參數(shù)資料
型號(hào): PG21*
英文描述: Dual 100mA/500mA Low Dropout, Low Noise, Micropower Regulator; Package: DFN; No of Pins: 12; Temperature Range: -40°C to +125°C
中文描述: Monitor_ICs:88P6232 7045 SAM9222G PG17/19 TNY254P 52748 KS2501B - 10 KA2507
文件頁(yè)數(shù): 17/100頁(yè)
文件大小: 3595K
PG17**/PG19**/PG21**
5-1
5 Troubleshooting
5-1 Parts Level Troubleshooting
Notes:
1. If a picture does not appear, fully rotate the brightness and contrast controls clockwise and reinspect.
2. Check the following circuits.
No raster appears: Power circuit, Horizontal output circuit, H/V control circuit, and H/V output circuit.
High voltage develops but no raster appears: Video output circuits.
High voltage does not develop: Horizontal output circuits.
5-1-1 No Power Supply
Check and replace FG601, D601,
IC661, IC662.
Done.
Repeating start
Check and replace D601, D604, D663,
Q632, and Q664.
No
Yes
IC601 Pin 1 waveform is right
Check and replace IC601,
IC602, IC604.
Yes
No
IC602 and IC604
are right
Replace parts and verify voltages.
Yes
No
Normal operation
Replace Main board.
Yes
Yes
No
WAVEFORMS
1
1
544 V (IC601, #1)
CH1 P-P = 544 V
CH1 RMS = 332.4 V
Verify voltages.
相關(guān)PDF資料
PDF描述
PG2360 800MHz to 2.7GHz RF Measuring Receiver; Package: MSOP; No of Pins: 8; Temperature Range: -40°C to +125°C
PG2361 TRANSISTOR | BJT | PNP | 50V V(BR)CEO | 10A I(C) | TO-210AC
PG2362 40MHz to 500MHz Quadrature Demodulator with VGA; Package: QFN; No of Pins: 16; Temperature Range: -40°C to +125°C
PG2363 TRANSISTOR | BJT | PNP | 70V V(BR)CEO | 10A I(C) | TO-210AC
PG2364 TRANSISTOR | BJT | PNP | 100V V(BR)CEO | 10A I(C) | TO-210AC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PG2101 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TRANSISTOR | BJT | PNP | 60V V(BR)CEO | 2A I(C) | TO-66
PG2102 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TRANSISTOR | BJT | PNP | 80V V(BR)CEO | 2A I(C) | TO-66
PG2103 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TRANSISTOR | BJT | PNP | 100V V(BR)CEO | 2A I(C) | TO-66
PG2104 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TRANSISTOR | BJT | PNP | 140V V(BR)CEO | 2A I(C) | TO-66