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Note 1: This illustration sees the top panel block from base unit side.

1 four floating screws

3 two vibration proof rubbers

4 two vibration proof rubbers (green)

6 cover (D1)

7 base unit

2

5 four claws

2: Four claws might be fixed by bond. 

 

 

Please fix four claws by the bond when 

 

 

you replace the cover (D1). 

3 wire (flat type) (16 core) (optical pick-up)

1 Remove four solders.

2 Solder the short-land.

4 BD73 board block 

7 optical pick-up block

5 tapping screw (P2)

6 shaft (support)

Note 2: When assembling the optical pick-up block, 
 

remove the solder of short-land after 

 

connecting the wire (flat type) (16 core).

Note 1: When disconnecting the wire (fl at type) (16 core) of optical pick-up block, solder the short-land.

• Abbreviation
 AUS : 

Australian 

model

  CND  : Canadian model
  E2 

: 120V AC area in E model

  E51 

: Chilean and Peruvian models

  KR 

: Korean model

  MX 

: Mexican model

  SP 

: Singapore model

 TH  : 

Thai 

model

 TW  : 

Taiwan 

model

COLD  RESET
The cold reset clears all data including preset data stored in the 
memory to initial conditions. Execute this mode when returning 
the set to the customer.
Procedure:
1.  In the standby status, press the [

?/1

] button to turn the power 

on.

2.  Press three buttons of [FUNCTION], [   +] and [

?/1

] simul-

taneously.

3.  When “RESET” appears, the set enters standby status.

PANEL  TEST  MODE
Enter The Panel Test Mode
Procedure:
1.  In the standby status, press the [

?/1

] button to turn the power 

on.

2.  Press three buttons of [ENTER], [FUNCTION] and [

?/1

] si-

multaneously 

3.  When the panel test mode is activated, segments of the liquid 

crystal display are all turned on.

Version Check
Procedure:
1.  In the panel test mode (segments of the liquid crystal display 

are all turned on), press the [   +] button.

2.  On the liquid crystal display, date and version are displayed.
3.  Press the [   +] button, and the USB micom version is dis-

played.

4.  From this status, press the [   –] button, and the destination 

and model name are displayed.

5.  To release from this mode, press three button of [ENTER], 

[FUNCTION] and [

?/1

] simultaneously .

Key Test Mode (AEP, 120V AC area in E, Mexican, Chil-
ean and Peruvian models only)
Procedure:
1.  In the panel test mode (segments of the liquid crystal display 

are all turned on), press the [

u] button.

2.  The message “KEY0 0 0”displayed. Whenever any buttons are 

pressed the value is changed.

 

The message “VOL UP” is displayed when [VOLUME] knob 
is turned clockwise, and “VOL DOWN” is displayed when 
[VOLUME] knob is turned counterclockwise.

3.  To release from this mode, press three button of [ENTER], 

[FUNCTION] and [

?/1

] simultaneously.

TUNER  STEP  CHANGE
(Except AEP and UK models only)
The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1.  Press the [

?/1

] button to turn the power on.

2.  Press the [FUNCTION] button to select TUNER (AM) func-

tion.

3.  Press the [

?/1

] button again to turn the power off (standby).

4.  After pressing the [DISPLAY] button on the remote com-

mander, while pressing the [TUNE + 

M L] button, press 

the [

?/1

] button.

5.  It turns power on and display “9K STEP” or “10K STEP”, and 

thus the tuning interval is changed over.

CD/USB  POWER  MANAGE
This mode is for switch the CD/USB power supply on/off. Even if 
this state pulls out AC plug, it is held.
Procedure:
1.  Press the [

?/1

] button to turn the power on.

2.  Press the [FUNCTION] button to select CD function.
3.  Press the [

?/1

] button again to turn the power off (standby).

4.  After pressing the [DISPLAY] button on the remote com-

mander, while pressing the [

x

] button, press the [

?/1

] button.

5.  It turns power on and display “CD POWER”, then display 

“ON” or “OFF”.

CD  SERVICE  MODE
This mode can move the SLED of the optical pick-up, and also can 
turn the optical pick-up laser power on and off.
Procedure:
1.  Press the [

?/1

] button to turn the power on.

2.  Press the [FUNCTION] button to select CD function.
3.  Press three buttons of [DSGX], [TUNE + 

M L] and [

?/1

] 

simultaneously.

4.  It enters the CD service mode and displays “SERVICE”.
5.  To exit from this mode, press three buttons of [DSGX], 
[TUNE + 

M L] and [

?/1

] simultaneously.

Key Operation:
[TUNE + 

M L], [– TUNE l m]: 

 

Use these keys to move the SLED. 

 

When [TUNE + 

M L] is pressed in this mode, 

the SLED moves to outer circumference and the 
message “SLED OUT” is displayed. 

 When 

[– 

TUNE 

l m] is pressed in this mode, 

the SLED moves to inner circumference and the 
message “SLED IN” is displayed. 

[FUNCTION]: 
 

Use this key to turn the optical pick-up laser power 
on and off. When the laser power is turned on, the 
message “LD ON” is displayed. When the laser 
power is turned off, the message “LD OFF” is dis-
played. 

Note 1:  Do not enter the this mode while any other test mode is in prog-

ress.

Note 2:  Do not enter any other test mode while the this mode is in prog-

ress.

Procedure:
1.  Press the [

?/1

] button to turn the power on.

2.  Press the [FUNCTION] button to select CD function
3.  Press three buttons of [DSGX], [   –] and [

?/1

] simultane-

ously.

4.  It enters the CD factory mode and the message “FACTORY” is 

displayed. When the [DSGX] button is pressed four times, the 
following message (initial display) is displayed.

  – –X 1ON   

 

 

     S curve mode setting

 

 

     Tracking servo setting

 

 RF gain setting

Key Operation:
[DSGX]:
 

The display changes in the following order when-
ever the button is pressed.

[ENTER]:
 

RF gain setting changes whenever the button is 
pressed.

 

“– –”: No gain fi xation.

 

“AL”: Fix to the gain for AL disc.

 

“RW”: Fix to the gain for RW disc.

[   +]:
 

Tracking servo setting changes whenever the but-
ton is pressed.

 

“ON”: Tracking servo ON.

 

“OFF”: Tracking servo OFF.

[FUNCTION]:
 

S curve mode setting changes whenever the button 
is pressed.

 

“  ”: S curve mode OFF.

 

“S”: S curve mode ON.

5.  To release from this mode, press three buttons of [DSGX],         

[   –] and [

?/1

] simultaneously.

(Initial display)

FCSAG 

 ( : Focus AGC value)

TRKAG 

 ( : Track AGC value)

RF_AG 

 ( : RF AGC value)

Note:
1.  CD Block is basically constructed to operate without adjustment.
2.  Use YEDS-18 disc (Part No. 3-702-101-01) unless otherwise indicat-

ed.

3.  Use an oscilloscope with more than 10 M

 impedance.

4.  Clean the object lens by an applicator with neutral detergent when the 

signal level is low than specifi ed value with the following checks.

5.  Check the focus bias check when optical pick-up block is replaced.

Procedure:
1.  Connect the oscilloscope to CL102 (RFOUT) and CL117 

(VREF) on the BD73/BD73U board.

2. Press the [

?/1

] button to turn the power on, and press the 

[FUNCTION] button to select CD function.

3.  Set disc (YEDS-18) and press the [

u] button to playback.

4. Confi rm that oscilloscope waveform is as shown in the fi gure 

below (eye pattern).

 

A good eye pattern means that the diamond shape (

) in the 

center of the waveform can be clearly distinguished.