Fluke 123 scopemeter Repair

[Raymond]

Hello there..
I have a scopemeter 123 who is acting not okey.

Wen i select continuous mode it start to buzz wen i put the probe a + com togehter it stops chiming it does not measuring cap mode and ohms.

Wen i put the test leads in the wall from channel a and the com port i get the right readings 227v and showing a 50hz trace. Besides that nothing seems to work. Either i do not hear the clicking of the relays path ways

I dont know what the do with this little boy but they seems to blew it good..

Things i did check.
Thermal protection ptc's
The protection circuit. The diodes and the fusable resistors


The reference circuit its showing the right value.
From the service manuals.
I hope there is some with a kind of this experiences who can give a tip where to look for i really lost in this tiny parts who calls (smd)

Thank you so much for your time
Take care
Raymond
From Holland

[Nivlek]

I know that this is an old post , but I have a Fluke 123 with a similar issue . Did you ever find the problem ?