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Old July 8th 04, 10:41 AM
Steve
 
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Default Pro-38 Scanner Mods

I've read loads of posts about the 29-54MHz
mod for this scanner. I know most people are trying to change this
band for the 66-88MHz band, but like other Brits, I'm trying to do the
opposite.The problem is, all the instructions I keep finding are
unclear as to what exactly I'm removing, since the guys doing it the
other way just need to fill in the blank link. I'm trying to find out
which of the diode, two fuseable resisitors and 100k resistor I should
be removing!!

More concerning though is what someone said about not actually
receiving anything below 39MHz, despite being able to input the
frequencies. Has anyone managed to grip this problem?

I only just bought this scanner for my other half
to stop her knicking my Kenny TH-F7E (Grrr), and of
course, it's the stuff below 39 that's of greatest
interest to her!! ;o)

Would appreciate any help and advice.

Steve
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Old July 8th 04, 09:21 PM
mike
 
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Default

hehe.
i work with them & own a pro-39.
i've never managed to make it RX anything.as u say will program ok
but no rx.

never been able to do it.

it would be nice!

the only thing i have found before (and that was on a 38 like yours)
is that the published mod does not seem to kill rx on 66-88 .
so it must be wrong.

hope we get some help!

mike
"Steve" wrote in message
om...
I've read loads of posts about the 29-54MHz
mod for this scanner. I know most people are trying to change this
band for the 66-88MHz band, but like other Brits, I'm trying to do the
opposite.The problem is, all the instructions I keep finding are
unclear as to what exactly I'm removing, since the guys doing it the
other way just need to fill in the blank link. I'm trying to find out
which of the diode, two fuseable resisitors and 100k resistor I should
be removing!!

More concerning though is what someone said about not actually
receiving anything below 39MHz, despite being able to input the
frequencies. Has anyone managed to grip this problem?

I only just bought this scanner for my other half
to stop her knicking my Kenny TH-F7E (Grrr), and of
course, it's the stuff below 39 that's of greatest
interest to her!! ;o)

Would appreciate any help and advice.

Steve



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Old July 9th 04, 11:35 AM
Steve
 
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At least I'm not the only one then!!! Out of curiosity, which
component should I be removing for the mod? I can only find references
to "the blank link near the top left corner of the IC", which
obviously don't help much when there's no blank link!!! Lol.

Can you shed any light Mike?

Cheers,

Steve
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Old July 10th 04, 03:19 AM
mike
 
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i think the mod for the pro-39 is on www.mods-dk steve.
the otherone might be there also.

mine is written on the back of a service sheet from radioshack which i got
years ago.
it relates to a link by a 100k resistor be the ic.

not my writing sadly.

i know i tried a 38 my mate had years ago, but we could not reset the cpu
even by pressing the buttons.

mike

"Steve" wrote in message
om...
At least I'm not the only one then!!! Out of curiosity, which
component should I be removing for the mod? I can only find references
to "the blank link near the top left corner of the IC", which
obviously don't help much when there's no blank link!!! Lol.

Can you shed any light Mike?

Cheers,

Steve



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Old July 10th 04, 05:52 PM
Steve
 
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Does that mean the 100k resisteor IS the link, or it's a link near the
resistor? I got the details of the mod of mods.dk, but it's not
specific enough, and everyone else just copies the same mod on their
pages!!

Basically, the layout is :-


FR Di
Tr - - -
- FR | | |
|-| - - - -----------------------------
- | |
| |
- | |
| 100k | |
- | |
| |
| |
| I C |
| |
| |
| |
| |
| |
| |
| |
-----------------------------


Where Tr is a Transistor, FR is a Fuseable Resistor, Di is a Diode
and IC is obvious!!!

Maybe someone can clarify (if you're not able to Mike) which of
these components needs removing?

Apologoes in advance for the poor quality of my diagram!!! He he

Steve


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Old July 10th 04, 05:52 PM
Steve
 
Posts: n/a
Default

Does that mean the 100k resisteor IS the link, or it's a link near the
resistor? I got the details of the mod of mods.dk, but it's not
specific enough, and everyone else just copies the same mod on their
pages!!

Basically, the layout is :-


FR Di
Tr - - -
- FR | | |
|-| - - - -----------------------------
- | |
| |
- | |
| 100k | |
- | |
| |
| |
| I C |
| |
| |
| |
| |
| |
| |
| |
-----------------------------


Where Tr is a Transistor, FR is a Fuseable Resistor, Di is a Diode
and IC is obvious!!!

Maybe someone can clarify (if you're not able to Mike) which of
these components needs removing?

Apologoes in advance for the poor quality of my diagram!!! He he

Steve
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Old July 11th 04, 12:37 AM
mike
 
Posts: n/a
Default

remove the diode steve.
i'd just lift one end or if it is surface mount
take it out then use a 1n914 or 1n4148 to replace it if necess.

mine (39 would not rx, but i think my vco is not set low enough.

mike

"Steve" wrote in message
om...
Does that mean the 100k resisteor IS the link, or it's a link near the
resistor? I got the details of the mod of mods.dk, but it's not
specific enough, and everyone else just copies the same mod on their
pages!!

Basically, the layout is :-


FR Di
Tr - - -
- FR | | |
|-| - - - -----------------------------
- | |
| |
- | |
| 100k | |
- | |
| |
| |
| I C |
| |
| |
| |
| |
| |
| |
| |
-----------------------------


Where Tr is a Transistor, FR is a Fuseable Resistor, Di is a Diode
and IC is obvious!!!

Maybe someone can clarify (if you're not able to Mike) which of
these components needs removing?

Apologoes in advance for the poor quality of my diagram!!! He he

Steve



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