Technics SL-PS900 - FL Display Internal Connections; FL Display Wiring Diagrams

aye
M4
>
« and lower
:udes of
orm are equal.
i
—_
Is pin @ of (C102
“Sat “HIGH” of “LOW"2
a
Is pin ® of CN102
at “HIGH” or “LOW"2
Remains at
ay Check pin @ of
1C101 Above 0.6 V Measure voltage
between © and ©
of Q101.
Remains at
oy"
Remove the test disc
Turn on open/close
switch (S626)
Does lens make NO
vertical movements?
Are there outputs
at pins @ and @ of
1C103?
Does laser diode NO
come on? OK
xES Optical pickup
Measure voltage~_ Below 0.5V | failure
Load the across R101.
test disc
NG
Is there an output
at pin @ of 1C102?
OK
1C103 failure
Turn on
open/close Above 0.5V
switch
(S626)
Optical
pickup
failure
1C102 failure
Changes from
“H” to “L”. Below 0.6 V
Check pin © of
CN102
Changes from
bl os ha to a lay
Q101 or optical
10301 or 1C402 pickup is
10102 failure Set _ 10101 failure
| SL-PS900 SL-PS900 |
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1) Fl,F2 --- Fidament
2) NP ------ No pin
3) 1G~16G --- Grid
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