Sony HCDCP-500-MD Service manual

HCD-CP500K/CP500MD

SERVICE MANUAL

Ver. 1.2 2005. 02

HCD-CP500K/CP500MD is the Amplifier, MD deck, CD player , Tape pla yer and Tuner section in CMT-CP500K/CP500MD.

Section

Tape deck

Section

US Model

Canadian Model

AEP Model

UK Model

E Model

Australian Model

Chinese Model

HCD-CP500MD

Korea Model

HCD-CP500K

Model Name Using Similar Mechanism New CD Mechanism Type CDM55F-K4BD43 Base Unit Type BU-K4BD43 Optical Pick-up Type KSM-213DHAP Model Name Using Similar Mechanism New MD Mechanism Type MDM-7B Optical Pick-up Type KMS-260B Model Name Using Similar Mechanism New Tape Transport Mechanism T ype Mech deck

SPECIFICATIONS

Amplifier section For the U.S. model AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC DISTORTION:

With 6-ohm loads, both channels driven, from 70 - 20,000 Hz; rated 18 watts per channel minimum RMS power, with no more than 0.9% total harmonic distortion from 250 milliwatts to rated output.

US, Canadian model:

Continuous RMS power output (reference):

Total harmonic distortion: less than 0.07% (6 ohms at 1 kHz, 18 W)

35 + 35 W (6 ohms at 1 kHz, 10% THD)

AEP, UK model:

DIN power output (rated): 30 + 30 W Continuous RMS power output (reference):

Music power output (reference):

Other models:

The following measured at 230 V AC, 60 Hz DIN power output (rated): 30 + 30 W

Continuous RMS power output (reference):

The following measured at 220 V AC, 60 Hz DIN power output (rated): 24 + 24 W

Continuous RMS power output (reference):

(6 ohms at 1 kHz, DIN) 35 + 35 W

(6 ohms at 1 kHz, 10% THD)

85 + 85 W

(6 ohms at 1 kHz, DIN) 35 + 35 W

(6 ohms at 1 kHz, 10% THD)

(6 ohms at 1 kHz, DIN) 27 + 27 W

(6 ohms at 1 kHz, 10% THD)

— Continued on next page —

MICRO HI-FI COMPONENT SYSTEM

9-873-216-03

Sony Corporation

Personal Audio Group Published by Sony Engineering Corporation

HCD-CP500K/CP500MD

Specifications (continued)

Inputs ANALOG IN (phono jacks):

DIGITAL OPTICAL IN (Supported sampling frequencies: 32 kHz, 44.1 kHz and 48 kHz)

Outputs PHONES (stereo minijack):

SPEAKER: Accepts impedance of 6 to

CD player section

System Compact disc and digital Laser Semiconductor laser

Wavelength 780 – 790 nm Frequency response 2 Hz – 20 kHz (±0.5 dB)

Tape player section

Recording system 4-track 2-channel stereo Frequency response 50 – 13,000 Hz (±3 dB),

Wow and flutter ±0.15% W. Peak (IEC)

Sensitivity 250 mV, impedance 47 kilohms

Accepts headphones with an impedance of 8 ohms or more

16 ohms

audio system (λ = 780 nm)

Emission duration: continuous

using a Sony TYPE I cassette

0.1% W. RMS (NAB) ±0.2% W. Peak (DIN)

General

Power requirements US and Canadian model: 120 V AC, 60 Hz Thai and Chinese model: 220 V AC, 50/60 Hz AEP and UK model: 230 V AC, 50/60 Hz Australian and Hong Kong model:

Other models: 110 – 120 V or 220 –

Power consumption AEP and UK model: See the nameplate

Other models: See the nameplate Dimensions (w/h/d) Approx. 190 × 252 ×

Mass Approx. 7.0 kg Supplied accessories Remote commander (1)

Design and specifications are subject to change without notice.

220 – 240 V AC, 50/60 Hz

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

0.5 W (in the standby mode)

335 mm incl. projecting parts and controls

AM loop antenna (1) FM wire antenna (1) Batteries (2)

MD deck section

System MiniDisc digital audio Laser Semiconductor laser

Sampling frequency 44.1 kHz Frequency response 5 Hz – 20 kHz

system (λ =780 nm)

Emission duration: continuous

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range US and Canadian model: 87.5 – 108.0 MHz

Other models: 87.5 – 108.0 MHz Antenna FM wire antenna

Antenna terminals 75 ohm unbalanced Intermediate frequency 10.7 MHz

AM tuner section

Tuning range US and Canadian model: 530 – 1,710 kHz

AEP and UK model: 531 – 1,602 kHz

Other models: 530 – 1,710 kHz

Antenna AM loop antenna, external Intermediate frequency 450 kHz

(100-kHz step) (50-kHz step)

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

(with the tuning interval set at 9 kHz)

(with the tuning interval set at 10 kHz) 531 – 1,602 kHz (with the tuning interval set at 9 kHz)

antenna terminal

HCD-CP500K/CP500MD

Self-diagnosis display

This system has a Self-diagnosis display function to let you know if there is a system malfunction. The display shows a code made up of three letters and a message alternately to show you the problem. To solve the problem refer to the following list. If any problem persists, consult your nearest Sony dealer.

C11/Protected

The MD is protected against erasure.

Remove the MD and slide the tab to close the slot (see page 16).

C12/Cannot Copy

You tried to record a CD or MD with a format that the system does not support, such as a CD-ROM.

p Remove the disc and turn off the system once,

then turn it on again.

C13/REC Error

Recording could not be performed properly. p Move the system to a stable place, and start

recording over from the beginning.

