Sony HCDM-10 Service manual

HCD-M10

SERVICE MANUAL

Ver. 1.3 2005.02

HCD-M10 is the Amplifier, MD deck, CD player, Tape player and Tuner section in CMT-M100MD.

Model Name Using Similar Mechanism HCD-J300

Section

Tape deck

Section

CD Mechanism Type CDM55A1-K4BD43

Base Unit Type BU-K4BD43

Optical Pick-up Type KSM-213DHAP

Model Name Using Similar Mechanism HCD-C5

MD Mechanism Type MDM-7B4M

Optical Pick-up Type KMS-260E

Model Name Using Similar Mechanism HCD-J300

Tape Transport Mechanism Type Mech deck

AEP Model

UK Model

E Model

Australian Model

Amplifier section

European model: DIN power output (Rated):10 +10 watts

(6 ohms at 1 kHz,DIN)

Continuous RMS power output (Reference):

15 +15 watts (6 ohms at 1 kHz,10% THD)

Music power output (Reference):

25 +25 watts Other models: DIN power output (Rated):10 +10 watts

(6 ohms at 1 kHz,DIN) Continuous RMS power output (Reference):

15 +15 watts

(6 ohms at 1 kHz,10% THD) Inputs ANALOG IN (phono jacks):

voltage 250 mV,

impedance 47 kilohms

SPECIFICATIONS

DIGITAL OPTICAL IN (Supported sampling frequencies:32 kHz,44.1 kHz and 48 kHz) Outputs PHONES (stereo minijack):

accepts headphones of 16 ohms or more.

SPEAKER: accepts impedance of 6 to

16 ohms.

CD player section

System Compact disc and digital

audio system

Laser Semiconductor laser

(λ =780 nm) Emission duration: continuous

Frequency response 2 Hz – 20 kHz (±0.5 dB)

— Continued on next page —

MICRO HI-FI COMPONENT SYSTEM

9-873-570-04

2005B02-1

Sony Corporation

Personal Audio Group

Published by Sony Engineering Corporation

HCD-M10

MD deck section

System MiniDisc digital audio

Laser Semiconductor laser

Sampling frequency 44.1 kHz Frequency response 5 Hz – 20 kHz (±0.5 dB)

Tape deck section

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

Tuner section

FM stereo,FM/AM superheterodyne tuner FM tuner section Tuning range 87.5 – 108.0 MHz

Aerial FM lead aerial Aerial terminals 75 ohms unbalanced Intermediate frequency 10.7 MHz AM tuner section Tuning range European model: 531 – 1,602 kHz

Other models: 531 – 1,602 kHz

Aerial AM loop aerial

Intermediate frequency 450 kHz

system (λ =780 nm)

Emission duration: continuous

using Sony TYPE I cassettes

(50 kHz step)

(with the interval set at 9 kHz)

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

External aerial terminals

General

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

Power consumption European model: 55 watts

Other models: 55 watts Dimensions (w/h/d)incl.projecting parts and controls

Mass Approx.4.9 kg

Design and specifications are subject to change without notice.

50/60 Hz

0.5 watts (at the Power Saving mode)

Approx.159 x 216.5 x 330 mm

HCD-M10

C14/Toc Error

The MD deck cannot read the disc information properly.

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

the All Erase Function (see page 36).

C41/Cannot Copy

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

The Serial Copy Management System prevents making a digital copy (see page 57).

Messages

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

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 all tracks on the MD have been erased.

Cannot Edit

• A pre-mastered MD is in the deck.

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

Cannot REC

• A pre-mastered MD is in the deck.

• The function is switched to MD.

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.

continued

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 20).

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.

Remove the disc and turn off the system once, then turn it on again.

C13/REC Error

Recording could not be performed properly.

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.

Replace the MD and start recording over from the beginning.

C13/Read Error

The MD deck cannot read the disc information properly.

Remove the MD once, then insert it again.

HCD-M10

Self-diagnosis display (continued)

Complete!

The editing operation of MDs is completed.

Disc Full!

There is no time remaining on the MD.

Eject

The MD deck is ejecting the MD.

Group Full!

