Sony RCDW-50-C Service manual

RCD-W50C

SERVICE MANUAL

Ver 1.1 2003. 12

Model Name Using Similar Mechanism NEW

CD Section

CD-R/CD-RW Section

CD Mechanism Type CDM53L-30B61B Base Unit Type BU-30BBD61B Optical Pick-up Type A-MAX.3 Model Name Using Similar Mechanism NEW CD Mechanism Type CDM65-RBD1 Base Unit Type RBD1 Optical Pick-up Type KRM-220CAA

US Model

Canadian Model

E Model

DECK A (the CD player section)

System Compact disc digital audio Laser Semiconductor laser (λ =

Frequency response 20 Hz – 20,000 Hz (±0.5

DECK B (the CD-R and CD-RW recording section)

System Compact disc digital audio Laser Semiconductor laser (λ =

Playable discs CD, CD-R, CD-RW Recordable discs CD-R, CD-RW (for music

Frequency response 20 Hz - 20,000 Hz (±0.5

system 780 nm)

Emission duration: continuous

dB)

system 780 nm)

Emission duration: continuous

use) dB)

SPECIFICATIONS

Inputs

ANALOG IN (Phono jacks) Impedance: 47 kilohms

DIGITAL OPTICAL IN (Square optical connector jack)

Outputs

ANALOG OUT (Phono jacks) Impedance: 47 kilohms

DIGITAL OPTICAL OUT (Square optical connector jack)

PHONES (Phono jack) Load impedance: 32 ohms

Rated input: 500 mVrms Minimum input 250 mVrms

Optical wavelength: 660 nm

Rated output: 2 Vrms Load impedance: over 10 kilohms

Wavelength: 660 nm Output level: –18 dBm

Output level: 12mW

COMPACT DISC RECORDER

General

Power requirements North American model: 120 V AC, 60 Hz Other models: 110-120/220-240V AC,

Power consumption 25 W Dimensions (approx.) (w/h/d) incl. projecting parts and control 430 × 108 × 399 mm

Mass (approx.) 6.8 kg Supplied accessories

Design and specifications are subject to change without notice.

50/60 Hz

/8 × 15 3/4 inch)

( 17 × 4 (15 lbs)

• Audio connecting cords Phono jack × 2 (red/white) ↔ Phono jack × 2 (red/white) (2)

• Remote commander (remote) (1)

• Size AA (R6) batteries (2)

9-874-151-02

Sony Corporation

Home Audio Company Published by Sony Engineering Corporation

RCD-W50C

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.

The following caution label is located inside the apparatus.

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.

SAFETY CHECK-OUT

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 leakage from any e xposed 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 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-volta ge 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)

To Exposed Metal

Parts on Set

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.

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

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ! 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 DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.

0.15 µF

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

MODEL IDENTIFICATION

— BACK PANEL —

PARTS No. MODEL

4-238-401-0π 4-238-401-1π 4-238-401-3π

1.5 kΩ

Earth Ground

US Canadian E

AC Voltmeter (0.75 V)

Parts No.

RCD-W50C

Unleaded solder

Boards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.)

: LEAD FREE MARK

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40°C higher than

ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350°C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful!

• Strong viscosity Unleaded solder is more viscous (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.

• Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder.

1. SERVICING NOTE·····················································4

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

3. DISASSEMBLY··························································6

3-1. Case (409538) ······························································· 7 3-2. Loading Panel (CDR) ··················································· 7 3-3. Front Panel Section······················································· 8 3-4. CD-SW Board, LED Board, DISPLAY Board ············· 8 3-5. CD Mechanism Deck (CDM65-RBD1) ······················· 9 3-6. Tray··············································································· 9 3-7. CDR Board ································································· 10 3-8. Holder (MG) Sub Assembly, Dust Cover ··················· 10 3-9. Optical Pick-Up (KRM-220CAA)······························ 11 3-10. Motor Assembly (Loading) (M201) ··························· 11 3-11. Cam (CH)···································································· 12 3-12. MAIN Board ······························································· 12 3-13. CD Mechanism Deck (CDM53L-30B61B) ················ 13 3-14. Fitting Base (Magnet) Assembly ································ 13 3-15. CLAMP MOTOR Board,

Motor (Clamp) Assembly (M701)······························ 14 3-16. Fitting Base (Guide) Assembly, Bracket (Chassis) ····· 14 3-17. Tray (Sub) ··································································· 15 3-18. Chassis (Mold B) ························································ 15 3-19. LOAD MOTOR Board,

Motor (Loading) Assembly (M702) ···························16 3-20. Stocker Section ··························································· 16 3-21. Slider (Selection), Tension Spring (Shutter),

Slider (Shutter)···························································· 17 3-22. Gear (Gear A), Gear (Gear B), Gear (U/D Slider)······ 17

Precaution During Gear (Gear U/D Slider),

Gear (Gear B), Gear (Gear A) Installation·················· 18 3-23. Gear (Chucking) ························································· 18 3-24. BD Board ···································································· 19 3-25. Optical Block Section ················································· 19