The MD is dirty or scratched, or the MD does not meet the standards.

p Replace the MD and start recording over from

the beginning.

1. SERVICING NOTES ······················································ 4

2. GENERAL ·········································································· 9

3. DISASSEMBLY ······························································ 11

4. TEST MODE··································································· 20

5. MECHANICAL ADJUSTMENTS ···························· 26

6. ELECTRICAL ADJUSTMENTS······························26

7. DIAGRAMS

7-1. CIRCUIT BOARDS LOCATIONS ··································· 41 7-2. BLOCK DIAGRAM – CD SECTION – ··························· 42

BLOCK DIAGRAM – MAIN SECTION – ······················ 43 BLOCK DIAGRAM – MD SECTION – ·························· 44

BLOCK DIAGRAM – PANEL SECTION – ···················· 45 7-3. PRINTED WIRING BOARD – CD BOARD – ················ 46 7-4. SCHEMATIC DIAGRAM – CD BOARD – ····················· 47 7-5. PRINTED WIRING BOARD – BD BOARD – ················ 48 7-6. SCHEMATIC DIAGRAM – BD BOARD (1/2) – ············ 49 7-7. SCHEMATIC DIAGRAM – BD BOARD (2/2) – ············ 50 7-8. PRINTED WIRING BOARDS – AUDIO SECTION – ···· 51 7-9. SCHEMATIC DIAGRAM – AUDIO SECTION (1/2) –··· 52 7-10.SCHEMATIC DIAGRAM – AUDIO SECTION (2/2) –··· 53 7-11.PRINTED WIRING BOARD – TC BOARD – ················· 54 7-12.SCHEMATIC DIAGRAM – TC BOARD –······················ 55 7-13.PRINTED WIRING BOARD – DIGITAL BOARD – ······ 56 7-14 SCHEMATIC DIAGRAM – DIGITAL BOARD –··········· 57 7-15.

PRINTED WIRING BOARDS – CONTROL SECTION – 7-16 SCHEMATIC DIAGRAM – CONTROL BOARD – ········ 59 7-17.PRINTED WIRING BOARD – POWER BOARD –········ 60 7-18.SCHEMATIC DIAGRAM – POWER BOARD – ············· 60 7-19.IC BLOCK DIAGRAMS ·················································· 61 7-20.IC Pin Function Description ·············································· 63

··· 58

8. EXPLODED VIEWS ····················································· 71

9. ELECTRICAL PARTS LIST····································· 78

C13/Read Error

The MD deck cannot read the disc information properly.

p Remove the MD once, then load it again.

C14/Toc Error

The MD deck cannot read the disc information properly.

p Replace the MD. p Erase all the recorded contents of the MD using

All Erase Function (see page 27).

C41/Cannot Copy

The sound source is a copy of commercially available music software.

p The Serial Copy Management System prevents

making a digital copy (see page 47).

HCD-CP500K/CP500MD

SECTION 1

SERVICING NOTE

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

The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care.

FOR CD

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.

FOR MD

NOTES ON LASER DIODE EMISSION CHECK

Never look into the laser diode emission from right above when checking it for adjustment. It is feared that you will lose your sight.

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

SAFETY CHECK-OUT

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

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 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. Follow the manufacturers’ instructions to use these instruments.

2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a V OM or battery-operated A C voltmeter . The “limit” indica tion is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive V OM that is suitable. Nearly all battery operated digital multimeters that have a 2 V A C range are suitable. (See Fig. A)

T o Exposed Metal

Parts on Set

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

This caution label is located inside the unit.

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.

0.15 µF

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

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

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.

1.5 kΩ

Earth Ground

À LA SÉCURITÉ!

Voltmeter (0.75 V)

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.

DRAWING OUT THE TRAY DURING POWER OUT

Tray

HCD-CP500K/CP500MD

Move the cam block in the direction of the arrow with a finger.

CLEANING THE OPTICAL PICK-UP (CD PLAYER)

CD mechanism deck

Floating scre

Clean the lens block with applicator.

Optical pick-up block

HCD-CP500K/CP500MD

SERVICE POSITION OF THE MD MECHANISM DECK

MD mechanism deck (MDM-7B)

BD board

MD DIGITAL board

CN1001

CN304

MAIN board

CN301

CN801

SERVICE POSITION OF THE CD MECHANISM DECK

LOADING board

CD mechanism deck (CDM55F-K4BD43)

CD board

CN101

MAIN board

CN308

CN1

CN302

SERVICE POSITION OF THE TAPE MECHANISM DECK

HCD-CP500K/CP500MD

Tape mechanism dec

CN303

CN301

HCD-CP500K/CP500MD

JIG FOR CHECKING BD (MD) BOARD WAVEFORM

The special jig (J-2501-196-A) is useful for checking the waveform of the BD (MD) board. The names of ter minals and the checking items to be performed are shown as follows.

