Sony HCD-GR5, HCD-RX50 Service Manual

HCD-GR5/RX50

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SERVICE MANUAL

TEL 13942296513 QQ 376315150 892498299

HCD-GR5/RX50 is the tuner, deck, CD and amplifier section in MHC-GR5/RX50.

Photo: HCD-GR5

Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY” and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation.

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13942296513

CD

SECTION

TAPE

DECK

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SECTION

Model Name Using Similar Mechanism HCD-H551 CD Mechanism Type CDM28-5BD19 Base Unit Type BU-5BD19 Optical Pick-up Type KSS-213BA/F-NP Model Name Using Similar Mechanism HCD-H551

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T ape Transport Mechanism T ype TCM-220WR2E

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AEP Model

UK Model

E Model

Tourist Model

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HCD-RX50

HCD-GR5

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CD player section

System Compact disc and digital Laser Semiconductor (λ = 780nm)

Laser output Max 44.6 µW*

Wavelength 780 – 790 nm Frequency response

Signal-to-noise ratio

Dynamic range More than 90 dB CD DIGITAL OPTICAL OUTPUT (Square optical connector jack,rear panel) Wavelength 600nm Output level -18dBm

T uner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

East European model:

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audio system

Emission duration: continuous

*This output is the value measured at a distance of 200mm from the objective lens surface on the Optical Pick-up Block with 7mm aperture.

2 Hz – 20 kHz (±0.5 dB)

More than 90 dB

65.0 – 75.0 MHz,

87.5 – 108.0 MHz

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SPECIFICATIONS

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Tourist model:

Other models:

Aerial FM lead aerial Aerial terminals 75 ohm unbalanced Intermediate frequency

AM tuner section

Tuning range

AEP, UK, East European models:

German models:

EA4,Thailand models:

76.0 – 108.0 MHz

87.5 – 108.0 MHz

10.7 MHz

MW: 531 – 1,602 kHz (with the interval set at 9 kHz) LW: 153 – 279 kHz (with the interval set at 3 kHz)

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

531 – 1,710 kHz(with the interval set at 9 kHz) 530 – 1,710 kHz(with the interval set at 10 kHz)

— Continue on next page —

COMPACT DISC DECK RECEIVER

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MICROFILM

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Other models:

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Antenna AM loop antenna,

Intermediate frequency

Amplifier section

(AEP,UK,German,East European models) DIN power output

Continuous RMS power output

TEL 13942296513 QQ 376315150 892498299

Music power output

(Other models) Peak music power output

Continuous RMS power output

MW: 531 – 1,602 kHz (with

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the interval set at 9 kHz) MW: 530 – 1,710 kHz (with the interval set at 10 kHz) SW: 5.95 – 17.90 MHz (with the interval set at 10 kHz)

External antenna terminals

450 kHz

40W+40W (6 ohms, at 1kHz, DIN)

50W+50W (6 ohms, at 1kHz, 10% THD)

85W+85W (6 ohms, at 1kHz, 10% THD)

800W

50W+50W (6 ohms, at 1kHz, 10% THD)

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General

Power requirements

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AEP,UK,German,East European models:

EA4,Thailand models:

Other models:

Power consumption

Dimensions Approx. 280 x 330 x 360 mm

Mass Approx. 7.5 kg (16 lb 9 oz)

Design and specifications are subject to change without notice.

• Abbreviation EA4: Without voltage selector Saudi Arabia model

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220 – 230 V AC, 50/60 Hz

220 – 240 V AC, 50/60 Hz

110 – 120 V, 220 – 240 V AC, 50/60 Hz Adjustable with the voltage selector

95 W

(11 1/8 x 13 x 14 1/4 in) (w/h/d) incl. projecting parts and controls

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Inputs

MIX MIC (phone jacks):

AUDIO IN:

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Outputs

PHONES (stereo phone jack):

SPEAKER: accepts impedance of 6 to

AUDIO OUT:

GR5 model: SUPPER WOOFER:

Tape player section

Recording system

Frequency response

Wow and flutter

sensitivity 1 mV, impedance 10 kilohms

13942296513

Audio (Phono Jacks) Voltage 450mV Impedance 47 kilohms

accepts headphones of 8 ohms or more.

16 ohms.

Audio (Phono Jacks) Voltage 450mV Impedance 1 kilohms

Voltage 1 V, impedance 1 kilohms

4-track 2-channel stereo

(DOLBY NR OFF) 40 – 13,000 Hz (±3 dB), using Sony TYPE I cassette 40 – 14,000 Hz (±3 dB), using Sony TYPE II cassette

0.3% W .RMS (NAB)

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MODEL IDENTIFICATION

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TEL 13942296513 QQ 376315150 892498299

— BACK PANEL —

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GR5 : E model GR5 : EA3,Taiwan, Tourist model GR5 : Singapore,Malaysia model GR5 : Hong Kong model GR5 : Indonesian model GR5 : EA4,Thailand model RX50 : AEP ,German model RX50 : UK model RX50 : East European model

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• Abbreviation EA3: With voltage selector Saudi Arabia model. EA4: Without voltage selector Saudi Arabia model.

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MODEL PARTS No.

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Parts No.

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4-988-833-0π 4-988-833-1π 4-988-833-2π 4-988-833-3π 4-988-833-4π 4-988-833-5π 4-988-834-0π 4-988-834-1π 4-988-834-2π

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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.

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.

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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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This caution

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label is located inside the unit.

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SAFETY-RELATED COMPONENT WARNING !!

COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMA TIC DIA GRAMS AND IN THE P ARTS 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.

