Sony HCDM-333 Service manual

HCD-M333

SERVICE MANUAL

Ver 1.1 2003. 05

HCD-M333 is the Amplifier, CD play er , MD deck, Tape player and Tuner section in CMT-M333NT.

US and foreign pafents lisensed from Dolby Labaratories.

Photo : SILVER TYPE

Model Name Using Similar Mechanism NEW

Section

Tape deck

Section

CD Mechanism Type CDM55A-30BBD61B Base Unit Type BU-30BBD61B Optical Pick-up Type A-MAX. 3 Model Name Using Similar Mechanism HCD-CP505 MD Mechanism Type MDM-7S2D Optical Pick-up Type KMS-262E Model Name Using Similar Mechanism NEW Tape Transport Mechanism Type CMAL1Z-236A

Canadian Model

AEP Model

UK Model

E Model

Chinese Model

Australian Model

Amplifier section

Canadian model: Continuous RMS power output (reference):

Total harmonic distortion less than 0.09%

European model: DIN power output (rated): 20 + 20 W

Continuous RMS power outpu t (reference):

Music power output (reference):

Other models: DIN power output: 20 + 20 W

Continuous RMS power outpu t (reference):

25 + 25 W (6 ohms at 1 kHz, 10% THD)

(6 ohms at 1 kHz, 6 W)

(6 ohms at 1 kHz, DIN)

25 + 25 W (6 ohms at 1 kHz, 10% THD)

45 + 45 W

(6 ohms at 1 kHz, DIN)

25 + 25 W (6 ohms at 1 kHz, 10% THD)

SPECIFICATIONS

Inputs ANALOG IN: Sensitivity 250 mV,

impedance 47 kilohms DIGITAL OPTICAL IN (supported sampling frequencies: 32 kHz, 44.1 kHz and 48 kHz) Outputs PHONES (stereo minijack):

accepts headphones with

an impedance of 8 ohms or

more SPEAKER: accepts impedance of 6 to

16 ohms

CD player section

Laser Semiconductor laser

(CD: λ=780 nm)

Emission duration:

continuous Frequency response 2 Hz – 20 kHz

MICRO HI-FI COMPONENT SYSTEM

MD deck section

System Minidisc digital audio

Laser Semiconductor laser

Sampling frequency 44.1 kHz Frequency response 5 Hz – 20 kHz

Tape deck section

Recording system 4-track 2-channel stereo Frequency response 60 – 10,000 Hz (±3 dB),

system

(λ=780 nm) Emission duration: continuous

using Sony TYPE I cassettes

— Continued on next page —

9-877-180-02

Sony Corporation

Home Audio Company Published by Sony Engineering Corporation

HCD-M333

Ver 1.1 2003.05

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range North American model: 87.5 – 108.0 MHz

Other models:

Aerial FM lead aerial Aerial terminals 75 ohms unbalanced Intermediate frequency 10.7 MHz

AM tuner section

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

European model: 531 – 1,602 kHz

(100 kHz step)

87.5 – 108.0 MHz (50 kHz step)

(with the tuning in te r v a l set at 10 kHz) 531 – 1,710 kHz (with the tuning in te r v a l set at 9 kHz)

(with the tuning interval set at 9 kHz)

Other models: 530 – 1,710 kHz

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

Aerial AM loop aerial, external

aerial terminal

Intermediate frequency 450 kHz

General

Power requirements North American model: 120 V AC, 60 Hz

European model: 230 V AC, 50/60 Hz Korean model: 220 V AC, 60 Hz Other models: 220 – 240 V AC, 50/60 Hz Power consumption

European model: 65 W

0.3 W or less (in Power Saving mode)

Other models: 65 W

Dimensions (w/h/d) incl. projecting parts and controls Amplifier/Tuner/Tape/MD/CD section:

Mass Amplifier/Tuner/Tape/MD/CD section:

Design and specifications are subject to change without notice.

Approx. 160 ×217 × 345 mm

Approx. 5.6 kg

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.

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.

This appliance is classified as a CLASS 1 LASER product. This label 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.

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.)

HCD-M333

Ver 1.1 2003.05

1. SERVICING NOTES ····················································· 10

2. GENERAL ········································································ 14

3. DISASSEMBLY ······························································ 16

3-1. Top Panel Section·······················································17 3-2. Cassette Mechanism Deck ········································· 18 3-3. Front Panel Section ···················································· 18 3-4. PANEL Board, H/P Board, LED Board ····················· 19 3-5. Back Panel Section····················································· 20 3-6. MAIN Board ······························································ 20 3-7. MD Mechanism Deck (MDM-7S2D) ························ 21 3-8. MD DIGITAL Board··················································21 3-9. Holder Assy ································································22 3-10. BD (MD) Board ························································· 22 3-11. Motor Section ····························································· 23 3-12. Over Write Head (HR901) ········································· 23 3-13. Mini Disc Device (KMS-262E) ································· 24 3-14. POWER Board, Tuner (FM/AM)······························· 24 3-15. REG Board, AMP Board············································ 25 3-16. TRANS Board ···························································· 25 3-17. CD Mechanism Deck (CDM55A-30BBD61B) ········· 26 3-18. Cam (CDM55) ··························································· 26 3-19. Base Unit (BU-30BBD61B) ······································ 27 3-20. Optical Pick Up (BU-30B Assy) ································ 27

