD AND TRANS BOARD

TRANS board

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SENSOR board

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Screw (+BVTP 3

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Four screws

(+BVTT 4

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Cover (duct)

qs

VIDEO OUT board

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Connector (CN901)

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3

Tape mechanism deck

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Connector (CN2)

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Belt (FR

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Screw

(+BVTP 3

5

(+BVTP 3

qd

(+BVTP 3

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2

9

×

10)

Two screws

Five screws

qg

(+BVTP 3

×

Two screws

10)

×

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10)

2

9

qj

Connector (CN915)

ql

Power

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transformer (T911)

Connector (CN504)

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Connector

(CN903)

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SUB TRANS

board

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Two screws

(+BVTP 3

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10)

3

D

C fan (M961)

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Back panel

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2-6. MAIN BOARD AND POWER BOARD

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Three screws (+BVTP 3

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×

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HCD-DX10/RG4SR/RG20/RG30T

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Heat sink

8

Two screws (+BVTP 3

MAIN board

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× 8)

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POWER

5

Two screws (+BVTP 3

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2-7. BASE UNIT

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Turn the pulley to the direction of arrow.

board

×

16)

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Pulley (B), chucking

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Two screws (+BVTP 3

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MAIN board

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×

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pulley

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Flat type wire (16 core)

Spring (insulator), coil

qd

Two insulators

2

7

Holder (BU) assy

Base unit

Two

screws (+PTPWH M2.6)

3

Lever (lifter)

qs

6

Screw

(+PTPWH M2.6)

Two spring (insulator), coil

qd

Two insulators

qa

Screw (DIA. 12)

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Two stoppers (BU)

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3

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Spring

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(insulator), coil

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Two screws (+BVTP 2.6

q;

Two

screws

(+PTPWH M2.6)

×

8)

9

HCD-DX10/RG4SR/RG20/RG30T

2-8. CD BOARD, DRIVER BOARD, MOTOR BOARD AND ADDRESS SENSOR BOARD

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qa

Tray

3

Flat type wire

(8 core)

2

DRIVER board

3

1

5

q;

Screw (+PTPWH 2.6

qs

Screw (+BVTP 2.6

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×

8)

MOTOR board

×

8)

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8

4

Two screws (+BVTP 2.6

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Flat type wire (8 core)

5

Remove two solderings of turn motor (M721).

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Connector

qd

ADDRESS SENSOR board

2

4

×

2

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8)

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TEL

1

Screw (+BVTP 2.6

9

Pull-out the Table.

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×

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1

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3

6

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qg

Four

screws

(+BVTP 2.6

×

8)

qf

Flat type wire (16 core)

qh

CD board

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SECTION 3

TEST MODE

HCD-DX10/RG4SR/RG20/RG30T

[Change-over of AM Tuner Step between 9 kHz and

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10 kHz]

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• A step of AM channels can be changed o ver between 9 kHz and 10 kHz.

Procedure:

1. Press ?/1 button to turn the set ON.

2. Select the function “TUNER”, and press TUNER/BAND

button to select the BAND “AM”.

3. Press ?/1 button to turn the set OFF.

4. Press TUNER/BAND and ?/1 buttons simultaneously, and

the display of fluorescent indicator tube changes to “AM 9 k STEP” or “ AM 10 k STEP”, and thus the channel step is changed over.

[Cold Reset]

• The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the customer.

Procedure:

1. Press three buttons x , DISPLA Y , and ?/1 simultaneously.

2. The fluorescent indicator tube displays “COLD RESET” and

the set is reset.

[Aging Mode]

This mode can be used for operation check of CD section and tape deck section.

• If an error occurred: The aging operation stops and is displayed status.

• If no error occurs: The aging operation continues repeatedly.

TEL

1. Operating method of Aging Mode

Turn on the main power and select “CD” of the function.

1) Set three discs in tray. Select ALL DISCS, and REPEAT OFF.

2) Load the tapes recording use into both decks.

3) Press three buttons x , DISPLAY , and

DISC SKIP EX-CHANGE simultaneously.

