Thanks Jeff, GE 25GT522 CTC-177H problem; no audio fix: removal of Q1903
Best tip i've had to date. Impress in-laws at right price..... $00.00 for them, and right amount of time spent on unit for me.... Thanks Much "joe" ================================= [EMAIL PROTECTED] From: [EMAIL PROTECTED] (Intrepid�Video�Support) Date: Mon, Mar 15, 2004, 10:52pm To: [EMAIL PROTECTED] (ELECTRONICS PROFESSIONALS LIST) Subject: Re: [Techs] GE 25GT522 / CTC-177H No Audio Reply�to: [EMAIL PROTECTED] (ELECTRONICS PROFESSIONALS LIST) ================================= Joe, >From Tech Repair CD: ================================= RCA\CTC177\LOW OR NO AUDIO* BAD EEPROM* TO REPROGRAM IF SET HAS SPEAKER\ON OFF MENU FUNCTION\\\1.DISCONNECT AC FROM CHASSIS\2.UNSOLDER PIN 8 OF THE EEPROM\3.USE A PICK TO SHORT PIN 8 TO THE PAD* TEMP. RESTORING B+.\4.PLUG THE SET IN AND TURN IT ON\5.REMOVE THE PICK* AND THEREFOR THE SHORT CIRCUIT\6.USE THE MENU FUNCTION TO SELECT SPEAKER ON-OFF\7.TURN THE SPEAKER BACK ON AND 8.UNPLUG AC AND RE-SOLDER PIN 8 ================================= RCA\CTC177\LOW OR NO AUDIO.\\\\REPLACE OR REMOVE Q1903.\\\\\\\\ ================================= RCA\CTC177\NO AUDIO.\\\\REPLACE DIODE CR4704 PN # 207878. ALSO CHECK AND REPLACE\R4702 AND R4517 IF NECESSARY. ALSO CHECK U4501.\\\\\\\ ================================= RCA\CTC177\NO OR LOW AUDIO\\\\cheap fix is to remove R1915\\\\\\\\ ================================= RCA\CTC177\NO SOUND- ON-SCREEN DISPLAY SHOWS THAT VOLUME IS GOING UP OR\DOWN\\\A cheap fix is to disconnect pin #3 on U1901 amp chip- this\is the mute pin and the only problem with this repair is\that the set makes a small popping sound when turned on/off-\the set still will mute when MUTE is pressed and will be\muted when changing channels- otherwise replace U3101\\\\ ================================= Jeff Dougherty Intrepid Video TV/VCR 263 S Front St Steelton PA 17113 fax...717-564-4952 www.intrepid-video.com www.tech-repair.net ================================= From: "Joe Tech2004" <[EMAIL PROTECTED]> To: "Email list for ELECTRONICS PROFESSIONALS only" <[EMAIL PROTECTED]> Sent: Monday, March 15, 2004 9:42 PM Subject: [Techs] GE 25GT522 / CTC-177H No Audio ================================= GE 25GT522 CTC-177H No Audio ================================= Cust to drop off unit tomorrow, just trying to get a jump start, it belongs to parents of my brother-in-law and I would like to get off bench sap... NO PRINT. Unit has no audio, suspect EEPROM. Unit was already fixed once for tuner connection problems. Just wanted to know if anyone has any audio repair tips on this so I can try to make it a quickie... doing repair at parts only charge.... Thanks "joe" Joes....Electronics (Joe:Tech/2004) [EMAIL PROTECTED] Fax::509-479-2283 ______________________________________________ Tech Repair CD...order your just $49.00 plus shipping...One year of updates free. www.intrepid-video.com www.tech-repair.net Techs mailing list [EMAIL PROTECTED] http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com ______________________________________________ Tech Repair CD...order your just $49.00 plus shipping...One year of updates free. www.intrepid-video.com www.tech-repair.net Techs mailing list [EMAIL PROTECTED] http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com Joes....Electronics �(Joe:Tech/2004) [EMAIL PROTECTED] Fax::509-479-2283 _______________________________________________ Tech Repair CD...order your just $49.00 plus shipping...One year of updates free. www.intrepid-video.com www.tech-repair.net Techs mailing list [EMAIL PROTECTED] http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com