4. TEST MODE ···································································· 21

5. ELECTRICAL ADJUSTMENTS ······························· 24

CD SECTION ····························································· 24

CD-R/RW SECTION·················································· 25

6. DIAGRAMS······································································ 55

6-1. Block Diagrams – CD-R Section – ··························· 56

6-2. Printed Wiring Board – BD Section – ························ 59 6-3. Schematic Diagram – BD Section – ··························· 60 6-4. Printed Wiring Board

6-5. Schematic Diagram 6-6. Printed Wiring Board – CD-R Section (Side A) – ······ 63

6-7. Printed Wiring Board – CD-R Section (Side B) – ······ 64 6-8. Schematic Diagram – CD-R Section (1/4) – ·············· 65 6-9. Schematic Diagram – CD-R Section (2/4) – ·············· 66 6-10. Schematic Diagram – CD-R Section (3/4) – ·············· 67 6-11. Schematic Diagram – CD-R Section (4/4) – ·············· 68 6-12. Printed Wiring Board – MAIN Section (Side A) – ····· 69 6-13. Printed Wiring Board – MAIN Section (Side B) –····· 70 6-14. Schematic Diagram – MAIN Section (1/2) – ············· 71 6-15. Schematic Diagram – MAIN Section (2/2) – ············· 72 6-16. Printed Wiring Board – LED Section – ······················ 73 6-17. Schematic Diagram – LED Section – ························· 74 6-18. Printed Wiring Board – DISPLAY Section – ············· 75 6-19. Schematic Diagram – DISPLAY Section – ················ 76 6-20. IC Block Diagrams ····················································· 77 6-21. IC Pin Functions Description······································80

– CD Section – ······························· 57 – POWER/DISPLAY Section –······ 58

– SENSER/MOTOR/SW Section – ·····61 – SENSER/MOTOR/SW Section – ·····62

7. EXPLODED VIEWS ······················································ 54

7-1. Case Section··································································90 7-2. Front Panel Section ······················································· 91 7-3. Chassis Section ····························································· 92 7-4. Overall Section (CDM53L-30B61B)···························· 93 7-5.

Chassis (Mold) Assembly Section (CDM53L-30B61B) ·· 7-6. Chassis Section (CDM53L-30B61B) ··························· 95 7-7. Optical Block Section ··················································· 96 7-8. CDM65-RBD1 ······························································ 97

8. ELECTRICAL PARTS LIST······································· 98

RCD-W50C

SECTION 1

SERVICING NOTE

Self-diagnosis Function

When the self-diagnosis function is activated to prevent the player from malfunctioning, three character service numbers in a combination with a message appears in the display. In this case, check the following table.

Message

C12/ Cannot Copy

C13/ Rec Error

C14/ TOC Error

C41/ Cannot Copy

C71/ Din Unlock

Explanation

You are trying to record a disc that cannot be played back in DECK-A or with an external device, such as CD-ROM or VIDEO CD.

• Remove the disc, and then insert a music CD for playback.

Recording has not been completed successfully because of vibration.

• Relocate the unit in a place free of vibration and restart the recording again.

The disc you try to record is excessively dirty (such as oilstained or finger marked) or scratched. Or the disc is not normal.

• Replace the disc with another one and restart the recording again.

The unit did not read the TOC information.

• Insert other discs.

The sound source you are trying to record is a copy of a commercial music software. Or you are trying to record on a CD-R/CD-RW digitally.

• Because of the restriction of the Serial Copy Management System, you cannot record a copy of a commercial music software. Neither can you record a CD-R/ CD-RW digitally.

If this message is displayed momentarily, this is not an error. It is caused by the digital signal during recording.

During recording of a digital sound source, the connecting cable has been disconnected or the player of the sound source has turned off.

• Connect the cable or turn on the digital player.

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 repain 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. The emission check enables continuous checking of the S curve.

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 three times.

SECTION 2

GENERAL

RCD-W50C

2 5 978 q;

e; wl

wgwh ws

1 POWER button 2 H button 3 DISC 1 to DISC 5 A button and indicators 4 CD SYNCHRO NORMAL button

qh PLAY MODE button qj TIME button qk DISPLAY button ql YES button

qa qs qd

qgqhqjqkqlw;wd wawfwjwk

5 CD SYNCHRO HIGH button 6 OPEN/CLOSE A button 7 H button 8 INPUT button 9 FINALIZE button q; ERASE button qa SBM button and indicator qs REC z button qd X button qf REC LEVEL knob qg x button

w; l AMS L knob wa CLEAR button ws MENU/NO button wd l AMS L knob wf CLEAR button wg PLAY MODE button wh TIME button wj x button wk PHONES jack wl X button e; PHONE LEVEL knob

RCD-W50C

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

SECTION 3

DISASSEMBLY

SET

CASE (409538)

LOADING PANEL (CDR)