4. TEST MODE ···································································· 28

5. ELECTRICAL ADJUSTMENTS

TAPE SECTION ·································································· 33 CD SECTION ······································································ 35 MD SECTION ····································································· 36

6. DIAGRAMS······································································44

6-1. Circuit Boards Location ············································· 47 6-2. Block Diagrams

– CD Section – ··························································· 48 – MD Section – ·························································· 49 – USB Section – ························································· 50 – MAIN Section – ······················································ 51

6-3. Printed Wiring Board – BD (CD) Board –················· 52 6-4. Schematic Diagram – BD (CD) Board – ··················· 53 6-5. Printed Wiring Board – BD (MD) Board –················ 54 6-6. Schematic Diagram – BD (MD) Board (1/2) – ·········· 55 6-7. Schematic Diagram – BD (MD) Board (2/2) – ·········· 56 6-8. Printed Wiring Board – MD DIGITAL Board – ········ 57 6-9. Schematic Diagram – MD DIGITAL Board (1/2) – ·· 58 6-10. Schematic Diagram – MD DIGITAL Board (2/2) – ·· 59 6-11. Printed Wiring Board – TC Board – ·························· 60 6-12. Schematic Diagram – TC Board – ····························· 61 6-13. Printed Wiring Board – MAIN Section –··················· 62 6-14. Schematic Diagram – MAIN Section (1/2) –·············63 6-15. Schematic Diagram – MAIN Section (2/2) –·············64 6-16. Printed Wiring Board – H/P Board – ························· 65 6-17. Schematic Diagram – H/P Board – ···························· 66 6-18. Printed Wiring Board – PANEL Section –·················67 6-19. Schematic Diagram – PANEL Section –···················· 68 6-20. Printed Wiring Board

– REG Board / TRANS Board – ································ 69 6-21. Schematic Diagram – REG Board / TRANS Board – 70 6-22. Printed Wiring Board – AMP Board – ······················· 71 6-23. Schematic Diagram – AMP Board –··························72 6-24. Printed Wiring Board – POWER Board –·················· 73 6-25. Schematic Diagram – POWER Board – ···················· 74 6-26. IC Block Diagrams·····················································75 6-27. IC Pin Function Description ······································ 84

7. EXPLODED VIEWS

7-1. Overall Section···························································90 7-2. Front Panel Section ···················································· 91 7-3. Back Panel Section····················································· 92 7-4. MD Mechanism Deck Section-1 (MDM-7S2D)········93 7-5. MD Mechanism Deck Section-2 (MDM-7S2D)········94 7-6. CD Mechanism Deck Section-1

(CDM55A-30BBD61B) ·············································95 7-7. CD Mechanism Deck Section-2 (BU-30BBD61B) ··· 96

8. ELECTRICAL PARTS LIST ······································· 97

: 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.

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.

HCD-M333

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 o r five letters and a message alternately to show you the prob lem. 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. cRemove the MD a nd slid e the ta b to c los e t he s lot

(page 15).

C12/Cannot Copy

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

cRemove the disc and turn off the system once,

then turn it on again.

C13/REC Error

Recording could not be performed properly. cMove 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.

cReplace the MD and start recording over from the

beginning.

C41/Cannot Copy

The sound source is a copy of a commercially available music software or CD-R.

c The Serial Copy Management System prevents

making a digital copy (page 64). In addition, you cannot copy from a CD-R.

C71/Check OPT-IN

No component is connected to the DIGITAL OPTICAL IN jack, or you tried to record from the digital component which is not connected correctly.

c Connect the optional digital component correctly

to the DIGITAL OPTICAL IN jack using the digital optical cable (not supplied) (page 52).

The power of the connected component is not turned on.

c Check if the power of the connected digital

component is on. Refer to the operating instructions supplied with the component.

The digital optical cable is disconnected, or the power of the connected component is turned off while recording the digital audio from the component connected to the DIGITAL OPTICAL IN jack.

c Connect the digital optical cable, or turn on the

power of the connected component.

E0001/MEMORY NG

The component has internal problem. c Consult your nearest Sony dealer.

E0101/LASER NG

There is a problem with the laser pickup. c The laser pickup may be damaged. Consult your

nearest Sony dealer.

E0201/LOADING NG

There is a problem with loading. c Consult your nearest Sony dealer.

C13/Read Error

The MD deck cannot read the disc information properly.

cRemove the MD once, then insert it again.

C14/TOC Error

The MD deck cannot read the disc information properly.

cReplace the MD. cErase all the recorded c ontents of the MD using

the All Erase Function (page 29).

HCD-M333

Messages

One of the following messages may appear or flash in the display during operation.

Cannot Edit

You tried to label a CD-TEXT disc.

CD No Disc

There is no disc in the player.

Name Full

There are already 50 disc titles stored in the system.

OVER

You have reached the end of the disc while pressing M during playback or pause.

