Well while im waiting on parts I decided to look at my RCI2995 again. Im noticing on my friends he gets 4.5Vdc on TP7 that supplies 4.5Vdc to TP 8 and 9. Im only getting 2.4Vdc on mine?
My radio sounds like its keying, the fan speeds up the "ON AIR" & "TX" light up but I get NO POWER or MODULATION on all MODES but the PA works and sounds great.
Checked a few points for power
Q60 Collector (middle post) has 2.4V, Q62 has 2.4V Collector (middle post)
Q66 has Base 13.2Vdc RX and 13Vdc TX, Collector 2.3Vdc RX and 0Vdc TX, Emitter 13.7Vdc RX & TX
IC7 1)13.6Vdc, 2)6.45Vdc, 3)0, 4).85Vdc, 5)1.4Vdc (#5 speaker hums)
Q51 Base 13.6Vdc, Collector 8.8Vdc, Emitter 13.9Vdc
Test Strip:
AF I/P 0Vdc
AF O/P 0Vdc
GA 0Vdc
SQ 0-4Vdc
8V O/P 8.7Vdc
PTT 8.7Vdc
GND 0Vdc
MOD I/P 4.3Vdc
MOD O/P 4.6Vdc
TEST Points in Vdc: RX only
1) 0
2) ? Cant locate
3) 0
4) ? Cant locate
5) 8.1
6) 0
7, 8, 9) 2.4
10) 1.7
11) 2.3
12) 2.4
13) 0
14) 0
15) 2.3
16) 2.3
17) 0
Were does power for TP7 receive its power from?
My radio sounds like its keying, the fan speeds up the "ON AIR" & "TX" light up but I get NO POWER or MODULATION on all MODES but the PA works and sounds great.
Checked a few points for power
Q60 Collector (middle post) has 2.4V, Q62 has 2.4V Collector (middle post)
Q66 has Base 13.2Vdc RX and 13Vdc TX, Collector 2.3Vdc RX and 0Vdc TX, Emitter 13.7Vdc RX & TX
IC7 1)13.6Vdc, 2)6.45Vdc, 3)0, 4).85Vdc, 5)1.4Vdc (#5 speaker hums)
Q51 Base 13.6Vdc, Collector 8.8Vdc, Emitter 13.9Vdc
Test Strip:
AF I/P 0Vdc
AF O/P 0Vdc
GA 0Vdc
SQ 0-4Vdc
8V O/P 8.7Vdc
PTT 8.7Vdc
GND 0Vdc
MOD I/P 4.3Vdc
MOD O/P 4.6Vdc
TEST Points in Vdc: RX only
1) 0
2) ? Cant locate
3) 0
4) ? Cant locate
5) 8.1
6) 0
7, 8, 9) 2.4
10) 1.7
11) 2.3
12) 2.4
13) 0
14) 0
15) 2.3
16) 2.3
17) 0
Were does power for TP7 receive its power from?