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TABLE OF CONTENTS

1. SERVICING NOTE

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2. GENERAL .................................................................... 6

3. DISASSEMBLY

3-1. Front Panel ....................................................................... 8

3-2. TC Mechanism Deck ....................................................... 8

3-3. HP Board, JOG Board and PANEL Board ...................... 9

3-4. CD Block .........................................................................10

3-5. CD Mechanism Deck .......................................................10

4. MECHANICAL ADJUSTMENTS ......................... 11

5. ELECTRICAL ADJUSTMENTS

DECK Section .........................................................................11

TUNER Section .......................................................................14

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CD Section ..............................................................................16

6. DIAGRAMS

6-1. Block Diagrams

• CD Section.....................................................................18

• Main Section ..................................................................19

• Tuner Section

(AEP, UK, German, East European Model) ..................21

• Tuner Section (Tourist Model) ..................................... 22

• Deck Section ..................................................................23

6-2. Circuit Boards Location ...................................................24

6-3. Printed Wiring Board — Panel Section —........................25

6-4. Schematic Diagram — Panel Section — ......................27

6-5. Schematic Diagram — Main Section — ........................31

6-6. Printed Wiring Board — Main Section — ......................35

6-7. Schematic Diagram — Deck Section — ........................39

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6-8. Printed Wiring Board — Deck Section — ......................43

6-9. Schematic Diagram — CD Section — ............................46

6-10.Printed Wiring Board — CD Section — .........................49

6-11.Schematic Diagram — Tuner Section —

(AEP, UK, German, East European Model)......................52

6-12.Schematic Diagram — Tuner Section —

(Tourist Model) .................................................................55

6-13.Printed Wiring Board — Tuner Section —

(AEP, UK, German, East European Model) .....................58

(Tourist Model) ................................................................ 59

6-14.IC Pin Functions

• IC501 Graphic Control (µPD78042FGF-027-3B9)........61

• IC701 Master Control (TMP87CP64YF-6521).............. 62

6-15.IC Block Diagrams .......................................................... 65

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7. EXPLODED VIEWS

7-1. Case Section .....................................................................71

7-2. Back Panel Section ..........................................................72

7-3. Front Panel Section 1 .......................................................73

7-4. Front Panel Section 2 .......................................................74

7-5. CD Mechanism Section (CDM28-5BD19) ......................75

7-6. Base Unit Section (BU-5BD19) .......................................76

7-7. TC Mechanism Section 1 (TCM-220WR2E) ..................77

7-8. TC Mechanism Section 2 (TCM-220WR2E) ..................78

8. ELECTRICAL PARTS LIST....................................79

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SECTION 1

SERVICING NOTE

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK

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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.

HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF

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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 DIODE AND FOCUS SEARCH OPERATION CHECK

Carry out the “S curve check” in “CD section adjustment” and check that the S curve waveform is output two times.

Note for installation (ROTARY ENCODER)

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BU cam

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groove

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Note :

When attaching the Base unit, insert the section A into the groove of BU cam.

Section A

Note :

When attaching the BU cam, engage the Rotary encoder switch as shown in the figure.

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13942296513

[FL Display Tube, LED All Lit and Key Check mode]

When the TUNER/BAND , DISPLAY , and MENU 2 buttons are pressed simultaneously, the FL display tube and LEDs will all light up. Press any button to enter the key check mode. When the key check mode is entered, the FL display tube displays “K 1 J0 V0”. Each time a button is pressed, the counter increases in the following order, K 2 n K 3 n K 4. If buttons already pressed once are pressed again, the counter will not increase. When the VOLUME knob is rotated in the + direction, the count increases in the following order. V1 n V2 n V3. When rotated in the–direction, it decreases in the following order. V0 n V9 n V8. When the AMS dial is rotated in the clockwise direction, the count increases in the following order. J1 n J2 n J3. When rotated in the counterclockwise direction, it decreases in the following order. J0 n J9 n J8. T o exit form the test mode, press the TUNER/BAND , DISPLA Y , MENU 2 buttons simultaneously again.

Insert a tapering driver into the aperture of the unit bottom, and turn in the direction of arrow.

*

To close the disc tray, turn the

driver in the reverse direction.

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[Switching the channel step 9 KHz/10 KHz]

Press ENTER/NEXT button and POWER button simultaneously to switch the AM channel step 9 KHz and 10 KHz. Be sure not to change with carelessness.

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SECTION 2

GENERAL

Index to Parts and Controls

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Refer to the pages indicated in parentheses for details on how to use the controls. Controls with an asterisk have indicators on themselves.

Front Panel

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·

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@ª ª / · (reverse side play / front side play) button

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#º p (stop) button #¡ Deck A #™ § EJECT button #£ CD SYNCHRO button #¢ r REC button #∞ P PAUSE button #§ Deck B

!™ !£ !¢

MULTI FUNCTION CONTROL buttons

!∞ !

§

The buttons you can operate the CD player,

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¶

tuner and the timer light up.

!• !ª

CD player

@º @¡ @™ @£ @¢

C D CONTINUE SHUFFLE PROGRAM REPEAT

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This section is extracted from instruction manual.

