| Author |
Message |
    
Yaesujohn
Junior Member
Username: Yaesujohn
Post Number: 17
Registered: 9-2005
| | Posted on Wednesday, December 06, 2006 - 5:07 am: | 
|
Got a Cobra 2010 base that I'm working on for a buddy. The radio is 5kc low on both transmit and receive, and it's not just the display being off. I can turn the clarifier knobs all the way to the right and get the receive on freq, but the transmit is still off. I know I can unlock the clarifier and get the receive and transmit back together so that the radio will be usable, but if you're trying to talk to someone who happens to be 5kc or more high, you'll never be able to tune them in. I'm hoping someone can tell me where to find the alignment info on this or any other Uniden 8719 chassis such as the Cobra 2000 so I can get this thing back on freq.
Thanks! |
Tech808
Moderator
Username: Tech808
Post Number: 12457
Registered: 8-2002
| | Posted on Wednesday, December 06, 2006 - 5:43 pm: |
|
COBRA-2010 ALIGNMENT
Reading Point Condition Adjustment Procedure
PLL ALIGNMENT PROCEDURE
TP1 L37 5.1 Volt +/- 50mV on DC VoltMeter
TP3 AM 27.185MHz L38 Maximum on Oscilloscope
OSCILLATOR ALIGNMENT PROCEDURE
TP2 AM 27.185MHz L39 10.6950MHz on Frequency Counter
TP2 USB 27.185MHz L40 10.6925MHz on Frequency Counter
TP2 LSB 27.185MHz L41 10.6975MHz on Frequency Counter
IC201 Pin1 L46 4.500000MHz on Frequency Counter
Q102 Base CT10 10.240MHz on Frequency Counter
RV50 TX Frequency Set. (CPU-Board)
RECEIVER ALIGNMENT PROCEDURE
TP8 USB 27.185MHz L30 Maximum on Oscilloscope
TP8 USB 27.185MHz L31 Maximum on Oscilloscope
TP8 USB 27.185MHz L32 Maximum on Oscilloscope
TP8 USB 27.185MHz L33 Maximum on Oscilloscope
TP8 USB 27.185MHz L34 Maximum on Oscilloscope
TP4 USB 27.185MHz L35 Maximum on Oscilloscope
TP4 USB 27.185MHz L36 Maximum on Oscilloscope
IC7 Pin1 FM 27.185MHz L47 Maximum on Oscilloscope
IC7 Pin1 FM 27.185MHz L16 Maximum on Oscilloscope
IC7 Pin7 FM 27.185MHz L17 Maximum on Oscilloscope (FM Discriminator)
TRANSMITTER ALIGNMENT PROCEDURE
TP5(+) - TP6(-) Remove CONN 1 RV9 35mA on DC Amperemeter
TP5(+) - TP7(-) Remove CONN 1 RV8 85mA on DC Amperemeter
RF Power TX AM 27.185MHz L42 Maximum on RF PowerMeter
RF Power TX AM 27.185MHz L43 Maximum on RF PowerMeter
RF Power TX AM 27.185MHz L44 Maximum on RF PowerMeter
RF Power TX AM 27.185MHz L45 Maximum on RF PowerMeter
RF Power TX AM 27.185MHz L48 Maximum on RF PowerMeter
RF Power TX AM 27.185MHz L8 Maximum on RF PowerMeter
RF Power TX USB 27.185MHz RV14 Set RF Power to 16 Watt
RF Power TX AM 27.185MHz RV4 Set RF Power to 10 Watt
Hope this help's,
Lon
Tech808
CEF808
N9CEF
CVC#2 |
Kid_vicious
Senior Member
Username: Kid_vicious
Post Number: 2338
Registered: 9-2004
| | Posted on Wednesday, December 06, 2006 - 5:50 pm: |
|
the alignment that lon gave is not for the 2010 that you have.
you have the MB8719 version, and the alignment is the same as for the 2000gtl. pretty much.
here is a link to the alignment procedure:
http://www.copperelectronics.com/cgi-bin/discus4/show.cgi?tpc=34&post=113535#POST113535
good luck,
matt |