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

Impossible

• You tried to make an impossible editing operation.

• You cannot combine or erase the tracks due to the system limitations of MDs.

• You cannot specify the division point at the beginning or end of a track.

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. Place the system in a stable place to minimize shock and vibration. Do not use damaged or dirty discs.

Step Full!

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

Push STOP!

You pressed PLAY MODE/DIRECTION (or PLAY MODE on the remote) during play.

—Rehearsal—

The MD is playing the specified dividing point for confirmation during the A-B Erase Function and the Divide Function.

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.

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.

Text Protect

There is CD TEXT information which cannot be recorded on the MD.

TOC Reading

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

Initialize

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

Name Full

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

No Change

While attempting 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 playing pause.

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.

Tr Protect

You attempted to erase a protected track.

TABLE OF CONTENTS

HCD-M10

Cannot Edit

You tried to label a CD TEXT disc.

CD No Disc

There is no CD in the player.

Complete!

The editing operation of CD is completed.

Name Full

There are already 50 disc titles stored in the system.

OVER

You have reached the end of the CD while pressing M during play or pause.

Step Full!

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

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.

1. SERVICING NOTES ······················································ 6

2. GENERAL ········································································ 10

3. DISASSEMBLY ······························································ 12

4. TEST MODE··································································· 22

5. ELECTRICAL ADJUSTMENTS······························ 27

6. DIAGRAMS

6-1. CIRCUIT BOARDS LOCATION ····································· 41 6-2. BLOCK DIAGRAM – CD BOARD – ······························ 42

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

BLOCK DIAGRAM – PANEL BOARD – ······················· 45 6-3. PRINTED WIRING BOARD – CD BOARD – ················ 46 6-4. SCHEMATIC DIAGRAM – CD BOARD – ····················· 47 6-5. PRINTED WIRING BOARD – BD BOARD – ················ 48 6-6. SCHEMATIC DIAGRAM – BD BOARD (1/2) – ············ 49 6-7. SCHEMATIC DIAGRAM – BD BOARD (2/2) – ············ 50 6-8. SCHEMATIC DIAGRAM – MAIN OARD (1/2) – ··········51 6-9. SCHEMATIC DIAGRAM

– MAIN BOARD (2/2), LOADING BOARD – ················ 52

6-10.PRINTED WIRING BOARD

– MAIN BOARD,LOADING BOARD – ························· 53 6-11.PRINTED WIRING BOARD – MD DIGITAL BOARD –54 6-12.SCHEMATIC DIAGRAM – MD DIGITAL BOARD – ··· 55 6-13.PRINTED WIRING BOARD – TC BOARD – ················ 56 6-14 SCHEMATIC DIAGRAM – TC BOARD – ····················· 57 6-15.

PRINTED WIRING BOARDS – PANEL BOARD, BL (AMBER), BL (WHITE), JACK BOARD –

6-16 SCHEMATIC DIAGRAM

– PANEL BOARD, BL (AMBER), BL (WHITE), JACK BOARD –

6-17.PRINTED WIRING BOARD

– AMP BOARD, POWER BOARD – ······························ 60

6-18.SCHEMATIC DIAGRAM – AMP BOARD – ·················· 61 6-19.SCHEMATIC DIAGRAM – POWER BOARD – ············ 62 6-20.IC PIN FUNCTION DESCRIPTION································63

······························································ 58

······························································ 59

7. EXPLODED VIEWS ····················································· 72

8. ELECTRICAL PARTS LIST·····································80

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 .

HCD-M10

Ver 1.2 2002.05

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.

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.

Note for Speaker Terminals

The negative speaker outputs are not grounded bevause of the

balanced transformerless circuit.

(If connecting them to ground, or each other, the circuit is broken)

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

• DISC TRAY LOCK

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

Releasing Procedure :

1. Press two buttons of ENTER/START and OPEN/CLOSE (CD section) simultaneously.

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

Note : When “LOCKED” is displayed, the tray lock is not released

by turning power on/off with the POWER button.