Step Full!

You tried to program 26 or more tracks (steps).

Group Full!

An attempt was made to create a new group in excess of the maximum number of groups, or there are insufficient chara cters for updating the group management information.

Impossible

•You tried to make an impossible editing

operation.

•You cannot perform Net MD operations during

timer playback.

•You cannot combine or er ase the tracks due to the

system limitations of MDs.

Incomplete!

Adjustment of the recording level after recording or Fade-in and Fade-out procedures have failed since the system was either subject to vibration or there is a damaged or dirty disc in the tray.

Initialize

The power was off for a long time, so the system is initializing itself.

Assign None

All the tracks on an MD are registered into groups.

Auto Cut

The MD deck is pausing the recording because silence continued for 30 seconds or more during digital recording.

Blank Disc

The inserted recordable MD is new, or a ll tr acks on the MD have been erased.

Cannot Edit

•A pre-mastered MD is in the deck.

•You tried to edit in Program or Shuffle Play mode.

•The track is recorded in MDLP mode.

Cannot REC

•A pre-mastered MD is in the deck.

•The function is switched to M D or PC.

Cannot SYNC!

•There is no disc in the MD deck, or the MD is protected against erasure.

•There is no time remaining on the MD.

Complete!

The editing operation of the MD is completed.

Disc Full!

There is no time remaining on the MD.

Name Full!

There is no more space to store track, disc or group titles.

No Change

While attemptin g to change the recording level after recording, you pressed ENTER/YES without actually changing the recording level, so no change was made.

No Disc

There is no disc in the MD deck.

OVER

You have reached the end of the MD while pressing M during pause mode.

Push STOP!

You pressed an invalid button during playback.

—Rehearsal—

The MD is playing the specified point for confirma tion during the A-B Erase Func tio n and the Divide Function (pages 30 and 33).

Retry

A reading failure has occurred, and the system is trying to read the data again.

S.F Edit!

You attempted to perform another operation while in S.F Edit (changing the recording level after recording, Fade-in, Fade-out) mode.

Eject

The MD deck is ejecting the MD.

HCD-M333

S.F Edit NOW

You pressed ?/1 while in S.F Edit (changing the recording level after recording, Fade-in, Fade-out) mode.

Smart Space

The signal was input again after silence continued for 3 or more but less than 30 seconds during digital recording, and the silence was cut to 3 seconds.

Step Full!

You tried to program 26 or more tracks (steps).

TOC Reading

The MD deck is reading the TOC information of the MD.

TOC Writing

The MD deck is writing the information of recorded or edited contents.

Track End

You have reached the end of the track while adjusting the dividing point during the Divide Function.

Optional personal computer

Buffer

The personal computer is preparing the amount of data needed for playback while using the WEB RADIO function.

Busy NOW!

You pressed NET MD during check in or check out. Wait until the operation i s completed.

Cannot Found

•Check that the personal computer is correctly connected to the internet while using the WEB RADIO function.

•Check that the URL registered to the preset is input correctly.

Cannot Pause

•The MIDI file plays while using t he MUSIC LIBRARY function. You cannot pause MIDI file playback.

•You are playing a broadcast station that cannot be paused while using the WEB RADIO function.

Tr Protected

Tracks and other data that have been checked out on Net MD equipment are protected, s o you cannot use some of the MD editing functions.

TAPE

Cannot SYNC!

There is no tape in the tape deck, or the tab has been removed from the cassette.

No Tab

You cannot record the tape because the tab has been removed from the cassette.

No Tape

There is no tape in the tape deck .

Timer

OFF TIME NG!

The Daily Timer sta r t and end times are set to the same time.

OVERLAP!

The Daily Timer setting or the Timer Recording setting overlaps with part or all of another timer setting.

Cannot Play

Check that the music file is registered correctly to the MUSIC LIBRARY.

Check USB

The USB cable is not connected properly. Check the connection.

CONNECT

Check in and check out is underway. (If you attempt an invalid operation at this time, “CONNECT!” appears.)

Connecting

The personal computer is connecting to the broadcast station server.

Disconnect

•Check that the personal computer is correctly connected to the internet when using the WEB RADIO function.

•You were disconnected from the broadcast station server.

Net MD

The Net MD function is on. (If you attempt an invalid operation at this time, “Net MD!” appears.)

HCD-M333

Note 1:About “R”

As this unit has only a few buttons, some operations require the use of remote commander (RM-SM100W/provided with unit) 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 test mode is not entered properly.

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

How to Operate the Self-diagnostics Function (Error History Display Mode) Note: Use the self-diagnostics function in the "error history display mode" of the test mode. The least required procedure is described

below. Do not enter any other modes by mistake. If you have entered any other modes accidentally, press the MENU/NO “R” button to exit the mode.

