Sony HMC-MD777 User manual

SERVICE MANUAL
CD PLAYER/MINI DISC DECK
E Model
SPECIFICATIONS
HMC-MD777
HMC-MD777 is the CD player and
MD Deck section in DHC-MD777.
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM53-K1BD33
Base Unit Name BU-K1BD33
Optical Pick-up Name KSM-213BFN
Model Name Using Similar Mechanism HCD-MD515
MD Mechanism Type MDM-C1F
Base Unit Name MBU-C1F
Optical Pick-up Name KMS-260B
CD
Section
MD
Section
U.S. and foreign patents licensed form Dolby Laboratories
Licensing Corporation.
Ver. 1.2 2006.09
9-922-985-13
2006I05-1
© 2006.09
Sony Corporation
Home Audio Division
Published by SonyTechno Create Corporation

– 2 –
SELF-DIAGNOSIS FUNCTION
MD SECTION
The self-diagnosis function consists of error codes for customers which are displayed automatically when errors occur, and error codes
which show the error history in the test mode during servicing. For details on how to view error codes for the customer, refer to the
following box in the instruction manual. For details on how to check error codes during servicing, refer to the following “Procedure for
using the Self-Diagnosis Function (Error History Display Mode)”.
PROCEDURE FOR USING THE SELF-DIAGNOSIS FUNCTION (ERROR HISTORY DISPLAY MODE)
Note: Perform the self-diagnosis function in the “error history display mode” in the test mode. The following describes the least required procedure. Be
careful not to enter other modes by mistake. If you set other modes accidentally, press the [MENU/NO] button to exit the mode.
1. While pressing the both [ENTER/YES] and πbuttons, turn the power ON.
(“TEMP CHECK” will be displayed)
2. Press the [MENU/NO] button to display “[CHECK]”.
3. Turn the ≠↔±dial and when “[Service]” is displayed, press the [ENTER/YES] button.
4. Turn the ≠↔±dial to display “ERR DP MODE” (C17).
5. Press the [ENTER/YES] button to sets the error history mode and displays “total rec”.
6. Select the contents to be displayed or executed using the ≠↔±dial.
7. Press the [MDWALKMANSYNC] button to display or execute the contents selected.
8. Press the [MDWALKMANSYNC] button again and returns to step 5.
9. When press the [MENU/NO] button to displays “ERROR DP MODE”, exits the error history mode.
10. To exit the test mode, press the [REPEAT] button. The disc is ejected when loaded, and set will be normal mode.

– 3 –
Items of Error History Mode Items and Contents
Display Details of History
0πE00 No error
0πE01 Disc error. PTOC cannot be read
(DISC ejected)
0πE02 Disc error. UTOC error
(DISC not ejected)
0πE03 Loading error
0πE04 Address cannot be read (Servo has deviated)
Table of Error Codes
Error Code Error Code Details of Error
total rec Displays the recording time.
Displayed as “rππππππh”.
The displayed time is the total time the laser is set to the high power state.
This is about 1/4 of the actual recording time.
The time is displayed in decimal digits from 0h to 65535h.
total play Displays the play time.
Displayed as “pππππππh”. The time displayed is the total actual play time. Pauses are not counted.
The time is displayed in decimal digits from 0h to 65535h.
retry err Displays the total number of retries during recording and number of retry errors during play.
Displayed as “rππ pππ”.
“r” indicates the retries during recording while “p” indicates the retry errors during play.
The number of retries and retry errors are displayed in hexadecimal digits from 00 to FF.
total err Displays the total number of errors.
Displayed as “total ππ”.
The number of errors is displayed in hexadecimal digits from 00 to FF.
err history Displays the 10 latest errors.
Displayed as “0πE@@”.
πindicates the history number. The smaller the number, the more recent is the error. (00 is the latest).
@@ indicates the error code.
Refer to the following table for the details.The error history can be switched by turning the ≠˜±dial.
er refresh (*1) Mode which erases the “retry err”, “total err”, and “err history” histories
When returning the unit to the customer after completing repairs, perform this to erase the past error history.
Afterpressingthe [MDWALKMANSYNC] buttonand “er refresh?”isdisplayed, press the [ENTER/YES] button
to erase the history.
“Complete!” will be displayed momentarily.
Be sure to check the following when this mode has been executed.
• The data has been erased.
• The mechanism operates normally when recording and play are performed.
tm refresh (*1) Mode which erases the “total rec” and “total play” histories.
These histories serve as approximate indications of when to replace the optical pickup.
If the optical pickup has been replaced, perform this operation and erase the history.
Afterpressingthe [MDWALKMANSYNC] button and “tm refresh?” is displayed, press the [ENTER/YES] button
to erase the history.
“Complete!” will be displayed momentarily.
Be sure to check the following when this mode has been executed.
• The data has been erased.
• The mechanism operates normally when recording and play are performed.
0πE05 FOK has deviated
0πE06 Cannot focus (Servo has deviated)
0πE07 Recording retry
0πE08 Recording retry error
0πE09 Playback retry error
(Access error)
0πE0A Playback retry error
Details of Error
(*1) If “err refresh” or “tm refresh” is performed, the error history data are all erased. Only when “OP Replacement” was executed,
perform this operation to clear the error history data, otherwise, never perform this operation.

