Sony CDP-D500 - SECTION 5 ELECTRICAL ADJUSTMENTS; Balance Level Adjustment

– 17 –
6. Check the level B of the oscilloscope’s waveform and the A
(DC voltage) of the center of the Traverse waveform.
Confirm the following:
A/B × 100 = less than ± 6 (%)
RF PLL Free-run Frequency Check
Procedure:
1. Connect frequency counter to test point (XPLCK) with a lead
wire.
Center of the waveform
B
level : 1.5 Vp-p
A (DC voltage
)
0V
Traverse waveform
+1.5
–0.5
7. Press the “8” button. (The tracking servo and sledding servo are
turned ON.) Confirm the C (DC voltage) is almost equal to the
A (DC voltage) is step 6.
Tracking servo
Sledding servo
OFF
C (DC
voltage
)
0V
Traverse waveform
Tracking servo
Sledding servo
ON
8. Disconnect the lead wire of TP (ADJ) connected in step 1.
2. Turned Power switch on.
3. Put the disc (YEDS-18) in to play the number five track.
Confirm that reading on frequency counter is 4.3218 MHz.
Balance Level Adjustment
(Generally it does not need to adjust because it has alredy adjusted
before shipping.)
1. Turn on the disc (YEDS-18) and play the number 2 track (1 kHz
0 dBs)
2. Connect level meter to BALANCE OUT (J304)
3. Adjustment level
BALANCE OUT: +24 dBs
RV101 (L-CH)
RV201 (R-CH)
+
–
frequency counte
r
MAIN board
TP (XPLCK)
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6/8/15
Also made in Heiloo, Holland.