Rear Panel

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(AEP, UK, German, East European models)

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1 MD OUT / IN jacks 2 CD DIGITAL OUT OPTICAL jack 3 SPEAKER L / R connectors 4 ANTENNA terminals

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@∞ @§ @¶ @•

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@ª #º

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#¡

#™

1 Disc tray 2 POWER switch 3 LOOP button 4 TIMER button 5 PHONES jack 6 DISPLAY button 7 SURROUND button 8 MIX MIC jack 9 MULTI FUNCTION CONTROL buttons 0 FREQUENCY +/– buttons !¡ JOG dial !™ MENU 1 – 3 button !£ § OPEN / CLOSE button !¢ ﬂ (play / pause) button !∞ p (stop) button !§ P FILE button !¶ EFFECT ON / OFF button !• TUNER / BAND button !ª FUNCTION button @º ENTER / NEXT button @¡ GROOVE button @™ DBFB button @£ VOLUME control @¢ KARAOKE PON / MPX button @∞ HIGH SPEED DUBBING button @§ DIRECTION button @¶ DOLBY NR button

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@• 0 / ) (rewind / fast forward) button

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Tuner

TUNING

TUNER

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TUNER

MEMORY

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TIMER CLOCK SET SELECT SLEEP

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STEREO

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MONO

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(E, EA, Hong Kong, Malaysia, Singapore, T aiwan, T ourist, Thailand, Indonesian models)

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1 MD OUT / IN jacks 2 CD DIGITAL OUT OPTICAL jack 3 SPEAKER L / R connectors 4 SUPER WOOFER jack 5 ANTENNA terminals 6 Voltage selector (except for EA4, Thailand

models)

• Abbreviation EA4: Without v oltage selector Saudi Arabia model

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TEL 13942296513 QQ 376315150 892498299

Display Window

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1!™23 456789 0 !¡

SUR 12

1 SUR indicators 2 indicator 3 Timer indicators 4 Karaoke PON / MPX indicators  5 DOLBY NR indicator 6 Tuning indicator 7 Direction mode indicators 8 DBFB indicator 9 CD playback indicators 0 Music calendar !¡ VOLUME indicators !™ Tuner indicators !£ Multi display !¢ Radio frequency / playing time / sound

frequency level indications

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12 REC SLEEP

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MPX

DOLBY NR

B OFF

PON

TUNED MONO STEREO

MANUAL PRESET

AUTO

SYNC

!£ !¢

RELAY

REC

1DISK S SHUFFLE REPEAT 1 STEP

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DBFB ALL PROGRAM

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12345

678910 11 12 13 14 15 16 17 18 19 20

khz dB Mhz MIN

13942296513

Remote (RM-SD50)

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VOL

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1 SLEEP button 2 LOOP button 3 CD button 4 TUNER / BAND button 5 DECK A / DECK B button 6 FUNCTION button 7 / button 8 MUSIC MENU ON / OFF button 9 / button 0 POWER switch !¡ (pause) button !™ (stop) button  !£ / AMS* button !¢ / (rewind / fast forward)

button

!∞ EDIT button !§ CHECK button !¶ CLEAR button !• VOL (+ / –) button  * AMS=Auto Music Sensor 

+

–

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+ –

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0 !¡ !™

!£

!¢ !∞

!§

!¶

!•

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SECTION 3

DISASSEMBLY

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

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3-1. FRONT PANEL

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Remove the connectors (MAIN board: CN402, CN702) (HP board: CN513)

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CN402

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Two screws (+BVTP2.6X8)

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CN702

CN513

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Two screws

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3-2. TC MECHANISM DECK

13942296513

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Remove the claws (Three positions)

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TC mechanism deck

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Two screws (+BVTT3X8)

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(+BVTT3X8)

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Three screws (+BVTP2.6X8)

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Cassette holder

assembly (A), (B)

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Torsion spring (L), (R)

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Push the EJECT button.

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Remove the claws (Four positions)

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3-3. HP BOARD, JOG BOARD AND PANEL BOARD

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Note: It will be easy to remove if you push

lightly from the hole of the JOG board with some screwdrivers or etc.

Screw driver

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Two screws (+BVTP2.6X8)

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HP board

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Nut

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Knob (JOG) * Note

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JOG board

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Nut

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Knob (VOL) * Note

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PANEL board

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Two claws

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Six screws (+BVTP2.6X8)

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Six screws (+BVTP2.6X8)

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Three claws

!¡

Claw

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3-4. CD BLOCK

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Remove the connectors (MAIN board: CN201) (LOADING board: CN291)

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CD block (CD mechanism deck and CD chassis)

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Two screws (+BVTP3X8)

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PC board holder

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3-5. CD MECHANISM DECK

13942296513

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Remove the CD mechanism

deck direction of arrow .

CN201

CN291

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Two screws (+BVTP3X8)

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SECTION 4

MECHANICAL ADJUSTMENTS

Precaution

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TEL 13942296513 QQ 376315150 892498299

1. Clean the following parts with a denatured alcohol-moistened

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swab:

2. Demagnetize the record/playback head with a head demagnetizer.

3. Do not use a magnetized screwdriver for the adjustments.

4. After the adjustments, apply suitable locking compound to the parts adjusted.

5. The adjustments should be performed with the rated power supply voltage unless otherwise noted.

Torque Measurement

FWD

FWD back tension

REV

REV back tension

FF/REW

FWD tension

REV tension

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record/playback heads pinch rollers erase head rubber belts capstan idlers

Torque Torque meter Meter reading

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CQ-102C

CQ-102RC

CQ-201B

CQ-403A

CQ-403R

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36 to 61 g • cm

(0.5 - 0.84 oz • inch)

2 to 6 g • cm

(0.02 - 0.08 oz • inch)

36 to 61 g • cm

(0.5 - 0.84 oz • inch)

2 to 6 g • cm

(0.02 - 0.08 oz • inch)

61 to 143 g • cm

(0.85 - 1.99 oz • inch)

100 g or more

(3.53 oz or more)

100 g or more

(3.53 oz or more)

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DECK SECTION 0 dB=0.775V

1. Demagnetize the record/playback head with a head damagnetizer .

2. Do not use a magnetized screwdriver for the adjustments.

3. After the adjustments, apply suitable locking compound to the parts adjusted.

4. The adjustments should be performed with the rated power supply voltage unless otherwise noted.

5. The adjustments should be performed in the order g iven in this service manual. (As a general rule, playback circuit adjustment should be completed before performing recording circuit adjustment.)

