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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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This is a long shot, but we have this unit with an IC 531 on the signal
board gone thermal, losing sync. The IC part number is 350-28912 and is a Philips SAA4977H/107. The signal board is available from Panurgy, the Loewe support in the US for an absurd cost. The signal board part number is 396-87934.050. I cannot find a source for the chip. If anyone has any contacts in Europe that might have access to the part, or has a scrapper, I would appreciate a look. Thanks, Leonard Caillouet |
#2
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On Dec 31, 12:03*pm, "Leonard Caillouet" wrote:
This is a long shot, but we have this unit with an IC 531 on the signal board gone thermal, losing sync. *The IC part number is 350-28912 and is a Philips SAA4977H/107. *The signal board is available from Panurgy, the Loewe support in the US for an absurd cost. *The signal board part number is 396-87934.050. *I cannot find a source for the chip. *If anyone has any contacts in Europe that might have access to the part, or has a scrapper, I would appreciate a look. Thanks, Leonard Caillouet Leonard, I'm not sure what that unit is but I used to work on Immix or Scitex NLEs (which also had absurd service contracts) about 10 years ago that had Phillips ICs with that same SAA prefix. Here's a link to the datasheet for that http://www.nxp.com/all_datasheets/index.html One thing I have done in the past is to call up Avnet http://www.em.avnet.com/home/ or Impact http://www.impactcomponents.com/inqu...talog0882.html or some other big wig distributer that only deals with manufacturers and tell them that I'm working on a design project with that particular IC and may have a need for 10,000 or more but you need to do some testing. I've actually gotten free samples of a number of ICs that only the big wigs have. Not quite ethical but it does work. Do a little sweet talkin'. On another note I have read your name on a bunch of old Mitsubishi issues. I have an old CS3506 with color issues. Is it possible to have a picture tube be so weak on green that a footbal field or golf course looks red/purple yet the on screen display is a beautiful green? I'm going nuts because I feel the tube is OK but I can't find a problem in the chroma. Karl |
#3
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On Mon, 31 Dec 2007 12:03:15 -0500, Leonard Caillouet wrote:
This is a long shot, but we have this unit with an IC 531 on the signal board gone thermal, losing sync. The IC part number is 350-28912 and is a Philips SAA4977H/107. The signal board is available from Panurgy, the Loewe support in the US for an absurd cost. The signal board part number is 396-87934.050. I cannot find a source for the chip. If anyone has any contacts in Europe that might have access to the part, or has a scrapper, I would appreciate a look. Thanks, Leonard Caillouet all I found was this SAA4977HV107 Datasheet Locator PH 02 IN STOCK! VPE: **/ **/** ** 8403 Supplier Information SAA4977HV107 Datasheet Locator PH 02 IN STOCK! VPE: **/ **/** ** 25210 Supplier Information SAA4977HV107 Datasheet Locator PH 02 IN STOCK! VPE: **/ **/** ** 12605 Supplier Information http://www.netcomponents.com/results...BMIT1=Searc h -- Want the ultimate in free OTA SD/HDTV Recorder? http://mythtv.org My Tivo Experience http://wesnewell.no-ip.com/tivo.htm Tivo HD/S3 compared http://wesnewell.no-ip.com/mythtivo.htm AMD cpu help http://wesnewell.no-ip.com/cpu.php |
#4
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On Mon, 31 Dec 2007 09:55:05 -0800 (PST), Floyd Gilmour
put finger to keyboard and composed: Leonard, I'm not sure what that unit is but I used to work on Immix or Scitex NLEs (which also had absurd service contracts) about 10 years ago that had Phillips ICs with that same SAA prefix. Here's a link to the datasheet for that http://www.nxp.com/all_datasheets/index.html One thing I have done in the past is to call up Avnet http://www.em.avnet.com/home/ or Impact http://www.impactcomponents.com/inqu...talog0882.html or some other big wig distributer that only deals with manufacturers and tell them that I'm working on a design project with that particular IC and may have a need for 10,000 or more but you need to do some testing. I've actually gotten free samples of a number of ICs that only the big wigs have. Here is a link to the datasheet: http://www.nxp.com/pip/SAA4977H_2.html The chip contains a 16 kbyte ROM. It looks like the OP will need to go to Loewe or Philips for the part. - Franc Zabkar -- Please remove one 'i' from my address when replying by email. |
#5
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![]() "Wes Newell" wrote in message news:kvcej.7740$ZI4.477@trnddc08... On Mon, 31 Dec 2007 12:03:15 -0500, Leonard Caillouet wrote: This is a long shot, but we have this unit with an IC 531 on the signal board gone thermal, losing sync. The IC part number is 350-28912 and is a Philips SAA4977H/107. The signal board is available from Panurgy, the Loewe support in the US for an absurd cost. The signal board part number is 396-87934.050. I cannot find a source for the chip. If anyone has any contacts in Europe that might have access to the part, or has a scrapper, I would appreciate a look. Thanks, Leonard Caillouet all I found was this SAA4977HV107 Datasheet Locator PH 02 IN STOCK! VPE: **/ **/** ** 8403 Supplier Information SAA4977HV107 Datasheet Locator PH 02 IN STOCK! VPE: **/ **/** ** 25210 Supplier Information SAA4977HV107 Datasheet Locator PH 02 IN STOCK! VPE: **/ **/** ** 12605 Supplier Information http://www.netcomponents.com/results...BMIT1=Searc h That looks like one of those worthless chip brokers that hook your search. Fine if you want 5,000 of something I guess. |
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