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XL-MP150H/MP150E
(4) PLL system check.
When a disc is loaded, start play operation.
The HF waveform is normal, but the TOC data cannot be read.
Check the PDOUT waveform. (Figure 6)
Check around Pins 1,2,26,29 and 80 on IC1.
(5) Others.
The HF waveform is normal and the time is displayed nor-
mally, but no sound is produced. Or the sound has drop-
outs.
Is pin 35 (C2F) on IC1 "L" ?
If OK, Check the unit.
Yes
No
There are too many error flags on a damaged disc which makes
error correction impossible.
Check again using a known good disc.
7 – 4
Figure 6
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