6. The adjustments should be performed for both L-CH and R-CH.

7. Switches and controls should be set as follows unless otherwise specified.

Record/Playback Head Azimuth Adjustment (Deck A, Deck B)

Note: Perform this adjustments for both decks.

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SECTION 5

ELECTRICAL ADJUSTMENTS

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DOLBY NR switch: OFF

P-4-A100

WS-48B

P-4-L300

test tape P-4-A100

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(10kHz, –10dB)

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SignalTape

10 kHz, –10 dB

3 kHz, 0 dB

315 Hz, 0 dB

MAIN board

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CN403 Pin

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Azimuth Adjustment

Tape Speed Adjustment

Level Adjustment

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(L-CH) (R-CH)

level meter

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Used for

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set

MAIN board CN403 Pin

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(GND)

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–

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Procedure:

1. Mode : Playback

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2. T urn the adjustment scre w and check output peaks. If the peaks do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within 1 dB of peak.

L-CH peak output

TEL 13942296513 QQ 376315150 892498299

screw position

3. Mode: Playback

test tape P-4-A100 (10kHz, –10dB)

R-CH peak

TEL

3

level

set

7

6

within 1dB

L-CH peak

main board CN403 Pin

3

(L-CH)

L

R

3

2

(GND)

1

R-CH peak

oscilloscope

13942296513

5

1

within 1dB

screw position

5

Tape Speed Adjustment (Deck A)

0

Note: Start the Tape Speed adjustment as below after setting the

test mode. The tape speed can be changed with the HIGH SPEED DUBBING button during the test mode.

Method :

1. Turn the power switch on.

2. Press the DISPLAY button, MENU 1 button and TUNER/ BAND button simultaneously.

Procedure :

Mode: Playback

test tape WS-48B (3kHz, 0dB)

1. Insert the WS-48B into the deck A to playback.

2. Press the HIGH SPEED DUBBING button. Then at HIGH

SPEED mode.

3. Adjust the RV652 on the AUDIO board so that the frequency

counter reading becomes 6,000 ± 90 Hz.

4. Press the HIGH SPEED DUBBING button again to be set the

NORMAL SPEED mode.

5. Set to the playback mode.

6. Adjust the RV651 on the AUDIO board so that the frequency

Q

counter reading becomes 3,000 ± 90 Hz.

3

7

8

6

3

set

1

2

9

MAIN board CN403 Pin

5

1

5

4

9

frequency counter

3

(L-CH)

1

(R-CH)

8

0

9

+ –

2

8

4

2

9

8

9

2

9

TEL 13942296513 QQ 376315150 892498299

9

Pin 1 (R-CH)

Waveform of oscilloscope

in phase

4. After the adjustments, apply suitable locking compound to the parts adjusted.

Adjustment Location: Playback Head (Deck A)

FWD side

45˚

90˚

Record/Playback/Erase Head (Deck B)

Adjustment screw

135˚ 180˚

wronggood

REV side

Frequency difference between deck A and deck B the beginning of the tape should be within ± 1.5%.

Adjustment Location: AUDIO board

Playback Level Adjustment (Deck A, Deck B)

Procedure:

Mode: Playback

test tape P-4-L300 (315Hz, 0dB)

set

MAIN board CN403 Pin

Deck A is RV311 (L-CH) and RV411 (R-CH), deck B is RV301 (L-CH) and RV401 (R-CH) so that adjustment within the following adjustment level.

Adjustment level:

CN403 playback level: 301.5 to 338.3 mV (–8.2 to –7.2 dB) level differ ence between the channels: within ± 0.5 dB

Adjustment Location: AUDIO board

level meter

3

(L-CH)

1

(R-CH)

w

.

xia

o

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1

6

3

— 12 —

.

c

o

m

Record Bias Adjustment (Deck B)

7

Q

TEL 13942296513 QQ 376315150 892498299

3

Procedure:

1. Press FUNCTION button to Select MD.

2. Mode: Record

AF OSC

3. Mode: Playback

recorded position

4. Confirm playback the signal recorded in step 2 become adjustment level as follows. If these levels do not adjustment lev el, adjust the R V341 (L-CH) and RV441 (R-CH) on the A UDIO board to repeat steps 2 and 3.

6

MD IN

1) 315Hz

2) 10kHz

attenuator

set

MAIN board CN403 Pin

1

3

}

50 mV (–23.8 dB)

600

5

set

3

(L-CH)

1

(R-CH)

1

5

blank tape CS-123

level meter

0

Record Level Adjustment (Deck B)

Procedure:

1. Press FUNCTION button to Select MD.

2. Mode: Record

3. Mode: Playback

4. Confirm playback the signal recorded in step 2 become adjustment level as follows. If these levels do not adjustment lev el, adjust the R V301 (L-CH) and R V351 (R-CH) on the MAIN board to repeat steps 2 and 3.

8

AF OSC

9

attenuator

recorded portion

2

4

MD IN 315Hz 50mV (–23.8 dB)

600

set

8

9

MAIN board CN403 Pin

set

2

3

(L-CH)

1

(R-CH)

9

blank tape CS-123

level meter

TEL 13942296513 QQ 376315150 892498299

Adjustment level: The playback output of 10 kHz le vel differ ence

TEL

13942296513

Adjustment Location: AUDIO board

Adjustment Location: [AUDIO BOARD] (Conductor Side)

RV341 (L CH), 441 (R CH) Record Bias Adjustment

RV301

RV401

RV301 (L CH), 401(R CH) Playback Level Adjustment (Deck B)

RV441

against 315 Hz reference should be ± 0.5 dB.

