I'm trying to bring my new (to me) IC-7000 back to life.? It seems that the previous owner had connected the CIVE line to some voltage source other than ground.? Both ferrite beads between the connector and the logic board had ruptured.? For the time being, I bypassed them with wire.? I plan to go back in and install the proper beads if I can get the radio to work otherwise.
The MAIN PCB layout differs a bit from the one in the service manual:? One of the ferrite beads is between the REMOTE and VIDEO connector instead of between the REMOTE and RTTY connectors.
As I organized the various clips and connectors during PCB re-installation, I noticed that FL1501 is rectangular and black, not a metal can as shown in the service manual and other inside views I've found on the internet.? The part number is M3565M, for which I was able to find a datasheet on the internet.? It's a TV filter that separates out the video from the audio signals.? The service manual's parts list says the part should be
WFSTSB6321D [Others] or WFSTSB6221D [USA].
The block diagram calls it
TSB6221D except [UK] or TSB6322C [UK].
The schematic calls it
TSB6321D [Others]? or TSB6221D [USA]
which agrees with the parts list other than the "WFS" prefix.
I haven't been able to find a datasheet for any of these on the internet.
Is this a factory change?? Or a modification by the previous owner?? Does it matter if I don't use the radio to receive video transmissions?
Thanks!
Halden VE7UTS
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