Sony HCD-CP33 Service manual

HCD-CP33

SERVICE MANUAL

Ver 1.1 2001. 08

Note

CD block, tape deck block and tuner pack are supplied with the assembled block.

HCD-CP33 is the Amplifier, MD player, CD player, Tape Deck and Tuner section in CMT-CP33MD.

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.

Section

Tape deck

Section

US Model

Canadian Model

AEP Model

UK Model

E Model

Australian Model

Tourist Model

Model Name Using Similar Mechanism HCD-CP11

CD Mechanism Type CDM55-K5BD41

Model Name Using Similar Mechanism HCD-MDX10

Mechanism Type MDM-5A

Optical Pick-up Type KMS-260A/K1NP

Model Name Using Similar Mechanism HCD-CP11

Tape Transport Mechanism Type TCB-020

Amplifier section For the U.S. model

AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC DISTORTION:

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

North American model:

Continuous RMS power output (reference):

35 + 35 W (6 Ω at 1 kHz, 10% THD)

Total harmonic distortion: less than 0.07%

(6 Ω at 1 kHz, 18 W)

European model:

DIN power output (Rated):30 + 30 W

(6 Ω at 1 kHz, DIN, 230 V)

Continuous RMS power output (Reference):

35 + 35 W (6 Ω at 1 kHz,10% THD, 230 V)

Music power output (Reference):

85 + 85 W

Other models:

The following measured at 230 V AC, 60 Hz DIN power output (rated): 28 + 28 W

(6 Ω at 1 kHz, DIN)

Continuous RMS power output (reference):

30 + 30 W (6 Ω at 1 kHz, 10% THD)

The following measured at 220 V AC, 60 Hz

SPECIFICATIONS

DIN power output (rated): 24 + 24 W

(6 Ω at 1 kHz, DIN)

Continuous RMS power output (reference):

25 + 25 W

(6 Ω at 1 kHz, 10% THD) Inputs VIDEO IN (phono jacks): voltage 250 mV, impedance 47 kΩ

Outputs LINE OUT (phono jack): voltage 250 mV, impedance 1 kΩ PHONES (stereo minijack):

accepts headphones of 8 Ω ormore. SPEAKER: accepts impedance of 6 to16 Ω

CD player section

System Compact disc and digital audio

system Laser Semiconductor laser (l=780 nm)

Emission duration: continuous Laser output Max. 44.6 µW*

*This output is the value measured

at a distance of 200 mm from the

objective lens surface on the

Optical Pick-up Block with 7 mm

aperture. Frequency response 2 Hz – 20 kHz

— Continued on next page —

MICRO Hi-Fi COMPONENT SYSTEM

9-929-276-12

2001H1600-1

Sony Corporation

Home Audio Company

Shinagawa Tec Service Manual Production Group

MD deck section

System MiniDisc digital audio system Laser Semiconductor laser (l=780 nm)

Emission duration: continuous

Laser output Max. 44.6 µW*

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

aperture. Sampling frequency 44.1 kHz Frequency response 5 Hz – 20 kHz

Tape deck section

Recording system 4-track 2-channel stereo Frequency response (DOLBY NR OFF)

40 – 13,000 Hz (±3 dB),

using Sony TYPE I cassettes

40 – 14,000 Hz (±3 dB),

using Sony TYPE II cassettes

GENARAL

Power requirements North American model: 120 V AC, 60 Hz European model: 230 V AC, 50/60 Hz Australian and Thai models:

220 – 240 V AC, 50/60 Hz

Other models: 110 – 120 V or 220 – 240 V AC,

50/60 Hz

Adjustable with voltage selector Power consumption 75 W Dimensions (w/h/d) incl. projecting parts and controls Amplifier/Tuner/Tape/MD/CD section:

Approx. 190 × 252 × 280 mm Mass Amplifier/Tuner/Tape/MD/CD section:

Approx. 7.5 kg Supplied accessories Remote (1)

Size AA (R6) batteries (2)

AM loop antenna (1)

FM lead antenna (1)

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range North American model: 87.5 – 108.0 MHz

(100 kHz step)

Tourist model: 7 6.0 – 108.0 MHz

(50 kHz step)

Other models: 87.5 – 108.0 MHz

(50 kHz step) Antenna FM lead antenna Antenna terminals 75 Ω unbalanced Intermediate frequency 10.7 MHz

AM tuner section

Tuning range Pan-American model: 530 – 1,710 kHz

(with the interval set at 10 kHz)

531 – 1,710 kHz

(with the interval set at 9 kHz) European model: 5 31 – 1,602 kHz

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

(with the interval set at 9 kHz)

530 – 1,710 kHz

(with the interval set at 10 kHz) Antenna AM loop antenna

External antenna terminals Intermediate frequency 450 kHz

Design and specifications are subject to change without notice.