TRAY

CDR BOARD

HOLDER (MG) SUB ASSEMBLY, DUST COVER

MAIN BOARD

CD MECHANISM DECK (CDM53L-30B61B)

FITTING BASE (MAGNET) ASSEMBLY

MOTOR ASSEMBLY (LOADING) (M201)

FRONT PANEL SECTION

CD MECHANISM DECK (CDM65-RBD1)

CD-SW board, LED board, DISPLAY board

OPTICAL PICK-UP (KRM-220CAA)

CLAMP MOTOR BOARD, MOTOR (CLAMP) ASSEMBLY

CAM (CH)

FITTING BASE (GUIDE) ASSEMBLY, BRACKET (CHASSIS)

BD BOARD

OPTICAL BLOCK SECTION

TRAY (SUB)

CHASSIS (MOLD B)

SLIDER (SELECTION), TENSION SPRING (SHUTTER), SLIDER (SHUTTER)

GEAR (GEAR A), GEAR (GEAR B), GEAR(U/D SLIDER)

GEAR (CHUCKING)

LOAD MOTOR BOARD, MOTOR (LOADING) ASSEMBLY

STOCKER SECTION

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

3-1. Case (409538)

case (409538)

two

screws

(case 3 TP2 3

× 8

)

two

screws

(case 3 TP2 3

two

screws

(case 3 TP2 3

RCD-W50C

× 8

)

× 8

)

3-2. Loading Panel (CDR)

loading panel

two hooks

(CDR)

CD mechanism deck (CDM65-RBD1)

Slide the lever (cam (CH)) to the direction of arrow.

Front panel side

lever (cam (CH))

RCD-W50C

3-3. Front Panel Section

connector (2core)(CN920)

three

screws

(+BVTP 3

connector (2core)(CN900)

connector (3core)(CN690)

wo claws

four screws

(+BVTP 3

3-4. CD-SW Board, LED Board, DISPLAY Board

four

claws

two knobs (AMS)

flexible flat cable

(21core) (CN671)

front panel section

HARNESS PROCESSING

CD-SW board

three

screws

(+BVTP 2.6

CD-SW board

knob (AMS)

LED board

twelve

(+BVTP 2.6

screws

DISPLAY board

Remove the soldering.

flexible flat cable

(21core) (CN700)

four

screws

(+BVTP 2.6

3-5. CD Mechanism Deck (CDM65-RBD1)

Slide the lever (cam (CH)) to the direction of arrow.

ray

Pull the tray while pressing the claw of

the chassis in the direction of the arrow.

Pull the tray while pressing the claw of the chassis and the claw

of the tray in the direction of the arrow.

front panel side

lever (cam (CH))

claw

chassis

CD mechanism deck

(CDM65-RBD1)

four

screws (+BVTP 3

RCD-W50C

flexible flat cable

(11core) (CN630)

connector

(CN631)

3-6. T ray

RCD-W50C

3-7. CDR Board

bottom plate

CDR board

(11core) (CN103)

flexible flat cable

four

screws

(+BVTP 2.6

flexible flat cable

(32core) (CN101)

law

onnector

(2 core) (CN104)

3-8. Holder (MG) Sub Assembly, Dust Cover

holder (MG)

sub assembly

two claws

flexible flat cable

(11core) (CN102)

law

three s

(+BVTP 2.6

crews

dust cove

two claws

3-9. Optical Pick-Up (KRM-220CAA)

)

two step screws

two screws

((2X9) (G with), +p tappin)

optical pick-up

(KRM-220CAA)

RCD-W50C

two insulators (main)

3-10. Motor Assembly (Loading) (M201)

Remove the belt (loading) from the

pulley of the motor assembly.

two insulators (main)

flexible flat cable

(32core) (from optical device

Slide the cam (CH) to the direction of arrow.

wo claws

otor assembly

(loading) (M201)

RCD-W50C

)

3-11. Cam (CH)

holder (BU) sub assembly

Slide the cam (CH) to the

direction of arrow pressing the claw.

while

(+PTPWH 2.6

cam (CH)

screw

ear (C)

3-12. MAIN Board

two

screws

(+BVTT 3

cam (CH)

four

screws

× 6

claw

)

power transformer

claw

ear (B)

connector

(4core) (CN631)

connector

(2core) (CN900)

flexible flat cable

(21core) (CN671)

connector

(3core) (CN690)

flexible flat cable

(23core) (CN660)

flexible flat cable

(17core) (CN640)

connector

(5core) (CN641)

Remove the soldering.

