previous by date | index | next by date |
previous in topic | topic list | next in topic |
> sorry for late snswer, and sorry because I lost Your reply message.For some reason Google Docs won't let me view those images.
> But I do what You suggested ,and You were right, it is not
> LM348 problems.
>
> I try to check all Power Supply Volts.
>
> 1 ) I adjust the 5 Volt trim in Power Supply Board, because I
> measured 4,75 Volt ( Set to 5,00 )
>
> 2 ) DC OK volt is easy to set, just turn the P.S. Trm andthe
> P.S led light .
> I measured the Volt for the DC OK and it is 2,95 V .
> If i try to turn the trim V2,95 remain the same.
>
> 3) I do all the adjustnente as requested , But Master Volume
> Led not turn ON ,
>
> 4) Isee the new Jack in the Phone/Hi/low Exit connected BAD.
> as in the schematics I see The insulated Jack are bad
> connected ,in fact YELLOW cable goes to the Jack GND !!!!!
> This mistake I think was made at Italy fender Repai
> centre " Casale Bauer " where They update the Firmware to REV 8.0
> I try to fix this problem , and Polaris ,start to play
> again , but MASTER volume Do not WORK .
> Started to hear pushbuttons click at first, and
> magically after few minutes Polaris starts playing.
> after few minutes Polaris Stop Playing. Mamma Mia
> !!!!!!!!!!!!!!!!!!!!!
> Do You think it is Bad Jack Output Connections ?
> https://docs.google.com/file/d/0B2RFytG_u-I5V2NMUlhQSmZ1SVE/edit
>
> https://docs.google.com/file/d/0B2RFytG_u-I5bVdMa1dpbUNTeFk/edit
>
> As You see in these photos the jack were connected with GND
> in the Signal place !!!
>
> 5) I'm waiting to finish to test the GND in Polaris
> circuitry, I ask a friend HAM, expert in repairing HF radio (
> DRAKE Collins, .) to better do the job.