Sanyo CP10 - Adjustments and Service Mode; Service Mode Setup and Equipment

ADJUSTMENTS
SSS
SSS
rs
sp
hs
SSS
Sh
D Before making adjustments, please read the “before disassembling and repairing”
“precaution for handling pickup” “description of leser beam control circuit”and
» “disassembly”
* Service Mode
This mode is used for adjustment when servicing and its
functions are incorporated in the microcomputer (1C501).
Please read following explanation carefully to understand
the function of this mode,
(1) The program of |C 501 operates when the power
switch is “ON” and reset signal is input to pin 18 of
IC 501,
(2) First, select either a service program routine or a
normal routine.
(3) If you select a service program routine, the micro-
processor brings the necessary work from each sub-
routine in accordance with the key inputs, then
executes the work,
With this service mode, you can efficiently check
or
Test disc necessary for adjustment
) Measuring equipment necessary for adjustment
Equipment Model No. (manufacturer)
Synchroscope $S5711 (100 MHz — Doble reflective
BAND-PASS FILTER
Memory scope DSS 6521 (storage scope) kikusui Denshi
AC digital voltmeter | Digital tester or digital multimeter is available IN OUT
DC digital voltmeter | Digital tester or digital multimeter is available
Audio signal generator
Band
pass
filter
Band
pass
filter
(see
attached
drawing)
GNO
GND
Notes;
a Other manufactures’ equipment which has same specificat-
ions with ones designated above may be used.
b Use a probe when observing signal using an oscilloscope,
memory scope or digital voltmeter.