RV651 (Normal speed) RV652 (High speed)

RV341

Tape Speed Adjustment

RV651

RV311

RV411

RV311 (L CH), 411 (R CH) Playback Level Adjustment (Deck A)

Q

RV652

Q

Adjustment level:

7

3

Adjustment Location: MAIN board

[MAIN BOARD] (Component Side)

1

3

6

CN403 PB level: 47.3 to 53.1 mV (–24.3 to –23.3 dB)

5

1

5

RV351 Record Level Adjustment (R CH)

0

8

4

2

9

3

1

CN403

RV301 Record Level Adjustment (L CH)

9

8

RV351

IC401

RV301

2

9

w

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3

— 13 —

.

c

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TUNER SECTION 0dB=1µV

Q

Note: 1. As a front-end (FE1) is difficult to repair if faulty, replace

it with new one.

2. No adjustment is needed due to a tuner pack.

AM Tuned Level Adjustment Note: FM Tuned Level adjustment should be performed after this

AM Tuned Level Adjustment.

Setting:

Band: AM or MW

TEL 13942296513 QQ 376315150 892498299

AM RF SSG

30% amplitude modulation by 400Hz signal

Modulation: 999 kHz (at 9 kHz step)

Procedure:

1. Set the output of SSG so that the input lev el of the set becomes 55 dB.

2. Tune the set to 999 kHz or 1,050 kHz.

3. Adjust R V41 to the point (moment) when the TUNED indicator

TEL

will change from going off to going on.

Adjustment Location: TCB board

7

3

1,050 kHz (at 10 kHz step)

6

loop antenna

1

3

Field strength dB (µV/m) = SSG output level dB (µV/m) –26dB.

13942296513

5

60cm

1

5

0

loop antenna (Supplied accessories)

Adjustment Location: [TCB BOARD] (Component Side)

Q

AM antenna terminal (TM1)

7

3

8

6

set

3

9

1

5

2

1

4

0

5

RV41 AM T uned Level Adjustment

9

8

9

8

RV41

2

4

2

9

8

9

2

9

TEL 13942296513 QQ 376315150 892498299

9

FM Tuned Level Adjustment Note: This adjustment should be after AM Tuned Le vel Adjustment.

Setting:

Band: FM

FM RF stereo signal generator

75

Ω

coaxial

set

Carrier frequency : 98MHz Modulation : AUDIO 1kHz, 75kHz

Output level : 25dB (at 75

Procedure:

1. Supply a 25 dB 98 MHz signal from the ANTENNA terminal.

2. Tune the set to 98 MHz.

3. Adjust R V42 to the point (moment) when the TUNED indicator will change from going off to going on.

Adjustment Location: TCB board

deviation (100%)

Ω

open)

FM ANTENNA terminal (TM1)

RV42 FM Tuned Level Adjustment

IC41RV42

FE1

TM1

w

.

xia

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1

6

3

— 14 —

.

c

o

m

SW OSC Voltage Adjustment

Q

TEL 13942296513 QQ 376315150 892498299

(Tourist model)

Q

Setting:

Band: SW

Procedure:

1. Connect digital Voltmeter to diode D1 center lead and ground.

2. Adjust for a following value reading on digital voltmeter.

SW

SW T racking Adjustment (Tourist model)

Setting:

Band: SW

7

3

Set frequency

5.95 MHz

17.9 MHz

AM RF SSG

6

3

1

5

Adjustment

part

T2

CV2

1

5

0

Reading on digital

voltmeter

1.2 ± 0.1 V

8.5 ± 0.2 V

level meter

Adjustment Location: [TCB BOARD] — Component Side —

8

9

2

4

IC41

9

8

2

9

D1, CV2, T2 SW OSC Voltage Adjustment

CV2

CV1

D1

T1

T2

CV1, T1 SW Tracking Adjustment

9

TM1

TEL 13942296513 QQ 376315150 892498299

set

30% amplitude modulation by

TEL

400Hz signal

13942296513

Procedure:

Adjust for maximum reading on level meter.

Set frequency

SW

• Repeat the procedures is each adjustment several times, and the frequency coverage and tracking adjustment should be f inally done by the trimmer capacitors.

7 MHz

17 MHz

AM ANTENNA terminal

Adjustment

part

T1

CV1

SPEAKER terminal

Q

3

7

6

3

1

5

1

5

0

8

9

2

4

9

8

2

9

w

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1

6

3

— 15 —

.

c

o

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CD SECTION

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.

5. Adjust the focus bias adjustment when optical block is replaced.

Focus Bias Adjustment

TEL 13942296513 QQ 376315150 892498299

Procedure:

1. Connect oscilloscope to test point TP (RF). (Ground terminal : TP (VC))

2. Turned Power switch on.

3. Put disc (YEDS-18) in and playback.

4. Adjust RV101 so that the waveform is clear. (Clear RF signal waveform means that the shape “ clearly distinguished at the center of the waveform.)

5. After adjustment, check the RF signal level.

• RF signal

VOLT/DIV: 200 mV

TEL

TIME/DIV: 500 nS

BD board

3

TP (RF) TP (VC)

7

oscilloscope

6

3

1

13942296513

5

1

” can be

5

S Curve Check

0

Procedure :

1. Connect oscilloscope to test point TP (FEO).

2. Connect between test point TP (FOK) and Ground by lead wire.

3. Turn Power switch on.

4. Put disc (YEDS-18) in and turned Power switch on again and actuate the focus search. (actuate the focus search when disc table is moving in and out.)

