Adjustment - Pioneer PDR-L77 Service Manual

6. ADJUSTMENT

6.1 DISCS TO BE USED
1. When adjusting the servo system adjustment
CD : Test disc for adjustment (STD-903 or equivalent)
6.2 JIGS AND 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
(4) Remote control supplied with PDR-L77 (AXD7242)
[(5)LD service remote control (GGF1067)]
6.3 TEST MODE
6.3.1 Test Mode
For adjustment, set the unit to Test mode. To enter Test mode, turn
on the unit with the Test Mode Short-Circuit pattern on the CDR
Assy. In Test mode, the display (FL) on the unit lights as follows.
0 00 00´00´´
If not, turn the power off and repeat the same steps again.
CDR ASSY
SIDE B
Fig. 1 Enter the Test mode
6.3.2 Operations in Test Mode
Please use the remote control provited with the PDR-L77(AXD7242)
or the LD service remote control(GGF1067).
In Test mode, the following adjustment functions are assigned to
the buttons, as explained below.
7 During adjustment of LD power
("DIGITAL" segment does not light this time)
: Switching CD/CD-R/CD-RW
(STOP/OPEN CLOSE button)
INPUT SELECTOR button
7 During adjustment of servo system
("DIGITAL" segment lights this time)
: Adjustment value decision
DIGITAL SYNCHRO button
(STILL STEP e button)
: Adjustment value decision
(STOP/OPEN CLOSE button)
: Tracking servo close
Short-circuit
INPUT SELECTOR button
COMPACT DISC RECORDER
REMOTE CONTROL UNIT
CU–PD113
Î
ERASE button
(TV/LDP button)
@ STANDBY/ON
•
FADER FINALIZE
DIGITAL AUTO/ TRACK NO.
ERASE
SYNCHRO MANUAL
& * #
STOP button
! ⁄ $
: LD off
INPUT SKIP ID
SELECTOR SKIP PLAY SET
(DIG/ANA button)
1 2 3
: Test mode switch
5 6 7
9 10/0 >10
PROGRAM CHECK CLEAR RANDOM
Fig.2 During adjustment of LD power
FINALIZE button
(REP. A button)
: Focus in
COMPACT DISC RECORDER
ERASE button
REMOTE CONTROL UNIT
CU–PD113
(TV/LDP button) Î
@ STANDBY/ON
•
FADER FINALIZE
DIGITAL AUTO/ TRACK NO.
ERASE
SYNCHRO MANUAL
& * #
STOP button
! ⁄ $
: Stop
INPUT SKIP ID
SELECTOR SKIP PLAY SET
PAUSE button
(PAUSE button)
1 2 3
5 6 7
(DIG/ANA button)
9 10/0 >10
REPEAT
: Test mode switch
PROGRAM CHECK CLEAR RANDOM
1, ¡ button
(4, ¢ button)
: Sled move
Fig.3 During adjustment of servo system
PDR-L77
REC MUTE button
(SIDE B button)
: LD on 2
‡
REC
RECORD button
(SIDE A button)
WRITE
: LD on 1
TIME
1, ¡ button
›
(4, ¢ button)
: Sled move
CLEAR
4
8
REPEAT
AXD7242
(The button shown in
corresponds in GGF1067.)
REC MUTE button
(SIDE B button)
: Adjustment
RECORD button
(SIDE A button)
: Adjustment
‡
REC
AUTO/MANUAL,
WRITE
TRACK No. WRITE button
(CX button)
TIME
: Servo adjustment mode switch
›
PLAY button
(PLAY button)
CLEAR
: Spindle kick
4
8
CLEAR button
(X3 3 button)
: Adjustment value initialization
BET button
(TV/LDP button)
: Adjustment value decision
AXD7242
(The button shown in
corresponds in GGF1067.)
51