– 4 –
CD SECTION
OPERATING THE DISPLAYED HISTORIES
1. Press the [PLAYMODE] and [REPEAT] button simulta-
neously, and the count of mechanical error and “NO DISC”
that optical system judged are displyed.
(*1) Mechanical error code
Emc=
Count of mechanical error Count of “NO DISC”
** Edc= **
2. Under this condition press the buttons in Table 1, and the re-
spective operations are executed as listed below.
Table 1.
Button Function
CD 1 Mechanical error cord from latest one to last ten are dis-
played each time this button is pressed. (*1)
CD 2 The reasons of “NO DISC” from latest one to last ten are
displayed each time this button is pressed. (*2)
§(CD1) Reset the count of mechanical error.
§(CD2) Reset the count of “NO DISC”.
E**M** ** ** ** **
(a) (b) (c) (d) (e) (f)
E
**
D
** ** **
(
a
) (
b
) (
c
) (
d
)
(*2) NO DISC error code
(a) The number of Mechanical error.
Latest one “00” to last ten “09”
(Turn the ≠↔±dial and change the error No.)
(b) “FF” : Mechanical error, when mechanical initialize to
completion.
(c) “1*” : Mechanical error in the midst of sub tray loading
“2*” from the stocker.
(d) “**” : Don’t care. (not used in servicing)
(e) “2*” : Mechanical error in the midst of the stocker up/
down.
(f) “2*” : Mechanical error of the clamper or in the midst of
changing the mode.



(a) The number of NO DISC error.
Latest one “00” to last ten “09”
(Turn the ≠↔±dial and change the error No.)
(b) “01”: Focus error
“02”: GFS error
“03”: Set up error
(c) “00”: NO DISC error (Did not chucking retry)
“02”: NO DISC error (Chucking retry to completion)
(d) The status, when judged NO DISC error.
“1*” : Stop
“2*” : Set up
“3*” : TOC read
“4*” : Access
“5*” : Play
“6*” : Pause
“7*” : Manual search (Play)
“8*” : Manual search (Pause)

– 5 –
TABLE OF CONTENTS
SELF-DIAGNOSIS FUNCTION.................................... 2
1. SERVICING NOTES ............................................... 6
2. GENERAL ................................................................... 13
3. DISASSEMBLY ......................................................... 15
4. TEST MODE.............................................................. 27
5. ELECTRICAL ADJUSTMENTS......................... 32
6. DIAGRAMS
6-1. Block Diagram – CD SERVO Section – ....................... 41
6-2. Block Diagram – MD SERVO Section (1/2) – ............. 43
6-3. Block Diagram – MD SERVO Section (2/2) – ............. 45
6-4. Block Diagram
– DISPLAY/POWER SUPPLY Section – ...................... 47
6-5. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 50
6-6. Printed Wiring Board – BD (CD) Section –.................. 51
6-7. Schematic Diagram – BD (CD) Section – .................... 53
6-8. Printed Wiring Boards
– CD MOTOR/SENSOR Section – ................................ 55
6-9. Schematic Diagram
– CD MOTOR/SENSOR Section – ................................ 57
6-10. Schematic Diagram – BD (MD) Section (1/2) –........... 59
6-11. Schematic Diagram – BD (MD) Section (2/2) –........... 61
6-12. Printed Wiring Board – BD (MD) Section –................. 63
6-13. Printed Wiring Boards
– MD MOTOR/SENSOR Section – ............................... 67
6-14. Schematic Diagram
– MD MOTOR/SENSOR Section – ............................... 69
6-15. Printed Wiring Board
– MICROCOMPUTER Section –................................... 71
6-16. Schematic Diagram
– MICROCOMPUTER Section –................................... 73
6-17. Printed Wiring Boards – RELAY Section – .................. 75
6-18. Schematic Diagram – RELAY Section – ...................... 77
6-19. Printed Wiring Board – MAIN Section – ...................... 79
6-20. Schematic Diagram – MAIN Section –......................... 81
6-21. Printed Wiring Boards – CD JOG/SW Section – .......... 83
6-22. Schematic Diagram – CD JOG/SW Section – .............. 85
6-23. Printed Wiring Board – CD DISPLAY Section – ......... 87
6-24. Schematic Diagram – CD DISPLAY Section – ............ 89
6-25. Printed Wiring Boards – MD JOG/SW Section – ......... 91
6-26. Schematic Diagram – MD JOG/SW Section – ............. 93
6-27. Printed Wiring Board – MD DISPLAY Section – ........ 95
6-28. Schematic Diagram – MD DISPLAY Section – ........... 97
6-29. IC Pin Function Description ......................................... 105
7. EXPLODED VIEWS .............................................. 116
8. ELECTRICAL PARTS LIST ............................. 125

