參數(shù)資料
型號(hào): PN22N*
英文描述: 10A High Efficiency DC/DC µModule; Package: LGA; No of Pins: 104; Temperature Range: -40°C to +85°C
中文描述: Monitor_ICs:XC62FP3302 61CC4202 KA555D/TR RYC8220 - 200萬(wàn)FST3257 52742 S5D2501E19 - D0 52324 33262 TDA16850 7045
文件頁(yè)數(shù): 21/98頁(yè)
文件大?。?/td> 2244K
5 Troubleshooting
PN22N*
5-3
5-1-3 H_Deflection Failure
Q403 Drain waveformis right
Check R403, D416 and +210 V line.
Yes
No
Q404 Gate
waveforms are right
Check Q404 and R415.
Check +80 V line.
Yes
No
Q405 collector
waveforms are right
Check and replace D410 and Q405.
Check DY connector connection.
Yes
No
Check some parts around
QS202 and QS203.
ICS202 Pin 26
waveformis right
Check some parts around ICS202.
Yes
No
WAVEFORMS
20
21
23
14
14
ICS 202 #26
CH1 RMS = 8.88 V
21
Q404 Gate
CH1 RMS = 7.67 V
23
Q405 Collector
CH1 RMS =353.2 V
20
Q403 Drain
CH1 RMS = 188.4 V
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