1. SERVICING NOTES ······················································ 5

2. GENERAL ········································································ 11

3. DISASSEMBLY ······························································ 13

4. SERVICE MODE ··························································· 19

6. ELECTRICAL ADJUSTMENTS······························ 24

7. DIAGRAMS

7-1. Circuit Boards Locations ··················································· 35 7-2. Block Diagram – BD Section – ········································· 36 7-3. Block Diagram – MAIN Section – ···································· 37 7-4. Block Diagram – POWER Section – ································· 38 7-5. Schematic Diagram – BD Section (1/2) – ························· 39 7-6. Schematic Diagram – BD Section (2/2) – ························· 40 7-7. Printed Wiring Board – BD Section – ······························ 41 7-8. Printed Wiring Board – MAIN Section – ·························· 42 7-9. Schematic Diagram – MAIN Section (1/2) – ···················· 43 7-10.Schematic Diagram – MAIN Section (2/2) – ···················· 44 7-11.Schematic Diagram – BD SWITCH Section – ·················· 45 7-12.Printed Wiring Board – BD SWITCH Section – ··············· 45 7-13.Printed Wiring Board – CONTROL/LCD Section – ········· 46 7-14.Schematic Diagram – CONTROL/LCD Section – ············ 47 7-15.Printed Wiring Board – DIGITAL Section – ····················· 48 7-16.Schematic Diagram – DIGITAL Section – ························ 49 7-17.Printed Wiring Board – POWER Section – ······················· 50 7-18.Schematic Diagram – POWER Section – ·························· 51 7-19.IC Block Diagrams ···························································· 52 7-20.IC Pin Function Description ·············································· 57

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

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

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

Flexible Circuit Board Repairing

• Keep the temperature of the 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.

8. EXPLODED VIEWS····················································· 62

9. ELECTRICAL PARTS LIST····································· 69

CAUTION

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

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

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

The following caution label is located inside the unit.

CAUTION :

INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.

ADVARSEL :

SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDGÅ UDSAETTELSE FOR STRÅLING.

VORSICHT :

ABDECKUNG GEÖFFNET UND SICHERUEITSVERRIEGELUNG ÜBERBRÜCKT. NICHT DEM STRAHL AUSSETZEN.

VAR O! :

TIINA NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.

VARNING :

OCH SPÄRREN ÄR URKOPPLAD. BETRAKTA EJ STRÅLEN.

ADVERSEL :

SIKKERHEDSLÅS BRYTES. UNNGÅ EKSPONERING FOR STRÅLEN.

VIGYAZAT! :

GÁRVESZÉLY! KERÜLJE A BESUGÁRZÁST!

INVISIBLE LASER RADIATION WHEN OPEN AND

USYNLIG LASERSTRÅLING VED ÅBNING NÅR

UNSICHTBARE LASERSTRAHLUNG, WENN

AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALT-

OSYNLING LASERSTRÅLING NÄR DENNA DEL ÄR ÖPPNAD

USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG

A BURKOLAT NYITÁSAKOR LÁTHATATLAN LÉZERSU-

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.

MODEL IDENTIFICATION – Back Panel –

Power Voltage Indication

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ! LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES 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.

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 AC leakage. Check leakage as described below.

LEAKAGE

The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 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

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

Model

US, CND models

AEP, UK, AED models

AUS, TH models

E, AR, HK, MY, SP,

TW, JE, KR models

• Abbreviation AUS : Australian model. SP : Singapore model. MY : Malaysia model. TW : Taiwan model. HK : Hong Kong model. AR : Argentine model. CND : Canadian model. AED : North European model. KR : Korean model. TH : Thai model. JE : Tourist model.

