Sony CDP-C75ES - Service Mode Se

4. Remove the chucking pulley.
precision
screwdriver
L-
re
ds
~“< 1
oN
—
\
¢
bracket
(press pulley)
Om chucking
pulley
2-3. SERVICE MODE
1. Operation Check
If the disc table is removed, perform the settings as
described below.
1. Remove the disc and then the magnet from the
bracket.
2. Use the magnet to fix the disc in position.
3. Connect test point IC302 (pin 79) to ground with
a lead wire.
4, Set the power switch (S901) to on.
5. When the panel switch is pressed, the unit operates
normally. (The OPEN/CLOSE (S804) and DISC
SKIP (S834) switches are disabled.)
{MAIN BOARD] -— Conductor Side —
1C302
Pin 79
TEST POINT
ow
chucking
yoke
@
E5)-— magnet _
| CDP-C75ES/C85ES/C705
_ 5. When the optical block is down under, move up it by rotating
gear (loading A) in the arrow @) direction with hands.
optical pick-up block
2. Display Check
1. Connect test point IC801 (pin 23) to ground with
a lead wire.
Set the power switch (S901) to on.
3. Press the switches on the panel and check that each
of the corresponding indicators lights.
ad
{DISPLAY BOARD] —- Conductor Side —
FL801| FLUORESCENT INDICATOR
—— 1IC801
Pin 23
TEST POINT
iy