4) Aging operations of CD and tape are started at the same time.

5) To exit the aging mode, perform [Cold Reset].

2. Aging mode in CD section

1) Operation during aging mode

• In the agining mode ,the program is excuted in the following sequence.

(1) The disc tray opens and closes. (2) The disc tray turns to select a disc 3. (3) The pickup accesses to the first track, and plays 3 seconds. (4) The pickup accesses to the last track, and plays 3 seconds. (5) The disc tray opens and closes. (6) The disc tray turns to select a disc 1. (7) The same operation starts like step (3). (8) After a disc 1 aging operation, a disc 2 is selected. (9) When an aging operation of a disc 3 is completed, the display

(10) If no error occurs, the aging operation continues repeatedly.

3

7

6

3

1

13942296513

“AGING

∗∗∗∗” value increases.

5

1

5

0

Q

2) Error display

Display Error

E00D01022 Focus error (No disc) E00D02022 Sub Q error (Focus is good) E00D02023 TOC reading error E00D02014 Access error (Unable within regular time)

Display Error

E00M__E_0 Error during opening tray E00M__C_2 EX-CHANGE disc error E00M__D_0 Error during closing tray

E00M__F_3 EX-OPEN error E00M__D_5 EX-CLOSE error E00M__C_2 Chuck-up error E00M__C_3 Unchucking error

3. Aging mode in Tape Deck section

1) Operation during aging mode

• In the agining mode, the program is excuted in the following sequence.

Step

1 2 3 4 5 6

7

3

7 8

9 10 11 12

2) Error display

• If error occurred, the display remains like “TAPE BAG-2”.

4. Exiting from the aging mode

• Be sure to perform Cold Reset to exit from the aging mode.

4

2

9

8

Mechanism error

Operation

Rewind the TAPE A Rewind the TAPE B Play the TAPE A (1 minute) Stop the TAPE A (1 second) Play the TAPE A (3 minutes) Rewind(AMS) the TAPE A

5

1

3

6

F.F.(AMS) the TAPE A Play the TAPE B (1 minute) Stop the TAPE B (1 second) Record the TAPE B (3 minutes) Rewind(AMS) the TAPE B F.F.(AMS) the TAPE B

1

5

0

Disc error

9

8

2

4

2

9

Display

TAPE AAG-1 TAPE BAG-2 TAPE AAG-2 TAPE AAG-3 TAPE AAG-4 TAPE AAG-5

8

9

TAPE AAG-6 TAPE BAG-2 TAPE BAG-3 TAPE BAG-4 TAPE BAG-5 TAPE BAG-6

2

9

TEL 13942296513 QQ 376315150 892498299

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11

HCD-DX10/RG4SR/RG20/RG30T

[FL T ube Test Mode]

• All fluorecent segments and LEDs are tested.

Q

Procedure:

1. Press ?/1 button to turn the set ON.

2. To enter the test mode, press the three buttons x , DISPLAY and GROOVE simultaneously.

3. Press DISPLAY and DISC SKIP/EX-CHANGE buttons simultaneously.

4. All segments and LEDs (without STANDBY LED) are turned on.

5. To exit from this mode, press ?/1 b utton to turn the set OFF.

[Version and Destination Display Mode]

• The version or destination is displayed.

TEL 13942296513 QQ 376315150 892498299

Procedure:

1. Press ?/1 button to turn the set ON.

2. To enter the test mode, press the three buttons x , DISPLAY and GROOVE simultaneously.

3. Press DISPLAY and DISC 1 buttons simultaneously.

4. The version is displayed.

5. Press DISPLAY and DISC 2 buttons simultaneously.

6. The destination is displayed.

7. To exit from this mode, press ?/1 b utton to turn the set OFF.

[Key Check Mode]

• Keyboard check.