MAIN board

screw

(+BVTP 3

flexible flat cable

(11core) (CN630)

bracket

three

(+BVTP 3

(TR)

screws

3-13. CD Mechanism Deck (CDM53L-30B61B)

four

screws (+BVTP 3

CD mechanism deck

(CDM53L-30B61B)

flexible flat cable

(17core) (CN701)

RCD-W50C

connector

(CN641)

flexible flat cable

(23core) (CN101)

3-14. Fitting Base (Magnet) Assembly

fitting base (magnet)

assembly

four screws

(+BTTP M2.6 )

connector (CN710)

RCD-W50C

)

3-15. CLAMP MOTOR Board, Motor (Clamp) Assembly (M701)

belt (mode)

motor (clamp)

assembly (M701)

CLAMP MOTOR

board

two screws

(+BTTP M2.6)

3-16. Fitting Base (Guide) Assembly, Bracket (Chassis)

four screws

fitting base (guide) assembly

two connectors (CN709, 715)

(+BVTP 2.6

two screws

(+BVTP 2.6

Remove the two solderings.

bracket (chassis)

three screws

(+BVTP 2.6

3-17. T ray (Sub)

)

three screws

(+BTTP M2.6 )

Insert the gear (eject) under the gear (LD deceleration).

Insert the portion A of chassis (mold B) into the portion B of slider (selection).

gear (eject)

portion A

portion B of slider (selection)

ear (eject)

hassis (mold B)

chassis (mold B)

PRECAUTION DURING CHASSIS (MOLD B) INSTALLATION

Rotating the pulley (LD), shift the slider (selection) in the arrow A direction.

Rotating the pulley (mode) in the arrow direction, adjust the tray (sub) to be removed.

Rotating the pulley (LD), shift the slider (selection) in the arrow B direction.

Rotating the pulley (mode) in the arrow direction, remove the tray (sub) to be removed.

slider (selection)

pulley (LD)

RCD-W50C

stocker section

tray (sub)

3-18. Chassis (Mold B)

pulley (mode

RCD-W50C

3-19. LOAD MOTOR Board, Motor (Loading) Assembly (M702)

belt (communication)

belt (loading1)

motor (loading)

assembly (M702)

LOAD MOTOR

board

3-20. Stocker Section

two step screws

two screws

(+BTTP M2.6)

stocker section

Remove the two solderings.

PRECAUTION DURING STOCKER SECTION INSTALLATION

Hook the portion A of tray (SUB) to the slider (selection).

portion A of tray (SUB)

sticking of slider (selection)

gear (gear A)

two step screws

3-21. Slider (Selection), Tension Spring (Shutter), Slider (Shutter)

)

two floating screws

(+PTPWHM 2.6 x 6)

slider (selection), tension spring (shutter), slider (shutter)

washer

compression

spring (gear)

RCD-W50C

PRECAUTION DURING SLIDER (SELECTION) INSTALLATION (2)

Insert the slider (selection) into the portion A.

portion A

3-22. Gear (Gear A), Gear (Gear B), Gear (U/D Slider)

gear (gear B)

screw

(+BTTP M2.6)

gear (U/D slider)

PRECAUTION DURING SLIDER (SELECTION) INSTALLATION (1)

gear (chuking)

Insert a convex portion into the groove of gear (chucking).

slider (selection)

gear (gear A)

washer

compression spring

gear (selection

gear (relay)

RCD-W50C

Precaution During Gear (Gear U/D Slider), Gear (Gear B), Gear (Gear A) Installation

gear (gear B)

portion A

Adjust the gear (gear B) with the portion A as shown.

slider (U/D)

Slide the slider (U/D) fully in the arrow direction.

gear (U/D slider)

slider (U/D) gear

gear (gear A)

gear (gear B)

linearly

Adjust the gear so that it meshes with the bottom tooth of slider (U/D) gear, as shown.

3-23. Gear (Chucking)

PRECAUTION DURING GEAR (CHUCKING) (2)

rotary encoder (S707)

Align with the slot of rotary encoder.

PRECAUTION DURING GEAR (CHUCKING) (1)

rotary encoder (S707)

gear (chucking)

Adjust so as to be aligned with gear B linearly, as shown.

gear (chucking)

rotary encoder (S707)

Align marking.

3-24. BD Board

Remove soldering from the four points.

BD board

flexible flat cable

(16core) (CN102)

hook

RCD-W50C

3-25. Optical Block Section

shaft (BU holder)

gear (chucking)

optical block section

two floating screws

(+PTPWHM 2.6)

Rotate the pulley (LD) in the direction of 2 to move the shaft (BU holder) upper.

gear (chucking)

RCD-W50C

MEMO

SECTION 4

TEST MODE

RCD-W50C

Setting the Test Mode

Procedure:

1. Press the POWER button to POWER on.

2. Pr ess the l AMS L (DECK A), [SBM] and l AMS L (DECK B) buttons in order without releasing the button.

3. Turn the l AMS L (DECK B) knob to select the men u.

4. Pr ess the l AMS L (DECK B) knob to execute the test mode.

Releasing the Test Mode

Procedure 1:

1. Turn the l AMS L (DECK B) knob to select the Ship Mode.

2. Pr ess the l AMS L (DECK B) knob to execute the Ship Mode.

3. Press the POWER button to POWER off.

Procedure 2:

1. Pr ess the l AMS L (DECK A), [SBM] and l AMS L (DECK B) buttons in order without releasing the button.

2. Press the POWER button to POWER off.

Contents of test mode

No. Display Function

1 SYS Version System version display 2 CDR Version CDR version display 3BU Test Deck A BU test mode 4 SERVICE Deck A Service mode 5 Ship Mode CD Shipment mode 6 FL ALL ON Fluorescent indicator tube test 7 FL ALL OFF Fluorescent indicator tube test 8 FL ITIMATSU Fluorescent indicator tube test

9 LED CHECK LED check 10 KEY CHECK Keyboard check 11 RM CHECK Remote commander check 12 CDR History CDR error history display 13 Play Speed Deck A x4 speed

System Version Display

Procedure:

1. Enter the test mode, then turn the l AMS L (DECK B) knob to display “SYS Version”, and press the l AMS L (DECK B) knob.

