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 Black out lcd & power fail .

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Alan Pilot
Les-1
Mavic2Pro
Pauline Flynn
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Pauline Flynn
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Call Sign : 26-CT-4951
Posts : 65
Times Thanked : 0
Join date : 2023-09-12
QTH or Location : Malvern Worcester
Equipment Used : Thunderpole T 2000
Age : 59

Black out lcd & power fail . Empty
PostSubject: Black out lcd & power fail .   Black out lcd & power fail . Icon_minitimeTue Oct 03, 2023 1:56 pm

Hello. 
I have a ss9900,  as I was transmitting , the lcd went black and the power momentarily went of & came back on,  what would cause this ?
The radio is new, ive run it on a 13.8 v and checked all connections. 

It's homebased. I've been advised that I need a 30amp power supply.  This has happened twice,  would like a second opinion please.
Many thanks 😊

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Mavic2Pro
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Call Sign : 26-CT-4634
Posts : 28
Times Thanked : 0
Join date : 2022-07-27
QTH or Location : Clacton
Equipment Used : Super Star 3900 (2023),Yaseu FT-450D, Uniden Uniace 200, Audioline PT-341, CRT SS6900 V V7, Astatic 575-M6 Teardrop, Uniden 125xlt, Baofeng UV-5rIII, Malachite SDR, Realistic Pro 2006. Sirio 5/8 Gainmaster, Procomm PT-99
Age : 62

Black out lcd & power fail . Empty
PostSubject: Re: Black out lcd & power fail .   Black out lcd & power fail . Icon_minitimeTue Oct 03, 2023 2:20 pm

Hi Pauline.

I have a CRT6900V - The SS9900's baby brother. I was running this using a 10amp power supply, and if I turned it up to the full 40watts on FM and keyed up, the 6900's display would dim. The SS9900 does 50 watts - so I would definitely say go for a minimum of a 30amp regulated power supply.

I now have a 40amp Nevada regulated power supply that powers the 6900, a superstar 3900 and a pre-amp. No more troubles with the displays dimming.

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Pauline Flynn
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Call Sign : 26-CT-4951
Posts : 65
Times Thanked : 0
Join date : 2023-09-12
QTH or Location : Malvern Worcester
Equipment Used : Thunderpole T 2000
Age : 59

Black out lcd & power fail . Empty
PostSubject: Re: Black out lcd & power fail .   Black out lcd & power fail . Icon_minitimeTue Oct 03, 2023 3:11 pm

Thank you 🙂

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Les-1
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Les-1


Call Sign : 26CT739 / 26GB739
Posts : 59
Times Thanked : 7
Join date : 2019-07-16
QTH or Location : Forest of Dean, Gloucestershire
Equipment Used : Superstar 3900n, Magnum S9, Cobra 148 GTL DX, Superstar 360 FM, Nato 2000, Lafayette 1200, Hygain V, Albrecht AE2990AFS, Cobra uk29 LTD ST, York jcb 863, York jcb 861, Uniden Uniace 200, Midland 4001, RM KLV550, RM KL400, Zetagi B300P, Sirio GainMaster, T2LT, 7' Firestik, Atron99, 18' Silver rod, Sadelta Echo Master plus, Astatic echomax 2000, Moonraker power mic
Age : 58

Black out lcd & power fail . Empty
PostSubject: Re: Black out lcd & power fail .   Black out lcd & power fail . Icon_minitimeTue Oct 03, 2023 3:33 pm

Hi Pauline, I run a 50 amp with no problem, plenty of powerBlack out lcd & power fail . Maas_s10 
These do come under other names too if pennies allow

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Alan Pilot
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Alan Pilot


Call Sign : 163-CT-220...
Posts : 2555
Times Thanked : 69
Join date : 2019-11-19
QTH or Location : Anglesey North Wales
Equipment Used : Yaesu FT-991A,,Yaesu FTDX-10,,Icom ic-7300,,Anytone AT-D878UV PLUS",,LINCOLN II+.
Age : 15

Black out lcd & power fail . Empty
PostSubject: Re: Black out lcd & power fail .   Black out lcd & power fail . Icon_minitimeTue Oct 03, 2023 3:56 pm

Took me a while but found a picture of my power supply.
60amp runs all my HF gear plus my lighting and heating well powers he diesel heater i heat the shack with.
Main output terminals at the rear on this one.
Black out lcd & power fail . Psu_sh10

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Pauline Flynn
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Call Sign : 26-CT-4951
Posts : 65
Times Thanked : 0
Join date : 2023-09-12
QTH or Location : Malvern Worcester
Equipment Used : Thunderpole T 2000
Age : 59

Black out lcd & power fail . Empty
PostSubject: What make? & where from please?   Black out lcd & power fail . Icon_minitimeTue Oct 03, 2023 4:09 pm

Les-1 wrote:
Hi Pauline, I run a 50 amp with no problem, plenty of powerBlack out lcd & power fail . Maas_s10 
These do come under other names too if pennies allow
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Les-1
10 + Year member
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Les-1


Call Sign : 26CT739 / 26GB739
Posts : 59
Times Thanked : 7
Join date : 2019-07-16
QTH or Location : Forest of Dean, Gloucestershire
Equipment Used : Superstar 3900n, Magnum S9, Cobra 148 GTL DX, Superstar 360 FM, Nato 2000, Lafayette 1200, Hygain V, Albrecht AE2990AFS, Cobra uk29 LTD ST, York jcb 863, York jcb 861, Uniden Uniace 200, Midland 4001, RM KLV550, RM KL400, Zetagi B300P, Sirio GainMaster, T2LT, 7' Firestik, Atron99, 18' Silver rod, Sadelta Echo Master plus, Astatic echomax 2000, Moonraker power mic
Age : 58

