realistic trc 449
realistic trc 449
I have a realistic trc 449, pcb# pc 176bd, with a 858pll.
no transmit on am & ssb.
it receives on upper & lower ssb, but not on am.
No in coming signal on the meter on am.
it has in coming signal on ssb.
I hear the relay working.
no output movement on the meter when i key the mic.
a brown wire with a red & white wire with sheild came off. i was trying to put on a wattage control were the r f gain was. and it shorted out . i need to know were to put the wires back. please help!!! galaxy
no transmit on am & ssb.
it receives on upper & lower ssb, but not on am.
No in coming signal on the meter on am.
it has in coming signal on ssb.
I hear the relay working.
no output movement on the meter when i key the mic.
a brown wire with a red & white wire with sheild came off. i was trying to put on a wattage control were the r f gain was. and it shorted out . i need to know were to put the wires back. please help!!! galaxy
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- Technical Helper
- Posts: 331
- Joined: Sunday 21st Jan 2007, 16:35
- Location: mississippi
-
- Technical Helper
- Posts: 331
- Joined: Sunday 21st Jan 2007, 16:35
- Location: mississippi
hello,most likely you are missing one or more of your branch voltage at the p.s.b..check tr-41.first check voltages at tr-41,and let me know your findings.more than likely youll find tr-41 either o/s.but give me your voltage readings at tr-41,and then we will proceed from there.tr-41 is a 2sc 945aq.emitter should be 8.16 in am and 0 in ssb.base should be 8.71 in am.and collector should be 9.31 v.d.c.
trc 449
on am i'm not getting 8.16 im getting 2. on ssb looks good im getting 8.+ on the collector on am its low, but on ssb it looks good. (i for got this) on ssd everyone sounds like donald duck... thanks galaxy
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- Technical Helper
- Posts: 331
- Joined: Sunday 21st Jan 2007, 16:35
- Location: mississippi