2. The system version is displayed.

3. To exit from this mode, turn the l AMS L (DECK B) knob to display “Ship Mode”, and press the l AMS L (DECK B) knob to execute the Ship Mode.

4. Press the POWER button to POWER off.

CDR Version Display

Procedure:

1. Enter the test mode, then turn the l AMS L (DECK B) knob to display “CDR Version”, and press the l AMS L (DECK B) knob.

2. The CDR version is displayed.

3. To exit from this mode, turn the l AMS L (DECK B) knob to display “Ship Mode”, and press the l AMS L (DECK B) knob to execute the Ship Mode.

4. Press the POWER button to POWER off.

BU Test Mode (Deck A)

Procedure:

1. Enter the test mode, then turn the l AMS L (DECK B) knob to display “BU Test”, and press the l AMS L (DECK B) knob.

2. “bdt S CURVE” is displayed. This test mode is used in the Electrical Adjustment section.

3. T urn the l AMS L (DECK B) knob. “bdt RAM READ”, “bdt RAM WRITE”, “bdt COMOUT”, “bdt FB TUNE” and “bdt ERR RATE” are displayed.

4. To exit from this mode, press the MENU/NO button and turn the l AMS L (DECK B) knob to display “bdt ERR RATE”.

5. Press the l AMS L (DECK A), [SBM] and l AMS L (DECK B) buttons in order without releasing the button.

6. Press the POWER button to POWER off.

Service Mode (Deck A)

Procedure:

1. Enter the test mode, then turn the l AMS L (DECK B) knob to display “SERVICE”, and press the l AMS L (DECK B) knob.

2. “SERVICE MODE” is displayed.

3. Press the ERASE button, the “SLED OUT” is displayed and the sled moves to the outermost position.

4. Press the FINALIZE button, the “SLED IN” is displayed and the sled moves to the innermost position.

5. Press the l AMS L (DECK B) knob, then “SERVICE MODE” is displayed again.

6. To exit from this mode, press the l AMS L (DECK A), [SBM] and l AMS L (DECK B) buttons in order with- out releasing the button.

7. Press the POWER button to POWER off.

Note: Always move the pick-up to the most inside position when

exiting from this mode.

Ship Mode

Procedure:

1. Enter the test mode, then turn the l AMS L (DECK B) knob to display “Ship Mode”, and press the l AMS L (DECK B) knob.

2. “Push POWER!” is displayed.

3. Press the POWER button to POWER off.

FL ALL ON Mode

Procedure:

1. Enter the test mode, then turn the l AMS L (DECK B) knob to display “FL ALL ON”, and press the l AMS L (DECK B) knob.

2. All segments of fluorescent indicator tube and all LEDs turn on.

3. Press the MENU/NO button, then “FL ALL ON” is displayed again.

4. To exit from this mode, turn the l AMS L (DECK B) knob to display “Ship Mode”, and press the l AMS L (DECK B) knob to execute the Ship Mode.

5. Press the POWER button to POWER off.

RCD-W50C

FL ALL OFF Mode

Procedure:

1. Enter the test mode, then turn the l AMS L (DECK B) knob to display “FL ALL OFF”, and press the l AMS L (DECK B) knob.

2. All segments of fluorescent indicator tube and all LEDs turn off.

3. Press the MENU/NO button, then “FL ALL OFF” is displayed again.

4. To exit from this mode, turn the l AMS L (DECK B) knob to display “Ship Mode”, and press the l AMS L (DECK B) knob to execute the Ship Mode.

5. Press the POWER button to POWER off.

FL ITIMATSU Mode

Procedure:

1. Enter the test mode, then turn the l AMS L (DECK B) knob to display “FL ITIMATSU”, and press the l AMS L (DECK B) knob.

2. Checkered patterns of segments are displayed.

3. Press the MENU/NO button, then “FL ITIMATSU” is displayed again.

4. To exit from this mode, turn the l AMS L (DECK B) knob to display “Ship Mode”, and press the l AMS L (DECK B) knob to execute the Ship Mode.

