Canon DM-MV20E mini-dv camera problem

[David]

Hi All,

I'm attempting to repair the above model camera.

The initial problem with the camera was that it wouldn't zoom using the
camera control. After spending time on the camera, I have come to the
conclusion that fault is not confined to the zoom switch.

There is a pcb on the outer side of the cassette door which is protected by
an outer rubber cover. This PCB doesn't appear to be working (pcb is about
1.5" in size). Another reason for this diagnosis is that the camera
constantly asks for the timezone etc to be reset whenever the rechargeable
battery is taken off the camera. On the PCB there is a lithium battery
which is measuring 2.6v (I'm not sure if that is the voltage that it should
be), a manual focus control with an LED and another function button. None
of these buttons appear to be working. I can't see any obvious cracks in
the printed cable that runs from the small PCB into the main camera pcb.
The printed able is reinforced in one section so that the cassette door can
open without bending the cable too much, this also appears to be ok.

Has anyone encountered this problem before?

Any points would be greatly appreciated

 

[Rudolf Ladyzhenskii]

Did you (or customer) drop the camera?
I would check that all connectors are sitting in properly and all flexible
cables are OK. It is worth simply pulling them out and plugging back in.
This wil clean the contacts and may help with your problem. Also check power
supply section, may be one of the fusable resistors/fuses went.

Rudolf

"David" <privateguy@telstra.com> wrote in message
news:cfa4rh$ldp$2@perki.connect.com.au...

Hi All,

I'm attempting to repair the above model camera.

The initial problem with the camera was that it wouldn't zoom using the
camera control. After spending time on the camera, I have come to the
conclusion that fault is not confined to the zoom switch.

There is a pcb on the outer side of the cassette door which is protected
by
an outer rubber cover. This PCB doesn't appear to be working (pcb is
about
1.5" in size). Another reason for this diagnosis is that the camera
constantly asks for the timezone etc to be reset whenever the rechargeable
battery is taken off the camera. On the PCB there is a lithium battery
which is measuring 2.6v (I'm not sure if that is the voltage that it
should
be), a manual focus control with an LED and another function button. None
of these buttons appear to be working. I can't see any obvious cracks in
the printed cable that runs from the small PCB into the main camera pcb.
The printed able is reinforced in one section so that the cassette door
can
open without bending the cable too much, this also appears to be ok.

Has anyone encountered this problem before?

Any points would be greatly appreciated

 

[David]

The camera wasn't dropped, the zoom etc just stopped working.

I can't see any obvious breaks in the printed cable.

"Rudolf Ladyzhenskii" <rudolfl@optusnet.com.au> wrote in message
news:4118d1d2$0$16107$afc38c87@news.optusnet.com.au...

Did you (or customer) drop the camera?
I would check that all connectors are sitting in properly and all flexible
cables are OK. It is worth simply pulling them out and plugging back in.
This wil clean the contacts and may help with your problem. Also check
power
supply section, may be one of the fusable resistors/fuses went.

Rudolf

"David" <privateguy@telstra.com> wrote in message
news:cfa4rh$ldp$2@perki.connect.com.au...
Hi All,

I'm attempting to repair the above model camera.

The initial problem with the camera was that it wouldn't zoom using the
camera control. After spending time on the camera, I have come to the
conclusion that fault is not confined to the zoom switch.

There is a pcb on the outer side of the cassette door which is protected
by
an outer rubber cover. This PCB doesn't appear to be working (pcb is
about
1.5" in size). Another reason for this diagnosis is that the camera
constantly asks for the timezone etc to be reset whenever the
rechargeable
battery is taken off the camera. On the PCB there is a lithium battery
which is measuring 2.6v (I'm not sure if that is the voltage that it
should
be), a manual focus control with an LED and another function button.
None
of these buttons appear to be working. I can't see any obvious cracks
in
the printed cable that runs from the small PCB into the main camera pcb.
The printed able is reinforced in one section so that the cassette door
can
open without bending the cable too much, this also appears to be ok.

Has anyone encountered this problem before?

Any points would be greatly appreciated