VOLTAGE SELECTOR Switch (E, AR, HK, MY, SP, TW, JE, KR, model)

Power Voltage

Incdication

AC: 120 V 60 Hz 75 W

AC: 230 V 50 Hz 75 W

AC: 220 – 240V 50/60 Hz 75 W

AC: 110 – 120/

220 – 240 V 50/60 Hz 75 W

To Exposed Metal

Parts on Set

0.15 µF

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

1.5 kΩ

Earth Ground

AC Voltmeter (0.75 V)

SERVICING NOTE

NOTE FOR INSTALLATION (ROTARY ENCODER)

SECTION 1

BU cam

Groove

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.

CD-TEXT

This unit is provided with a simple CD-TEXT display function. The CD-TEXT contents of 50 tracks are displayed on the fluorescent display tube. Since the function is simple, some special characters may not be displayed, or may be displayed as other characters.

JIG FOR CHECKING BD BOARD WAVEFORM

The special jig (J-2501-149-A) is useful for checking the waveform of the BD board. The names of terminals 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) TEO : TRK error signal (Traverse adjustment) VC : Reference level for checking the signal RF : RF signal (Check jitter)

Mechanism deck

TEO

IOP

I+3V

GND

TEO

5P connector

CN110

6P connecto

RF VC TEO For MDMIOP I-3V

VC RF TEO

For MDM-

IOP I+3V

GND

IOP

I+3V

GND

Ver 1.1 2001. 08

IOP Data Recording and Display When optical Pick-up and Non-volatile Memory (IC171 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 (IC171 of BD board), record the IOP value on the optical pick-up according to the following procedure.

Record Precedure:

1. With the power ON, press the CD x button while pressing the MD REC z and MD x buttons together.

2. Press the

3. Press the

4. The display changes to “Ref=@@@.@” (@ is an arbitrary number) and the digits which can be changed, blink.

5. Input the IOP value labeled on the optical pick-up. To select the value : Press the

6. When the ENTER/YES (R) button is pressed, the display changes to “Measu=###.#” (# is an arbitrary number).

7. The adjustment value that is obtained by the adjustment described in separate section of Manual, can be saved in this set up. However, leave the value as it is and press the ENTER/YES (R) button.

8. “Complete!!” will be displayed momentarily. The value will be recorded in the non-volatile memory and the display will change to “Iop Write”.

Display Precedure:

1. With the power ON, press the CD x button while pressing the MD REC z and MD x buttons together.

2. Press the

3. Press the

4. “@@.@/##.#” is displayed and the recorded contents are displayed. @@.@ : indicates the Iop value labeled on the pick-up. ##.# : indicates the Iop value after adjustment

5. To end, press MENU/NO (R) button to display “Iop Read”.

(R) , >(R) button to display “Service”, and press the ENTER/YES (R) button.

(R) , >(R) button to display “Iop Write”, and press the ENTER/YES (R) button.

(R) , >(R) button.

(R) , >(R) button to display “Service”, and press the ENTER/YES (R) button.

(R) , >(R) button to display “Iop Read”, and press the ENTER/YES (R) button.

Checks Prior to Parts Replacement and Adjustments

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

Laser power check

Traverse check

Focus bias check

C PLAY check

Self-recording/playback check (REC/PLAY)

TEMP check (Temperature compensation offset check)

Criteria for Determination

(Unsatisfactory if specified value is not satisfied)

• 0.9 mW power Specified value : 0.84 to 0.92 mW

• 7.0 mW power Specified value : 6.8 to 7.2 mW lop (at 7mW)

• Labeled on the optical pickup Iop value ± 10mA

• Traverse waveform Specified value : Below 10% offset

• Error rate check Specified value : For points a, b, and c C1 error : Below 220 AD error : Below 2

• Error rate check Specified value: a.When using test disc (MDW-74/AU-1)

C1 error : Below 80 AD error : Below 2

b.When using check disc (TDYS-1)

C1 error : Below 50

• CPLAY error rate check Specified value: C1 error : Below 80 AD error : Below 2

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

Measure if unsatisfactory:

• Clean the optical pick-up

• Adjust again

• Replace the optical pick-up

If always unsatisfactory:

• Replace the overwrite head

• Check for disconnection of the circuits around the

overwrite head

If occasionally unsatisfactory:

• Check if the overwrite head is distorted

• Check the mechanism around the sled

• Check for disconnection of the circuits around D101

(BD board)

• Check the signals around IC101, IC121, CN102, CN103 (BD board)

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.