Procedure:

1. Press ?/1 button to turn the set ON.

2. To enter the test mode, press the three buttons x , DISPLAY and GROOVE simultaneously.

TEL

3. Press DISPLAY and DISC 3 b uttons simultaneously, and the key check mode is activated.

4. In the key check mode, the fluorecent indicator displays “KEY 0 VOL 0”. Each time a button is pressed, “KEY 0” value increases. However, once a button is pressed, it is no longer taken into account. “VOL 0” value increases like 1, 2, 3 ... if rotating VOLUME knob clockwise, or it decreases like 0, 9, 8, ... if rotating counterclockwise.

5. To exit from this mode, press ?/1 b utton to turn the set OFF.

3

7

6

3

1

13942296513

5

1

5

[VACS ON/OFF Mode]

• This mode is used to switch ON and OFF the VACS (Variable

0

Attenuation Control System).

Procedure:

1. Press ?/1 button to turn the set ON.

2. To enter the test mode, press the three buttons x , DISPLAY and GROOVE simultaneously.

3. Press CD SYNC button while pressing DISPLAY button. The message “VACS OFF” or “VACS ON” appears.

4. To exit from this mode, press ?/1 button to turn the set OFF.

[Equalizer Test Mode]

• This mode is used to test the function of the equalizer.

Procedure:

1. Press ?/1 button to turn the set ON.

2. To enter the test mode, press the three buttons x , DISPLAY and GROOVE simultaneously.

3. Press m button while pressing DISPLAY b utton. The message

4. The value increases like + 2, + 4 ... if pressing > button

5. Press M button while pressing DISPLAY b utton. The message

6. The value increases like + 2, + 4 ... if pressing > button

7. To exit from this mode, press ?/1 button to turn the set OFF.

[CD Ship Mode (No Memory Clear) ]

• This mode moves the pickup to the position durable to vibra-

Q

tion. Use this mode when returning the set to the customer after repair.

Procedure:

1. Press ?/1 button to turn the set ON.

2. Press CD button and ?/1 button simultaneously.

3. The "STANDBY" display blinks instantaneously, and the CD

–

“BASS + 0” is displayed.

while DISPLAY button is still depressed, or it decreases like 2, - 4 ... if pressing . button.

+

“TRE + 0” is displayed.

while DISPLAY button is still depressed, or it decreases like

- 2, - 4 ... if pressing . button.

7

3

ship mode is set.

8

6

3

9

1

5

2

1

5

4

0

9

8

9

8

2

4

2

9

8

9

2

9

TEL 13942296513 QQ 376315150 892498299

9

[CD Service Mode]

• This mode can run the CD sled motor freely . Use this mode, for instance, when cleaning the pickup.

Procedure:

1. Press ?/1 button to turn the set ON.

2. Select the function “CD”.

3. To enter the test mode, press three buttons x , DISPLAY , and

GROOVE simultaneously.

4. Press DISPLAY and OPEN/CLOSE b uttons simultaneously.

5. The CD service mode is selected.

6. With the CD in stop status, press

to outside track, or press m button to inside track.

7. To exit from this mode, perform as follows:

1) Move the pickup to the most inside track.

2) Press ?/1 button to turn the set OFF.

Note: • Always move the pickup to most inside track when exiting from

12

this mode. Otherwise, a disc will not be unloaded.

• Do not run the sled motor excessively , otherwise the gear can be chipped.

w

–

.

xia

M

b utton to move the pickup

+

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6

3

.

c

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AM RF Signal generator

30% amplitude modulation by 400Hz signal output level : as low as possible

AM ANTENNA terminal (JK101)

set

r

HCD-DX10/RG4SR/RG20/RG30T

SECTION 4

ELECTRICAL ADJUSTMENTS

TUNER SECTION

7

Q

TEL 13942296513 QQ 376315150 892498299

TEL

3

FM Tuned Level Adjustment

FM RF Signal generator

Carrier frequency : 98 MHz Modulation : AUDIO 1 kHz, 75 kHz deviation (100%) Output level : 30 dB (at 75

Procedure:

1. Supply a 98 MHz signal at 28 dB from the ANTENNA terminal.

2. Tune the set to 98 MHz.

3. Adjust RV101 to the point (moment) when the TUNED indicator will change from going off to going on.

Adjustment Location: MAIN board

Null Adjustment

FM RF Signal generator

Carrier frequency : 98 MHz Modulation : AUDIO 1 kHz, 75 kHz deviation (100%) Output level : 60 dB (at 75

