Samsung DSR9500VIACI, DSR9500 FTA, DSR9500EMVIA, DSR9500 CI operating instructions No RF-MOD Output

Page 34

NO RF-MOD OUTPUT

Troubleshooting

Q823 Base is High?

Yes

No

Check U106.

Q824 Collecter is 5V?

Yes

No

Check L801.

Check Q824.

Video signal occur

No

Q807 Emittter?

 

Yes

When RF channel tunning, I2C CLK, data are OK?

: R166, R168.

Yes

BD75 is 30 3V?

Yes

Check MOD801.

U801 (12, 14)

No

Check U801.

video signal is OK?

 

 

 

 

 

Yes

Check Q807.

Samsung Electronics

4-3

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Contents Digital Satellite Receiver PCB Diagrams Main Conductor Side Front Electrical Parts List Electrical Parts List R1026 R402 JACK-SCART42P/2R,-,SN,BLK U112 CP500 CHIP0OHM,5%,1/10W,DA,TP,2012 Q703 Loc.No RP500 U500 C650 Q650 R197 CHIP0OHM,5%,1/10W,DA,TP,2012 R715 RP2001 CHIP0ohm,5%,1/16W,DA,TP,1608 C100 2203-000236 AL47uF,20%,25V,GP,-,5x11,2mm L102 CHIP0OHM,5%,1/10W,DA,TP,2012 Q804 2007-000120 CHIP0OHM,5%,1/10W,DA,TP,2012 R828 SMPSSRV22901EA,P151,AC/DC,-,AC85 2W J Mini Exploded View and Parts List Memo Troubleshooting No Power LED OFFNo Locking No RF-MOD Output No Spdif Output No S-VIDEO Output No S/W Download U801 12 video signal? U801 14 signal? No Video OUT VCR No Audio OUT Memo
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