Retry Cause Display Mode

• In this test mode, the causes for retry of the unit during recording can be displayed on the fluorescent indicator tube. During playback, the “track mode” for obtaining track information will be set. This is useful for locating the faulty part of the unit.

• The following will be displayed : During recording and stop : Retry cause, number of retries, and number of retry errors. During playback : Information such as type of disc played, part played, copyright. These are displayed in hexadecimal.

Precedure:

1. Load a recordable disc whose contents can be erased into the unit.

2. Press the FUNCTION button and set the function to “MD”.

3. Press the MENU/NO button. When “Edit/Menu” is displayed on the fluorescent indicator tube, rotate the AMS dial to display “All

Erase?”.

4. Press the ENTER/YES button.

5. “All Erase??” is displayed on the fluorescent indicator tube.

6. Press the ENTER/YES button to display “Complete!!”, and press the x button immediately. Wait for about 10 seconds while pressing

the button.

7. When the “TOC” displayed on the fluorescent display tube goes off, release the x button.

8. Press the MD REC z button to start recording. Then press the MD u button and start recording.

9. To check the “track mode”, press the MD u button to start play.

10. To exit the test mode, press the ?/1 button, and turn OFF the power. When “TOC” disappears, disconnect the power plug from the

outlet. If the test mode cannot be exited, refer to “Forced Reset” on page 8.

Fig. 1 Reading the Test Mode Display (During recording and stop)

Fig. 2 Reading the Test Mode Display (During playback)

RTs@@c##c**

Fluorescent display tube display

@@ : Cause of retry ## : Number of retries ** : Number of retry errors

Higher Bits

Hexadecimal

Bit

Binary

Reading the Display:

Convert the hexadecimal display into binary display. If more than two causes, they will be added.

84218421

b7 b6 b5 b4 b3 b2 b1 b0

00000001

00000010

00000100

00001000

00010000

00100000

01000000

10000000

Lower Bits

Hexa-

decimal

Cause of Retry Occurring conditions

shock

ader5

Discontinuous adress

DIN unlock

FCS incorrect

IVR rec error

CLV unlock

Access fault

Fluorescent display tube display

Reading the Retry Cause Display

@@####**$$

@@ : Parts No. (name of area named on TOC) ## : Cluster ** : Sector $$ : Track mode (Track information such as copyright

} Address (Physical address on disc)

information of each part)

When track jump (shock) is detected

When ADER was counted more than five times

continuously

When ADIP address is not continuous

When DIN unlock is detected

When not in focus

When ABCD signal level exceeds the specified range

When CLV is unlocked

When access operation is not performed normally

Example

When 42 is displayed: Higher bit : 4 = 0100 n b6 Lower bit : 2 = 0010 n b1

In this case, the retry cause is combined of “CLV unlock” and “ader5”.

When A2 is displayed: Higher bit : A = 1010 n b7+b5 Lower bit : 2 = 0010 n b2

The retry cause in this case is combined of “access fault”, “IVR rec error”, and “ader5”.

Reading the Track Mode Display

Higher Bits Lower Bits

Hexadecimal

Bit

Binary

Reading the Display:

Convert the hexadecimal display into binary display. If more than two causes, they will be added.

Example When 84 is displayed:

Higher bit : 8 = 1000 n b7 Lower bit : 4 = 0100 n b2 In this case, as b2 and b7 are 1 and others are 0, it can be determined that the retry cause is combined of “emphasis OFF”, “monaural”, “original”, “copyright exists”, and “write allowed”.

Example When 07 is displayed:

Higher bit : 0 = 1000 n All 0 Lower bit : 7 = 0111 n b0+b1+b2 In this case, as b0, b1, and b2 are 1 and others are 0, it can be determined that the retry cause is combined of “emphasis ON”, “stereo”, “original”, “copyright exists”, and “write prohibited”.

84218421

b7 b6 b5 b4 b3 b2 b1 b0

00000001

00000010

00000100

00001000

00010000

00100000

01000000

10000000

Hexa-

decimal

When 0 When 1

Emphasis OFF

Monaural

This is 2-bit display. Normally 01.