13942296513

6

3

1

75

Ω

75

Ω

coaxial

open)

Ω

coaxial

open)

5

1

5

FM ANTENNA terminal (JK101)

set

0

Q

AM IF Adjustment

Procedure:

1. Set the frequency of the AM RF signal generator to 1000 kHz

2. Tune the set to AM 1000 kHz (at 10 kHz step) or 999 kHz (at 9

3. Adjust IFT101 so that the reading on level meter becomes in

7

3

4

2

9

8

set

headphones jack (JK601)

(at 10 kHz step) or 999 kHz (at 9 kHz step).

kHz step).

maximum.

8

0

5

1

5

1

3

6

9

16 Ω

9

8

2

4

level mete

9

2

8

9

2

9

TEL 13942296513 QQ 376315150 892498299

9

Procedure:

1. Supply a 98 MHz signal at 60 dB from the ANTENNA terminal.

2. Tune the set to 98 MHz.

3. Measure voltage between pin 21 and pin 23 of IC 101. Adjust

Adjustment Location: MAIN board

[MAIN BOARD] Component side

T101 until the voltage becomes 0 V.

T101:NULL

T101

RV101

IFT101 : AM IF

RV101:FM TUNED LEVEL

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HCD-DX10/RG4SR/RG20/RG30T

CD SECTION

7

Q

Note :

1. CD Block is basically designed to operate without adjustment. Therefore, check each item in order given.

2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.

3. Use an oscilloscope with more than 10MΩ impedance.

4. Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks.

RF Level Check

TEL 13942296513 QQ 376315150 892498299

Procedure :

1. Connect oscilloscope to pin q; (IC751).

2. Turned Power switch on.

3. Load a disc (YEDS-18) and playback.

4. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not.

3

CD board

IC751 pin q;

GND

6

oscilloscope

3

1

5

1

5

0

8

9

2

4

9

8

2

9

TEL 13942296513 QQ 376315150 892498299

Note : Clear RF signal wavefor m means that the shape “ ◊ ” can be clearly

distinguished at the center of the waveform.

RF signal waveform

VOLT/DIV : 200mV TIME/DIV : 500ns

TEL

Adjustment Location: CD board

[CD BOARD] (Component Side)

CN731

13942296513

level : 1.4 to 2.1 Vp-p

CN732

CN733

TP connected to pin q; (IC751) C746A

Q

3

7

6

3

1

5

1

5

0

8

9

2

4

9

8

2

9

14

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3

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SECTION 5

DIAGRAMS

HCD-DX10/RG4SR/RG20/RG30T

5-1. CIRCUIT BOARD LOCATION

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.

Q

TEL 13942296513 QQ 376315150 892498299

Q

(In addition to this, the necessary note is printed in each bloc k.)

Note on Schematic Diagram:

• All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.

• All resistors are in Ω and 1/ specified.

f

•

• C : panel designation.

• A : B+ Line.

• B : B– Line.

• H : adjustment for repair.

• Voltages and waveforms are dc with respect to ground

• V oltages are taken with a VOM (Input impedance 10 MΩ).

• Waveforms are taken with a oscilloscope.

• Circled numbers refer to waveforms.

• Signal path.

: internal component.

Note:

The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

under no-signal (detuned) conditions. Voltage variations may be noted due to normal produc-

tion tolerances. no mark : FM < >: CD [ ] : T APE

Voltage variations may be noted due to normal production tolerances.

T

E

F : FM E : PB (DECK A) d : PB (DECK B) G : REC (DECK B) J : CD

L

3

1

7

4

W or less unless otherwise

Note:

Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une piéce portant le numéro spécifié.

3

9

4

6

2

3

9

1

Note on Printed Wiring Boards:

• X : parts extracted from the component side.

• b : Pattern from the side which enables seeing.

• Indication of transistor.

These are omitted.

