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Sanyo 20EZ B+ pot identify
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Topic: Sanyo 20EZ B+ pot identify (Read 4481 times)
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cornishHen
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Sanyo 20EZ B+ pot identify
«
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September 24, 2008, 08:32:10 pm »
I've been trying to figure out a video problem with a dk (2 board) boardset and a Sanyo 20 EZ. I decided to cover my bases in troubleshooting the problem today and checked the B+ voltage on the Sanyo. I found it was running on average at 91V...well below the desired 108V. I tried to adjust the B+ pot and it seems the pot is toast. It spins and has a small piece of metal bent/broken.
Can anyone help me identify the B+ pot/suitable replacement? Also, the R-Drive pot is partially broken but appears to adjust the red intensity fine. From what i'm seeing that pot is VR254 8ohm-200ohm? I found Bob Roberts has a nice selection of pots at:
http://arcadecontrols.com/BBBB/pots.html
.
Thanks for any help!
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qrz
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wrangling electrons since 1978
Re: Sanyo 20EZ B+ pot identify
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Reply #1 on:
September 24, 2008, 09:40:05 pm »
i'm not much help on this one....
the print i found ( web) is a very poor copy . the b+ pot just happens to lie in the area missing . figures !
does anyone have a decent print, schematic link . or a unit they could have a looksee ?
qrz
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Kevin Mullins
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Re: Sanyo 20EZ B+ pot identify
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Reply #2 on:
September 25, 2008, 01:36:00 am »
VR254 - 200 Ohm (R-Drive)
VR601 - 5k Ohm (B+)
Decent Schematic:
Sanyo 20EZV Schematic
There's a few more on ArcArc if you need those as well. Some slightly older versions, etc.
«
Last Edit: September 25, 2008, 01:44:00 am by Kevin Mullins
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Not a technician . . . . just a DIY'er.
cornishHen
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Re: Sanyo 20EZ B+ pot identify
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Reply #3 on:
September 25, 2008, 08:22:43 am »
Thanks for the help guys!
Placing an order with bob roberts today.
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Last Edit: September 25, 2008, 08:26:26 am by cornishHen
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qrz
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Re: Sanyo 20EZ B+ pot identify
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Reply #4 on:
September 26, 2008, 12:47:09 pm »
much better copy !
tnx kevin
qrz
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