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Dim display or white light break through


 

Hi,
?
I have had two units with a dim display and one where the there is white light break through on the right hand edge, is? a replacment display the cure? what else could cause this?
?
what does the -15V do and the +12 V do from the BUK converter, PS I have had a few 100?H inductors die (in the Buk inverter) , but this will effect switch on.
?
73
?
Andrerw G8UUG


9h1kr
 

Hi, have same issue with right hand edge brightness of the screen, was wondering if it is a common issue apart from hf o/p pa's blowing out.
73


On Sun, 19 Jan 2025 at 20:27, Andrew Lenton
<a@...> wrote:
Hi,
?
I have had two units with a dim display and one where the there is white light break through on the right hand edge, is? a replacment display the cure? what else could cause this?
?
what does the -15V do and the +12 V do from the BUK converter, PS I have had a few 100?H inductors die (in the Buk inverter) , but this will effect switch on.
?
73
?
Andrerw G8UUG


 

开云体育

Hi not sure it is common, fault but through it out there, did you fix it?

?

KR

?

Andrew

?

From: [email protected] <[email protected]> On Behalf Of 9h1kr via groups.io
Sent: 19 January 2025 19:37
To: [email protected]
Subject: Re: [ic7000] Dim display or white light break through

?

Hi, have same issue with right hand edge brightness of the screen, was wondering if it is a common issue apart from hf o/p pa's blowing out.
73

?

On Sun, 19 Jan 2025 at 20:27, Andrew Lenton

<a@...> wrote:

Hi,

?

I have had two units with a dim display and one where the there is white light break through on the right hand edge, is? a replacment display the cure? what else could cause this?

?

what does the -15V do and the +12 V do from the BUK converter, PS I have had a few 100?H inductors die (in the Buk inverter) , but this will effect switch on.

?

73

?

Andrerw G8UUG


9h1kr
 

Hi Andrew,

I came across a Ic-7300 at a very good price and kept on working like nothing happened, came by at the right time too.?

I'm think about sourcing the pa's first for the ic-7000, otherwise the vhf/uhf bands work fine, and as for hf reception comparison with the 7300 I find it better for filtering out weak signals imho!

73 de 9H1KR


On Mon, 20 Jan 2025 at 11:13, Andrew Lenton
<a@...> wrote:

Hi not sure it is common, fault but through it out there, did you fix it?

?

KR

?

Andrew

?

From: [email protected] <[email protected]> On Behalf Of 9h1kr via groups.io
Sent: 19 January 2025 19:37
To: [email protected]
Subject: Re: [ic7000] Dim display or white light break through

?

Hi, have same issue with right hand edge brightness of the screen, was wondering if it is a common issue apart from hf o/p pa's blowing out.
73

?

On Sun, 19 Jan 2025 at 20:27, Andrew Lenton

<a@...> wrote:

Hi,

?

I have had two units with a dim display and one where the there is white light break through on the right hand edge, is? a replacment display the cure? what else could cause this?

?

what does the -15V do and the +12 V do from the BUK converter, PS I have had a few 100?H inductors die (in the Buk inverter) , but this will effect switch on.

?

73

?

Andrerw G8UUG


 

开云体育

Hi I have found the fault on the IC7000, it turns out to be a faulty inductor L51 near Q51 in the BUK converted that generates (or not) the 12V for the display, parts are on order.

?

73

?

Andrew

?

From: [email protected] <[email protected]> On Behalf Of 9h1kr via groups.io
Sent: 21 January 2025 05:08
To: [email protected]
Subject: Re: [ic7000] Dim display or white light break through

?

Hi Andrew,

?

I came across a Ic-7300 at a very good price and kept on working like nothing happened, came by at the right time too.?

?

I'm think about sourcing the pa's first for the ic-7000, otherwise the vhf/uhf bands work fine, and as for hf reception comparison with the 7300 I find it better for filtering out weak signals imho!

73 de 9H1KR

?

?

On Mon, 20 Jan 2025 at 11:13, Andrew Lenton

<a@...> wrote:

Hi not sure it is common, fault but through it out there, did you fix it?

?

KR

?

Andrew

?

From: [email protected] <[email protected]> On Behalf Of 9h1kr via groups.io
Sent: 19 January 2025 19:37
To: [email protected]
Subject: Re: [ic7000] Dim display or white light break through

?

Hi, have same issue with right hand edge brightness of the screen, was wondering if it is a common issue apart from hf o/p pa's blowing out.
73

?

On Sun, 19 Jan 2025 at 20:27, Andrew Lenton

<a@...> wrote:

Hi,

?

I have had two units with a dim display and one where the there is white light break through on the right hand edge, is? a replacment display the cure? what else could cause this?

?

what does the -15V do and the +12 V do from the BUK converter, PS I have had a few 100?H inductors die (in the Buk inverter) , but this will effect switch on.

?

73

?

Andrerw G8UUG