5. Check the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 2.4 ±

0.7 Vp-p.

S-curve waveform

6. After check, remove the lead wire connected in step 2.

Note: • Try to measure several times to make sure than the ratio of

A : B or B : A is more than 10 : 7.

7

3

Q

• Take sweep time as long as possible and light up the brightness to obtain best waveform.

8

BD board

TP (FEO) TP (VC)

1

3

6

9

5

4

2

oscilloscope

symmetry

A

B

0

5

1

2

8

9

within 2.4 ± 0.7 Vp-p

8

9

4

2

9

8

9

2

9

TEL 13942296513 QQ 376315150 892498299

9

level: 1.3 ± 0.3 Vp-p

RF Level Check

Procedure :

BD board TP (RF)

TP (VC)

1. Connect oscilloscope to test point TP (RF) on BD board.

2. Turned Power switch on.

3. Put disc (YEDS-18) in and playback.

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

Note: Clear RF signal waveform means that the shape “

clearly distinguished at the center of the waveform.

RF signal waveform

oscilloscope

” can be

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

level: 1.3 ± 0.3 Vp-p

w

.

xia

o

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1

6

3

— 16 —

.

c

o

m

E-F Balance Check

7

Q

TEL 13942296513 QQ 376315150 892498299

3

Procedure:

1. Connect test point TP703 (ADJ2) on MAIN board to Ground with a lead wire.

2. Connect oscilloscpe to test point TP (TEO).

3. Turned Power switch on.

4. Put disc (YEDS-18) in and playback.

5. Confirm that the oscilloscope waveform is symmetrical on the top and bottom in relation to 0Vdc, and check this level.

Traverse waveform

0V

Specified level: • x 100 = less than ± 7%

6

BD board

TP (TEO) TP (VC)

A – B

2 (A + B)

• A + B = 300 ± 100 mVp-p

3

1

5

oscilloscope

1

5

0

A

B

level: 300 ± 100 mVp-p

Adjustment Location: [BD BOARD] — Component Side —

[MAIN BOARD] — Conductor Side —

8

RV103

IC104

9

RV101

TEO

VC

2

FEO

RV102

RF

IC101

4

GND

9

TEI

FEI

8

FOK

PCK

2

IC102

9

TEL 13942296513 QQ 376315150 892498299

6. Remove the lead wire connected in step 1.

TEL

13942296513

Focus/Tracking Gain Adjustment (RV102, RV103)

This gain has a margin, so even if it is slightly off. There is no problem. Therfore, do not perform this adjustment. Please note that it should be fixed to mechanical center position when you moved and do not know original position.

Q

3

7

6

3

5

1

IC701

1

TP703 (ADJ2)

5

0

8

9

2

4

9

8

2

9

w

.

xia

o

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1

6

3

— 17 —

.

c

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HCD-GR5/RX50

6-1 BLOCK DIAGRAMS

- CD SECTION -

Q

3

7

6

3

1

SECTION 6

DIAGRAMS

5

1

5

0

8

9

2

4

9

8

2

9

OPTICAL PICK-UP BLOCK

IC101 (1/2)

RV102

FOCUS

GAIN

RV103

GAIN

Q101,102

FOCUS/TRACKING SERVO

EFM COMPARATOR

35

RF1

36

PD2

F

38 39

E

2

FE1

1

FEO

42

TEO

44

TEI

LD

33

PHD

34

18 17

FOCUS / TRAKING

12 11

16

SLO SL+

FE BIAS

XRST

25

7

XRESET

TRACKING

COIL DRIVE

IC102 (1 / 2 )

FOCUS

COIL DRIVE

SLED

SERVO

IC101 (2 / 2)

RFO

C,OUT

SENS

FOK

DATA

XLT

CLK

FE-O

FE-M

TA-M

TA-O

FGD

31 23

24 25 21 20 19

37

6 7

12 13

4

19

9

14

Q

RV101 FOCUS

BIAS

Q

14 55

54

1 56 57 59

B+

Q103

FOCUS SW

3

RF CNIN

SEIN FOK DATAO XLTO CLKO

3

7

MDP

DETECTOR K

E

A

TEL 13942296513 QQ 376315150 892498299

B

LASER DIODE

TEL

M102

SLED MOTOR

M101

SPINDLE MOTOR

B+

A

D

C

B

F

1 4

2 5

10

6

13942296513

TRACKING

FOCUS

COIL

26

.

M

27

1

.

M

2

COIL

2-AXIS DEVICE

SLED / SPINDLE

MOTOR DRIVE

IC102 (2 / 2)

SLED MOTOR

DRIVE

SPINDLE MOTOR

DRIVE

TRACKING

LD DRIVE

T-

T+

F-

F+

25

4

3

IC200

39

DOUT

IC103

DIGITAL SIGNAL

PROCESSOR

CLV SERVO

CLOCK

XLAT

DATA

53

52

51

1

3

6

M

M903

LOADING MOTOR

CD

DIGITAL OUT

OPTICAL

XTAI

34 4 21

PCMD

20

LRCK

22 3

BCLK

XRST

SENS

SQS0

SCOR

SQCK

50

49

46

47

43

0

5

1

5

S291 LOAD OUT S292 LOAD IN

IC201

LOADING MOTOR DRIVER

2

OUT1

10

OUT2

IN1 IN2

X101

16.9344MHz

5 • 6

XTI

CKO

2

DATA

1

LRCK BCLK

L OUT

R OUT

DATA

26 28 27

9

8

5

6

DIGITAL FILTER

D/A CONVERTER

XTO

16

13

MLAT

CLOCK

CD CLK CD DATA DF LAT SCOR SQ DATA SQ CLK SENS FOCUS SW

4

2

XRST XLAT

OUT SW IN SW

LOAD IN

LOAD OUT

IC104

L-CH

R-CH

9

8

MAIN

SECTION

(page 19)

