searching P67 ttl pentaprism electronic scheme

Fanad · 12-13-2019, 05:15 AM

Hello,
Does anyone know were to find the electronic scheme of a P67 TTL pentaprisme?
The one with IC on circuit board, ( it seems to be the latest model before P67ii).
Thanks!

tuco · 12-13-2019, 09:43 AM

I think that's going to be a hard one to find.

Silent Street · 12-13-2019, 04:36 PM

Source a TTL prism from eBay or a used-equipment dealer, disassemble it and go from there. It doesn't have to be in working order. You are talking about something that was introduced many decades ago and electronic schema (not scheme) is usually only available to repair facilities or those people who have drawn up schema directly from hands-on disassembly and observation.

Fanad · 12-14-2019, 12:40 AM

Originally posted by tuco

I think that's going to be a hard one to find.

Exact Tuco, soooo difficult ! I'v been looking on the web for a month... and nothing yet ;(

Fanad · 12-14-2019, 12:49 AM

Originally posted by Silent Street

Source a TTL prism from eBay or a used-equipment dealer, disassemble it and go from there. It doesn't have to be in working order. You are talking about something that was introduced many decades ago and electronic schema (not scheme) is usually only available to repair facilities or those people who have drawn up schema directly from hands-on disassembly and observation.

Of course, Silent Street,
before taking the time to do the full diagram with my prism, if someone has already done it or if a former technician from pentax comes by and has the documentation on his shelf I will be delighted.

dantonvb · 12-14-2019, 08:43 AM

Look at this discussion. There are some pictures of the electronic circuit.

TTL Meter Repair? - PentaxForums.com

Fanad · 12-15-2019, 12:54 AM

Originally posted by dantonvb

Look at this discussion. There are some pictures of the electronic circuit.

TTL Meter Repair? - PentaxForums.com

Thanks Dantonvb, I have already seen it, it's exactly my model, but the details are not exhaustive enough...

**kaseki** · 12-15-2019, 09:30 AM

Search wise, in the USA the term is 'schematic.' (I don't have one.)

Good Luck!

12-13-2019, 05:15 AM	#1
Fanad New Member Join Date: Dec 2019 Posts: 4	searching P67 ttl pentaprism electronic scheme Hello, Does anyone know were to find the electronic scheme of a P67 TTL pentaprisme? The one with IC on circuit board, ( it seems to be the latest model before P67ii). Thanks!

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12-13-2019, 09:43 AM	#2
tuco Pentaxian Join Date: Jul 2009 Location: Pugetopolis Posts: 10,565	I think that's going to be a hard one to find.

12-13-2019, 04:36 PM	#3
Silent Street Veteran Member Join Date: Nov 2011 Location: Castlemaine, Victoria Photos: Albums Posts: 1,083	Source a TTL prism from eBay or a used-equipment dealer, disassemble it and go from there. It doesn't have to be in working order. You are talking about something that was introduced many decades ago and electronic schema (not scheme) is usually only available to repair facilities or those people who have drawn up schema directly from hands-on disassembly and observation.

12-14-2019, 12:40 AM	#4
Fanad New Member Join Date: Dec 2019 Posts: 4 Original Poster	Originally posted by tuco I think that's going to be a hard one to find. Exact Tuco, soooo difficult ! I'v been looking on the web for a month... and nothing yet ;(

12-14-2019, 12:49 AM	#5
Fanad New Member Join Date: Dec 2019 Posts: 4 Original Poster	Originally posted by Silent Street Source a TTL prism from eBay or a used-equipment dealer, disassemble it and go from there. It doesn't have to be in working order. You are talking about something that was introduced many decades ago and electronic schema (not scheme) is usually only available to repair facilities or those people who have drawn up schema directly from hands-on disassembly and observation. Of course, Silent Street, before taking the time to do the full diagram with my prism, if someone has already done it or if a former technician from pentax comes by and has the documentation on his shelf I will be delighted.

12-14-2019, 08:43 AM	#6
dantonvb Forum Member Join Date: Aug 2019 Photos: Gallery Posts: 86	Look at this discussion. There are some pictures of the electronic circuit. TTL Meter Repair? - PentaxForums.com

12-15-2019, 12:54 AM	#7
Fanad New Member Join Date: Dec 2019 Posts: 4 Original Poster	Originally posted by dantonvb Look at this discussion. There are some pictures of the electronic circuit. TTL Meter Repair? - PentaxForums.com Thanks Dantonvb, I have already seen it, it's exactly my model, but the details are not exhaustive enough...

12-15-2019, 09:30 AM	#8
kaseki Loyal Site Supporter Join Date: Dec 2017 Photos: Gallery \| Albums Posts: 1,111	Search wise, in the USA the term is 'schematic.' (I don't have one.) Good Luck!

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