JR XP652 Circuit Diagram ?

[Gaz]

I have been given a JR652 TX for repair from a freind, does anyone know where I can loacate a cct diagram for one ??
Gary.

[MAVA]

Gaz,

Well I got something you may be interested in, data sheet to the RF front-end.

I believe RF front-end IC is the same one used here in the USA. The IC is a TA7761.

Before I upload the Data sheet, confirm this is the Chip?

Martin

[Gaz]

Martin
Thanks for the reply, I think I should be right now I had another look at it last night.
It had reverse polarity applied because of a broken battery locating lug and would not power up, I went through and checked the voltage regulators which measured ok so I thought a cct diagram may be needed.
I decided to reset the CPU by momentarily shorting the backup battery and it then powered up fine.
He actually didn’t give me the RF board so I’ll have to get that and test the complete unit.

Gary

[hadihf]

Hi,
The Tx case should have an FCC ID number....make a search at FCC intenet site with it.
Regards