5. Press the POWER button to POWER off.

LED Check Mode

Procedure:

1. Enter the test mode, then turn the l AMS L (DECK B) knob to display “LED CHECK”, and press the l AMS L (DECK B) knob.

2. Turn the l AMS L (DECK A) or (DECK B) knob clock- wise. The green LED (DISC 1) turns on, then the orange LED (DISC 1) turns on. The each orange LED turns on after the green LED from DISC 1 to DISC 5. The LED (SBM) turns on at last. Counterclockwise rotation gives a performance in re verse order .

3. Press the MENU/NO button, then “LED CHECK” is displayed again.

4. To exit from this mode, turn the l AMS L (DECK B) knob to display “Ship Mode”, and press the l AMS L (DECK B) knob to execute the Ship Mode.

5. Press the POWER button to POWER off.

KEY Check Mode

Procedure:

1. Enter the test mode, then turn the l AMS L (DECK B) knob to display “KEY CHECK”, and press the l AMS L (DECK B) knob.

2. “Got l keys” is displayed.

3. Press the buttons, and when all the buttons are pressed (without the POWER button), “Got 36 keys” will be displayed.

4. To exit from this mode, press the l AMS L (DECK A), [SBM] and l AMS L (DECK B) buttons in order with- out releasing the button.

5. Press the POWER button to POWER off.

Remote Commander Check

Procedure:

1. Enter the test mode, then turn the l AMS L (DECK B) knob to display “RM CHECK”, and press the l AMS L (DECK B) knob.

2. Press the H key on the remote commander, then “Got PlayCom” is displayed. Press the MENU/NO button, then “RM CHECK” is displayed again.

4. To exit from this mode, turn the l AMS L (DECK B) knob to display “Ship Mode”, and press the l AMS L (DECK B) knob to execute the Ship Mode.

5. Press the POWER button to POWER off.

CDR History Display

Procedure:

1. Enter the test mode, then turn the l AMS L (DECK B) knob to display “CDR History”, and press the l AMS L (DECK B) knob.

2. “00 ######## ########” is displayed as the first error hitory.

3. Turn the l AMS L (DECK B) knob to select the error history. The number of error histories is ten in all. (Refer to “Contents of CDR error history”.)

4. Press the MENU/NO button, then “CDR History” is displayed again.

5. To exit from this mode, turn the l AMS L (DECK B) knob to display “Ship Mode”, and press the l AMS L (DECK B) knob to execute the Ship Mode.

6. Press the POWER button to POWER off.

Play Speed Selection Mode (Deck A)

Procedure:

1. Enter the test mode, then turn the l AMS L (DECK B) knob to display “Play Speed”, and press the l AMS L (DECK B) knob.

2. “x4 Play” is displayed. If a CD is in the deck A, pressing the H button executes the 4 times speed playback.

3. Press the x button to stop the playback.

4. Press the MENU/NO button, then “Play Speed” is displayed again.

5. To exit from this mode, turn the l AMS L (DECK B) knob to display “Ship Mode”, and press the l AMS L (DECK B) knob to execute the Ship Mode.

6. Press the POWER button to POWER off.

Contents of CDR error history

display(example)

1 2

3 4

00 05070D80 000E2E0D

5 6

(hexadecimal)

1 Order of the error history

00 to 09: ten error histories in all

2 Error contents

01: unable to focus on 02: Q code/ATIP discontinuous (several frames preceding) 03: Q code/ATIP unreadable 04: search taking more than sixteen seconds 05: focus failure 06: sled over run 07: not passing by start time to write 08: audio buffer over 09: sync failure OA: Spindle lock taking more than 8 secouds

example : 05 is focus failure

RCD-W50C

3 Operation mode

bit 7: Speed

0: normal speed 1: x4 speed

bit 6 to bit 0: Number of inner condition

01: POWER off condition/during shift to POWER on 02: POWER off and shipment setting/during shift to POWER

off and shipment setting 03: stop condition/during stop 04: during start up of servo 05: during TOC reading and others 06: during CD TEXT reading 07: during standby(waiting for command from the CD sys-

tem)/during search 08: during playback 09: during manual search(playback)

0A:during pause 0B:during manual search(pause) 0C:during OPC 0D:recording standby/during recording pause

(enable to shift to recording) 0E: during recording 0F: unable to record (waiting for shift to being recordable) 10: PMA updating 11: during operation of unfinalize 12: during operation of finalize 13: PMA erasing 14: emergency 15: recording preparation 16: recording end

5 Write POWER (integer of mW x 10, availab le during write

processing)

examples: 00 means unavailable

(when 3 operation mode is not recording) : A3 means 163(decimal), i.e. 16.3 mW

6 ATIME (min)/(sec)/(frame)

example: 0E, 2E, 0D means 14 : 46 : 13

Abbreviations:

ATIP : Absolute Time In Pre-groove OPC : Optimum POWER Control PMA : Program Memory Area

examples :

bit

HEX

77654 321

0000 0111

1001 0001

11 1

4 Start time of read in(compression method)

bit 15 to bit 13 : (min)

0: 97 min 1: 96 min 2: 95 min 7: others

bit 12 to bit 7: (sec) bit 6 to bit 0: (frame)

examples :

HEX

bit

0 Operation mode

normal speed, during

standby(waiting for command from the CD system)/during search

during operation of

0000 1101 1000 0000

0D,80

97(min) 27(sec)

x4 speed,

unfinalize

654 321

0(frame)

015 14 13 12 11 10 9 8 Start time of read in

97 : 27 : 00

11,16

0001 0001 0001 0110

34(sec)97(min) 22(frame)

97 : 34 : 22

RCD-W50C

)

+ –

BD board

TP (TE)

TP (DVC)

oscilloscope

(DC range)

SECTION 5

ELECTRICAL ADJUSTMENTS

CD SECTION (DECK A)

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.