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

2. Press the FUNCTION button to select the “MD” function.

3. While pressing the x button and the REC MODE button at the same time, press the Z (MD) button.

4. Press the > “R” button to display “[Service]”. Then press the ENTER/YES “R” button.

5. Press the > “R” button to display “Err Display”.

6. Press the ENTER/YES “R” button to enter the error history display mode and “op rec tm” appears.

7. Select the desired contents that you want to display or to execute using the . “R” button or the > “R” button.

8. Press the TIMER SET “R” button to display or to execute the selected contents.

9. Press the TIMER SET “R” button again to return to step 7.

10. Press the MENU/NO “R” button. The message “Err Display” appears and you exit the error history mode.

11. Press the REPEAT “R” button to exit the test mode.

12. Press the ?/1 button to turn off the power.

HCD-M333

Items of Error History Mode Items and Contents

Display

op rec tm

op play tm

spdl rp tm

retry err

total err

err history

retry adrs

er refresh

tm refresh

op change

spdl change

History

Displays the accumulated recording time. When the accumulated recording time is more than 1 minute, displays the hour and minute When less than 1 minute, displays “Under 1 min” The display time indicates the time when the laser is set to high power more, which is about 1/4 of the actual recording time.

Displays the accumulated playback time. When the accumulated playback time is more than 1 minute, displays the hour and minute When less than 1 minute, displays “Under 1 min”

Displays the accumulated rotating time of the spindle motor. When the accumulated rotating time is more than 1 minute, displays the hour and minute When less than 1 minute, displays “Under 1 min”

Displays the accumulated number of retry errors during recording and playback Displays “r during playback. This is displayed in hexadecimal from 00 to FF.

Displays the total number of errors Displays “total ”. This is displayed in hexadecimal from 00 to FF.

Displays the past ten errors. Displays “0X ErrCd@@”. X is the history number. The younger the number, the more recent is the history (00 is the latest). @@ is the error code. Select the error history number by pressing the . “R” or > “R” button.

Displays the past five retry addresses. Displays “ Select the error history number by pressing the . “R” or > “R” button.

Mode for erasing the error and retry address histories Procedure

1. Press the TIMER SET “R” button when displayed as “er refresh”.

2. When the display changes to “er refresh?”, press the ENTER/YES “R” button When “Complete!!” is displayed, it means erasure has completed. Be sure to check the following after executing this mode. *Data has been erased. *Perform recording and playback, and check that the mechanism is normal.

Mode for erasing the accumulated recording time and accumulated playing time. Procedure

1. Press the TIMER SET “R” button when displayed as “tm refresh”.

2. When the display changes to “tm refresh?”, press the ENTER/YES “R” button. When “Complete!” is displayed, it means erasure has completed.

Mode for erasing the accumulated time of op rec tm, op play tm. Use these histories as a guide line for the time of replacement of the optical pick-up. If the optical pick-up has been replaced, perform this procedure and erase the past history. Procedure

1. Press the TIMER SET “R” button when displayed as “op change”.

2. When the display changes to “op change?”, press the ENTER/YES “R” button. When “Complete!” is displayed, it means erasure has completed.

Mode for erasing the accumulated spdl rp tm time Use these histories as the guide line for the time of replacement of the spindle motor. If the spindle motor has been replaced, perform this procedure and erase the past history. Procedure

1. Press the TIMER SET “R” button when displayed as “spdl change”

2. When the display changes to “spdl change?”, press the ENTER/YES “R” button. When “Complete!” is displayed, it means erasure has completed.

p ”. after “r” is the number of errors during recording. after “p” is the number of errors

ADRS ”, is the history number, is the cluster with the retry error.

Table of Error Codes

Error Code Description

Could not perform loading

HCD-M333

The changer error occurred

Loading switches combined incorrectly

Timed out without reading the top of PTOC

Could read top of PTOC, but detected error

Timed out without accessing UTOC

Timed out without reading UTOC

Error in UTOC

Could not start playback

Error in sector

A cause of retry occurred during normal recording

Retried due to DRAM overflow

Retry occurred during TOC writing

Retry aborted during S.F editing

Other than access processing, and could not read address.

Focus NG occurred and overran.

HCD-M333

SECTION 1

SERVICING NOTE

Note 1:About “R”

As this unit has only a few buttons, some operations require the use of remote commander (RM-SM100W/provided with unit) 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 test mode is not entered properly.

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

Note 3:If the disc tray does not open and the message “LOCKED” appears, press the two buttons of x and Z (CD) at the same for

5 seconds or longer. Then the lock is released, the message “UNLOCKED” appears for 2 seconds and the disc tray opens.

Disc T ray Lock

The disc tray lock function for the antitheft of a demonstration disc in the store is equipped.

Procedure:

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

2. Select the function “CD”.

3. A disc is put in and a tray is closed.

4. Press two buttons of x and Z (CD) simultaneously for five seconds.

5. The message “LOCKED” is displayed and the tray is locked. (Even if turning power on/off, the tray is still locked.)

6. Press two buttons of x and Z (CD) simultaneously for five seconds again.

7. The message “UNLOCKED” is displayed and the tray is unlocked.

Service Position-1 (Checking TC Section)

MAIN BOARD

TC BOARD

cassette mechanism dec (CMAL1Z-233A)

Service Position-2 (Checking CD Mechanism and MD Mechanism Section)

MD DIGITAL BOARD

HCD-M333

MAIN BOARD

MD mechanism deck section (MDM-7S2D)

CD mechanism deck section (CDM55A-30BBD6)

Service Position-3 (Checking Power Supply Section)

Connect the POWER board (CN985) and the AMP board (CN805) with the extension cable (6P)(J-2501-229-A).

