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Shiladitya
Joined: 31 May 2008
Posts: 306
Location: New Delhi, India
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 Posted: Thu Jan 28, 2010 5:25 am Post subject: Pentax K1000 Meter Repair |
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Shiladitya wrote:
The meter on my otherwise perfectly working K1000 was dead since the time I got it. I decided to get a little adventurous and try to repair it myself. As a result I started reading the 109 page K1000 service manual very intently  .
Anyway, after removing the bottom cover and the battery chamber, the first part of the problem was encountered. The black wire that connects to the negative battery terminal had come off.
So I am happy, at least for now I do not have to open the top cover to reach the actual metering circuit and photocells and the rest of it. But going by the Service manual I have the later model of the camera which has a stainless steel battery terminal and it is difficult to solder a wire to stainless steel. It recommends that a conductive adhesive be used like conductive epoxy.
Would this work. Click here to see on Ebay
Can anyone suggest any alternatives that can be used.
EDIT: Will a copper or Silver conductive adhesive tape work?
Thanks for all the help.
_________________
Camera: 35mm SLR: Nikon F4s, Nikon FG, FE2, FM2n, FA; Pentax K1000, Spotmatic II, MZ60; Exakta Varex IIb, Olympus OM1n;
MF TLR: Yashica Mat 124G, Yashica 635, Rolleiflex Automat MX EVS
35mm RF: Voigtlander Prominent, Yashica Electro GSN, Minolta Hi-Matic 7s
MF Folder: Agfa Isolette III
Digital: Canon 5DC, Canon 550D
Lenses: Nikkor- 2.8/55 Micro, 1.4/50 AIS, 1.2/55 AI, 2.8/24 AIS, 2.8/20 AIS, 4/200 AIS, 2.5/105 AIS
Pentax K: SMC 1.7/50, 2.8/24, 3.5/135, 4/200 & 4.5/80-200
M42: SMC Tak 1.8/55, SMC Tak 3.5/28, SMC Tak 3.5/135, Super Tak 4/200, Yasinon DX 1.7/50, Meyer Oreston 1.8/50
Zuiko: 1.8/50, 3.5/28
Exakta: Pancolar 2/50, Pentacon 3.5/30, Enna 4.5/240
Prominent: Ultron 2/50, Skoparon 3.5/35, Dynaon 4.5/100 |
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visualopsins
Joined: 05 Mar 2009
Posts: 11060
Location: California
Expire: 2025-04-11
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| Posted: Thu Jan 28, 2010 5:51 am Post subject: |
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visualopsins wrote:
that is the correct epoxy to use, but it is expensive! your local electronics supply store is probably a more economical source.
another alternative is to use a mechanical connection, such as a crimp or a tiny nut&bolt (if room enough) -- the goal is an airtight connection that will not corrode and degrade over time.
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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unclemack
Joined: 21 Jun 2009
Posts: 51
Location: UK frozen north
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| Posted: Thu Jan 28, 2010 11:57 am Post subject: |
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unclemack wrote:
In the past for a quick repair I've cut off the wire-clamp part of an automotive crimp connector and soldered a wire to it, then crimped it to the battery terminal. Works just fine! |
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Shiladitya
Joined: 31 May 2008
Posts: 306
Location: New Delhi, India
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| Posted: Fri Jan 29, 2010 4:58 am Post subject: |
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Shiladitya wrote:
Thanks siriusdogstar for confirming. My search in the local strores did not prove successful. Will try some bigger shops during the weekend.
What about the conductive tapes? Would they work here?
unclemack, The crimp connector idea is good as well, will try this if I do not get the epoxy.
_________________
Camera: 35mm SLR: Nikon F4s, Nikon FG, FE2, FM2n, FA; Pentax K1000, Spotmatic II, MZ60; Exakta Varex IIb, Olympus OM1n;
MF TLR: Yashica Mat 124G, Yashica 635, Rolleiflex Automat MX EVS
35mm RF: Voigtlander Prominent, Yashica Electro GSN, Minolta Hi-Matic 7s
MF Folder: Agfa Isolette III
Digital: Canon 5DC, Canon 550D
Lenses: Nikkor- 2.8/55 Micro, 1.4/50 AIS, 1.2/55 AI, 2.8/24 AIS, 2.8/20 AIS, 4/200 AIS, 2.5/105 AIS
Pentax K: SMC 1.7/50, 2.8/24, 3.5/135, 4/200 & 4.5/80-200
M42: SMC Tak 1.8/55, SMC Tak 3.5/28, SMC Tak 3.5/135, Super Tak 4/200, Yasinon DX 1.7/50, Meyer Oreston 1.8/50
Zuiko: 1.8/50, 3.5/28
Exakta: Pancolar 2/50, Pentacon 3.5/30, Enna 4.5/240
Prominent: Ultron 2/50, Skoparon 3.5/35, Dynaon 4.5/100 |
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