01:Normal audio. Others:Invalid

Audio (Normal)

Original

Write prohibited

Details

Emphasis ON

Stereo

Invalid

Digital copy

No copyright

Write allowed

Hexadecimal n Binary Conversion Table

Hexadecimal Binary Hexadecimal Binary

0000

0001

0010

0011

0100

0101

0110

0111

1000

1001

1010

1011

1100

1101

1110

1111

SECTION 2

GENERAL

LOCATION OF CONTROLS

• Front View

wk wj

1 TAPE deck 2 Liquid crystal display 3 TAPE Y button

5 6

q; qa

qs qd

qf qg qh

w;waws

qkqlwg

4 TAPE Z button 5 TAPE x button 6 TAPE X button 7 TAPE REC z button 8 DSG button and indicator 9 VOLUME knob 0 MD 6 button !¡ MD x button !™ MD u button !£ MD REC z button !¢ CD 6 button !∞ CD x button !§ CD u button !¶ CD > button !• CD . button !ª TUNER/BAND button @º REPEAT DOLBY NR button and indicator @¡ PLAY MODE DIRECTION button and indicator @™ FUNCTION button and indicator @£ ENTER/START button and indicator @¢ SYNCHRO REC button and indicator @∞ PHONES jack @§ ?/1 button and indicator @¶ Remote sensor @• BASS knob @ª TREBLE knob

• Rear View

3 4

2 1

1 FM ANTENNA terminals 2 AM LOOP ANTENNA terminals 3 LINE OUT jacks 4 VIDEO IN jacks 5 SPEAKER terminals

Photo: US model

Step 2: Setting the time

You must set the time beforehand to use the timer functions. The clock is on a 24-hour system for the European model, and a 12-hour system for other models. The 24-hour system is used for illustration purposes.

`/1

1 2

4,6

Press . or > to set the hour.

Press ENTER/YES or CURSORt.

The minute indication flashes.

Press . or > to set the minute.

Press ENTER/YES.

The clock starts.

This section is extracted from instruction manual.

CURSORT

3,5

Turn on the system.

Press CLOCK/TIMER SET.

The clock appears and the hour indication flashes.

4 3,5

DISPLAY

If you made a mistake

Press CURSORT or t repeatedly until the incorrect item flashes, then set it again.

To change the preset time

You can change the preset time while the system is off.

1 Press DISPLAY to display the clock. 2 Press CLOCK/TIMER SET. 3 Repeat steps 3 to 6 of “Setting the time.”

Tip

The upper dot of the colon flashes for the first 30 seconds, and the lower dot flashes for the last 30 seconds of each minute.

SECTION 3

)

DISASSEMBLY

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

3-1. COVER (UPPER)

4 Cover (upper)

1 Two screws

(case3 TP2)

2 Four screws

(BTP3 × 8)

3 Two screws

(case3 TP2

3-2. TAPE MECHANISM DECK

Tape mechanism deck

Two screws (BTP3

Flat wire (12 core)

Connecto

Two screws (BTP3

3-3. FRONT PAENL SECTION

3 Screw

(KTP3 × 6)

Two claws

4 Two screws

(BTP3 × 8)

1 Connector

(CN303)

2 Flat wire

5 Screw

(KTP3 × 6)

6 Front panel section (There is a claw.)

3-4. MD MECHANISM DECK

1 Screw

(BTP3 × 8)

2 Screw

(BTP3 × 8)

3-5. DIGITAL BOARD

1 Screw (+BVTP 3 × 8)

3 Digital board

5 Two screws

(+PTPWHM 2.6)

2 Harness

1 Screw

(+BVTP 3 × 8)

6 Two screws (+PTPWHM 2.6)

7 Screw (+BVTP 3 × 8)

MD LID

3-6. CD MECHANISM DECK

MD LID TORSION SPRING

3 Screw

(BTP3 × 8)

4 CD mechanism deck

2 flat wire (19 core)

(CN805)

1 connecto

3-7. UPPER CHASSIS

Upper chassis

Screw

(+BTP 3

3-8. TRAY

5 Pull the tray

2 Belt

1 Rotate the control cam in the direction of arrow A

4 Motor board

3 Two screws

(+BTP 2.6 × 6)

3-9. CAM

SW lever

Torsion spring

Spacer (55)

Gear

Pulley

Gear

Roller

Cam

3-10. SLIDER (CAM)

Bracket (Guide L)

Two screws (BTP2.6x6)

Leaf spring

Slider (Cam)

Set the shaft of Cam gear to be at the position in the figure.

