Philips CDR600/00/17 Service Manual page 52

GB 48 8.
Oscillograms
PM3394B
ch1
1
ch3
T
ch2
3
CH1 2
CH2
2
CH3 2 V~ ALT MTB5.00us- 0.90dv ch1-
ch1 : Drain voltage at testpoint T632
ch2 : Drain current
ch3 : Gate voltage at testpoint T669
PM3394B
ch1
ch3
1
T
3
CH1 1
CH3 50mV~ ALT MTB5.00us- 0.90dv ch1-
ch1 : Drain voltage(T632)
ch2 : Oscillator voltage at pin 4 of IC7612
PM3394B
ch1
ch3
1
T
3
CH1 1
CH3 20mV~ ALT MTB5.00us- 0.90dv ch1-
ch1 : Drain voltage(T632)
ch3 : Sense voltage(T612)
CDR600 Faultfinding Guide