Q

B

CE

• Abbreviation CND : Canadian model AUS : Australian model AR : Argentina model SP : Singapore model TW : T aiw an model MX : Mexican model MY : Malaysia model E2 : 120V AC Area in E model E3 : 240V AC Area in E model E51 : Chilean and Peruvian model

6

5

1

5

These are omitted.

1

C

Q

B

E

3

5

0

Q

3

7

6

8

TRANS board

PANEL board

1

3

9

ADDRESS SENSOR board

DRIVER board

1

5

2

5

0

4

9

MOTOR board

9

8

2

8

4

2

VIDEO OUT board

POWER board

8

9

SPDL board SENSOR board

CD board

SUB TRANS board

MAIN board

9

2

9

TEL 13942296513 QQ 376315150 892498299

w

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6

• WA VEFORMS

1

IC751 rf (XOUT)

59 ns

3

.

4.9Vp-p

c

o

– MAIN BOARD – – PANEL BOARD –– CD BOARD –

2

IC102 wf (XOUT)

222 µs

3

L251

16.6 µs

(60.1 kHz)

m

3.2Vp-p

14.1Vp-p

4

IC601 qj (XTAL 6.0MHz)

167 ns

4.8Vp-p

1515

HCD-DX10/RG4SR/RG20/RG30T

5-2. BLOCK DIAGRAMS

TUNER/CD SECTION

EXCEPT RG20:AEP,UK

Q

JK101

Q

FM 75Ω

G

AM

3

1

ANT IN

RG20:AEP,UK

1

ANT IN

FND1

OSC OUT

FND1

IF OUT

7

VT

7

8

5

7IF OUT

8OSC OUT

5VT

6

3

TEL 13942296513 QQ 376315150 892498299

1

3

4

13

RB101

14

55

1511

67

9

CX101

Q102

Q101

RF IF AMP

10

24

15

18

17

19

1

5

FM

XIN

XOUT

FM OSC

VT1 IN

VT1

PD1

PLL

IC102

FM/AM IF

AM OSC

1

CF101 CF102

+B TU+12V

4.5MHz

FM

CL

CE

1

12

7

14

2VCO STOP

8IF REQ

6DO

4DI

5

3

DI

DO

CLK

CE

AM/FM IF MPX

1

FM IF

9

IF OUT

12

AM/IF

24

AM OSC

13

VCO STOP

8

IF REQ MUTE

20

AM RF IN

22

AM OSC

23

V REG

IC101

0

L OUT

R OUT

AM MIX OUT

FM SD ADJ

FMDET

TUNED

STEREO

11

10

18AM IF IN

19

R-CH

IFT101

3

5

6

7

+6.8V

RV101

FM TUNED

LEVEL

T101

NULL

5

AM IF

Q106

MUTE

8

9

L-CH

DO,CLK

A

MAIN

SECTION

C

MAIN

SECTION

2

4

9

• R-CH is omitted due to same as L-CH

• Signal Path

: FM

: CD

MASTER CONTROL

IC601(1/2)

TUNED

10

TU STEREO

9

8

2

9

TEL 13942296513 QQ 376315150 892498299

OPTICAL PICK-UP

BLOCK

(KSM-213-DCP/Z-NP)

