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MaskedMan Tivo Expert
Joined: 10 Feb 2004 Posts: 1006 Location: Boone, IA |
Posted: Sat Jul 31, 2010 3:10 am Post subject: |
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There isn't IR pick-up window that I can see.
The chips have of the following on them:
ATMLH002
2FB 1
9H4368B
LM393
POR
58901
64861
LHON
REA85 degrees C
A949(m)
100UF 10v
photo
photo2
photo3 _________________ Edmund |
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MaskedMan Tivo Expert
Joined: 10 Feb 2004 Posts: 1006 Location: Boone, IA |
Posted: Sat Jul 31, 2010 3:27 am Post subject: |
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Now remote gets put back together so play with it. _________________ Edmund |
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3FG Expert
Joined: 19 May 2009 Posts: 3367
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Posted: Sat Jul 31, 2010 11:05 pm Post subject: |
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ATMLH002
2FB 1
9H4368B
I don't know what this is.
LM393
A voltage comparator (dual) probably used to separate on bursts from off during learning.
58901
64861
Don't know
LHON
REA85 degrees C
A949(m)
100UF 10v
This is a capacitor that will keep the voltage from drooping while sending an IR signal
The more recent pictures show normal soldering rather than the handwork I thought I saw.
I'm puzzled why they used a sub-PCB. Makes me wonder if this remotes is adapted from a different one which has the same button layout, but a microprocessor with a larger 40 pin package. |
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MaskedMan Tivo Expert
Joined: 10 Feb 2004 Posts: 1006 Location: Boone, IA |
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underquark Expert
Joined: 20 Jun 2005 Posts: 874 Location: UK |
Posted: Sun Aug 01, 2010 5:44 am Post subject: |
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MaskedMan wrote: | I can't take a picture worth a damn... |
Do you have a scanner? I use my old Umax Astra 4500 to scan pictures of remotes at low resolution and paste them into a spreadsheet where I list the codes. I reckon a higher resolution ought to yield decent images free from flash artefact since the light is bright and constant. As it is designed to scan documents, the focus is set for short macro.
Sample image (low res and shrunk to just 65K) here. |
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cauer29
Joined: 03 Feb 2010 Posts: 236
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Posted: Sun Aug 01, 2010 9:17 am Post subject: |
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underquark wrote: | MaskedMan wrote: | I can't take a picture worth a damn... |
Do you have a scanner? I use my old Umax Astra 4500 to scan pictures of remotes at low resolution and paste them into a spreadsheet where I list the codes. I reckon a higher resolution ought to yield decent images free from flash artefact since the light is bright and constant. As it is designed to scan documents, the focus is set for short macro.
Sample image (low res and shrunk to just 65K) here. |
One small caveat with scanning instead of using a camera, is that while old scanners tend to use CCD imagers that work well in terms of "depth of field" and keeping things in focus even if they're not flat against the glass, newer scanners almost always use CMOS imagers and these apparently have a very shallow "depth of field". In my experience, with a CMOS imager, things that are even just 1mm above the glass, are very fuzzy looking in the resulting scan, while a CCD imager gives an acceptably sharp looking scan even for things that are 2-3mm above the glass.
You can't really blame the scanner mfgrs for that since they're really only intended for use with paper documents that lay flat against the glass.
A.A. |
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Ellen
Joined: 03 Aug 2003 Posts: 103 Location: East of the Rock, West of the Hard Place |
Posted: Tue Nov 30, 2010 1:41 pm Post subject: |
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Since I don't see any holes for a 6-pin connector in the PCB pics in this thread, am I correct that it was determined that despite being a UEI remote we won't be able to JP1 it? |
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