AMP BOARD

jig (6P) (J-2501-229-A)

REG BOARD

POWER BOARD

MAIN BOARD

HCD-M333

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.

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) GND : Ground TE : TRK error signal (Traverse adjustment) FE : Focus error signal VC : Reference level for checking the signal RF : RF signal (Check jitter)

I+3V

GND

Iop

I+3V Iop GND TE FE VC RF

CN105

I+3V Iop GND TE FE VC RF

for MDM-7S2

HCD-M333

Iop DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC195 OF BD (MD) BOARD) ARE REPLACED

The Iop value labeled on the optical pick-up can be stored in the non-volatile memory. By storing 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-v olatile memory (IC195 of BD (MD) board), store the Iop value on the optical pick-up according to the following procedure.

Record Precedure:

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

2. Press the FUNCTION button to select the “MD” function.

3. While pressing the x button and the REC MODE button at the same time, press the Z (MD) button.

4. Press the > “R” button to display “[Service]”. Then press the ENTER/YES “R” button.

5. Press the > “R” button to display “Iop Write” (C05) and press the ENTER/YES “R” button.

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

7. Input the Iop value written on the optical pick-up. To select the number : Press the . “R” button or the > “R” button. To select the digit : Press the TIMER SET “R” button.

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

9. As the adjustment results are stored for the 6 value. Leave it as it is and press the ENTER/YES “R” button.

10. “Complete!” will be displayed momentarily. The value will be stored in the non-volatile memory and the display will become “Iop Write” (C05).

11. Press the REPEAT “R” button to exit the mode.

12. Press the ?/1 button to turn off the power.

Display Precedure:

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

2. Press the FUNCTION button to select the “MD” function.

3. While pressing the x button and the REC MODE button at the same time, press the Z (MD) button.

4. Press the > “R” button to display “[Service]”. Then press the ENTER/YES “R” button.

5. Press the > “R” button to display “Iop Read” (C26) and press the ENTER/YES “R” button.

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

7. To end, press the MENU/NO “R” button to display “Iop Read” (C26). Then press the REPEAT “R” button.

8. Press the ?/1 button to turn off the power.

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 5 Electrical Adjustments”.

Laser power check (6-2 : See page 39)

Auto check (6-4 : See page 40)

Temperature compensation offset check (6-1 : See page 39)

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

• 0.93 mW power Specified value : 0.84 to 0.92 mW (KMS-262A)

0.90 to 0.96 mW (KMS-262E)

• 8.65 mW power Specified value : 8.1 to 8.7 mW (KMS-262A)

8.4 to 8.9 mW (KMS-262E)

• Iop (at 8.65 mW) Labeled on the optical pick-up Iop value ± 10mA

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

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

• Clean the optical pick-up

• Adjust again

• Replace the optical pick-up

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

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

Measure if unsatisfactory

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.

HCD-M333

Main unit

SECTION 2

GENERAL

This section is extracted from instruction manual.

ALPHABETICAL ORDER

A – L

DIRECTION qk (16, 40, 41) Disc tray 9 DISPLAY ql (9, 13, 39, 46, 47,

50) Display window 3 ENTER/START qf (15, 16, 40,

57) FM MODE/REPEAT qj (8, 12,

37, 38)

FUNCTION wa (7, 8, 9, 11, 12,

13, 17, 18, 19, 20, 21, 25, 27, 28, 29, 31, 32, 33, 34, 40, 41, 49, 53)

234

M – Z

MD slot 6 NET MD 0 (51) PHONES jack w; REC MODE qg (15, 17, 18, 22) Remote sensor 2 SYNCHRO MODE qh (15, 16,

40) TUNER BAND 5 (36, 37) TUNING +/– wd (36, 37) TUNING MODE/PLAY MODE

qk (7, 8, 11, 12, 23, 34, 36, 37)

VOLUME 8 (43, 50)

5 7

BUTTON DESCRIPTIONS

?/1 (power) 1 (6, 15, 23, 37, 43,

57)

TAPE nN (play) 4 (40)

Z MD (eject) 6 (11, 15, 23) Z PUSH OPEN/CLOSE (open/

close) 7 (16, 39)

Z CD (eject) 9 (7) z MD (record) qa (17) z TAPE (record) qs (41) X TAPE (pause) qd (40, 41) x (stop) ws (7, 11, 16, 40, 50, 57) m/M (rewind/fast forward)

wd (7, 11, 36, 40)

l/L (go back/go forward)

wd (7, 11, 19, 25, 37, 42, 43,

50)

MD NX (play pause) wf (11,

17)

CD NX (play pause) wg (7, 18)

wg wf wd ws wa

qkql qfqjqh

8 9 0 qa qs qd

Remote control

HCD-M333

ALPHABETICAL ORDER

A – L

BASS/TRE 9 (42) CLEAR 4 (9, 10, 13, 25, 38) CLOCK/TIMER SELECT wj

(43, 44)

