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): 29/98頁(yè)
文件大小: 2244K
5 Troubleshooting
PN22N*
5-11
5-1-19 OSD Failure
C312(–)input is right
T402Pin 10 input is right
Check and replace Q101.
Yes
Yes
No
Check and replace D301 and Q301.
No
IC103 Pin 7 and 8
inputs are right
Check IC201 Pin 41 and 42
ICS201 Pin 16 and 17.
Yes
No
IC103 Pin 20, 21 and 22 outputs
are right
Check and replace IC103.
No
Check and replace IC101.
Yes
Done
Check CN204 and connector Ass’y.
24
24
C312(-)
CH1 RMS = 4.28V
19
48 49
WAVEFORMS
19
T402 #10
CH1 RMS = 11.52V
49
IC102 #21 (=IC103 #8)
CH1 RMS =4.064V
48
IC102 #20 (=IC103 #7)
CH1 RMS = 3.664 V
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