GND : Ground I+3V : For measuring IOP (Check the deterioration of the optical pick-up laser) IOP : For measuring IOP (Check the deterioration of the optical pick-up laser) TE : TRK error signal (Traverse adjustment) VC : Reference level for checking the signal RF : RF signal (Check jitter) FE : Focus error signal

I+3V

GND

IOP

I+3V

IOP

GND

FE VC RF

CN105

I+3V Iop GND TE FE VC RF

for

MDM-7

SECTION 2

GENERAL

1 2 5 863 47

HCD-CP500K/CP500MD

wj wh

wg wf

wd ws

9 q;

qa qs qd

qf qg

qjqkql

BASS wd (40) CD EJECT Z qh (8, 9, 16, 50) CD x qj (9, 10, 17, 38) CD u qk (9, 10) DSG wh (40) ENTER/START 5 (17, 18, 38,

39)

FUNCTION wf (9, 10, 13, 14, 19,

22, 23, 37, 39, 43) MD EJECT Z ql (13, 24) MD REC z qg (19, 22, 23) MD u qd (13 – 15, 19) MD x qf (13, 15, 17 – 20, 38,

39)

PHONES jack wa PLAY MODE DIRECTION wj

(9, 10, 13 – 15, 24, 37 – 39) PUSH OPEN/CLOSE Z 6 (37) REC MODE 3 (20, 50) Remote sensor 1 REPEAT 2 (9, 13, 34) STEREO/MONO 2 (35) SYNCHRO 4 (17, 18, 38) TAPE REC z 0 (39) TAPE Y 7 (37 –39) TAPE x 8 (18, 37 – 39) TAPE X 9 (37, 39)

TREBLE ws (40) TUNER BAND qs (34, 35, 50) TUNING MODE wj (34, 35) TUNING –/+ qa (34, 35) VOLUME w; (41)

BUTTON DESCRIPTIONS

. > qa (9, 10, 13 – 15) m M qa (9, 13, 37) @/1 (power) wg (7, 16, 24, 35, 41,

43, 50)

HCD-CP500K/CP500MD

123

wh wg

wf wd

wa w; ql qk qj

4 5

7 8 9 0

qa qs

Setting the time

Turn on the system.

Press CLOCK/TIMER SET on the remote.

If you are setting the clock for the first time, go to step 5.

Press . or > on the remote repeatedly until “CLOCK SET?” appears in the display.

Press ENTER/YES on the remote.

The hour indication flashes.

Press . or > on the remote repeatedly to set the hour.

Press ENTER/YES or CURSORt on the remote.

The minute indication flashes.

Press . or > on the remote repeatedly to set the minute.

Press ENTER/YES on the remote.

The clock will begin operating.

To reset the system clock

Start over from step 1.

BASS/TRE 5 (40) CD qj (9 – 11) CLEAR 8 (10, 14, 15, 25, 36) CLOCK/TIMER SELECT 2

(42, 43)

CLOCK/TIMER SET 4 (7, 41,

42) CURSOR T/t 9 (7, 12, 25) DISPLAY wa (8, 10, 11, 15, 19,

36) DSG qf (40) ENTER/YES 6 (7, 10, 12, 14,

20 – 23, 25 – 34, 36, 41 – 43)

FUNCTION qg (9, 10, 13, 14, 19,

22, 23, 37, 39, 43)

MD qk (13, 14, 25, 27 – 30, 32) MENU/NO wf (12, 21 – 24, 26 –

34) NAME EDIT/SELECT wd (11,

12, 24, 25, 36)

Number buttons 7 (9, 10, 12, 14,

15, 25, 35)

PLAY MODE wh (9, 10, 13 – 15,

24, 32) REPEAT wg (9, 13) SCROLL ws (12, 15, 26) SLEEP 1 (40) TAPE qh TUNER BAND ql (34, 35) VOLUME +/– qd (41)

BUTTON DESCRIPTIONS

@/1 (power) 3 (7, 16, 24, 35, 41,

43)

m M 9 (28, 30) . > 0 (7, 11, 12, 21 – 23,

25 – 34, 40 – 42)

N qa (9, 10, 13, 15, 23) x qs (23) X w; (9, 13, 28)

• The equipment canbe removed using the following procedure.

)

Set

Upper cover and case (L), (R) (Page 11)

HCD-CP500K/CP500MD

SECTION 3

DISASSEMBLY

Tape mechanism deck (Page 12)

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

Front panel section (Page 12)

Panel section (Page 13)

MD mechanism deck section (Page 15)

MD base unit (Page 15)

BD board (Page 16)

Motor section (Page 16)

Over write head (HR901) (Page 17)

Optical pick-up (MD) (Page 17)

3-1. UPPER COVER AND CASE (L), (R)

Upper cover (Remove in the direction of the arrow.)

screw

(+ BTP 3 x 8)

Case (L) (Remove in the direction of the arrow.)

Back panel and MAIN board (Page 14)

POWER board (Page 14)

CD mechanism deck section (Page 18)

Tray, gear and D cam section (CDM55) (Page 18)

(+ BTP 3 x 8)

CD base unit (CDM55) (Page 19)

Optical pick-up (CD) block section (KSM-213 DHAP) (Page 19)

screw

T wo screws

(Case 3 TP 2)

Two screws

(+ KTP 3 x 8)

Flat cable (18 core)

(CN301)

Case (R) (Remove in the direction of the arrow.)

screw

(+ BTP 3 x 8)

T wo screws

(Case 3 TP 2

HCD-CP500K/CP500MD

)

3-2. TAPE MECHANISM DECK

Tape

Flat cable

(12 core) (CN302)

Top panel

mechanism deck

Four screws

(+BTP 3 x 8)

Connector (CN301

3-3. FRONT PANEL SECTION

Front panel section

Screw

(+KTP 3 x 8)

(+BTP 3 x 8)

Earth wire

Two screws

Flat cable (25 core)

(CN301)

TC board

Three screws

(+BVTT 2.6 x 5)

Two screws

(+BTP 3 x 8)

Screw

(+KTP 3 x 8)

Flat cable (25 core)

(CN304)

Connector (C306)

3-4. PANEL SECTION

Three screws (+BTP 3 x 8)

MD block

CD-PRISM

board

MD cover

Two screws (+BTP 3 x 8)

MD-INDICATE board

Connector

(CN806)

Screw

(+BVTP 2.6 x 8)

