Hi
Just had a 3900 with the crappy ept360015c board turn up here with little output power. The meter doesn't swing when put into tx. Not enough power to move my power meter on the 20w setting (thats as low as it goes!) Outputs are IRF520n's which i think if they were gone the radio would blow the fuse as they go short circuit? (correct me if i'm wrong!) No obvious signs of burnt tracks etc... Any ideas where to start?
superstar 3900 ept360015c output issue
- slamjam
- Radio Addict
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- Joined: 02 Nov 2010, 18:52
- Call Sign: 26DT871
- Location: Suffolk JO02
superstar 3900 ept360015c output issue
26DT871 - Ipswich UK
- cb4ever104
- Legend
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- Location: España
Re: superstar 3900 ept360015c output issue
I'd probably start from "HERE" with a scope or RF probe .
Sammy
Sammy
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30TM060
Paul aka "Sammy". (108) PY60 Old Paisley DX Group (RIP Rab Markie)
Ex GM0 , now EA5 .
Handle "Fortune Hunter" back in "the day"
Radios ....? Anything that says "TAIWAN R.O.C" on the back.
Paul aka "Sammy". (108) PY60 Old Paisley DX Group (RIP Rab Markie)
Ex GM0 , now EA5 .
Handle "Fortune Hunter" back in "the day"
Radios ....? Anything that says "TAIWAN R.O.C" on the back.
- slamjam
- Radio Addict
- Posts: 749
- Joined: 02 Nov 2010, 18:52
- Call Sign: 26DT871
- Location: Suffolk JO02
Re: superstar 3900 ept360015c output issue
humm I think this one may be beyond me Sammy. Off to the local rig doctor I think!!
26DT871 - Ipswich UK