Servicing Notes - Sony TCS-30D Service Manual

THE OPERATION CHECK AND THE VOLTAGE CHECK
WHEN THE MAIN BOARD REMOVED
This set detects which button of
was pressed using the POWER switch (S303).
However, this button operation cannot be detected if the MAIN
board is removed because the POWER switch (S303) is mounted
on the MAIN board.
Therefore, if the operation check and the voltage check are per-
formed with the MAIN board removed, the POWER switch (S303)
must be fixed to ON state.
– MAIN BOARD (Conductor Side) –
SECTION 1

SERVICING NOTES

[REC] [PLAY] [FF] [REW]
, , , or
S303
on
CHANGE THE SPECIFICATION (US Model Only)
For the mounted MAIN board (A-3021-325-A), the TAP101 and
201 patterns are opened.
This specification is for the Canadian, AEP, E, and Chinese mod-
els.
Accordingly for the US model, short the TAP101 and 201 with a
solder to change the specification.
– MAIN BOARD (Conductor Side) –
– 3 –
TAP201
TAP202
IC302
TAP101
TAP102
TAP201
TAP202
TAP101
TAP102