– 6 –
SECTION 1
SERVICING NOTES
The laser diode in the optical pick-up block may suffer electro-
static 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
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveforms is output three times.
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 dur-
ing 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.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
Note:
Be sure to connect all wires (including FFC) in the MD
section before applying power or ICs may be damaged.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation 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.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY A !MARK ONTHE SCHEMATIC
DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE
CRITICAL TO SAFE OPERATION. REPLACE THESE COMPO-
NENTSWITH SONY PARTSWHOSE PART NUMBERS APPEAR
AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.

– 7 –
POWER SUPPLY DURING SERVICING
• As this set has not own power supply, it does not operate inde-
pendently. Therefore, during servicing, connect it to the Pre-
Main amplifier andTuner Unit (STR-MD777) of DHC-MD777.
If STR-MD777 are not available, use the Power Feed Jig (PFJ-
1) and Relay Connector Jig.
In this case, after turn on the POWER switch on the Power Feed
Jig, supply power with the following methods.
– CD Section –
Press the [REPEAT] and [1/ALL] buttons simultaneously.
(Power is turned off, when press the [CLEAR] and [1/ALL]
button simultaneously)
– MD Section –
Insert the disc in the any MD disc slot.
Note: Enter the test mode, when Insert the disc while pressing
the both [ENTER/YES] and πbuttons
(or [ENTER/YES] button only).
Connection:
Set
SYSTEM CONTROL termina
l
SYSTEM CONTROL terminal
Connector cable (15P)
Pre-Main AMP
and Tuner Unit
AC IN
Relay connector jig
(J-2501-166-A)
FH-E939,838,737
MHC-6600,5600,
3600,2600
CDP/TC
CN103 CN201 (15P)
SYSTEM CONTROL terminal
Set
Connector cable
CN102
FH-E828
FH-E929
MHC-2300
MHC-3500
MHC-5500
ST
Power feed jig
(PFJ-1)
17P
15P