CLOCK/TIMER SET wk (6, 43,

44)

DISPLAY wg (9, 13, 39, 46, 47,

50) DSG 0 (42) ENTER/YES qk (6, 8, 10, 12, 19,

21, 25, 27, 28, 29, 31, 32, 33,

34, 36, 38, 43, 44, 49) FM MODE 2 (37, 38) FUNCTION qd (7, 8, 9, 11, 12,

13, 17, 18, 19, 20, 21, 25, 27,

28, 29, 31, 32, 33, 34, 40, 41,

49, 53) GROUP qh (13, 16, 17, 18, 23,

25, 27, 28) GROUP SKIP qj (13, 16, 17, 18,

25, 28)

M – Z

MENU/NO wh (10, 19, 20, 21, 23,

26, 27, 28, 29, 31, 32, 33, 34, 36, 38)

NAME EDIT/SELECT qg (9, 25,

38, 49)

Number buttons ql (8, 9, 12, 25,

37)

PLAY MODE qa (7, 8, 11, 12,

23, 34) REPEAT 8 (8, 12) SCROLL w; (10, 26, 47) SLEEP wl (42) TUNER BAND 6 (36, 37) TUNING MODE 3 (36, 37) VOL +/– ws (43, 50)

BUTTON DESCRIPTIONS

?/1 (power) 1 (6, 15, 23, 43) +/– 5 (36, 37) ./> 5 (6, 7, 11, 19, 25,

42, 43, 50) CD NX 7 (7, 18) MD NX qs (11, 17) m/M qf (7, 11) TCURSOR/CURSORt qf (6,

9, 25) TAPE nN wa (40) MD z wd (17)

x wf (7, 11, 16, 40, 50)

1 2

qj qh

5 qd qs

8 09

wl wk wj

wf wd

HCD-M333

• The equipment can be removed using the following procedure.

TOP PANEL SECTION

SECTION 3

DISASSEMBLY

SET

CASSETTE MECHANISM DECK

PANEL BOARD, H/P BOARD,

LED BOARD

MD DIGITAL BOARD

BD (MD) BOARD

MOTOR SECTION

FRONT PANEL SECTION

BACK PANEL SECTION

MAIN BOARD

MD MECHANISM DECK

(MDM-7S2D)

HOLDER ASSY

OVER WRITE HEAD (HR901)

MINI DISC DEVICE (KMS-262E)

POWER BOARD, TUNER (FM/AM)

REG BOARD, AMP BOARD

TRANS BOARD

CAM (CDM55)

CD MECHANISM DECK

(CDM55A-30BBD61B)

BASE UNIT (BU-30BBD61B)

OPTICAL PICK UP (BU-30B ASSY)

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

)

3-1. Top Panel Section

case (T)

(Remove the

screw (BVTP 3

two screws (case 3 TP2)

direction of the arrow.

10)

)

HCD-M333

cover (B/P)

case (L)

(Remove the

two screws

(case 3 TP2)

direction of the arrow.

)

flat type wire

(19 core) (CN603)

case (R)

(Remove the

two claws

direction of the arrow.

two screws

(BVTP 3

)

two screws

(BVTP 3

10)

screw

(BVTP 3

two screws

(case 3 TP2

two screws

(case 3 TP2)

10)

HCD-M333

)

3-2. Cassette Mechanism Deck

lid (TC) assy

case (T)

tape mechanism deck

two screws (BVTP 3

flat type wire

(8 core) (CN602)

3-3. Front Panel Section

two screws (KTP 2

screw (BVTP 3

torsion spring (tc)

two screws (BVTP 3

TC board

two screws (BVTT 2.6

shield (tc2)

connector (CNP804

front panel section

screw

(BVTP 3

two screws (BVTP 3

flat type wire

(19 core) (CN108)

3-4. PANEL Board, H/P Board, LED Board

HCD-M333

front panel assy

knob spin (vol)

spacer (LCD)

front panel

LED board

Remove the two solderings.

screw (PTPWH M2.6

lid (MD)

torsion spring (lid MD)

two screws

(BVTP 2.6

two screws

It pushes into a front panel side at the time of attachment.

connector (CN403)

two screws

(BVTP 2.6

PANEL board

two screws

(BVTP 2.6

H/P board

four screws

(BVTP 2.6

HCD-M333

)

3-5. Back Panel Section

connector (CN803)

two nuts (N4)

two screws (B 4

12)

back panel

screw (BVTT 3

four screws (BVTP 3

three screws (BVTP 3

3-6. MAIN Board

connector (CNP998)

flat type wire

(23 core)(CN103)

DC fan

flat type wire

(11 core)(CN106)

two claws

flat type wire

(11 core)(CN110)

flat type wire

(25 core)(CN102)

connector (CNP104

connector (CNP109)

MAIN board

two screws (BVTP 3

3-7. MD Mechanism Deck (MDM-7S2D)

