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— 9 —

Same as the values shown in the left column.

100Hz    Square    Wave // L&R

1kHz    Square    Wave // L&R

1kHz    w/emphasis /– 0.37dB/L&R

5kHz    w/emphasis / – 4.53dB/L&R

16kHz    w/emphasis / – 9.04dB/L&R

Same as the values shown in the left column.

X Y Z [ \ ] ^ _ (58h to 5Fh)

Same as the values shown in the left column.

(A0h to A7h) 8859-1

(A8h to AFh)

(B0h to B7h)

(B8h to BFh)

A A A A A A    C    (C0h to C7h)

E E E E  I I I I    (C8h to CFh)

D N O O O O O    (D0h to D7h)

0 U U U U Y          (D8h to DFh)

a a a a a a    c    (E0h to E7h)

e e e e i i i i    (E8h to EFh)

d n o o o o o    (F0h to F7h)

o u u u u y    y    (F8h to FFh)

Same as the values shown in the left column.

TRACK

Recorded contents

Display

33

34

35

36

37

38

39

40

41

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

100Hz/0dB/R*

1kHz/0dB/R*

10kHz/0dB/R*

20kHz/0dB/R*

100H square wave //L&R

1Hz square wave //L&R

1kHz emphasis ON/–0.37dB/L&R

5kHz emphasis ON/–4.53dB/L&R

16kHz emphasis ON/–9.04dB/L&R

!

” # $ % &

’

(21h to 27h)

1kHz 0dB L&R

( )

*

+ ,

–

.

/

(28h to 2Fh)

0 1 2 3 4 5 6 7

(30h to 37h)

8 9 :

; < = > ?

(38h to 3Fh)

@A B C D E F G (40h to 47h)

H I J K L M N O (48h to 4Fh)

P Q R S T U V W (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)

x y z {

I

}

~

(78h to 7Fh)

i ¢ £ ¤ ¥

§

(A0h to A7h) 8859-1

C

ª

¬

P R

–

(A8h to AFh)

• ±

2

3

‘

µ

¶

•

(B0h to B7h)

†

1

º

3
4

1
2

1
4

¿

(B8h to BFh)

À Á Â Ã Ä Å Æ Ç (C0h to C7h)

È É Ê Ë Ì

Í

Î

Ï

(C8h to CFh)

D Ñ Ò Ó Ô Õ Ö

(D0h to D7h)

ؠ٠ڠ۠ܠY

ß

(D8h to DFh)

à á â ã ä å æ ç  (E0h to E7h)

è

é ê ë

ì

í

î

ï  (E8h to EFh)

∂

ñ ò ó ô õ ö

÷

  (F0h to F7h)

ø

ù ú û ü y

ÿ  (F8h to FFh)

No.66

No.67

to

No. 99









































































* Other channel is infinity zero.

— 10 —

The IOP value that is indicated on the optical pickup unit can be saved in the non-volatile memory.  By saving the IOP value saved in the non-
volatile memory, it is no more necessary to read the IOP value on the optical pickup unit.  It is recommended to save the IOP value saved in
the non-volatile memory when the optical pickup unit and/or non-volatile memory (BD (MD) board IC171) is replace as the followings.

1. Turn on the power and select the MD function.  Press the three buttons simultaneously, i.e., the   ENTER/YES  ,   NAME EDIT  , and

MD3   buttons to activate the test mode.

2. Turn the  MULTI JOG   dial to show the message “[service]” on display.  Press the   ENTER/YES   button.
3. Turn the   MULTI JOG   dial to show “Iop Write” (28) on display.  Press the   ENTER/YES   button.
4. “REF=@@@.@” (@ is an arbitrary number) appears, and the number that can be changed as described in the next step, flashes.
5. Input the IOP value that is indicated on the optical pickup, as follows.

Selection of numeral : Select a number by turning the   MULTI JOG   dial.
Selection of digit

: Select the desired digit by pressing the   MD WALKMAN SYNC   button.

6. Press the   ENTER/YES   button and the message “Measu=@@@.@” appears. (@ is an arbitrary number.)
7. Press the   ENTER/YES   button without changing the number because the result data of adjustment is saved as the value of step 6.
8. The message “Complete!!” appears for a moment.  This value is saved in the non-volatile memory, and the message “Iop Write” is

displayed.