HCD-CP500K/CP500MD

CONTROL board

Eighteen screw

(+BVTP 2.6 x 8)

Front panel

T wo knobs

(BASS/TREBLE)

Knob(VOL)

Hexagon nut

Connector

(CN808)

Screw (+BVTP 2.6 x 8)

Prism retainer board

Four screws

(+BVTP 2.6 x 8)

HEAD PHONE board

Flat cable (25 core)

(CN801)

HCD-CP500K/CP500MD

3-5. BACK PANEL AND MAIN BOARD

OPTICAL board

Optical retainer board

Screw

(+BTP 3 x 8)

Connector (CN902)

Connector (CN551)

Eight screws

(+BTP 3 x 8)

Back panel

Two screws

(+BTP 3 x 12)

3-6. POWER BOARD

Connector

(CN308)

Four screws

Flat cable (22 core)

(CN302)

POWER board

(+BVTP 4 x 8)

MAIN board

Connector (CN901)

Power retainer board

Screw

(+BTP 3

Cord stopper

3-7. MD MECHANISM DECK SECTION

T wo screws

(+BTP 3 x 8)

DIGITAL board

MD cover

MD mechanism deck

HCD-CP500K/CP500MD

Flat cable (17 core)

(CN103)

Flat cable (27 core)

(CN102)

3-8. MD BASE UNIT

Spring

Holder assy

MD cover

T wo screws

(+BTP 3 x 8)

Hoo

HCD-CP500K/CP500MD

)

3-9. BD BOARD

Flexible board

(CN101)

Remove the solders (Two portion) (SPINDLE motor)

Remove the solder (Two portion) (SLED motor)

M102

Two screws

(+BTP2 x 6)

3-10. MOTOR SECTION

BD board

Spring (spindle), tortion

Belt (CDM55)

Connector (CN104)

Remove the solders

(Two portion)

(LOADING motor)

Lever (head)

M101

M103

S102

Remove the solders

(Three portion)

T wo screws

(+PWH 1.7 x 3.5)

Loading motor

(M103)

Spindle motor

(M101)

Three screws

(TAPPING M1.7)

T wo screws

(+PWH 1.7 x 3.5

Sled motor

(M102)

)

3-11. OVER WRITE HEAD (HR901)

Screw (P 1.7 x 6)

Over write head

(HR901)

HCD-CP500K/CP500MD

3-12. OPTICAL PICK-UP (MD)

Screw (+BTP 2 x 6)

Base (BU-D)

Main shaft

Flexible board

Optical pick-up (for MD)

Screw (+BTP 2 x 6

Base (BU-A)

Screw (+KTP2 x 6)

HCD-CP500K/CP500MD

3-13. CD MECHANISM DECK SECTION

MPEG braket

Connector (CN1)

Two screws

(+BTP 3 x 8)

Screw

(+BTP 3 x 8)

CD mechanism deck

(Two claws)

Flat cable (22core)

(CN101)

3-14. TRY, GEAR AND D CAM SECTION (CDM55)

Spacer (55)

Gear (B)

Roller

Cam (CDM55)

Push the claw in tne

direction of the arrow

Belt (CDM55)

Pulley (LDG)

Gear (A)

Pull out the tray.

Pull out the tray in the arrow direction A, and release the lock while pressing this claw in the arrow direction

Release

3-15. CD BASE UNIT (CDM55)

)

Floating screw

(PTPWH M2.6)

Chassis (F)

HCD-CP500K/CP500MD

Remove the HOLDER (BU assembly in the direction of the arrow A.

3-16. OPTICAL PICK-UP (CD) BLOCK SECTION

(KSM-213DHAP)

Optical pick-up (CD) block

(KSM-213DHAP)

T wo screws

(+PTPWH M2.6)

Two insulators

CD board

T wo screws

(+PTPWH M2.6)

Remove the four solders.

Flat cable (16 core)

T wo insulators

Holder (213D)

T wo springs

screw

(+ BTP 2.6 x 6)

T wo springs

HCD-CP500K/CP500MD

SECTION 4

TEST MODE

Note 1:About “R”

As this unit has only a few buttons, some operations require the use of remote commander (RM-SCP500/provided with unit: 1-476-754-11) buttons. These operations are indicated as “R” in this manual. Example: MENU/NO “R” ...Press the [MENU/NO] button of the remote commander.

Note 2:Incorrect operations may be performed if the MD test mode is not entered properly.

In this case, press the ?/1 button to turn the power off, and retry to enter the MD test mode.

[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 customers.

Procedure:

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

2. Press three buttons BAND , REC MODE and Z (CD) simultaneously.

3. Press ?/1 button again, the LCD displays “Initialize” and the set is reset.

• Initialized conditions

FUNCTION : TUNER FM 87.5MHz VOLUME : MIN DSG : ON

[P ANEL T est Mode]

• This mode is used to check the softwar e version, LCD, LED and keyboard.

Procedure:

1. Press three bottons x (TAPE) , REC MODE and Z (CD) simultaneously.

2. LEDs and LCD are all turned on.

3. When you want to enter the software version display mode, press REPEAT/STEREO/MONO .The model name and destination are

displayed and “MD” and “CD” segments flash.

4. Each time REPEAT/STEREO/MONO is pressed, the display changes MC, GC, CD, CDD, CDMA,CDMB, BDA, BDB, ST , T A , TM,

TC and MD in this order, and returns to the top of the version display.

5. When REC MODE is pressed while the version numbers are being displayed, year, month and day of the software creation appear.

When REC MODE is pressed again, the display returns to the software version display. When REPEAT/STEREO/MONO is pressed while year, month and day of the software creation are being displayed, the year, month and day of creation of the software versions are displayed in the same order of version display.