Set the shaft of Lever (O/C) to be at the position in the figure.

Two screws (BTP2.6x6)

Bracket (Guide R)

3-11. BASE UNIT (MBU-5A) AND BD (MD) BOARD

Flexible board

(CN104)

Flexible board

(CN101)

(BTP2.6x6)

Base unit (MBU-5A)

Three screws

Screw (M1.7x4)

3-12. SW BOARD AND LOADING MOTOR (M103)

Two screws

(PWH1.7x3)

BD (MD) board

Gear B

Screw (PTPWH M2.6x6)

Loading motor (M103)

Remove the solder (Five portion)

SW board

Two screws (BTP2.6x6)

SECTION 4

SERVICE MODE

[Panel Test Mode]

Procedure:

1. Set to standby state.

2. Press three buttons of PLAY MODE DIRECTION , CD x ,

and DSG simultaneously.

3. Liquid crystal display and LED are all turned on.

4. Pless MD Z to enter the version display mode. (destination,

MC, CD, ST, TC, TA, TM)

5. Press MD u to enter the KEY, VOL, check mode. ( m . and M > must be pressed for several seconds.)

6. To exit from this mode, press the buttons in the same way as step 2.

[Tape Deck Aging Mode]

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

Procedure:

1. Set a tape in the tape deck.

2. Set to standby state.

3. Press three buttons of TAPE x , CD x , (CD), and TAPE simultaneously.

4. The aging is executed in bellow sequence.

5. To exit from the aging mode, press the ?/1 button to turn the power OFF.

[CD Aging Mode]

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

Procedure:

1. Load a CD disc.

2. Set to standby state.

3. Press three buttons of TAPE x , CD x , and TUNER

simultaneously.

4. The aging is executed in bellow sequence.

5. To exit from the aging mode, press the ?/1 button to turn the

power OFF.

Aging mode sequence:

Start

Open the disc tray

Close the disc tray

Play the last track

Aging mode sequence:

Start

FWD Play

REC pause for 3 seconds

FWD REC

Fast forward

REV Play

REC pause for 3 seconds

1 minute

3 minutes

1 minute

Shut off

[Cold Reset]

Clears all the memories and starts up the machine again.

Procedure:

1. POWEWR ON state is in progress.

2. Press three buttons of CD x , PLAY MODE DIRECTION , and MD Z simultaneously.

[Hot Reset]

Starts up the machine again holding the memory data.

Procedure:

1. POWEWR ON state is in progress.

2. Press three buttons of CD x , PLAY MODE DIRECTION , and MD u simultaneously.

REV REC

3 minutes

Rewind

Shut off

SECTION 5

TEST MODE (MD)

5-1. PRECAUTIONS FOR USE OF TEST MODE

• Use the RM-SJ373 supplied remote control (R).

• As loading related operations will be performed regardless of the test mode operations being performed, be sure to check that the disc is stopped before setting and removing it. Even if the MD Z 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 MD Z button after pressing the MENU/NO (R) button and the rotation of disc is stopped.

5-1-1. Recording laser emission mode and operating buttons

• Continuous recording mode (CREC MODE)

• Laser power check mode (LDPWR CHECK)

• Laser power adjustment mode (LDPWR ADJUST)

• Traverse (MO) check (EF MO CHECK)

• Traverse (MO) adjustment (EF MO ADJUST)

• When pressing the MD REC z button.

5-2. SETTING THE TEST MODE

The following are two methods of entering the test mode. Procedure 1: With the power ON, press the CD x button while pressing the MD x and MD REC z buttons together.

When the test mode is set, “Check” will be displayed. .(R) , > (R) switches between the following four groups;

···Nn Check Nn Adjust Nn Service Nn Develop Nn ···.

Procedure 2: With the power ON, press the CD x button while pressing the MD x and SYNCHRO REC buttons together.

When the test mode is set, “TEMP CHECK” will be displayed. By setting the test mode using this procedure, only the “Check” group of procedure 1 can be executed.

