XP7000/XP5000
52
6
Check F401 resistor value
7
YES
(OPEN)
NO
Replace F401.
A
F401 resistor value
OPEN?
Check the waveform.
Note: Do not short-circuit the oscilloscope chassis with the chassis of this unit when checking the waveform.
Check the waveform between pin 1-2 (LO-COM) of IC402
Check the rectangular wave.
Period: approx. 14
µ
S (approx. 70kHz)
Amplitude: approx. 15 Vp-p
(Probe GND: IC402 Pin 2)
Check the waveform between emitter and collector of Q407 (IGBT)
Check the rectangular wave.
Period: approx. 14
µ
S (approx. 70kHz)
Amplitude: approx. 338 Vp-p (U/V)
approx. 320 Vp-p (H/B/W/K/O)
approx. 338 Vp-p (A)
Amplitude may vary depending on the primary
side.
(Probe GND: IC402 Pin 2)
Turn the power on.
B
C
13.9
µ
S
(71.94kHz)
15V
p-p
Amplitude
Содержание XP7000
Страница 30: ...XP7000 XP5000 30 B B 2NA WF39710 2 XP7000 2NA WF39710 2 XP5000 Pattern side...
Страница 31: ...XP7000 XP5000 31 B B Pattern side 2NA WF39710 2 XP7000 2NA WF39710 2 XP5000...
Страница 60: ...XP7000 XP5000 60 15Vp p 280Vp p YES OPEN IC402 2 IC402 2 IC402 1 2 LO COM Q407 IGBT B...
Страница 62: ...XP7000 XP5000 62 IC402 IC401 IC403 IC403 B...