S Curve Check

Connection :

oscilloscop

(DC range)

BD board

TP (FE)

TP (DVC)

Procedure :

1. Connect an oscilloscope to test point TP (FE) and TP (DVC) on the BD board.

2. Turn the power on.

3. Load the disc (YEDS-18).

4. Enter the test mode, select the BU Test asd press the l AMS L (DECK B) knob to display “bdt S CURVE”.

5. Press the l AMS L (DECK B) knob. “LD AL” is displayed and playback starts automatically.

6. Check the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 3.6 ±

0.5 Vp-p.

7. Press the MENU/NO button to stop playback.

8. Exit from the test mode. (Refer to the TEST MODE Section)

+ –

Note: A clear RF signal waveform means that the shape “◊” can be

clearly distinguished at the center of the waveform.

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

level : 1.1 ± 0.3Vp-p

E-F Balance (1 Track jump) Check

Connection :

Procedure:

1. Connect an oscilloscope to TP (TE) and TP (DVC).

2. Turn the power on.

3. Load the disc (YEDS-18) and playback the number five track.

4. Press the X (DECK A) button. (Becomes the 1 track jump mode.)

5. Confirm the level B and A (DC voltage) on the oscilloscope waveform.

Center of waveform

A (DC voltage

symmetry

within 3.6

VOLT/DIV : 1V TIME/DIV : 2ms

0.5 Vp-

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

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

RF Level Check

Connection :

oscilloscop

(AC range)

BD board

TP (RFAC)

TP (DVC)

+ –

Procedure :

1. Connect an oscilloscope to TP (RFAC) and TP (DVC).

2. Turn the power on.

3. Load the disc (YEDS-18) and playback the number five track.

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

level=1.1 ±0.6Vp-p

Specification level: x 100=less than ±22%

A B

Symmetry

[BD BOARD] — SIDE A —

TP (DVC)

TP (TE)

TP (FE)

IC104

IC101

IC103

TP (RFAC)

CD-R/RW SECTION

*The following is the method of locating the faulty point and

electrical adjustment.

1. Connection and Setting of Programs

(w/ SerialI/F)

RCD-W50C

1-1. Connection

Oscilloscope

(A)

MPXOUT

To RCD-W50C

(B) (C) (D)

0-756-358-11 CDM65-RBD1 SERVICE

RESET

Jig

CONTROL FIRM

(B) (C) (D)

COM1

RS-232C

Jig

Cables for Jig connecting

Cable

Laser Power Meter

Test Disc

CDM65-RBD1

jig

CDM65-RBD1

4 Fig. Position of Jig (Set the jig after removing the cover of CDM65-RBD1)

RCD-W50C

1-2. Equipments to prepare

1 Test Object Both RBD1 and CDM65-RBD1 shall be tested.

RBD1 : Flash Memory Writing of of

Circuit Test by Self-diagnostics

CDM65-RBD1 : Electrical Adjustment

Performance Test

2 Jig (With 9 Cables, Parts No.J-2501-223-A) 3 PC Windows95/98/2000/Me with COMport (RS-232C) 4 Programs TeraTerm Pro + Service macro 5 Oscilloscope More than 150MHz 6 Laser Power Meter LEADER LPM-8001 (Parts No.J-2501-046-A) 7 Test Disc

PATD-012 : (Parts No.4-225-203-1) Adjustment for Playback (CD,CD-R) TCD-W091W : (Parts No.J-2501-226-A) Adjustment for Playback (CD-RW) CRM74 (Blank CD-R) : Adjustment and Check for Recording (CD-R) CWM74 (Blank CD-RW) : Check for Recording (CD-RW) TCD-W032W : (Parts No.J-2501-227-A) Defocus tolerance (CD-RW)

8 RS-232C Cable

L=2000mm

(E)

D-sub 9pin Female cross cable

54321

9876

1 2 3 4 5 6 7 8 9

54321

9876

1 2 3 4 5 6 7 8 9

9 Cables for Jig connecting

:mandatory : not use

L=300mm

(A)

PH 5p

(B)

PH 4p

(C)

FFC 11p 1.0mm pitch (J-2501-200-A)

(D)

FFC 5p 1.0mm pitch (J-2501-212-A)

1-3. Setting of Programs (Tera Term Pro and Service macro)

* Confirmation of System (Windows 98 is used in this explanation) Preparation for Terminal software

1) Set up the serial port from OS. a) Select Start → Settings → Control Panel and select System →

Device manager → Communication Port (COMn)

(see Fig. 1-1)

* Specify the COM port that connected with JIG of CDM65.