6. Press PLAYMODE/DIRECTION b utton, and the key check mode is activ ated. In the k ey check mode, the LCD displays “K 0 J 0 V 0”.

Each time a button is pressed, “K 0” value increases. However, once a button is pressed, it is no longer taken into account. “J 0” value

increases like 1, 2, 3.... if rotating BASS or TREBLE knob clockwise, or it decreases like 0, 9, 8.... if rotating counter-clockwise.

“V 0” value increases like 1, 2, 3.... if rotating VOLUME knob clockwise, or it decreases like 0, 9, 8.... if rotating counter-clockwise.

7. To exit from this mode, press three buttons in the same manner as step 1, or disconnect the power cord.

[MC Test Mode]

• This mode is used to check operations of the respective sections of Amplifier, Tuner, CD and Tape.

Procedure:

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

2. Press the three buttons x (TAPE), REC MODE and z REC (MD) simultaneously.

3. The “MD” and “TAPE” segments flash.

4. When the VOLUME knob is rotated clockwise even slightly, the sound volume increases to its maximum and a message “VOLUME

MAX” appears for two seconds. then the display returns to the original display.

5. When the VOLUME knob is rotated counter-clockwise even slightly, the sound volume decreases to its minimum and a message

“VOLUME MIN” appears for two seconds, then the display returns to the original display.

6. To exit from this mode, press three button BAND , REC MODE and Z (CD) (T APE) simultaneously or disconnect the po wer cord.

HCD-CP500K/CP500MD

MD SECITON

1. PRECAUTIONS FOR USE OF TEST MODE

• As operations related to loading will be performed re gardless of the test mode operations being performed, be sure to check that the disc is stopped before setting and removing it. Even if the Z (MD) button is pressed while the disc is rotating during continuous playback, continuous recording, etc., the disc will not stop rotating. Therefore, it will be ejected while rotating. Be sure to press the Z (MD) button after pressing the MENU/NO “R” button and the rotation of disc is stopped.

1-1. Recording laser emission mode and operating buttons

• Continuous recording mode (CREC 1MODE)

• Laser power check mode (LDPWR CHECK)

• Laser power adjustment mode (LDPWR ADJUST)

• Comparison with initial Iop value written in nonvolatile memory (Iop Compare)

• Write current Iop value in read nonvolatile memory using microprocessor (Iop NV Save)

• Traverse (MO) check (EF MO CHECK)

• Traverse (MO) adjustment (EF MO ADJUST)

• When pressing the z MD button.

2. SETTING THE TEST MODE

The following are two methods of entering the test mode. Procedure : 1. Press the ?/1 button to turn the power on.

2. Press the [FUNCTION] button to set the MD function.

3. Press three buttons of ENTER/START , > , and z REC (MD) simultaneously. When the test mode is set, “[Check]” will be displayed. Pressing the . “R” or > “R” button between the following three groups; ···Tt [Check] Tt [Service] Tt [Develop] Tt ···.

Note: Do not use the test mode in the [Develop] group.

If used, the unit may not operate normally. If the [Develop] group is set accidentally, press the MENU/NO “R” button immediately to exit the [Develop] group.

3. RELEASING THE TEST MODE

Press the [REPEAT STEREO/MONO] button twice to display “Initialize”, then release the MD test mode.

4. BASIC OPERATIONS OF THE TEST MODE

All operations are performed using the . “R” , > “R” , ENTER/YES “R” and MENU/NO “R” . The functions of these buttons are as follows.

Function name Function

. “R” , > “R” buttons Changes parameters and modes

ENTER/YES “R” button Proceeds onto the next step. Finalizes input MENU/NO “R” button Returns to previous step. Stops operations

HCD-CP500K/CP500MD

5. SELECTING THE TEST MODE

There are 26 types of test modes as shown below . The groups can be switched by pressing the . “R” or > “R” button. After selecting the group to be used, press the ENTER/YES “R” button. After setting a certain group, pressing the . “R” or > “R” button switches modes shown below. Refer to “Group” in the table for details can be selected. All items used for servicing can be treated using group [Service]. So be carefully not to enter other groups by mistake.

Note: Do not use the test mode in the [Develop] group.

If used, the unit may not operate normally. If the [Develop] group is set accidentally, press the MENU/NO “R” button immediately to exit the [Develop] group.

Display

AUTO CHECK Err Display TEMP ADJUST LDPWR ADJUST Iop Write Iop NV Save EF MO ADJUST EF CD ADJUST FBIAS ADJUST AG Set (MO) AG Set (CD) TEMP CHECK LDPWR CHECK EF MO CHECK EF CD CHECK FBIAS CHECK ScurveCHECK VERIFYMODE DETRK CHECK 0920 CHECK Iop Read Iop Compare ADJ CLEAR INFORMATION CPLAY 1MODE CREC 1MODE

No.

Automatic self-diagnosis

C01

Error history display, clear

C02

Temperature compensation offset adjustment

C03

Laser power adjustment

C04

Iop data writing

C05

Writes current Iop value in read nonv olatile memory using microprocessor

C06

Traverse (MO) adjustment

C07

Traverse (CD) adjustment

C08

Focus bias adjustment

C09

Auto gain output level adjustment (MO)

C10

Auto gain output level adjustment (CD)

C11

Temperature compensation offset check

C12

Laser power check

C13

Traverse (MO) check

C14

Traverse (CD) check

C15

Focus bias check

C16

S-curve check

C17

Nonvolatile memory check

C18

Detrack check

C19

Most circumference check

C25

Iop data display

C26

Comparison with initial Iop value written in nonvolatile memory

C27

Initialization of nonvolatile memory for adjustment values

C28

Display of microprocessor version, etc.