2

C

9

TEL 13942296513 QQ 376315150 892498299

9

w

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6

3

— 18 —

.

c

o

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• R CH:Same as L CH

• SIGNAL PATH

:CD

:digidal out

— MAIN SECTION —

Q

TEL 13942296513 QQ 376315150 892498299

B

DECK

SECTION

(Page 23)

T

E

A

TUNER

SECTION

(*)

C

CD SECTION (Page 18)

AEP,UK,G,EE MODEL : (Page 21)

*

JE MODEL : (Page 22)

w

3

J801

MD

(AUDIO)

IN

L

PB L

REC L

PLAY REC/PB

A SHUT B SHUT

B HALF

A HALF A PLAY B PLAY

PB A/B

NORM/HIGH

BIAS ON/OFF

RM ON/OFF NR ON/OFF

REC/PB

PAS/DOL

L

LM ON/OFF

CAP M H/L

A TRG B TRG

TRIG H/L

CAP M ON/OFF

ST L

COM DATA

COM CLK

COM DIN

STEREO

TUNED

ST CE MUTE

L CH

SCOR

DF LAT

SENS

X RST

CD CLK

CD DATA

FOCUS SW

SQ CLK

SQ DATA

X LAT

OUT SW

IN SW

LOAD IN

LOAD OUT

w

7

1

3

w

J601 MIX MIC

IC802 INPUT SELECTOR

v TC ST CD

9

DA CK

6

1 2 4 5

55

TC RELAY A SHUT

56 57

B SHUT

58

B HALF

59

A HALF

60

220 A PLAY

61

220 B PLAY

80

TC A

81

NORM BIAS OFF

82 83

REC MUTE NR OFF

84 85

PB

86

PASS AMP/DOLBY

4

87

LINE MUTE ON CAP M HIGH

88 89

A TRG

90

B TRG TRG LOW

91 92

CAP M ON

COM DATA

73 71

COM CLK COM DIN

72 93

STEREO

94

TUNED

95

ST CE

10

ST MUTE ON

SCOR

25

DF LAT

29 30

SENS

31

XRST

38

CD CLK CD DATA

40 43

FOCUS SW SQ CLK

44

SQ DATA

45

X LAT

46

20

OUT-SW-OPEN IN SW

16

LOAD IN

21

LOAD OUT

22

.

3

2

B

10

A

INH

3

IC601

MIC AMP

16 7

3 9

6

2

x

9

6

IC701

MASTER CONTROL

i

1

71 29

28 30

MICON

INTERFACE

32 33 34

CK

DA

5

a

62

62427 LAT

1

5

65 64

POWER ON

DBFB HIGH

3

CD POWER

o

1

R-CH

EQ

EQUALIZER/VOLUME

62 40 41

62

67

77

MUTE

70

GM REQ

34 35

MG CLK

36

GM DATA

37

MG DATA

MG RDY

32

4

RESET

Q701

RESET

SWITCH

8 17

AC CUT

XOUT

IC702 RESET

D705

+5.6V

2

X701

10MHz

3

XIN

5

X702

32kHz

XIN

6

68

y

5

+

45 44

–

IC901

X501 5MHz

0

REQ GM

13

CLK MG

14

DATA GM

15 16

DATA MG RDY MG

46

RESET

34

X1

X2

35

7 - 1 • 80 - 76 75 - 72 • 70 - 53

FLUORESCENT INDICATOR TUBE

u

43

Q

IC501 GRAPHIC CONTROL

GR1-12 SEG1-22

FL501

1

42 38

BB12

BB22

Q901 DBFB

SWITCH

LED1 LED4

LED9

LED13

LED SELECT

SIRCS IN

JOG A JOG B

KEY4

|

KEY1

VOL A VOL B

6

43

|

40

••

10

•

9

•

51

3

|

49

19

47

45 31

28

|

25

44 12

Q902 FEED BACK

VF

Q507-511 Q601-603

7

3

Q504

LED

DRIVE

Q954 MUTE

Q820

MUTE

SWITCH

6

Q501

LED

CONTROL

IC502 REMOTE CONTROL

RECEIVER

S562

MULTI JOG

STATION

ROTARY

ENCODER

KEY

MATRIX

S561

VOLUME

ROTARY

ENCODER

8

IC1201

POWER AMP

3

.

1

D579,583 D585-590

D601,611,621

1

10

+7.5V

+5.6V

+5V

D +5V

(CD)

c

9

OVER LOAD

R-CH

5

Q1201

DET

+

Q502,503

1

D704

D706

D1018

Q1001,1002 CD POWER

ON/OFF

2

+

R-CH

D +5V

5

ST +10V

o

4

R-CH

+

Q1204

0

D1016,1017 D1021,1022

TC +5V

+7.5V

-7.5V

VF DP

• R CH:Same as L CH

• SIGNAL PATH

: FM : PB

: REC

: CD

: MD

m

9

RY1201

6

2

IC1202

PROTECTOR

1

7

4

Q1205

PROTECTOR

SWITCH

Q1206

STANDBY

SWITCH

2

9

8

IC1003

+7V REG

IC1002

+7V REG

D1097

|

IC1001

D1099

+5V REG

RECT

IC1004

-7V REG

Q1003

+10V REG

Q1006

-25V REG

+B

-B

• Abbreviation : German model.