DETECTOR

VCC

VC

T

A

B

C

D

E

F

LD

GND

PD

VR

F+

FOCUS

COIL

TRACKING

COIL

SLED

MOTOR

F

T+

T

M

E

+5V

L

1

CH1 OUTA

2

CH1 OUTB

27

CH4 OUTA

26

CH4 OUTB

11

CH21 OUTB

12

CH2 OUTA

Q731

LD

DRIVER

FCS/TRK COIL SL/SP MOTOR

DRIVER

IC781

1

CH1 INA

CH1 INB

CH4 INA

CH2 INB

122

3

4

25

9

4

TUNER MUTE OUT

77

DO

LC72131 BU2114 DO

95

DI

LC72131 DI

96

CLK

97

CE

LC72131 CE

93

ASP

IC731

58

VR

2

FIN 1

1

FIN 2

3

E

4

F

62

LDD

63

LDS

16

FD

15

TO

29

SLD

9

DEF

TES

HFL

JP+

JP-

CV+

CV-

SLOF

DATA

DRF

41RF SM

6

5

1

3

44SLI

49

36

37

33

32

40

39

35TOFF

38

52

50CLK

51CL

53CE

34TGL 54

10

9

1

16

15

19

20

12

13

17

14

56

61

57

54

18

28

26

27

DSP

IC751

EFMI

EFMO

DEF

TES

HFL

JP+

JP-

CLV+

CLV-

TOFF

VP

COIN

4.2M

CQCK

RWC

TGL

SHUTER IN/OUT

D MUTE

LIMIT SW

L CH

WRQE

SQ0UT

PDO

37

40R CH

35L MUTE

53

55

45XI

XO

44

58RESET

3

Q

R CH

D733

D735

X701

16.9344M

D732

3

Q771,773

MUTE

7

6

3

1

5

CD-L

1

SECTION

B

MAIN

5

0

8

CD A MUTE

6

CD WRQ

7

SQOUT

99

CD RESET OUT

3

COIN

98

SQCK

100

CD RWC

2

CD DRF

8

2

9

CD MOTOR-

CD NUMBER SENSOR

CD PIC UP/DOWN SW

4

9

2

8

9

IC701

73CD MOTOR +

9

4

MOTOR

74

68

70CD TRAY OPEN SW

71CD TRAY CLOSE SW

69

DRIVE

7

TBL ADDRESS

2

IC711

SENSOR

M

S701

OPEN/CLOSE

S711

BU UP/

DOWN

M721 TURN

MOTOR

SPINDLE

MOTOR

S01

LIMIT

M

w

18

CH3 OUTB

17

CH3 OUTA

w

CH3 INB

20

MUTE

w

SL+

27

SPD

7

.

Q775

x

SL-

31

30

i

a

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1

6

3

.

c

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5

4

CD SL+

CD SL-

1616

MAIN SECTION

7

3

Q203,205

PLAY/REC

CONTROL

Q604,607

A TRIG DRIVE

Q603,606

B TRIG DRIVE

Q605,608

CAP MOTOR

DRIVE

L251 BIAS

9

R-CH

Q201

MUTE

BIAS

OSC

Q214

4

Q209

PLAY/REC

SWITCH

81

TAPE SOL A

82

TAPE SOL B

80

MECHA VCC

6

2

Q210,213

BIAS

SWITCH

28

27

26

67

PHOTO SENSOR A

PHOTO SENSOR B

TAPE FWD REC SW B

XTAL 6.0MHZ

16

17

X601 6MHz

3

PB/REQ EQ AMP

CH1/A

1

CH1/B

2

REC OUT

9

Q211,212

SWITCH

66

TAPE B HALF25TAPE A HALF

XTAL 6.0MHZ

A

B

C

JK602

JK603

A PHOTO SENSOR

B PHOTO SENSOR

MOTOR H

MOTOR L

3

L-CH

LOUT

DO,CLK

R-CH

1

A SOL

B SOL

SFR601

CAP M+

Q

TEL 13942296513 QQ 376315150 892498299

INPUT

T

Q

SECTION

VIDEO

AUDIO

REC/PB

HEAD

ERASE

E

A MODE

B MODE

A HALF

B HALF

REC(FWD)

TUNER

CD

TUNER

VIDEO

OUT

LGAME

R

DECK-A

PB

HEAD

DECK-B

HEAD

L

MECHA DECK

IC201

PRE OUT

REC IN

MIX OUT

6

TAPE A/B

65

TAPE MODE SW B

TAPE MODE SW A

19

FUCTION

KEY

S601-609

1

5

11

6

19

86

KEY INPUT0

Q320,321

5

88

TAPE REC

TAPE BIAS

S612-620

AMS

91

20

FUCTION

KEY

Q207

MUTE

1

24

AMS IN

TAPE A/B

KEY INPUT1

5

3

87

TAPE REC MUTE

KEY INPUT2

21

FUCTION

KEY

S623-629

Q215

MUTE

79

TAPE MUTE OUT (PB)

