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CLD-D503, CLD-D570
1.6.2 ADJUSTMENT PRECAUTIONS
@ Equipment and jigs needed for adjustment
* CD test disc (STD—901 or STD—902)
+ Medium —sized Phillips screwdriver
- LD test disc (GGV1003)
* Two-—channel oscilloscope (with delay)
* Medium —sized blade screwdriver
+ AF oscillator
+ Small blade screwdriver
+ Frequency counter
: Hexagonal wrench (straight type, size: 3mm)
+ Digital voltmeter
* Resistor (LOKQ X 2, 47KQ
X 1)
+ TV monitor
* Large Phillips screwdriver
+ Low pass filter
®@ Preparation for adjustment
1. Remove the 7 screws @ that stabilize the bonnet and take off
the bonnet. (Fig. 1)
Bonnet
2. Remove the 2 tray stopper screws ® and press the OPEN/
CLOSE button to put the tray unit in the open position.
(Fig. 1)
3. While pushing the hook on the right rear of the disc tray ©
to the left, pull out the tray unit. (Fig. 1)
@ As shown in Fig. 2, fit MAIN assy into PCB holder on the
chassis and by standing it against the inside of the chassis, the
back side of the board (pattern side) can be. diagnosed.
PCB
Holder
Chassis
Fig. 2
1-24
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