HT750/HT1250 - volume pot problem - intermittent volume

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g8tzl2004
Posts: 1128
Joined: Wed Sep 08, 2004 10:13 am

HT750/HT1250 - volume pot problem - intermittent volume

Post by g8tzl2004 »

The volume pot on my HT750/GP340 series is intermittent. The radio switches on OK but as I "wobble" the volume pot, the audio level varies from what you would expect to a low level.

Any views on the likely cause such as:

- where pot is soldered to PCB needs reflowing?
- dirty volume track - is there an access point to use switch clearner?

Hopefully I will not need to replace the pot.

Thanks
GlennD
Posts: 482
Joined: Tue Jun 15, 2004 8:00 am

Re: HT750/HT1250 - volume pot problem - intermittent volume

Post by GlennD »

We replace the pot on a regular basis. As long as you stay clear of the very tiny surface mount components around the high and low side you are golden.
g8tzl2004
Posts: 1128
Joined: Wed Sep 08, 2004 10:13 am

Re: HT750/HT1250 - volume pot problem - intermittent volume

Post by g8tzl2004 »

It it likely just a dry joint where the pot is soldered to PCB or do I need to replace the pot?
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arlojanis
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Joined: Mon Jan 28, 2002 4:00 pm

Re: HT750/HT1250 - volume pot problem - intermittent volume

Post by arlojanis »

I replace a lot of Motorola volume controls. I also see a very few that just need resoldering. Look at it good or just solder and try it again.
"The world runs on radio."
g8tzl2004
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Joined: Wed Sep 08, 2004 10:13 am

Re: HT750/HT1250 - volume pot problem - intermittent volume

Post by g8tzl2004 »

Thanks.

Can you remove the volume pot with a standard soldering iron/solder remover - or do you need special "heat" tools?
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d119
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Joined: Tue Mar 19, 2002 4:00 pm

Re: HT750/HT1250 - volume pot problem - intermittent volume

Post by d119 »

g8tzl2004 wrote:Thanks.

Can you remove the volume pot with a standard soldering iron/solder remover - or do you need special "heat" tools?
You can do it with standard equipment. Just be cautious as always. It's a through-hole device.
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fineshot1
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Joined: Wed Oct 12, 2005 5:13 am

Re: HT750/HT1250 - volume pot problem - intermittent volume

Post by fineshot1 »

In case you need to order a new one the part number = 1880619Z06
fineshot1
NJ USA
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