– 8 –
MD SECTION
IOP DATA RECORDING AND DISPLAY WHEN PICK-UP AND NON-VOLATILE MEMORY (IC171 ON BD
(MD) BOARD) ARE REPLACED
The IOP value labeled on the 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 pick-up or non-volatile memory (IC171 on BD (MD) board), record the
IOP value on the pick-up according to the following procedure.
Record Precedure:
1. Enter the test mode. (See the “SECTION 5 TEST MODE” for detail of test mode)
2. Turn the ≠↔±dial to display “[Service]”, and press the [ENTER/YES] button.
3. Turn the ≠↔±dial to display “lop.Write” (C28), and press the [ENTER/YES] button.
4. The display becomes “Ref=@@@.@” (@ is an arbitrary number) and the numbers which can be changed will blink.
5. Input the IOP value written on the optical pick-up.
To select the number: Turn the ≠↔±dial.
To select the digit : Press the [MDWALKMANSYNC] button.
6. When the [ENTER/YES] button is pressed, the display becomes “Measu=@@@.@” (@ is an arbitrary number).
7. As the adjustment results are recorded for the step 6. value. Leave it as it is and press the [ENTER/YES] button.
8. “Complete!” will be displayed momentarily. The value will be recorded in the non-volatile memory and the display will become “Iop
Write”.
9. Press the [REPEAT] button to complete, and the set returns to normal mode.
Display Precedure:
1. Enter the test mode. (See the “SECTION 5 TEST MODE” for detail of test mode)
2. Turn the ≠↔±dial to display “[Service]”, and press the [ENTER/YES] button.
3. Turn the ≠↔±dial to display “Iop Read” (C27).
4. Press the [ENTER/YES] button. “@@.@/##.#” 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 the [MENU/NO] button to display “Iop Read”. Then press the [REPEAT] button, and the set returns to normal mode.
DISPLAY TEST MODE
This mode is test for fluorescent indicator tube, LED, buttons and jog dial.
This mode can not exit in the middle of the test, therefore finish the test when enter this mode.
Fluorescent Indicator Tube and Buttons Test Mode
1. While pressing the both [ENTER/YES] and [REC] buttons, turn the power ON.
2. After display “FL AllOn key”, lights up all segments on fluorescent indicator tube immediately.
3. Press every buttons of except [MDWALKMANSYNC] button on the MD section, then each segment goes off and remain the “L-
SYNC”.
4. Press the [MDWALKMANSYNC] button to display “PushYES”.
5. Press the [ENTER/YES] button and switch over to next check mode “5x7 Segments on Fluorescent Indicator Tube check”.
5x7 Segments on Fluorescent IndicatorTube Check Mode
1. After display “Seg Chk”, 5x7 segments part changes to display mesh pattern immediately.
2. Press the [ENTER/YES] button to display “Jog & LED”, and switch over to next check mode “JOG & LED Check”.
JOG & LED Check Mode
1. Each time the ≠↔±dial is turned, [MDWALKMANSYNC] LED lights on/off and [MD1-5] LED color changes into green/
amber.
2. Press the [ENTER/YES] button to display “Check End!”.
Exiting or Repeat the Display Test Mode
Press the [ENTER/YES] button: Exit to “Display Test Mode” and enter the other test mode.
Press the [MENU/NO] button : Repeat the “Display Test Mode”

– 9 –
Error Message Contents
NG TOCWRITE Disagree count of aging cycle and TOC.
NG CHACKING Time over (20 seconds) , when tried chucking
NG RELEAS Time over (20 seconds) , when tried eject.
MECHA ERR Mechanical error, after retry two times.
NG RECPAUSE Did not REC pause condition. (Head did not down, or etc.)
NG REC 5s Could not start recording.
NG BLANK Could not all erase.
AGING MODE
Record 5 seconds repeat to each five discs.
Note: Aging mode can not perform, if disconnect to the pre-main amplifier and tuner unit (STR-MD777) of DHC-MD777.
Setting the Aging Mode
1. Insert recordable discs in all MD disc slots.
2. Press the )and [RECMODE] buttons simultaneously for a moment, then πand [REC] buttons simultaneously for a few
seconds.
3. Enter the Aging Mode and start loading DISC1.
Exiting the Aging Mode
Press the [MENU/NO] button.
However exiting the aging mode, it continues performing action.
Display during the Aging Mode
Normal displays in recording, but displays as follow when change the disc.
D- :*
Note: •“ ” indicates the count of complete cycle.
•“D- ” indicates disc slot No. of active disc.
•“:*” indicates that loading is on.
Display of error happened
Displays “ D- :*” and error message alternately when error happened.
*1) Can not operation, when head is down (S6: off).
*2) Make it sure to perform these operations after pressing the MD1 to 5 button and elevator up/down to each MD slot position.
*3) Make it sure to perform these operations are after elevator downs to home position (bottom). Because, these operations no have
relation to with the elevator position.
LED Indication
LEDs of MD1 to 5 turn on (green) when press MD1 to 5 button and elevator up/down to each MD slot position. (Once turned on LED does
not turn off until exit the changer test mode)
When insert disc in the disc slot and disc1 to 5 switch (S1 to 5) turn on, change the color to amber.
Function Contents
)Elevator up. Stop when reset switch (S571) is turned on (*1)
CLEAR Elevator down. Stop when home switch (S570) is turned on (*1)
REC Loading in. Stop when loading in switch (S573) is turned on (*1, 2)
πLoading out. Stop when loading out switch (S572) is turned on (*1, 2)
NAME EDIT Head down. Stop when head down switch (S7) is turned on (*3)
1/ALL Head up. Stop when head up switch (S6) is turned on (*3)
MD1 to 5 Elevator up/down to each MD slot (slit) position (*1)
Clear the error
Press the 0or [CLEAR] button to clear the error, and restart the aging mode.
CHANGERTEST MODE
Setting ChangerTest Mode
1. While pressing the both [ENTER/YES] and flbuttons, turn the power ON.
2. Display “CHANGER TEST!!” and enter the changer test mode.
Exiting the ChangerTest Mode
Press the [ENTER/YES] button to normal mode.
Operation for ChangerTest Mode
Refer to the following operations, and each button except MD1 to 5 is active while it is pressed.