9. After saving is complete, press the   REPEAT   button to return to the normal operating mode.

1. Turn on the power and select the MD function.  Press the three buttons simultaneously, i.e., the   ENTER/YES  ,   NAME EDIT  , and

MD3   buttons to activate the test mode.

2. Turn the   MULTI JOG   dial to show “[Service]” on display.  Press the   ENTER/YES   button.
3. Turn the   MULTI JOG   to show “Iop Read” (C27) on display.
4. “@@.@/##.#” appears, and the saved contents are displayed.

@@.@ : The Iop value that is indicated on the pickup
##.#

: The Iop value after adjustment is complete

5. To exit this mode, press the   MENU/NO   button to show “Iop Read” on display.  Press then the   REPEAT   button to return to the normal

operating mode.

— 11 —

Criterion of judgement
(If the value does not satisfy the following
specification value, it is judged as defective.)

Countermeasure when result of judgement
is defective

Laser power check

(page 44)

Traverse check

(page 45)

Focus bias check

(page 46)

CPLAY check

(page 46)

Self-record/playback check

(REC/PLAY)

(page 46)

TEMP check

(temperature compensation

offset adjustment)

(page 44)

•

0.9 mW power

Specification value: 0.84 to 0.92 mW

•

7.0 mW power

Specification value: 6.8 to 7.2 mW

•

Iop (when 7 mW)

The Iop value that is indicated on the

optical pickup unit ±10 mA

•

Traverse waveform

Specification value: Offset 10 % or less

•

Error rate check

Specification value: At all points of a, b, c

C1 error

220 or less

AD error

2 or less

•

Error rate check

Specification value:

a. When the test disc (MDW-74/AU-1) is

used

C1 error

80 or less

AD error

2 or less

b. When the check disc (TDYS-1) is used

C1 error

50 or less

•

Error rate check with CPLAY

Specification value:

C1 error

80 or less

AD error

2 or less

•

NG when “T=@@(##)[NG” is displayed

(@@ and ## are arbitrary numbers.)

•

Cleaning the optical pickup

•

Re-adjustment

•

Replacement of the optical pickup

•

Replacement of the optical pickup

•

Replacement of the optical pickup

•

Replacement of the optical pickup

•

Replacement of the optical pickup

When test result is all the time defective:

•

Replacement of the over-write head

•

Check that circuits in the peripheral of the

over-write head are not open

When test result is defective from time to

time:

•

Check if the over-write head is not deformed

•

Mechanical check on parts around the sledding
mechanism

•

Check that circuits in the peripheral of D101
(BD board) are not open

•

Check signals in the peripheral of IC101, 121,
CN102, 103 (BD board)

The criterion of judgement is presented only for the purpose of judgment whether specifications are satisfied or not.  This is not the
specification values of adjustments.
When any adjustments are attempted, use the specification values that are described in the respective adjustment procedures.

Cause of defect can be approximately located by performing the following checks before starting repair work.  For the detailed procedure,
refer to “SECTION 6  ELECTRICAL ADJUSTMENTS”.

— 12 —

1 TUNER/BAND button
2 DBFB button
3 MD6 button

4 CURSOR 0/) buttons
5 MD1 – MD5/

/

p buttons

6 SPECTRUM ANALYZER UPPER DISPLAY

button

7 SPECTRUM ANALYZER LOWER DISPLAY

button

8 REC button
9 REC MODE button
!º MD WALKMAN SYNC button
!¡ GROOVE button
!™ PLAY MODE TUNNING MODE button
!£ 1/ALL button
!¢ REPEAT STEREO/MONO button
!∞ VOLUME dial

!§ CLEAR button
!¶ ENTER/YES button
!• CD1 6 – CD5 6 buttons

!ª MENU/NO button
@º MULTI JOG dial
@¡ PRESET EQ button
@™ NAME EDIT/CHARACTER button
@£ FUNCTION button
@¢ REC IT button
@∞ HIT PARADE button
@§ SEAMLESS button
@¶ SELECT SYNC button
@• CD1 – CD5/

/

p buttons

@ª TIMER SELECT button
#º SET button
#¡ 1/u (power) button

1

2
3
4
5

6

7

8
9
!º
!¡

!™
!£
!¢
!∞
!§

!¶

!•

!ª

@º

@¡

@™

@£

@¢

@∞

@§

@¶

@•

@ª

#º

#¡