Codan 9323 help needed

**POD** · 22nd June 2024, 05:43 PM

I have a Codan 9323 remote-head HF set and 9350 auto-tune antenna. The radio is mounted to the rear bulkhead of the defender dual-cab. Last week I was driving on a rough road in torrential rain and the HF switched itself on. I believe there was water ingress into either the control head (most likely), the main radio unit or both. I stopped and switched it off; a few minutes later it switched on again. I left it on as it was raining hard and I didn't want to stop and walk around the car again in the pouring rain. The radio started to go through some failed tune cycles (the antenna whip was stowed and the auto-tune folded down, microphone stored separate to the radio), make general static noise etc. When I got home I went to switch it off and it would not respond to any control buttons. I left it until the next morning as it's a bit of work to access the power disconnect.
Next day I removed both the remote head and the main radio unit, took the covers off and made sure everything was dry, gave the boards a bit of a spray with electronic cleaning solvent, re-installed the radio and it lit up as soon as power was connected, the display has a start-up message (Codan logo and slogan) and there is no response to any of the control inputs.
Is anyone able to offer advice or direct me to someone who may be able to fix a 30-year old HF set?

**Tins** · 22nd June 2024, 08:06 PM

If water got into the remote head unit it might be worth checking if it has got between the button membrane and its board. No response to the buttons may be as simple as that.

**Tins** · 22nd June 2024, 08:09 PM

Of course, if you want to get technical... A good repair shop should be able to do something with that. There are still a few around, I know a couple around here.

**POD** · 23rd June 2024, 12:46 PM

The button membrane is firmly affixed to the front board, I don't know how much damage I might do by prising it off. My knowledge of electronics is VERY limited. The technical manual assumes a level of knowledge of this subject that I do not possess. When you say 'around here', where is that? Your address says 'The Hills' but that doesn't mean anything to me, I'm assuming it's not the Strezleckis or the Dandenongs?

**4bee** · 23rd June 2024, 12:54 PM

Originally Posted by POD

The button membrane is firmly affixed to the front board, I don't know how much damage I might do by prising it off. My knowledge of electronics is VERY limited. The technical manual assumes a level of knowledge of this subject that I do not possess. When you say 'around here', where is that? Your address says 'The Hills' but that doesn't mean anything to me, I'm assuming it's not the Strezleckis or the Dandenongs?

Certainly not the Adelaide Hills either.

**Tins** · 23rd June 2024, 04:41 PM

Originally Posted by POD

The button membrane is firmly affixed to the front board, I don't know how much damage I might do by prising it off. My knowledge of electronics is VERY limited. The technical manual assumes a level of knowledge of this subject that I do not possess. When you say 'around here', where is that? Your address says 'The Hills' but that doesn't mean anything to me, I'm assuming it's not the Strezleckis or the Dandenongs?

The Hills is a local name for the Dandenongs. Places I meant are in Boronia and Croydon.

**oka374** · 24th June 2024, 07:09 AM

Many many moons ago I used to install codan and Barrett HF's in all sorts of vehicles etc and the touch panels/membranes are a non repairable item, if you were to get it apart it would never be able to be used again anyway. Towards the end of my performing that job we had quite a few people with remote heads that either ended up being only able to control the unit from the actual transceiver if they had a touch panel on the actual radio or they bought a new radio. I gave up on my 8xxx series Codan and fitted a Barrett as they don't use the non repairable membrane type switches.
It might be that a long session of drying it out might sort it but it might also have gone to god.

**4bee** · 24th June 2024, 04:07 PM

Originally Posted by oka374

Many many moons ago I used to install codan and Barrett HF's in all sorts of vehicles etc and the touch panels/membranes are a non repairable item, if you were to get it apart it would never be able to be used again anyway. Towards the end of my performing that job we had quite a few people with remote heads that either ended up being only able to control the unit from the actual transceiver if they had a touch panel on the actual radio or they bought a new radio. I gave up on my 8xxx series Codan and fitted a Barrett as they don't use the non repairable membrane type switches.
It might be that a long session of drying it out might sort it but it might also have gone to god.

Would he/she know what to do with it or are they possibly technically challenged? Just asking for a friend you understand.

**oka374** · 24th June 2024, 04:53 PM

Get them to pull the remote apart and shove the touch panel in a bag of rice for a week or so, could also try parking it on a nice warm window sill in the sun during the day after that, you never know but it might come back to life. If they were the same tech as the earlier 8 series I wouldn't hold much hope though.

**POD** · 24th June 2024, 08:28 PM

I'll pull the remote head apart again and try giving it more drying time. First time around, i put it in the fan-forced oven set on about 120 degrees, with the door a few inches open to ensure it did not get overcooked. Left it like that for a couple of hours in the hope it would dry any trapped moisture.
At the back of the touch panel, when the remote head is dismantled, the rear of the touch button switches are accessible; if I put an ohm meter across those terminals, will an open or closed circuit reading be of any use? I obviously know very little about those things but am assuming that, electrically, they are a simple momentary switch?

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