Black out lcd & power fail . Empty
PostSubject: Re: Black out lcd & power fail .   Black out lcd & power fail . Icon_minitimeTue Oct 03, 2023 5:16 pm

Same as mine just under different name on fleabay

50 amp power supply

or if not on fleabay these below (just a few for you)

sharman 50

QJE 50

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Sharpshooter
Major contributor
Major contributor
Sharpshooter


Call Sign : 163-CT-329
Posts : 485
Times Thanked : 13
Join date : 2022-04-05
QTH or Location : Deeside, Flintshire
Equipment Used : A growing list

Black out lcd & power fail . Empty
PostSubject: Re: Black out lcd & power fail .   Black out lcd & power fail . Icon_minitimeTue Oct 03, 2023 6:00 pm

The CRT 9900 draws 12 amps on tx according to the manufacturer.
So you ideally need a 15 amp constant power supply minimum to run it.


Alan pilot advised you to get a 30 amp power supply to cover you for any future purchases of ham radio that require more amps.
Not because you need that much for that radio.

I don't know how much knowledge you have on the subject and you may be getting confused with information overload whilst learning .
So to sum up.
They all run on 13.8 volts
They will all power up on a 13.8 volt power supply even one as low as say 3 amp.
It's when you transmit and need to draw more power that the problems start.
A normal CB with 4 watt output power will transmit on a 3 watt PS but most people will probably use a 5watt - 7 watt surge.
A CRT 9900 putting out 50 or 60 watts needs a 12 watt PS so a 15 watt is needed minimum or a 20 watt to be safer.

Think of a little 1000 cc (1 ltr) car driving flat out at 100 mph, it'll blow the engine sooner or later.
A 3000 cc (3 ltr) could cruise at 100mph.

30 amp is more than enough for your 9900
👍🏼

It won't be struggling to run your radio and it will future proof you for ham radio in the future.

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Pauline Flynn
Contributor
Contributor



Call Sign : 26-CT-4951
Posts : 65
Times Thanked : 0
Join date : 2023-09-12
QTH or Location : Malvern Worcester
Equipment Used : Thunderpole T 2000
Age : 59

Black out lcd & power fail . Empty
PostSubject: Re: Black out lcd & power fail .   Black out lcd & power fail . Icon_minitimeTue Oct 03, 2023 6:58 pm

I am a newbie , 80's 90's cb , getting back into cb , re learning, never had a homebase.
As I am learning I do get confused with info, and ask for a second opinion.
Alan has given me much needed information, I've been advised 20,30, 50 amp .
Thank you for your explanation. 🙂

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peewee norfolk
Senior contributor
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peewee norfolk


Call Sign : 26-CT-4879 / M7PCA
Posts : 187
Times Thanked : 8
Join date : 2023-07-16
QTH or Location : North Walsham, JO02QU
Equipment Used : FT1000MP !!!!!!binatone 5*,alinco dx10 135,sirio4000,silver rod,G5RV,beofeng 17 pro max, X30 duel 2m/70cm,full size G5RV, TS120v,soon new toy
Age : 56

Black out lcd & power fail . Empty
PostSubject: Re: Black out lcd & power fail .   Black out lcd & power fail . Icon_minitimeTue Oct 03, 2023 7:11 pm

well i have 30A psu now,ready for the ham licence being hopefull !!!!
buy the best you can get as Alan said, because by the sound if it you have the dredded RADIO BUG !!!!!
it gets us all in the end.......
got mine of Gumtree all working fine even on full power, but never use full power (radio) more qrp see how far i can get
any probs or questions put up on here Pauline, they are a real great bunch !!!!! best thing i ever joined,advice,help,pics,chat,contacts etc etc......leaned loads from here reading through the posts, hope to catch you on air one day, good luck and keep on keying that mic !!!!!

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skyrider
Major contributor
Major contributor



Call Sign : 26-CT-4654
Posts : 359
Times Thanked : 2
Join date : 2022-09-25
QTH or Location : Preston, Lancs.
Equipment Used : UNIDEN 100, midland alan 78 plus multi + mag mount , silver rod
Age : 64

Black out lcd & power fail . Empty
PostSubject: Re: Black out lcd & power fail .   Black out lcd & power fail . Icon_minitimeTue Oct 03, 2023 8:13 pm

yes i had a 5 amp with a7 amp surge and Alan on here said it would probably be ok to power a light bulb i needed a proper  one so i scanned fleabay and found a QJE 30 amp and i have been happy ever since

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MM0IMC
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Call Sign : 108-CT-226 / MM0IMC
Posts : 88
Times Thanked : 2
Join date : 2023-03-10
QTH or Location : Ayrshire
Equipment Used : Amstrad 901 Sidebander

Black out lcd & power fail . Empty
PostSubject: Re: Black out lcd & power fail .   Black out lcd & power fail . Icon_minitimeMon Dec 25, 2023 10:18 pm

Could it be a bad connection in the power cable/fuseholder, etc? Any of these could cause the radio to power off and back on again...
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PostSubject: Re: Black out lcd & power fail .   Black out lcd & power fail . Icon_minitime

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