– 10 –
CHECKS PRIORTO 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 “5 Electrical Adjustments”.
• 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
• If NG, displayed as “T=@@ (##) [NG]”
(@@, ## are both arbitrary numbers)
Laser power check
(See page 33)
Traverse check
(See page 33)
Focus bias check
(See page 34)
C PLAY check
(See page 34)
Self-recording/playback
check
(REC/PLAY)
(See page 34)
Temperature
compensation
offset check
(See page 35)
Criteria for Determination
(Unsatisfactory if specified value is not satisfied)
• Clean the optical pick-up
• Adjust again
• Replace the optical pick-up
• Replace the optical pick-up
• Replace the optical pick-up
• Replace the optical pick-up
• 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 (MD) board)
• Check the signals around IC101, IC121, 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.

– 11 –
1 1kHz/0dB/L&R 22 1kHz/-90dB/L&R
2 20Hz/0dB/L&R 23 Infinity Zero w/o emphasis//L&R
3 40Hz/0dB/L&R 24 Infinity Zero with emphasis//L&R
4 100Hz/0dB/L&R 25 400Hz+7kHz(4:1)/0dB/L&R
5 200Hz/0dB/L&R 26 400Hz+7kHz(4:1)/-10dB/L&R
6 500Hz/0dB/L&R 27 19kHz+20kHz(1:1)/0dB/L&R
7 1kHz/0dB/L&R 28 19kHz+20kHz(1:1)/-10dB/L&R
8 5kHz/0dB/L&R 29 100Hz/0dB/L*
9 7kHz/0dB/L&R 30 1kHz/0dB/L*
10 10kHz/0dB/L&R 31 10kHz/0dB/L*
11 16kHz/0dB/L&R 32 20kHz/0dB/L*
12 18kHz/0dB/L&R 33 100Hz/0dB/R*
13 20kHz/0dB/L&R 34 1kHz/0dB/R*
14 1kHz/0dB/L&R 35 10kHz/0dB/R*
15 1kHz/-1dB/L&R 36 20kHz/0dB/R*
16 1kHz/-3dB/L&R 37 100Hz Squer Wave//L&R
17 1kHz/-6dB/L&R 38 1kHz Squer Wave//L&R
18 1kHz/-10dB/L&R 39 1kHz w/emphasis/-0.37dB/L&R
19 1kHz/-20dB/L&R 40 5kHz w/emphasis/-4.53dB/L&R
20 1kHz/-60dB/L&R 41 16kHz w/emphasis/-9.04dB/L&R
21 1kHz/-80dB/L&R
TRACK
No. Displayed Contents
Note: The contents of Track No. 1 to 41 are the same as those of the current TEST DISC-their titles are displayed.
TRACK
No. Displayed Contents
CD SECTION
CD-TEXTTEST DISC
This unit is able to display the test data (character information) written in the CD on its fluorescent indicator tube.
The CD-TEXT TEST DISC (TGCS-313: 4-989-366-01) is used for checking the display.
To check, perform the following procedure.
Checking Method:
1. Turn ON the power, set the disc to the disc tray with the “test disc” label facing up, and chuck the disc.
2. Press the ·button and play back the disc.
3. The following will be displayed on the fluorescent indicator tube.
Display: 1kHz/0 dB/ L&R
4. Turn the ≠↔±dial or press the ≠/±(CD) button on remote commander and select the track. The text data of each
track will be displayed.
For details of the displayed contents for each track, refer to “Table 1: CD-TEXT TEST DISCTEXT Data Contents” and “Table 2: CD-
TEXT TEST DISC Recorded Contents and Display”.
Restrictions in CD-TEXT Display
In this unit, some special characters will not be displayed properly. These will be displayed as a space or a character resembling it. For
details, refer to “Table 2: CD-TEXT DISC Recorded Contents and Display”.
Table 1: CD-TEXT TEST DISCTEXT Data Contents (TRACKS No. 1 to 41: Normal Characters)