DRAWING OUT THE TRAY DURING POWER OUT

• Perform after removing front panel.

tray

HCD-M10

gear(B)

cam block

First turn the whole of cam block in the arrow then put out tray by turning gear (B) in the arrow

direction with fingers,

direction.

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 33)

Auto check (6-4 : See page 34)

Temperature compensation offset check (6-1 : See page 33)

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

• 0.9 mW power Specified value : 0.80 to 0.96 mW

• 7.0 mW power Specified value : 6.8 to 7.2 mW 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)

• 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

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-M10

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 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) 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-7B4M

CLEANING THE OPTICAL PICK-UP (CD PLAYER)

CD mechanism deck

Move it in the

direction of the arrow

HCD-M10

Floating screw

Rotate it in the

direction of the arrow A.

Clean the lens block

by cotton swab

Note 1:

In cleaning the lens, do not apply an excessive force As the optical pick-up is vulnerable, application of excessive force could damage the lens holder.

Note 2:

In cleaning, do not use a cleaner other than exclusive cleaning liquid. (KK-91 or isopropyl alcohol)

Note 3:

Wipe the obujective lens spirally from center toward outside. (See Figure A)

BU-K4BD43

Optical pick-up

(FIGURE A)

HCD-M10

Main unit

SECTION 2

GENERAL

This section is extracted from instruction manual.

wa w;

0 qa

qs qd

CD disc tray qs (9) CD NX 3 (9, 11) Cover qj Display window 4 ENTER/START qd ( 22, 24, 46,

47) FM MODE qg (44) FUNCTION wa (9, 11, 13, 15, 17,

18, 21, 25, 26, 31–39, 41, 46, 48, 53)

GROUP indicator 2 (18, 21, 22,

32–34) MD insertion slot 5 MD NX 3 ( 15, 17, 18, 21, 25)

qh qg qf

PHONES jack qk PLAY MODE/DIRECTION qh

(9, 11, 13, 15, 17, 24, 30,

46–48) REC MODE qd (26) Remote sensor 6 REPEAT qg ( 10, 16) SYNCHRO MODE qd (22, 24,

46, 47) TAPE nN w; ( 46–48) TUNER BAND ql (43, 44) TUNING MODE qh (43, 44) TUNING +/– 8 (44) VOLUME +/– 0

BUTTON DESCRIPTIONS

?/1 (power) 1 (8, 20, 30, 43,

44, 50, 52)

Z PUSH OPEN/CLOSE 7 (46) m/M 8 (10, 16, 37, 39, 43,

44, 46)

l/L 8 (10, 11, 13,

16–18, 26, 31, 33–38, 40, 41,

43)

x 8 (10, 16, 21, 23–25, 29,

46–48)

Z MD 9 (15, 16, 20, 30) Z CD qa (9, 10) z MD qd (21, 25, 28, 40) z TAPE qd (48) X TAPE qf ( 46,

48)

Remote Control

HCD-M10

This section is extracted from instruction manual.

qh qg

qd qs

qa 0 9

1 2

3 4

6 7

wk wj wh

qj qk ql

w; wa

ws wd

BASS/TRE 8 (49) CD NX wd (9, 11) CLEAR wa (11, 13, 17, 31, 45) CLOCK/TIMER SELECT qg

(50, 52)

CLOCK/TIMER SET 2 (8, 50,

51) CURSOR T/t 5 (8, 13, 31) DISPLAY ws (8, 11, 12, 17, 19,

21, 45) DSG 9 (49) ENTER/YES 4 (8, 11, 14, 17,

25, 26, 30, 33–35, 37, 38, 40,

41, 43, 45, 50, 51) FM MODE qj (44) FUNCTION qs (9, 11, 13, 15, 17,

18, 21, 25, 26, 31–39, 41, 46,

48, 53) GROUP wl (18, 20, 22, 32–34)

GROUP SKIP qk (18, 22, 32, 34) MD z 0 (21, 25, 28) MD NX wj (15, 17, 18, 21, 25) MENU/NO qf (14, 26, 30,

32–35, 37–41, 43)

NAME EDIT/SELECT 3 (13,

30, 32, 45)

Number buttons w; (10, 13, 16,

31, 44)