5-3. EXITING THE TEST MODE

Press the button, ?/1

5-4. BASIC OPERATIONS OF THE TEST MODE

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

Function name

.(R) > (R)

ENTER/YES (R) button

MENU/NO (R) button

[MC Cold Reset]

Clears the MD memory.

Procedure:

1. POWEWR ON. FUNCTION MD.

2. Press CD x , MD x and REPEAT simultaneously.

[MD SERVICE END]

Ends the service mode and clears the nonvolatile moemory.

Procedure:

1. The service mode is in progress.

2. Press CD x , MD x and ENTER/START simultaneously.

Changes parameters and modes

Proceeds onto the next step. Finalizes input.

Returns to previous step. Stops operations.

Function

[MD FLASH UP-DATE]

Writes data in the FLASH ROM from the disk.

Procedure:

1. POWER ON.

2. Press CD x , MD x and ?/1 simultaneously.

5-5. SELECTING THE TEST MODE

There are 31 types of test modes as shown below. The groups can be switched .(R) , > (R) . After selecting the group to be used. After setting a certain group, .(R) , > (R) between these modes. Refer to “Group” in the table for details selected. All items used for servicing can be treated using group S. So be carefully not to enter other groups by mistake.

Display

TEMP CHECK

LDPWR CHECK

EF MO CHECK

EF CD CHECK

FBIAS CHECK

S curve CHECK

VERIFY MODE

DETRK CHECK

TEMP ADJUST

LDPWR ADJUST

EF MO ADJUST

EF CD ADJUST

FBIAS ADJUST

EEP MODE

MANUAL CMD

SVDATA READ

ERR DP MODE

SLED MOVE

ACCESS MODE

0920 CHECK

HEAD ADJUST

CPLAY2 MODE

CREC2 MODE

ADJ CLEAR

AG Set (MO)

AG Set (CD)

Iop Read

Iop Write

INFORMATION

CPLAY MODE

CREC MODE

Contents

Temperature compensation offset check

Laser power check

Traverse (MO) check

Traverse (CD) check

Focus bias check

S letter check

Non-volatile memory check

Detrack check

Temperature compensation offset adjustment

Laser power adjustment

Traverse (MO) adjustment

Traverse (CD) adjustment

Focus bias adjustment

Non-volatile memory control

Command transmission

Status display

Error history display, clear

Sled check

Access check

Outermost circumference check

Head position check

Same functions as CPLAY MODE

Same functions as CREC MODE

Initialization of non-volatile memory of adjustment value

Auto gain output level adjustment (MO)

Auto gain output level adjustment (CD)

IOP data display

IOP data write

Microprocessing version display

Continuous play mode

Continuous recording mode

Mark

(X)

(X) (!)

(X)

Group (*)

C S

CASD

Group (*)

C: Check S: Service

A: Adjust D: Develop

• For details of each adjustment mode, refer to “6. Electrical Adjustments”.

• If a different mode has been selected by mistake, press the MENU/NO (R) button to exit that mode.

• Modes with (X) in the Mark column are not used for servicing and therefore are not described in detail. If these modes are set acciden-

tally, press the MENU/NO (R) button to exit the mode immediately. Be especially careful not to set the modes with (!) as they will overwrite the non-volatile memory and reset it, and as a result, the unit will not operate normally.

5-5-1. 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) and > (R) buttons and display “CPLAY MODE”. 3 Press the ENTER/YES (R) button to change the display to “CPLAY MID”. 4 When access completes, the display changes to “C1 = 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 MID” n “CPLAY OUT” n “CPLAY IN”

When pressed another time, the parts to be played back can be moved. 2 When access completes, the display changes to “C1 = 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 MODE”. 2 Press the MD Z button to remove the disc.

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

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

5-5-2. 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) and > (R) buttons and display “CREC MODE”. 3 Press the ENTER/YES (R) button to change the display to “CREC MID”. 4 When access completes, the display changes to “CREC ( )” and “REC” indicator lights up.

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.

“CPLAY MID” n “CPLAY OUT” n “CPLAY IN”

When pressed another time, the parts to be recorded can be changed. “REC” indicator goes off. 2 When access completes, the display changes to “CREC ( Note : The numbers “ ” displayed shows you the recording position addresses.