VOLUME

VR601

1

VR ENCODER A

VR ENCODER B

13

14

31

5

CLK

94

MASTER CONTROL

BD3871 DATA/LATCH

POWER SW

84

Q651

LED

DRIVER

0

AUDIO SOUND

PROCESSOR

IC301

B1

7

OUT1

17

A1

5

SC

13

C1

9

SI

14

IC601(2/2)

LED601

(POWER)

OUT2

SEL1

MN1

R-CH

16

Q303

4

BUFFER

1

3

IC302

1

Q

22

SPEANA IN L

FLD601

FLOURESCENT

INDICATOR TUBE

1G 10G

39 33

P1 P22

..

47 50 52 6340 45

VF VF

Q803,804

MUTE

CONT

3

76

SYSTEM MUTE OUT

Q316

MUTE

7

6

78

STK MUTE

83

Q503,504

MUTE CONT

75

SPK RELY ON

POW SAVE

REMOTE IN

29

8

1

Q581

MUTE

DO

CLK

3

92

RESET

POWER DOWN IN

12

11

IC501

POWER

AMP

12

RG30T/RG4SR

TH501

IC602

1

DRIVER

2

3

1

CD ON/OFF

BU2114 LATCH

Q602 Q601

RESET

SWITCH

6

LED

9

16

13

5

CD +5V

FAN +B

LED +5.6V

TU +B

TU +12V

TC +12V

M +9V

CD +7V

µCOM +B

1

RESET

RM601

REMOTE

Q501

OVER LOAD DETECTOR

Q582,583

OVER HEAT DETECTOR

LED602-609

D809 -810

D601

2

5

+5V

3

REG

IC804

D602

Q584

FAN ON

SWITCH

0

1

Q308,309

PROTECT

DETECTOR

Q801,802

CD POWER

SWITCH

IC803

+5V

3

REG

2

IC802

+12V

3

REG

IC801

+9V

3

REG

4

D502

1

8

D811

Q311

PROTECT

CONT

Q305

MUTE CONT

POWER

AMP

9

Q306

MUTE

9

-VP

+B

-B

D543 D542

EVER +5.6V

HCD-DX10/RG4SR/RG20/RG30T

RG4SR

JK311

9

R CH

JK310

R CH

RG30T,RG4SR

D852

Q850,851

FAN

DRIVE

• R-CH is omitted due to same as L-CH

• Signal Path

9

2

T901

SUB TRANS

L

SURROUND SPK

OUTPUT

R

L

SPEAKER

R

JK601

PHONES

FAN

(M961)

: PB (DECK A)

: PB (DECK B)

: REC (DECK B)

: FM

: CD

9

DX10:AR,AUS

JW7

RG20:AEP,UK

JW6

DX10:MX/RG20:US,CND /RG30T/RG4SR

DX10:MX

DX10:AR,AUS/RG20 /RG30T/RG4SR

DX10:MX,MY,SP,

JW5

220/230

JW2

JW3

JW1

JW4

TW,E2,E3,E51

9

240

120

Q312

PROTECT

SWITCH

2

Q911

-30V REG

D541

D801-804

D812-815

3

8

Q314,315

RELAY DRIVE

4

VF

IC901

+5.6V

REG

D311

MAIN TRANS

1

RL1

9

T911

D902-905

Q901

RELAY DRIVE

2

8

RY901

TEL 13942296513 QQ 376315150 892498299

S901

VOLTAGE

SELECTOR

DX10:MY,SP,

TW,E2, E3,E51

AC IN

w

.

x

i

a

o

y

u

1

6

3

1717

.

c

o

m

Sony HCD-RG4SR,HCD-RG20,HCD-RG30T Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

TABLE OF CONTENTS

GENERAL

Case (Top)

DISASSEMBLY

CD door

Base unit

TEST MODE

ELECTRICAL ADJUSTMENTS

DIAGRAMS

MAIN SECTION