JVC L-E22 - Troubleshooting

13. Troubleshooting
The tonearm does not advance during play only.
Although the tonearm moves to the right and left, the
stylus does not advance when put into the play mode.
Does a voltage
change occur at the test point
(TP101) when the tonearm is
moved inwards
‘by hand ?
PT1 of the arm angle sensor is defective.
So replace it.
1C102 or adjacent parts connecting with pins 1, 2, 3 of
1C102 is defective. So repiace it.
The tonearm operates abnormally when in the play mode.
Just after the tonearm lowers down on the record, it
suddenly moves inwards scratching the record disc.
With the tonearm at the up position, adjust R124 so that
3.7 + 0.2 V appears across the test point (TP101).
L-E22
14s : No. 2672