PLAY MODE wg (9, 11, 13, 15,

17, 30) REPEAT wh (10, 16) SCROLL wk (14, 19, 32, 33) SLEEP qh (49) TAPE nN 7 (46–48) TUNER BAND 6 (43, 44) TUNING MODE ql (43, 44) VOL +/– wf

BUTTON DESCRIPTIONS

@/1 (power) 1 (8, 20, 30, 43,

44, 50, 52)

m/M 5 (10, 16, 37, 39, 43,

44, 46)

x qa (10, 16, 21, 23–25, 29,

46–48)

./> qd (8, 10, 11, 13,

16–18, 26, 31, 33–38, 40, 41, 43, 49–51)

(44)

–/+ qd

HCD-M10

• The equipment can be removed using the following procedure.

SET

Case (R), Case (L)

SECTION 3

DISASSEMBLY

Front panel section

PANEL board, BL board, JACK board TC board, mechanism deck MAIN board, tuner

CD mechanism deck

Base unit (BU-K4BD43)

CD board, CD optical

pick-up block

(KSM-213DHAP)

Cam (CDM55),

LOADING board

Top cover section

Holder section

Over write head

OP-Sub section

Chassis section

AMP board, POWER boardMD mechanism deckMD DIGITAL board

BD board

Loading motor assembly,

spindle motor assembly,

sled motor assembly

Back panel

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

)

Back panel

Four screws

(+BVTP3X10)

Screw

(+BVTP3X8)

Two screws (+BVTT3X6)

Screw (+BVTP3X10)

Shield plate (Micro Computer)

T wo screws

(+BVTP3X10)

Two screws (+BVTP3X10)

Screw (+BVTT3X6)

Front panel section

Chassis section

Wire (flat type) (CN500)

3-1. CASE (R), CASE (L), TOP COVER SECTION

Top cover section

Screw (+BVTP 3X10)

Case (L)

Two screws (case 3 TP2)

Ground terminal

Wire (flat type) (CN203)

HCD-M10

Screw (+BVTP3X10)

3-2. BACK PANEL, FRONT PANEL SECTION

Chassis section

Case (R)

Two screws (case 3 TP2)

Two screws (case 3 TP2

HCD-M10

)

3-3. PANEL BOARD, BL BOARD, JACK BOARD

Wire (flat type) (CN501)

Connector (CN502)

BL board

Lid (LCD)

T wo claws

Two screws (+BVTP2.6X8)

T wo solderings

Ground plate (HP)

PANEL board

Five screws (+BVTP2.6X8

3-4. TC BOARD, MECHANISM DECK

Mechanism deck

Ground lug

Screw (+BVTP3X8)

Connector

(mechanism deck 9 pins)

Front panel

Hook

Three screws

(+BVTP3X8)

JACK board

Top cover

on mechanism deck by sliding TC board in the arrow

Four screws

(+BVTP2.6X8)

Remove a crack of TC board from a hook

direction.

Screw (+BVTP3X8)

TC board

Wire (flat type) (CN1002)

Crack

Screw (+BVTP3X8)

Wire (flat type) (CN1001)

3-5. MAIN BOARD, TUNER

Wire (flat type) (15 core)

Tuner

Screw (+BVTP3X8)

Screw (+BVTT3X6)

Connector

(CN202)

Wire (flat type) (CN102)

Wire (flat type) (CN103)

Connector (CN101)

MAIN board

Wire (flat type) (CN903)

Wire (flat type) (CN105)

Connector of power cord (CN991)

Ground lug

Connector (CN992)

Connector (CN993)

POWER board

AMP board

Two screws (+BVTT3X6)

Two screws (+BVTP3X10)

Board to board connector (CN900-CN901)

Screw (+BVTT3X6)

HCD-M10

3-6. AMP BOARD, POWER BOARD

HCD-M10

)

3-7. MD MECHANISM DECK

Four step screws (+BVTTWH M3)

MD mechanism deck

Screw (+BVTT3X6)

Screw (+BTN1.7X3)

Ground lug

Screw (+BVTT3X6)

Ground lug

Shield (MDM)

Wire (flat type) (CN703)

