Miscellaneous Adjustment; Dc Power Regulator Adjustment; Spindle Pwm Ref 2H Adjustment; Decoder Clock Adjustment - Sony LDP-1500P Service Manual

4-1. MISCELLANEOUS ADJUSTMENT
4-1-1. DC Power Regulator Adjustment
Conditions
Specifications
• POWER on state
TP6/PS-113
+5.0 ±0.05 V de
4-1-2. Spindle PWM Ref 2H Adjustment
Conditions
Specificatlions
• POWER on state
0101-@/SV-79
31,250 ±10 Hz
4-1-3. Decoder Clock Adjustment
Conditions Specifications
•POWER on state TP1/SS-32
3.0 ±0.03 MHz
4-2. FOCUS SERVO ADJUSTMENT
Remove the blind lid on the rear panel, and connect the SERVO
CHECKER to CN 10/PR-80 board.
Rear Panel
0
0
@
@
4·:::::::::1)0
servo checker
connecting cable
4-2-1. Focus Bias Adjustment
Conditions
• Search for frame 35,000 of a REF.
disc.
•Set the switches on the SERVO
CHECKER as follows.
POWER ; ON
MODE SELECTOR ; LDP-505
FOCUS 2kHz ; OFF
TRKG 4kHz ; OFF
TRKG
0/C
; OFF
to CN1 on the
SERVO CHECKER
Specifications
RF terminal on the SERVO CHECKER
~
r
Maximize the amplitude.
4-2
Adjustment
RV1/PS-113
Adjustment
RV101/SV-79
Adjustment
CV1/SS-32
Adjustment
RV4/PR-80