Discs To Be Used; Measuring Instruments; Test Mode; Operations In Test Mode - Pioneer pdr-w739 Service Manual

PDR-W739
¶ CD-R ADJUSTMENT

6.1 DISCS TO BE USED

1. When adjusting the servo system adjustment
CD : Test disc for adjustment (STD-903, STD-905 or equivalent)

6.2 MEASURING INSTRUMENTS

(1) Laser Power Meter
Following power meter manufactured by Advantest Corporation
or equivalent :
TQ8210 + TQ82017
TQ8215 + TQ82021
TQ8215 + TQ82010 + TQ82017
LE8010 (by LEADER)
(2) Oscilloscope
(3) CD Jitter Meter

6.3 TEST MODE

6.3.1 Test Mode
For adjustment, set the unit to Test mode. To enter Test mode,
(1) Power supply ON is done.
(2) The power supply is turned off with "STOP" key to 3-CD and
"STOP" key to CD-R pushed.
(3) Again, the power supply is turned on with two "STOP" keys
pushed.
It is displayed that the display part of this machine is "CD TEST 2"
when becoming a test mode (CD test mode).
When not becoming this display, the power supply is turned off and
the above-mentioned is repeated .
Next, this machine is switched to the CD-R test mode pushing
"PLAY MODE" key.
The display becomes "CDR-00000000".

6.3.2 Operations in Test Mode

In Test mode, the following adjustment functions are assigned to
the buttons, as explained below.
1 0
DISPLAY
OPEN/CLOSE
button
button
Switching ×1
CD TRAY
and ×2 MODE
Open/Close
COMPACT DISC RECORDER / MULTI-CD CHANGER
OPEN/CLOSE
0
1
3
- COMPACT DISC MULTI CHANGER
0
2
0
3
3-CD CONTROL
RANDOM PLAY MODE
4 1 ¡ ¢
DISP
POWER
PHONES LEVEL
6 7
— OFF _ ON
MIN MAX
41, ¡¢ 3/8 (PLAY/PAUSE)
buttons button
CD Sled move CD
Spindle kick, Tracking close
Fig.1 3-CD TEST MODE
64
PLAY MODE
button
RANDOM button
Switching CD
CD LD emitting
and CD-R
Focus Servo Close
TEST MODE
CD SELECT
OPEN/CLOSE
1
2 COMPACT DISC DIGITAL RECORDER
3
REC MUTE
COPY START
CD=CD-R COPY MODE CHECK ERASE FINALIZE INPUT AUTO SPACE SYNCHRO
CD-R CONTROL ‡ REC LEVEL
¡ ¢
4 1
DISP
6 7
PUSH ON-OFF
7 (STOP) button
CD Stop
ANA : adjustment of LD power
OPT : adjustment of servo system
COMPACT DISC RECORDER / MULTI-CD CHANGER
OPEN/CLOSE
0
1
3
- COMPACT DISC MULTI CHANGER
0
2
0
3
3-CD CONTROL
RANDOM
¡ ¢
4 1
DISP
POWER
PHONES
6 7
— OFF _ ON
Switching CD, CD-R and CD-RW
Fig.2 During adjustment of LD power
FINALIZE button
CD-R LD emitting
Focus Servo Close
COMPACT DISC RECORDER / MULTI-CD CHANGER
OPEN/CLOSE
0
1
3
- COMPACT DISC MULTI CHANGER
0
2
0
3
3-CD CONTROL
RANDOM
4 1 ¡ ¢
DISP
POWER
PHONES
6 7
— OFF _ ON
41, ¡¢
buttons
CD-R Sled move
3/8 (PLAY/PAUSE) button
CD-R
Spindle kick, Tracking close
Fig.3 During adjustment of servo system
6.3.3 How to Playback a Disc in Test Mode
In test mode, since the servos operate independently, playing back a
disc requires that you operate the keys in the correct order to close
the servos.
Here is the key operation sequence for playing back a disc in test
mode.
Lights up the laser diode and closes the focus servo.
FINALIZE
0
'
REC/
¶
Starts the spindle motor and closes the spindle
PLAY/PAUSE
3/8
servo.
'
PLAY/PAUSE
Close the tracking servo.
3/8
'
Wait at least 2 – 3 seconds between each of these operations.
¶ (REC/REC MUTE)
INPUT buttons
buttons
CD-R LD emitting
CD SELECT
1
2 COMPACT DISC DIGITAL RECORDER
3
COPY START
CD=CD-R COPY MODE CHECK ERASE FINALIZE
PLAY MODE
LEVEL
MIN MAX
7 (STOP) button
ERASE button
LD not emitting
(Input selector: analog)
AUTO SPACE
SYNCHRO
button
button
CD-R Adjustment
CD-R
Mode switch
Average
CD SELECT
1
2 COMPACT DISC DIGITAL RECORDER
3
COPY START
CD=CD-R COPY MODE CHECK ERASE FINALIZE
PLAY MODE
LEVEL
MIN MAX
7 (STOP) button
CD-R Stop
Adjustment
- , + : Adjustment Value
Push : Register
(Input selector: optical)
OPEN/CLOSE
0
REC/
REC MUTE
¶
INPUT AUTO SPACE SYNCHRO
‡ REC LEVEL
CD-R CONTROL
4 1 ¡ ¢
DISP
6 7
PUSH ON-OFF
0
OPEN/CLOSE
button
CD-R TRAY
Open/Close
OPEN/CLOSE
0
REC/
REC MUTE
¶
INPUT AUTO SPACE SYNCHRO
‡ REC LEVEL
CD-R CONTROL
4 1 ¡ ¢
DISP
6 7
PUSH ON-OFF
REC LEVEL
- , + knob