Wire (flat type) (CN702)

3-8. MD DIGITAL BOARD

Screws (+BVTT3X6)

Wire (flat type) (CN703)

Wire (flat type) (CN702)

Bracket (MDM)

MD DIGITAL board

Two screws (+BVTT3X6

Two screws (+BVTT3X6)

3-9. CD MECHANISM DECK

Two hooks

CD mechanism deck

Screw (+BVTT3X6)

HCD-M10

3-10. HOLDER SECTION

Tension spring (holder)

Holder section

Hoo

HCD-M10

3-11. BD BOARD

Remove two solderings

(spindle motor)

Remove two solderings

(sled motor)

Flexible board (CN101)

Two screws (+BP TRI 2X6 CZN)

3-12. OVER WRITE HEAD (HR901)

BD board

Connector (CN104)

Remove two solderings (loading motor)

M702

M701

M703

S102

Remove three solderings

(switch)

Over write head

(HR901)

Screw (P1.7X6)

3-13. OP SUB SECTION

)

Screw (+BP TRI 2X6 CZN)

Main shaft

Flexible board

OP sub section

Screw (+BP TRI 2X6 CZN

Base (BU-A)

HCD-M10

Base (BU-D)

3-14. LOADING MOTOR ASSEMBLY, SPINDLE MOTOR ASSEMBLY, SLED MOTOR ASSEMBLY

Lever (head)

Two screws (+PWH1.7X3.5)

Torsion spring (CLV)

Belt (loading)

Loading motor assembly (M103)

Spindle motor assembly (M101)

Three tapping screws (M1.7)

Sled motor assembly (M102)

HCD-M10

3-15. CAM (CDM55), LOADING BOARD

Gear (B)

Spacer (55)

Roller

Cam (CDM55)

Belt (CDM55)

Pulley (LDG)

Gear (A)

Pull out the tray.

Push the claw in the

direction of the arrow

Pull out the tray in the direction

Two screws (+BTP2.6X6)

LOADING board

Release the lock

of the arrow While pushing this claw in the direction of the arrow B, release the lock.

3-16. BASE UNIT (BU-K4BD43)

Floating screw (+PTPWHM2.6)

Chassis (F)

Remove the base unit (BU-K4BD43)

in the direction of the arrow

3-17. CD BOARD, CD OPTICAL PICK-UP (KSM-213DHAP)

Optical pick-up (KSM-213DHAP)

Two insulators

Two compression springs

CD board

Holder (213D)

Two floating screws

(+PTPWHM2.6)

Two floating screws (+PTPWHM2.6)

Wire (flat type) (CN102)

Remove the four solderings from the bottom.

Screw (+BTP2.6X6)

HCD-M10

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-SM100E/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.

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

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

3. The memory is reset, the power turns off and the DEMO program starts.

2. Panel Test Mode

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

Procedure:

1. Press three bottons x , ENTER/START and FUNCTION simultaneously.

2. LEDs and LCD are all turned on.

2-1. Version check

1. When entering the software version display mode, press REPEAT butto .The model name (“M100”) and destination are displayed.

2. Each time 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 REC MODE button is pressed while the version numbers are being displayed, year, month and day of the software creation appear. When REC MODE button is pressed again, the display returns to the software version display. When 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 sof tware versions are displayed in the same order of version display.

2-2. Key check

1. Press PLAYMODE button, and the key check mode is activated. 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”

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

3. Common Test Mode

Procedure:

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

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

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

3-1. Amp Test Mode

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

BASS/TRE MAX, VOL MAX

BASS/TRE MIN, VOL MAX

BASS/TRE FLAT, VOL MAX

2. When VOLUME + button or VOLUME + “R” button is pressed, VOLUME goes MAX.

3. When VOLUME – button or VOLUME – “R” button is pressed, VOLUME goes MIN.

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

3-2. Tape Test

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

2. Insert a recordable cassette tape.

3. Play back the recorded MD.

4. Press z TAPE button.

5. Select the recording direction with TAPE nN button.

6. Press X TAPE button to start recording.

7. When m “R” or M “R” button 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 ?/1 button and disconnect the power cord.

