Service Manual
Product
Axpert Max 3600-24
Doc No.
P1911061
Version
00
PAGE
Parts
Attribute
Reference values
Failure status
Q27/Q28/Q29/Q30
Resistor
GE: 22 ohm
GC: 184k
EC: 184K
Short or explosion
Diode
EC: 0.37V
CE: OL
Note1:
When you use the multimeter to measure the resistor of the transistor, because of
the capacitor in the circuit, it will cause the changing of the values when you measure the
CE and GE. So we recommend you measure the diode forward voltage of EC, and the
resistor of GE. These two values can reflect the situation of the transistor more correctly.
Note2:
If one or more of them were damaged, please replace all of them.
Drivers (This part is only used for repair checking)
Meanwhile, we also need to check the driver tubes of these power tubes.
R91/R102/R96/R101: (22R 1206)
R90/R99/R94/R97: (0R 1206)
D32/D35/D33/D34: (1N4148W 0.15A 75V SMD)
Parts
Attribute
Reference values
Failure status
R91/R102/R96/R101
Resistor
22 ohm
Open or other
values
R90/R99/R94/R97
Resistor
0 ohm
D32/D35/D33/D34
1
Resistor
+ to -: 270k
- to +: OL
Short or explosion