– 12 –
Table 2: CD-TEXTTEST DISC Recorded Contents and Display
(In this unit, some special characters cannot be displayed. This is no a fault.)
TRACK
No. Recorded contents
´
′
*
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
to
99
! ” # $ %& ´ (21h to 27h)1kHz 0dB L&R
( ) + , – . / (28h to 2Fh)
01234567 (30h to 37h)
8 9 : ; < = > ? (38h to 3Fh)
@A B CD E F G (40h to 47h)
H I J K L MNO (48h to 4Fh)
P QR S T U VW (50h to 57h)
X Y Z [ ¥ ] ^ _ (58h to 5Fh)
a b c d e f g (60h to 67h)
h i j k l m n o (68h to 6Fh)
p q r s t u v w (70h to 77h)
xyz{I } (78h to 7Fh)
i¢£¤¥ § (A0h to A7h) 8859-1
≥Cª¬PR–(A8h to AFh)
•±23 µ¶ • (B0h to B7h)
†1º ¿ (B8h to BFh)
À Á Â Ã Ä ÅÆÇ (C0h to C7h)
ÈÉÊËÌÍÎÏ (C8h to CFh)
DÑÒÓÔÕÖ (D0h to D7h)
ØÙÚÛÜY ß (D8h to DFh)
àáâãäåæç (E0h to E7h)
èéêëìíîï (E8h to FFh)
∂ñòóôõö÷(F0h to F7h)
øùúûüy ÿ (F8h to FFh)
No.66
No.67
to
No.99
˙
~
′
1
41 23 4
Display
NAll the same
NAll the same
NAll the same
NAll the same
NAll the same
NAll the same
NAll the same
X Y Z [ ] ^ _ (58h to 5Fh)
NAll the same
NAll the same
NAll the same
NAll the same (A0h to A7h) 8859-1
(A8h to AFh)
(B0h to B7h)
(B8h to BFh)
AAAAAA C (C0h to C7h)
EEEEIIII (C8h to CFh)
D NOOOOO (D0h to D7h)
O U U U U Y (D8h to DFh)
aaaaaa c (E0h to E7h)
eeeeiiii (E8h to EFh)
dnooooo (F0h to F7h)
o u u u u y y (F8h to FFh)
NAll the same
NAll the same
to
NAll the same
/

– 13 –
SECTION 2
GENERAL
LOCATION OF CONTROLS
– Front Panel –
• CD PLAYER Section
• MD DECK Section
11/ALL button
2PLAY MODE button
3REPEAT button
4flbutton
5πbutton
60button
7)button
8NAME EDIT button
9MENU/NO button
!º ENTER/YES button
!¡ DISPLAY button
!™ CLEAR button
!£ ≠˜±dial
!¢ CD disc tray
!∞ CD1 button and indicator
!§ CD2 button and indicator
!¶ CD3 button and indicator
!• CD4 button and indicator
!ª CD5 button and indicator
@º DISC SKIP button
11/ALL button
2PLAY MODE button
3REPEAT button
4flbutton
5πbutton
60button
7)button
8NAME EDIT button
9MENU/NO button
!º ENTER/YES button
!¡ DISC SKIP button
!™ DISPLAY button
!£ CLEAR button
!¢ ≠˜±dial
!∞ OPEN button
!§ REC button
!¶ REC MODE button
!• MD WALKMAN SYNC button and indicator
!ª MD WALKMAN LINK jack
@º MD1 button and indicator
@¡ MD2 button and indicator
@™ MD3 button and indicator
@£ MD4 button and indicator
@¢ MD5 button and indicator
@∞ §button
3
2
1
4 567 8
9
!º
!¡
!™
!£
!¢ !∞ !§ !¶ !• !ª @º
3
2
1
4 5678
!£
@º @¡ @™ @£ @¢
9
!º
!¡
!™
!¢
!∞
@∞
!§
!¶
!•
!ª

– 14 –
– REAR PANEL –
1CD ANALOG OUT jack
2MD ANALOG IN/OUT jack
3OPTICAL IN, DIGITAL IN connector
4SYSTEM CONTROL terminal