3. Ending the continuous recording mode

1 Press the MENU/NO (R) button. The display changes to “CREC MODE” and “REC” indicator goes off. 2 Press the MD Z button to remove 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.

5-5-3. Non-Volatile Memory Mode (EEP MODE)

This mode reads and writes the contents of the non-volatile memory. It is not used in servicing. If set accidentally, press the MENU/NO (R) button immediately to exit it.

)” and “REC” indicator lights up.

5-6. FUNCTIONS OF OTHER BUTTONS

Function

MD u MD REC z MD x

M * m *

CLEAR (R)

PLAY MODE

DISPLAY (R) MD Z

* This function works only when the MD x button is pressed and “MD” is displayed. In other cases, it works everytime the MD x

Sets continuous playback when pressed in the STOP state. When pressed during continuous playback, the tracking servo turns ON/OFF.

Continuous recording.

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 between the pit and groove modes when pressed.

Switches the spindle servo mode (CLV S ˜ CLV A).

Switches the displayed contents each time the button is pressed

Ejects the disc

button is pressed.

Contents

5-7. TEST MODE DISPLAYS

Each time the DISPLAY (R) button is pressed, the display changes in the following order.

1. Mode display

Displays “TEMP ADJUST”, “CPLAYMODE”, etc.

2. Error rate display

Displays the error rate in the following way.

C1 = AD = C1 = Indicates the C1 error. AD = Indicates ADER.

Mode display

Error rate display

3. Address display

The address is displayed as follows. (MO:recordable disc, CD:playback only disc) Pressing the CLEAR button switches between the groove display and pit display. h = s = (MO pit and CD) h = a = (MO groove) h = Indicates the header address. s = Indicates the SUBQ address. a = Indicates the ADIP address.

Note: “–” is displayed when servo is not imposed.

4. Auto gain display (Not used in servicing)

The auto gain is displayed as follows.

MEANINGS OF OTHER DISPLAYS

AG = / [OK]

Display

5. Detrack check display (Not used in servicing)

The detrack is displayed as follows. ADR =

6. IVR display (Not used in servicing)

The IVR is displayed as follows. [ ] [ ] [ ]

u/MD *

REC

SYNC

LEVEL-SYNC

OVER

REPEAT

TRACK

DISC

SHUFFLE

MONO

During continuous playback

(CLV: ON) (Green)

Tracking servo OFF (Unber)

Recording mode ON

CLV low speed mode

ABCD adjustment completed

Tracking offset cancel ON

Tracking auto gain OK

Focus auto gain OK

Pit

High reflection

CLV S

CLV LOCK

Address display

Auto gain display (Not used in servicing)

Detrack check display (Not used in servicing)

IVR display (Not used in servicing)

Contents

When Lit

STOP (CLV: OFF) (Light off)

Tracking servo ON (Green)

Recording mode OFF

CLV normal mode

Tracking offset cancel OFF

Groove

Low reflection

CLV A

CLV UNLOCK

When Off

* Differentiate MD u by the color of the button indicator.

ELECTRICAL ADJUSTMENTS

MD SECTION

6-1. Parts Replacement and Adjustment

• Check and adjust the MDM and MBU as follows. The procedure changes according to the part replaced

• Temperature compensation offset check

• Laser power check

• Traverse check

• Focus bias check

• C PLAY check

• Self-recording/playback check

SECTION 6

• Abbreviation OP : Optical pick-up OWH: Overwrite head

Parts Replacement and Repair

Has the OWH been replaced?

Has OP, IC171, IC101, or IC121 been replaced?

YES

Initial setting of the adjustment value

Has OP or IC171 been replaced?

Check the sleding and spindle mechanisms. Other causes can be suspected.

YES

IOP information recording (IOP value labeled on OP)

Has IC171 or D101 been replaced?

YES

Temperature compensation offset adjustment

• Laser power adjustment

• Traverse adjustment

• Focus bias adjustment

• Error rate adjustment

• Focus bias check

• Auto gain adjustment

+ 56 hidden pages

Sony HCD-CP33 Service manual

TABLE OF CONTENTS

SERVICING NOTE

GENERAL

DISASSEMBLY

SERVICE MODE

TEST MODE (MD)

ELECTRICAL ADJUSTMENTS