Philips CD931 - Service Test Program

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SERVICE TEST PROGRAM
PRESS 2 EEYS SIMLTAMEOUSLY;
PLAY, STOR, WENT, PREVIOUS
+ BOWER On
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a SERVICE wOOE 3 RADIAL TEST srl
ERROR CODE TABLE
SYSTEM ERRORS
ERO2
ERO3
ERO4
EROS
ERO6
ERO7
ER08
ER60
ER61
ER67
Focus error
Radial error
Too many TL
TL low to long
dump error
Subcode error
TOC error
EEPROM error during initialisation
EEPROM error during read or write
No or bad communication between SERVO and USER pP
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CHECK OF THE PHOTODIODES
ie
D2 power on signal Signal depends on Distance tens >
4262728 IR LED of remote control
CHECK OF LASER SUPPLY
The laser, the lasersupply plus the monitor diode form a feedback system.
T-23966A
A defect in the lasersupply may result In the destruction of the laser. If, in that case, the taser is replaced, (= complete
C.D.M.-unit) the new laser will also become defective. However, it is impossible to check and repair a feedback system if
a link is missing. For this reason the laser supply can be checked with teh replacement circuit for laser assembly.
1.8<V <2.
OV + 0.2V
After opening SK, the led will emit more tight for a short moment.
—)
70<mV <220
1.8<V <2.3
70<mV <220) «
CHECK OF CDM-9
WARNINGS
1. Never disconnect flex when power Is on.
2. Laser power is’ adjusted during the production process
and may not be readjusted.