C31

Continuous playback mode

C34

Continuous recording mode

C35

Details

Mark

Group

Check Service

• For details of each adjustment mode, refer to “5. Electrical Adjustments”. For details of “Err Display”, refer to “Self-Diagnosis Function” on page 3.

• If a different mode has been selected by mistake, press the MENU/NO “R” button to release that mode.

• Modes with (×) in the Mark column are not used for servicing and therefore are not described in detail. If these modes are set accidentally, press the MENU/NO “R” button to release the mode immediately.

HCD-CP500K/CP500MD

5-1. Operating the Continuous Playback Mode

1. Entering the continuous playback mode (1) Set the disc in the unit. (Whichever recordable discs or discs for playback only are available) (2) Press the . “R” or > “R” button to display “CPLAY 1MODE” (C34). (3) Press the ENTER/YES “R” button to change the display to “CPLAY1MID”. (4) When access completes, the display changes to “C = AD = )”.

Note: The numbers “ ” displayed show you error rates and ADER.

2. Changing the parts to be played back (1) Press the ENTER/YES “R” button during continuous playback to change the display as below.

“CPLAY 1MID” t “CPLAY 1OUT” t “CPLAY 1IN”

When pressed another time, the parts to be played back can be moved.

(2) When access completes, the display changes to “C = AD = )”.

Note: The numbers “ ” displayed show you error rates and ADER.

3. Ending the continuous playback mode (1) Press the MENU/NO “R” button. The display will change to “CPLAY 1MODE” (C34). (2) Press the Z (MD) button and take out the disc.

Note: The playback start addresses for IN, MID, and OUT are as follows.

IN : 40h cluster MID : 300h cluster OUT : 700h cluster

5-2. Operating the Continuous Recording Mode (Use only when performing self-recording/palyback check)

1. Entering the continuous recording mode (1) Set a recordable disc in the unit. (2) Press the . “R” or > “R” button to display “CREC 1MODE” (C35). (3) Press the ENTER/YES “R” button to change the display to “CREC 2MID”. (4) When access completes, the display changes to “CREC (1 )” and “REC” is displayed.

Note: The numbers “ ” displayed shows you the recording position addresses.

2. Changing the parts to be recorded (1) When the ENTER/YES “R” button is pressed during continuous recording, the display changes as below.

“CREC 1MID” t “CREC 1OUT” t “CREC 1IN”

When pressed another time, the parts to be recorded can be changed. “REC” goes off.

(2) When access completes, the display changes to “CREC (1

Note: The numbers “ ” displayed shows you the recording position addresses.

)” and “REC” is displayed.

3. Ending the continuous recording mode (1) Press the MENU/NO “R” button. The display changes to “CREC 1MODE” (C35) and “REC” goes off. (2) Press the Z (MD) button and take out the disc.

Note 1: The recording start addresses for IN, MID, and OUT are as follows.

IN : 40h cluster MID : 300h cluster OUT : 700h cluster

Note 2: The MENU/NO “R” button can be used to stop recording anytime. Note 3: Do not perform continuous recording for long periods of time above 5 minutes. Note 4: During continuous recording, be careful not to apply vibration.

6. FUNCTIONS OF OTHER BUTTONS

Function

N X MD

x (MD) M “R” m “R”

PLAY MODE REC MODE MD Z REPEAT STEREO/MONO

Contents

Sets continuous playback when this is pressed in the STOP state. When this is pressed during continuous playback, playback position moves.

Stops continuous playback and continuous recording The sled moves to the outer circumference only when this is pressed The sled moves to the inner circumference only when this is pressed Switches the spindle servo mode (CLV S y CLV A) Switches the displayed digit each time the button is pressed Ejects the disc Releases the test mode

HCD-CP500K/CP500MD

8. AUTOMATIC SELF-DIAGNOSIS FUNCTION

This test mode performs CREC and CPLAY automatically for mainly checking the characteristics of the optical pick-up. To perform this test mode, the laser power must first be checked. Perform AUTO CHECK after the laser power check and Iop Compare.

Procedure:

1. Press the . “R” or > “R” button to display “AUTO CHECK” (C01).

2. Press the

In this case, perform the laser power check and Iop Compare, and then repeat from enter the MD test mode.

3. If a disc is in the mechanical deck, it will be ejected forcibly.

“DISC IN” will be displayed in this case. Load a test disc (MDW-74/GA-1) which can be recorded.

4. If a disc is loaded at step 3, the check will start automatically.

5. When “XX CHECK” is displayed, the item corresponding to XX will be performed.

When “06 CHECK” completes, the disc loaded at step 3 will be ejected. “DISC IN” will be displayed. Load the check disc (TDYS-1).

6. When the disc is loaded in step 5, the check will automatically be resumed from “07 CHECK”.

7. After completing to “0C CHECK” of test item 12, check OK or NG will be displayed. If all items are OK, “CHK ALL OK” will be

displayed. If any item is NG, it will be displayed as “NG:xxxx”.

When “CHK ALL OK” is displayed, it means that the optical pick-up is normal. Check the operations of other parts (spindle motor, sled motor, etc.). When displayed as “NG:xxxx”, it means that the optical pick-up is faulty. In this case, replace the optical pick-up.

ENTER/YES “R” button. If “LDPWR ” is displayed, it means that the laser power check has not been performed.

9. INFORMATION

Display the software version.