)

two screws (BVTP 3

shield MD (U)

two step screws

(BVTTWH M 3)

two insulators

MD mechanism deck

(MDM-7S2D)

two screws (BVTT 3 × 6)

flat type wire (17 core) (CN703)

flat type wire (27 core) (CN702

two step screws (BVTTWH M 3)

two screws (BVTT 3 × 6)

connector (CN704)

two insulators

HCD-M333

bracket (MD)

3-8. MD DIGITAL Board

screw (BVTP 3

ground plate (FFC)

flat type wire

(25 core) (CN703)

two screws (BVTP 3

MD DIGITAL board

bracket (MD)

A substrate is put into the bottom of claw of MD bracket at the time of attachment.

claw

HCD-M333

3-9. Holder Assy

tension spring (holder)

holder assy

hoo

3-10. BD (MD) Board

two screws

(+B (P) TRI 2

6 CZN)

flexible board

(CN101)

BD (MD) board

Remove the

two solderings (spindle motor)

Remove the two solderings (loading motor)

connector cable (CN104)

Remove the

two solderings (sled motor)

M102

M101

M103 S102

Remove the

three solderings

3-11. Motor Section

(PWH 1.7 × 3.5)

two screws

torsion spring (spindle)

belt (loading)

lever (head)

(M1.7 )

(PWH 1.7

tapping screw

gear (sa)

two screws

2.5)

HCD-M333

loading motor assembly

(M103)

3-12. Over Write Head (HR901)

over write head

(HR901)

(M101)

three tapping screws

(M1.7 )

screw (P 1.7 × 6)

sled motor assembl

(M102)

spindle motor assembly

HCD-M333

)

3-13. Mini Disc Device (KMS-262E)

main shaft

screw

(+B (P) TRI 2

6 CZN)

flexible board

Mini disc device (KMS-262E)

screw

(+B (P) TRI 2

base (BU-A)

two screws

(+KTP 2

6 CZN

base (BU-D)

3-14. POWER Board, Tuner (FM/AM)

connector (CN981)

connector (CN984)

connector (CN971)

flat type wire (11 core) (CN1)

tuner (FM/AM)

connector (CN997)

POWER board

screw (BVTT 3

screw (BVTP 3

3-15. REG Board, AMP Board

)

REG board

screw (BVTT 3

four screws (BVTP 2.6

two screws (BVTP 3

screw (BVTT 3

16)

HCD-M333

heat sink

flat type wire (11 core) (CN106)

AMP board

screw (BVTP 3

3-16. TRANS Board

power transformer (T900)

power cord

two screws (BVTT 3

screw (BVTT 3

two screws (BVTT 3

four screws (BVTT 3

TRANS board

HCD-M333

)

3-17. CD Mechanism Deck (CDM55A-30BBD61B)

loading panel asy

screw (BVTT 3

CD mechanism deck

(CDM55A-30BBD61B

3-18. Cam (CDM55)

Push the claw in the

direction of the arrow

gear (B)

spacer (55)

cam (CDM55)

roller

belt (CDM55)

pulley (LDG)

gear (A)

Pull out the tray in the direction of the arrow A. While pushing this claw in the direction of the arrow release the lock.

Pull out the tray.

Release the lock.

3-19. Base Unit (BU-30BBD61B)

)

floating screw

(+PTPWH M2.6)

Remove the base unit (BU-30BBD61B

in the direction of the arrow A.

HCD-M333

chassis (55D)

3-20. Optical Pick Up (BU-30B Assy)

two insulators

Remove the two solderings

BD (CD) board

BU-30B assy

two floating screws

(+PTPWH M2.6)

two insulators

Remove the two soldering

flat type wire (16 core)

floating screw

(+PTPWH M2.6)

bu holder (BU-30)

two compression springs

floating screw

(+PTPWH M2.6)

HCD-M333

SECTION 4

TEST MODE

Note 1:About “R”

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

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

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

2. Press three buttons x , ENTER/START and ?/1 simultaneously.

3. When this button is operated, all of the settings are reset. Then the POWER is turned off and the watch display appears.

2. Panel Test Mode

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

Procedure:

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

2. Press the FUNCTION button to enter mode other than “TUNER”.

3. Press three bottons x , ENTER/START and TUNER/BAND simultaneously.

4. When the panel test mode is activated, LEDs and LCD segments are all turned on.

2-1. Version check

1. When entering panel test mode, press the FM MODE/REPEA T b utton. The model name (“M333NT”) and destination are displayed, and the MD , CD and TAPE segments flash.

2. Each time the FM MODE/REPEAT button is pressed, the display changes “MC, GC, CD, CDD, CDMA, CDMB, BDA, BDB, ST, TA, TM, TC and MD” (returns to MC) in this order, and returns to the top of the version display.

3. When the REC MODE button is pressed while the version numbers are being displayed, year, month and day of the software creation appear. When the REC MODE button is pressed again, the display returns to the software version display.When the FM MODE/REPEAT button 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.

2-2. Key check

1. Press the TUNING MODE/PLA Y MODE button, and the key check mode is acti v ated. In the key 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. It is end at “K21J 0V 0”. A turn of VOLUME knob changes value of “V” between 0 and 9. If it turns to the right, a value will increase, and if it turns to the left, a value will decrease.