HCD-M10

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

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

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

3. Press three buttons x , ENTER/START and CD u 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 ?/1 button to turn the power on.

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

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

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

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 1MODE) (C35)

• 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 three buttons of x , REC MODE , and FUNCTION 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 button twice and ?/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 REC MODE buttons. 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 REC MODE button Selects the sub menu

HCD-M10

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 nonvolatile 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 “Section 5 Electrical Adjustments”.

• 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 acciden-

tally, press the MENU/NO “R” button to release the mode immediately.

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 =

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

AD = )”.

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 =

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

AD = )”.

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

HCD-M10

5-2. Operating the Continuous Recording Mode (Use only when performing self-recording/playback 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 1MID”. (4) When access completes, the display changes to “CREC 1( )” and “ MD ” 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.

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

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

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

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

)” and “ MD ” lights up.

3. Ending the continuous recording mode (1) Press the MENU/NO “R” button. The display changes to “CREC 1MODE” (C35) and “ MD ” 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

MD N X

x M m

PLAY MODE/DIRECTION REC MODE MD Z REPEAT CLEAR“R” z MD

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

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 pits or grooves each time the button is pressed Ejects the disc Releases the test mode Clears the setting of pits and groove, and judges pits and groove again. When it is pressed while servo is turning on, the recording starts from present position.

Contents

HCD-M10

7. 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 ENTER/YES “R” button. If “LDPWR In this case, perform the laser power check and Iop Compare (C27), and then repeat from step1.

2. 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.

3. If a disc is loaded at step 2, the check will start automatically.

4. When “XX CHECK” is displayed, the item corresponding to XX will be performed. When “06 CHECK” completes, the disc loaded at step 2 will be ejected. “DISC IN” will be displayed. Load the check disc (TDYS-1).

5. When the disc is loaded in step 4, the check will automatically be resumed from “07 CHECK”.

6. After completing to “12 CHECK”, 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.

” is displayed, it means that the laser power check has not been performed.

test tape P-4-A100 (10kHz, –10dB)

oscilloscope

set

Waveform of oscilloscope

in phase 45

135

180

good

wrong

GND

R-ch

J301 PHONES Output Terminal

Ω

SECTION 5

ELECTRICAL ADJUSTMENTS

HCD-M10

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 PHONES Output Level (32Ω

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 Used for

10 kHz, –10 dB

3 kHz, 0 dB

315 Hz, 0 dB

J301 PHONES Output Terminal

Azimuth Adjustment

Tape Speed Adjustment

Level Adjustment

level meter

3. Mode: Playback

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

Adjustment Location:

Adjustment point

set

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

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

(Top view)

Tape Speed Check

Procedure:

1. MODE : Playback.

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

J301 PHONES Output Terminal

set

frequency counter

Ω

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.

Sample Value of Wow and flutter

W.RMS (JIS) less than 0.3% (test tape: WS-48B)

HCD-M10

CD BOARD

Oscilloscope

TP(TE)

TP(DVC 1.65V)

)

Record Level Check

Procedure:

1. Press FUNCTION button to select ANALOG IN.

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

3. Mode: Record

PJ301 ANALOG IN

AF OSC

1) 315 Hz

2) 60 Hz

3) 5 kHz

4) 10 kHz 600

attenuator

109 mV (–17 dB)

Ω

blank tap CS-123

set

4. Mode: Playback

recorded position

set

J301 PHONES

Ω

level meter

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).

2. Turn the power on.

3. Load a disc (YEDS-18) and playback.

4. Confirm that oscilloscope waveform is clear and check 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.

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

5. The playback output level should be –2 ±4 dBs (60 Hz), –1 ±4 dBs (8 kHz) and –3 ±4 dBs (10 kHz) compared with 315Hz

playback level.

level : 1.1 ± 0.3Vp-p

E-F Balance (1 Track jump) Check

Procedure:

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

2. Turn the power 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 voltage) on the oscilloscope waveform.

Center of waveform

B=1.3 ±0.6Vp-p

Specification level: x 100=less than ±22%

1.3±0.6Vp-p

Symmetry

A (DC voltage

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