Procedure:

1. Press the . “R” or > “R” button to display “INFORMATION” (C31).

2. Press the ENTER/YES “R” button.

3. The software version will be displayed.

4. Press the MENU/NO “R” button to end this mode.

10. IOP DA TA RECORDING AND DISPLA Y WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC195 OF BD

BOARD) ARE REPLACED

The IOP value labeled on the optical pick-up can be recorded in the non-volatile memory. By recording the value, it will eliminate the need to look at the value on the label of the optical pick-up. When replacing the optical pick-up or non-volatile memory (IC195 of BD (MD) board), record the IOP value on the optical pick-up according to the following procedure.

Record Procedure:

1. Press the ?/1 button to turn the power on.

2. Press the [FUNCTION] button to set the MD function.

3. Press three buttons of [ENTER/START], > and z REC (MD) simultaneously to enter the MD test mode and display “[Check]”.

4. Press the . “R” or > “R” button to display “[Service]”.

5. Press the ENTER/YES “R” button to display “AUTO CHECK”, and press the > “R” button to display “Iop Write”.

6. Press the ENTER/YES “R” button.

7. The display becomes “Ref= @@@.@” (@ is an arbitrary number) and the numbers which can be changed will blink.

8. Input the IOP value written on the optical pick-up.

To select the number : Press the . “R” or > “R” button. To select the digit : Press the [REC MODE] button.

9. When the ENTER/YES “R” button is pressed, the display becomes “Measu=@@@.@” (@ is an arbitrary number).

10. As the adjustment results are recorded for the step 9 value. Leave it as it is and press the ENTER/YES “R” button.

11. “Complete!” will be displayed momentarily. The value will be recorded in the non-volatile memory and the display will become “Iop

Write”.

12. Press the [REPEAT STEREO/MONO] button twice to complete. “Initialize” will be displayed and release the MD test mode.

Display Precedure:

1. Press the ?/1 button to turn the power on.

2. Press the [FUNCTION] button to set the MD function.

3. Press three buttons of [ENTER/START], > and z REC (MD) simultaneously to enter the MD test mode and display “[Check]”.

4. Press the . “R” or > “R” button to display “[Service]”.

5. Press the ENTER/YES “R” button to display “AUTO CHECK”, and press the > “R” button to display “Iop Read”.

6. Press the ENTER/YES “R” button.

7. “@@.@/##.#” is displayed and the recorded contents are displayed.

@@.@ : Indicates the Iop value labeled on the pick-up. ##.# : Indicates the Iop value after adjustment.

8. Press the [REPEAT STEREO/MONO] button twice to complete. “Initialize” will be displayed and release the MD test mode.

HCD-CP500K/CP500MD

11. WHEN MEMORY NG IS DISPLAYED

If the nonvolatile memory data is abnormal, “E001 MEMORY NG” will be displayed so that the MD deck does not continue operations. In

this case, set the test mode promptly and perform the following procedure.

Procedure:

1. Enter the MD test mode.

2. Normally a message for selecting the test mode will be displayed. However if the nonvola tile memory is abnormal, the following will be displayed “INIT EEP?”.

3. Press the x (MD) and Z (MD) buttons simultaneously.

4. Press the . “R” or > “R” button to display “MDM-7B”.

5. Press the REC MODE button. If the nonv olatile memory is successfully overwr itten, the normal MD test mode will be set and a message to select the MD test mode will be displayed.

12. CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS IN MD

Before performing repairs, perform the following checks to determine the faulty locations up to a certain extent. Details of the procedures are described in “Section 6 Electrical Adjustments”.

Criteria for Determination (Unsatisfactory if specified value is not satisfied)

Laser power check (6-2 : See page 31)

Auto check (6-4 : See page 32)

Temperature compensation offset check

(6-1 : See page 31)

Note:

The criteria for determination above is intended merely to determine if satisfactory or not, and does not serve as the specified value for adjustments. When performing adjustments, use the specified values for adjustments.

Figure1:

SPECIFIED V ALUE

Figure2:

SPECIFIED V ALUE

• 0.9 mW power Specified value : figure1

• 7.0 mW power Specified value : figure2

Iop (at 7.0mW)

• Labeled on the optical pick-up Iop value ± 10mA

• Unsatisfactory if displayed as “NG : XXXX”NG (XXXX are arbitrary numbers)

• Unsatisfactory if displayed as “T=@@ (##) [NG]” NG (@@, ## are both arbitrary numbers)

KMS-260B KMS-260E

0.85 to 0.91 mW

0.90 to 0.96 mW

6.8 to 7.2 mW

7.0 to 7.5 mW

• Clean the optical pick-up

• Adjust again

• Replace the optical pick-up

• Check for disconnection of the circuits around D101 (BD board)

• Check the signals around IC101, IC151, CN102, CN103 (BD board)

Measure if unsatisfactory

CD SECITON

[CD SERVO Test Mode]

• Use this mode when checking CD servo.

Procedure:

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

2. Select the function “CD”.

3. Press three buttons X (TAPE), REC MODE and Z (CD) simultaneously.

4. Press the appropriate button for the following tests.

Button Function Button Function

Z(CD) TEST 1 PLAY MODE DIRECTION TEST 6 x(CD) TEST 2 u(CD) TEST 7 > TEST 3 x(MD) TEST 8 . TEST 4 x(TAPE) TEST 9

REPEAT/STEREO/MONO TEST 5

5. To exit from this mode, turn off the set.

HCD-CP500K/CP500MD

SECTION 5

MECHANICAL ADJUSTMENTS

Precaution

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

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

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

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

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

Torque Measurement

Mode

FWD

FWD back tension

REV

REV back tension

FF/REW

FWD tension

REV tension

Torque meter Meter reading

3.04 – 6.96 N • m

CQ-102C

(31 to 71 g • cm)

