Hi,
Recently I bought CMU200 for a $300 plus $300 shipping, and I knew it wasn't completely correct.
It has next H/W options: B12, B17, B21v14, B41, B52v14, B54v14, B56v14, B66, B68, B96, PCMCIA.
It has U65.
Also noticed that RF1 has sticker 2W but it doesn't have U99 option?
SW: V5.12 FMR6 256MB
First, I noticed that some buttons don't work and thanks to forum members Bicurico and ps, connected external keyboard and mapped fault hotkeys.
Then I performed RF test using instrument SG and SA:
RF1 -> RF2
-30dbm -53dBm TX
-72dBm -72dBm AUXTX
RF2 -> RF1
-30dBm -53dBm TX
-72dBm -72dBm AUXTX
RF3OUT -> RF2
-30dBm -53dBm TX
-72dBm -72dBm AUXTX
RF2 -> RF4IN
-20dBm -92dBm TX
-60dBm -113dBm AUXTX
On a first shoot, it looks that one amplifier in TX stage is damaged, and RF4IN is damaged.
It seems that SA and AUXTX work. The question is where is damaged amplifier in TX stage: frontend or RXTX board1? ~20dB amplify could be one stage.
Next task will be connect CMU200 on external SA and SG.
Thanks,
Vojislav