16
Multimeter inoperative in Power Output
Function
1. Components on ALC/Power PCB-610
a. Capacitors C601 -C603, C604, C608,
C609
b. Diodes D601, D602
c. Resistors R601, R605, R606
d. POT R605
e. Transistor Q601
2. Switch SW401A&B Meter Switch PCB-510
3. M-2 Multimeter
4. +12V Regulated Power Supply on LV & Bias
PCB-260
Multimeter inoperative in ALC Function
1. Components on ALC/Power PCB-610
a. Capacitors C606 & C607
b. Resistors R602 & R603
c. Diodes D603 & D604
2. POT R13 on front panel
3. Resistor R312 LV & Bias PCB-260
4. Switch SW401A&B Meter Switch PCB-510
5. M-2 Multimeter
Plate idle current over 160 ma or does not read
zero in standby mode
1. Components on LV & Bias PCB-260
a. Transistor Q302
b. Diodes D303 - D310
c. Resistor R304
d. Transient Voltage Suppressor TSD301
e. Capacitor C302
f. Resistors R308 - R310
No Plate idle current
1. Components on LV & Bias PCB-260
a. Transistor Q302
b. Diodes D303 - D310, D311
c. Resistor R301 &R304
d. Transient Voltage Suppressor TSD301
e. Capacitor C302
f. Resistors R308 - R310
g. Relay K301A
No Plate Voltage or only 50% Plate Voltage
1. Components on HV Capacitor PCB-105
a. Capacitors C201 - C208
b. Resistors R201 - R208
2. Components on HV Diode PCB-110
a. Diodes D101 - D110
b. Capacitors C101 - C110
c. Resistor R209