RCD-W50C

b) Double click COMn (as you connect to the Jig-CDM65)

Set the parameters as below.

Bits per second : 38400 Data bits : 8 Parity : non Stop bits : 1 Flow control : hardware

(see Fig.1-2)

4 Fig. 1-1

4 Fig. 1-2

RCD-W50C

Ver 1.1 2003.12

c) Press “Advanced...” button (see Fig.1-2)

Remove the check “Use FIFO buffers ...”

(see Fig.1-3)

4 Fig. 1-3

2) Unzip the file “ttermp23.zip” by PC.

(The file “ttermp23.zip” is distributed together with the service manual.)

3) After unzip the files, you can find setup.exe.

Double click the setup.exe. Please install as the installer is. Do not change the directory that files are installed. (use default)

4) Unzip the file “files-0208.zip” by PC.

Copy all “ttl” file and “FUNC” folder which are contained in “files-0208” and paste them in the “Ttermpro” file as below. (The file “files-0208.zip” is distributed together with the service manual.)

Ttermpro

01ldp_S.ttl

...

10vwdcC_S.ttl

FUNC

AMS.ttl

...

VERCHK.ttl

4 Fig. 1-4

Note : Do not change the directory path.

5) Start-up the TeraTermPro

Double click the ttermpro.exe.

6) Set up the TeraTermPro (IMPORTANT!!)

a) Select Setup → Serial Port... and set the parameters as below.

Port : (As you connect to the Jig-CDM65) Baud rate : 38400 Data : 8 bit Parity : none Stop : 1 bit Flow control : hardware Transmit delay : 0 msec/char 10 msec/line

After settings, press “OK” button. (see Fig.1-5)

4 Fig. 1-5

b) Terminal setup

Set the parameters as below.

New-line receive : CR

transmit : CR

After settings, press “OK” button. (see Fig.1-6)

c) General setup

Select the language and press “OK” button. (see Fig.1-7)

RCD-W50C

4 Fig. 1-6

4 Fig. 1-7

d) Saving the setup

Select Setup → Save setup... and save as teraterm.ini in the Ttermpro directory. (see Fig.1-8)

7) Connect the JIG and CDM65.

8) Confirm the S510 on JIG is ‘CONTROL’.

9) Power on the CDM65 and press SW101(RESET) on JIG.

“CDM65-RBD1 has connected with this PC (^^)” is displayed.

(see Fig.1-9)

If above message is not displayed, you may hav e some mistakes. Please confirm previous setting procedures again.

4 Fig. 1-8

4 Fig. 1-9

RCD-W50C

Repair Works That Require Electrical Adjustment

In the case of repair works as shown below, electrical adjustment is required.

Locating the faulty point

KRM-220CAA

is replaced.

RBD1

is replaced.

The parts shown

in the List (1)

is replaced.

Electrical adjustment

is not required.

Yes

Electrical adjustment

List (1) : IC101, IC103, IC171, IC201, IC502

+ 80 hidden pages

Sony RCDW-50-C Service manual

TABLE OF CONTENTS

SERVICING NOTE

GENERAL

DISASSEMBLY

3-1. Case (409538)

3-2. Loading Panel (CDR)

3-3. Front Panel Section

3-4. CD-SW Board, LED Board, DISPLAY Board

3-5. CD Mechanism Deck (CDM65-RBD1)

3-6. T ray

3-7. CDR Board

3-8. Holder (MG) Sub Assembly, Dust Cover

3-9. Optical Pick-Up (KRM-220CAA)

3-10. Motor Assembly (Loading) (M201)

3-11. Cam (CH)

3-12. MAIN Board

3-13. CD Mechanism Deck (CDM53L-30B61B)

3-14. Fitting Base (Magnet) Assembly

3-15. CLAMP MOTOR Board, Motor (Clamp) Assembly (M701)

3-16. Fitting Base (Guide) Assembly, Bracket (Chassis)

3-17. T ray (Sub)

3-18. Chassis (Mold B)

3-19. LOAD MOTOR Board, Motor (Loading) Assembly (M702)

3-20. Stocker Section

3-21. Slider (Selection), Tension Spring (Shutter), Slider (Shutter)

3-22. Gear (Gear A), Gear (Gear B), Gear (U/D Slider)

Precaution During Gear (Gear U/D Slider), Gear (Gear B), Gear (Gear A) Installation

3-23. Gear (Chucking)

3-24. BD Board

3-25. Optical Block Section

TEST MODE

ELECTRICAL ADJUSTMENTS

CD SECTION (DECK A)

CD-R/RW SECTION

1. Connection and Setting of Programs

1-1. Connection

1-2. Equipments to prepare

1-3. Setting of Programs (Tera Term Pro and Service macro)

Repair Works That Require Electrical Adjustment