Philips CD163 - Page 15

Turntable
disc free?
Actuator
movement?
Check
lightpath
Check
connector
check uP
connections
Repair
Repair
Check
components
opamp
OK
Replace
fe) ap
060
Check
components
1C7000
OK
N Replace
X-tal
1000
Replace
1C7000
Job
done
NOK
Replace
CDM
ES
ES
15
1)-Turntable and disc free?
Audible and visible control.
2)-Actuator movement?
Visual control.
3)-Signals on actuator 0.k.?
Triangle wave without disc.
See fig 1. -2Volt -}--“---¥---V---V.--
4)-Connections to actuator’o.k.?
Check flex connector pin 2 and 3.
5)-Communication uP <-> IC7000.
SIDA activity (pin 27 of IC7000).
6)-Focus
output
o.k.?
2.5
Volt
2.7
Volt
pp
See
fig
2
Measure with an 10k/3n3 low-pass filter.
7)-Components o.k.?
Check components R3010,R3011
c2012,C2 ,C2013
-ta
8)-Power supply for opamp o.k.?
Check components R3006,R3007
C2008, C2009,C2071,C2074
9)-Check components o.k.?
Check components R3074,R3075,R3076,R3077
R3078, R3079
€2075,C2076
10) & 11)-Pin 17 of IC7000: a frequency of 8.46MHz?
PCS60 678