– 15 –
• This set can be disassembled in the order shown below.
SECTION 3
DISASSEMBLY
Set
Case
(Page 16)
Front Panel Section
(Page 16)
CD Mechanism Deck Section (CDM53-K1BD33)
(Page 17)
RELAY Board
(Page 17) CD Base Unit (BU-K1BD33) (Page 19) Fitting Base (Guide/Magnet) Ass’y (Page 19)
Tray (Sub)
(Page 20)
Chassis (Mold B) Ass’y, Stocker,
Slider (Selection) (Page 20)
MD Mechanism Deck Section (MDM-C1F)
(Page 18)
MICROCOMPUTER
Board,
MAIN Board
(Page 18)
MD Base Unit (MBU-C1F)
(Page 25)
BD (MD) Board
(Page 25)
Over Write Head (HR901)
(Page 26)
Optical Pick-up (KMS-260B/J1N) (for MD)
(Page 26)
Escutcheon (’98 Front),
Chassis (Top) (Page 23)
Chassis (Elevator) (New) Ass’y
(Page 24)
Motor (Head) Ass’y (M4),
HEAD RELAY Board (Page 24)

– 16 –
FRONT PANEL SECTION
CASE
Note: Follow the disassembly procedure in the numerical order given.
3 case
2 three screws
(case 3TP2)
2 three screws
(case 3TP2)
1 three screws
(BVTT3
× 6)
5 connector
(CN1)
4 front panel section
3 two claws
3 two claws
2 three screws
(BV3
× 8)
1 wire (flat type) (13 core
)
(CN454)
1 wire (flat type) (21 core)
(CN691)

– 17 –
CD MECHANISM DECK SECTION (CDM53-K1BD33)
4 two screws
(BV3 × 8)
5 Remove the CD mechanism deck section (CDM53-K1BD33)
in the direction of the arrow.
3 four screws
(BV3 × 8)
6 wire (flat type) (19 core)
(CN300)
2 wire (flat type) (17 core)
(CN701)
1 connector
(CN713)
RELAY BOARD
1 wire (flat type) (23 core)
(CN451)
1 wire (flat type) (13 core)
(CN453)
2 screw
(BV3
× 8)
3 connector
(CN456)
4 Remove the RELAY board
in the direction of the arrow.

– 18 –
MD MECHANISM DECK SECTION (MDM-C1F)
1 four screws
(BV3 × 8)
3 connector
(CN106)
2 MD mechanism deck section
(MDM-C1F)
MICROCOMPUTER BOARD, MAIN BOARD
3 Remove the MICROCOMPUTER
board in the direction of the arrow.
7 Remove the MAIN
board in the direction
of the arrow.
5 screw
(BV3
× 8)
1 two connectors
(CN304, 305)
6 PWB holder
1 connector
(CN306)
5 screw
(BV3
× 8)
4 three screw
s
(BV3 × 8)
2 PWB holder
A
B

– 19 –
CD BASE UNIT (BU-K1BD33)
2 CD base unit
(BU-K1BD33)
1 two screws
(PTPWHM2.6)
1 two screws
(PTPWHM2.6)
FITTING BASE (GUIDE/MAGNET) ASS’Y
2 four screws
(BVTP2.6)
4 two screws
(BVTP2.6)
7 four screws
(BVTP2.6)
4 two screws
(BVTP2.6)
3 fitting base (guide) ass’y
8 fitting base (magnet) ass’y
1 two connectors
(CN709, 715)
5 bracket
(chassis)
6 connector
(CN710)

– 20 –
TRAY (SUB)
pulley (LD)
slider (selection)
pulley (mode)
stocker
tray (sub)
R
L
1
Rotate the pulley (LD) and move the slider (selection)
in the direction of the arrow
L .
2 Rotate the pulley (mode) in the direction of the arrow
and adjust the tray (sub) of object.
3 Rotate the pulley (LD) and move the slider (selection)
in the direction of the arrow
R .
4 Rotate the pulley (mode) in the direction of the arrow
and remove the tray (sub) of object.
CHASSIS (MOLD B) ASS’Y, STOCKER, SLIDER (SELECTION)
Note: Refer to page 21, 22 when install.
5 stocker
7 slider (selection)
8 washer
9 compression spring
3 gear (eject)
4 two step screws
1 three screws
(BVTP2.6)
6 two screws
(PTPWHM2.6)
4 two step screws
pulley (LD)
2 chassis (mold B) ass’y
Note: Rotate the pulley (LD) an
d
move the slider (selection
)
to left.