(0.43 – 0.98 oz • inch)

0.20 – 0.58 N • m

CQ-102C

(2 to 6 g • cm)

(0.02 – 0.08 oz • inch)

3.04 – 6.96 N • m

CQ-102RC

(31 to 71 g • cm)

(0.43 – 0.98 oz • inch)

0.20 – 0.58 N • m

CQ-102RC

(2 to 6 g • cm)

(0.02 – 0.08 oz • inch)

6.97 – 14.02 N • m

CQ-201B

(71 to 143 g • cm)

(0.98 – 1.99 oz • inch)

0.98 N • m or more

CQ-403A

(100 g or more)

(3.53 oz or more)

0.98 N • m or more

CQ-403R

(100 g or more)

(3.53 oz or more)

SECTION 6

ELECTRICAL ADJUSTMENTS

DECK SECTION 0 dB=0.775V

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

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 given 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 RCH.

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

Tape

P-4-A100

WS-48B

P-4-L300

Note: Standard Volume Point is +10 dBs at SPEAKER Output Level (6Ω

load resistance) during playbacking P-4-L300 Test Tape. (DSG OFF, TREBLE/BASS CENTER)

Record/Playback Head Azimuth Adjustment

Procedure:

1. Mode : Playback

test tape P-4-A100 (10kHz, –10dB)

Signal

10 kHz, –10 dB

3 kHz, 0 dB

315 Hz, 0 dB

SJ301 SPEAKER Output Terminal

set

Used for

Azimuth Adjustment

Tape Speed Adjustment

Level Adjustment

level meter

Ω

+ –

2. Turn the adjustment screw 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

screw position

R-CH peak

output level

within 1 dB

L-CH peak

R-CH peak

within 1dB

screw position

HCD-CP500K/CP500MD

3. Mode: Playback

test tape P-4-A100 (10kHz, –10dB)

in phase 45

SJ301 SPEAKER Output Terminal

GND

set

R-ch

Waveform of oscilloscope

good

Ω

135

Ω

wrong

oscilloscope

180

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

Adjustment Location:

Adjustment point

Sample Value of Wow and flutter

W.RMS (JIS) less than 0.35% (test tape: WS-48B)

Record Level Check

Procedure:

1. Press FUNCTION button to select ANALOG IN. (This step is not necessary if the above test mode has already been set.)

2. Insert a tape into deck, press the z REC (TAPE) button, and then press the X (TAPE) button to start recording.

3. Mode: Record

ANALOG IN

AF OSC

1) 60 Hz

2) 5 kHz

3) 10 kHz

600

attenuator

109 mV (–17 dB)

Ω

blank tap CS-123

set

4. Mode: Playback

recorded position

SJ301 SPEAKER

level meter

Tape Speed Check

Procedure:

1. MODE : Playback.

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

(Top view)

set

SJ301 SPEAKER Output Terminal

Ω

frequency counter

set

Ω

5. The playback output level should be –4.5 ±3 dB (60 Hz), 1 ±3 dB (8 kHz) and –3 ±3 dB (10 kHz).

2. Insert the WS-48B into deck.

3. Press the Y button of deck.

4. Check the reading of frequency counter becomes 3000 ± 90

Hz.

HCD-CP500K/CP500MD

)

+ –

frequency counter

CD BOARD

TP (XPCK)

CD SECTION

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

oscilloscope

CD BOARD

TP(RFAC) TP(DVC 1.65V)

Procedure :

1. Connect oscilloscope to TP (RFAC) and TP (DVC 1.65V).

2. Turned Power switch on.

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

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

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

clearly distinguished at the center of the waveform.

RF PLL Free-run Frequency

Procedure :

1. Connect frequency counter to TP (XPCK) with lead wire.

2. Turned Power switch on.

3. Put the disc (YEDS-18) in to play the number five track. Confirm that reading on frequency counter is 4.3218MHz.

Test Point Location :

[CD BOARD] — SIDE B —

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

level : 1.1 ± 0.3Vp-p

E-F Balance (1 Track jump) Check

Oscilloscope

CD BOARD

TP (TE) TP (DVC 1.65V)

Procedure:

1. Connect oscilloscope to TP (TE) and TP (DVC 1.65V).

2. Turned Power switch on.

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

4. Press the u button. (Becomes the 1track jump mode.)

5. Confirm that the level B and A (DC volta ge) on the oscilloscope waveform.

Center of waveform

TP (DVC 1.65V)

IC103

TP (RFAC)

TP (TE)

IC101

TP (XPCK)

level=1.3 ±0.6Vp-p

Specification level: x 100=less than ±22%

A (DC voltage

Symmetry

HCD-CP500K/CP500MD

MD SECTION

Note 1:About “R”

Note 2:Incorrect opera tions may be performed if the MD test mode is not entered properly.

In this case, press the ?/1 button to turn the power off, and retry to enter the MD test mode.

1. PARTS REPLACEMENT AND ADJUSTMENT

If malfunctions caused by optical pick-up such as sound skipping are suspected, follow the following check.

Check before replacement

Start

6-2.

Laser Power Check

(See page 31)

6-3.

Iop Compare

(See page 31)

6-4.

Auto Check (See page 32)

Other faults are suspected. Check the mechanism parts (spindle motor, sled motor, etc.).

Replace optical pick-up or MDM-7B

+ 65 hidden pages

Sony HCDCP-500-MD Service manual

TABLE OF CONTENTS

SERVICING NOTE

GENERAL

DISASSEMBLY

TEST MODE

MECHANICAL ADJUSTMENTS

ELECTRICAL ADJUSTMENTS