G

: East European model.

EE

: Without voltage selector Saudi Arabia model.

EA4

: Thailand model.

TH

: Tourist model.

JE

8

Q1207

RELAY DRIVE

Q1208 HP/SP

SWITCHING

4

D1309,1310

D1003

|

D1006

RECT

D1001

RECT

D1013 D1014

RECT

D1250

RECT

VF

2

8

9

RECT

POWER TRANSFORMER

HCD-GR5/RX50

9

EXCEPT AEP,UK,G,EE

+

R-CH

+B

R-CH

9

2

T1601

VS1601

VOLTAGE

SELECTOR

EXCEPT AEP,UK,G,EE,EA4,TH

J201

SUPER

WOOFER

TM1201 SPEAKER

+

-

J501

PHONES

9

AC -IN

9

TEL 13942296513 QQ 376315150 892498299

– 19 –

– 20 –

HCD-GR5/RX50

— TUNER SECTION — (AEP,UK,German,East European MODEL)

Q5

FM FRONT END

VT

F OUT

AEP,UK,EE MODEL

L

FE1

3

6

5

3

2

LW SW

Q13

MW SW

10.7MHz

Q14

Q

FM 75Ω

TEL 13942296513 QQ 376315150 892498299

COAXIAL

AM

TM1

ANTENNA

G MODEL

Q

T

ST +10V

ANT IN IF OUT

E

7

AEP,UK,G MODEL

CF1

IF AMP

Q1,2

FE2

MW / LW FRONTEND

26 25 24 23 22 21 20

Q12

MW SW

1

3

9

AEP,UK,EE MODEL

CF2

10.7MHz

EE MODEL

IF AMP

4

6

10.7MHz

Q3,4

Q11

MW SW

2

G

9

AM / FM

1

FM IN

1

24

FM / AM MPX

IC41

REG

4

29

AM OSC

27

AM RF IN

6

FM SD

301415 11

3

CF3

12

LW SW

Q9

13 14

15

MODEL

16

17

2

AM MIX

5

AM / FM

22

MPX IN

AM

SD

AM SD

VCO STOP

IF BUFF

MUTE

2

12

13

450KHz

1

5

20

OUT L

21

OUT R

AM IF

IFT41

RV41

AM TUNED LEVEL

X41

10.7MHz

X42

3

456KHz

1

LPF

18

AMP IN L

AMP OUT L

RCH

STEREO

87STEREO

TUNED

AM IF

5

DET

9

23

VCO

X43

ST L

5

16

— TUNER SECTION — (Tourist MODEL)

0

ST +10V

ANT IN IF OUT

3

Q5

FM FRONT END

VT

F OUT

7

Q

FM 75Ω

AM

Q

TM1

ANTENNA

Q8

FE1

6

8

CF1

10.7MHz

2

3

Q14 SW

SWITCH

Q13 MW

3

SWITCH

SW TRACKING

9

IF AMP

Q1,2

CV1 CV2

T1 T2

MW FRONTEND

13 4 12 11 14 5 15

Q12 MW

5

1

SWITCH

2

IF AMP

Q3,4

SW OSC

VOLTAGE

D1

FE2

5

1

Q10 SW

SWITCH

CF3

10.7MHz

10

0

7

9

4

MW SWITCH

Q9

AM / FM

FM IN

1

FM / AM MPX

8

9

24

IC41

4

REG

29

AM OSC

27

AM RF IN

FM SD

301415 11

9

AM MIX

AM / FM

22

MPX IN

AM

SD

AM

SD

2

IF BUFF

MUTE

VCO STOP

8

OUT L

OUT R

2

12

RV41

TUNED

LEVEL

13

X42

450KHz

4

20

21

AM IF IFT41

AM

10.7MHz

X41

X43

456KHz

LPF

RCH

23

9

STEREO

TUNED

5

AM IF

9

DET

VCO

2

AMP OUT L

AMP IN L

18

STEREO

8

TUNED

7

8

2

16

ST L

9

TEL 13942296513 QQ 376315150 892498299

9

FM

w

911191510

PD1

MW

FM OSC

w

MUTE

X21

4.5MHz

24

ST-CE

CE

3

X IN

X OUT

COM-DIN

DI

4

COM-CLK

5

CL

COM-DATA

6

DO

:FM :AM :SW

A

MAIN SECTION (Page 19)

X21

4.5MHz

24

CE

X IN

X OUT

DI CL

DO

o

MUTE

ST-CE

3

COM-DIN

4

COM-CLK

5

COM-DATA

6

Abbreviation GEE:German model

:East European model

y

A

MAIN

SECTION

(page 19)

u

1

6

FM

19 91510

PD1

FM OSC

3

RV42

FM TUNED LEVEL

1

2

1411

12

7

8

AM OSC

FM

VCO STOP

IF REQ

FM/AM IF

• R CH:Same as L CH

• SIGNAL PATH

MW

.

PLL IC21

c

o

– 22 –

MW

m

RV42

FM

TUNING

LEVEL

1

2

14

12

7

8

AM OSC

i

FM

IF REQ

VCO STOP

FM / AM IF

• R CH :Same as L CH

• SIGNAL PATH

:FM

:MW

:LW

a

PLL IC21

.

MW

x

– 21 –

Sony HCD-GR5, HCD-RX50 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SERVICING NOTE

GENERAL

DISASSEMBLY

MECHANICAL ADJUSTMENTS

ELECTRICAL ADJUSTMENTS

DIAGRAMS