2. To exit from this mode, press three buttons in the same manner as step 3, or disconnect the power cord.

3. Common Test Mode

Procedure:

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

2. Press three buttons x , ENTER/START and TAPE Y simultaneously.

3. The set goes to the common test mode and the MD and TAPE segments flash.

3-1. Amp T est Mode

1. In the common test mode, every time you press the BASS/TRE “R” button, the follo wing items changes in the order as shown below.

“TONE MAX”

(BASS/TRE MAX, VOL MAX)

“TONE MIN”

“TONE FLAT”

2. When the VOLUME knob is turn clockwise or VOLUME + “R” button is pressed, VOLUME goes MAX.

3. When the VOLUME knob is turn counterclockwise or VOLUME – “R” button is pressed, VOLUME goes MIN.

4. To exit from this mode, press the

3-2. T ape Test

1. Check the set is in the common test mode.

2. Insert a recordable cassette tape.

3. Input audio signal into the analog input (SJ302).

4. Press the z TAPE button.

5. Select the recording direction with the TAPE Y button.

6. Press the X TAPE button to start recording.

7. When the lm – or + ML button knob against the tape recording direction is pressed, the tape returns to the recording started point and the set starts playback.

8. To exit from this mode, press the ?/1 button or disconnect the power cord.

(BASS/TRE MIN, VOL MAX) (BASS/TRE FLAT, VOL MAX)

button or disconnect the power cord.

?/1

4. CD Ship Mode (Setting the Position for Transportation)

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

2. Press the FUNCTION to change the function to “CD”.

3. Press two buttons x , ENTER/START and press the CD u button simultaneously.

4. The CD mechanism goes to the transportation mode.

5. When “LOCK” is displayed, disconnect the power cord.

6. The lock is released when the power turns on next.

5. Ship Mode (Setting the Position for Transportation)

This mode is the combination of CD SHIP mode and Cold reset. In this mode, the MD reset is not activated.

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

2. Press three buttons x , ENTER/START and press the MD u button simultaneously.

3. When “LOCK” is displayed, disconnect the power cord.

4. The lock is released when the power turns on next.

6. Disc Tray Lock

The disc tray lock function for the antitheft of a demonstration disc in the store is equipped.

Procedure:

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

2. Select the function “CD”.

3. A disc is put in and a tray is closed.

4. Press two buttons of x and Z (CD) simultaneously for five seconds.

5. The message “LOCKED” is displayed and the tray is locked. (Even if turning power on/off, the tray is still locked.)

6. Press two buttons of x and Z (CD) simultaneously for five seconds again.

7. The message “UNLOCKED” is displayed and the tray is unlocked.

HCD-M333

7. Repeat 5 Times Limit Release Mode

5 times limit of repeating TAPE, MD or CD is released.

Procedure:

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

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

3. The message “LIMIT OFF” is displayed, and repeat 5 times limit is released.

4. To exit from this mode, disconnect the power cord.

HCD-M333

MD TEST MODE

1. Precautions For Use of Test Mode

• As operations related to loading 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 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 2MODE) (C37)

• Laser power check mode (LDPWR CHECK) (C13)

• Laser power adjustment mode (LDPWR ADJUST) (C04)

• Comparison with initial Iop value written in nonvolatile memory (Iop Compare) (C27)

•Write current Iop value in read nonvolatile memory using microprocessor (Iop NV Save) (C06)

•Traverse (MO) check (EF MO CHECK) (C14)

•Traverse (MO) adjustment (EF MO ADJUST) (C07)

•When pressing the z MD button.

2. Setting the Test Mode

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

2. Press the FUNCTION button to enter “MD” mode.

3. Press three buttons of x , REC MODE and Z (MD) simultaneously. When the test mode is set, “[Check]” will be displayed. Pressing the . “R” or > “R” button between the

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

following three groups; ···Tt [Check] Tt [Service] Tt [Develop] Tt ···.

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 “R” button once or press the FM/MODE/REPEAT button and press the ?/1 button to turn the power off, the set goes to the standby mode.

4. Basic Operations of the Test Mode

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

Function name Function

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

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

TIMER SET button Selects the sub menu

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.

+ 82 hidden pages

Sony HCDM-333 Service manual

TABLE OF CONTENTS

SERVICING NOTE

GENERAL

DISASSEMBLY

3-1. Top Panel Section

3-2. Cassette Mechanism Deck

3-3. Front Panel Section

3-5. Back Panel Section

3-6. MAIN Board

3-7. MD Mechanism Deck (MDM-7S2D)

3-8. MD DIGITAL Board

3-9. Holder Assy

3-10. BD (MD) Board

3-11. Motor Section

3-12. Over Write Head (HR901)

3-13. Mini Disc Device (KMS-262E)

3-14. POWER Board, Tuner (FM/AM)

3-15. REG Board, AMP Board

3-16. TRANS Board

3-17. CD Mechanism Deck (CDM55A-30BBD61B)

3-18. Cam (CDM55)

3-19. Base Unit (BU-30BBD61B)

3-20. Optical Pick Up (BU-30B Assy)

TEST MODE