[TechAssist] Panasonic 8" WV-BM80 4 input B&W security monitor, dead, fix
- From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: "techassist@xxxxxxxxxxxxx" <techassist@xxxxxxxxxxxxx>
- Date: Mon, 09 May 2005 16:32:04 -0400
I have the service book on the WV-BM500 and the PS looks identical.
Always in the center of the circuit board where there are the rectifiers
the bakelite board is cooked and two zeners are bad:
D4: YWRD5.6FB3 (5.6V ZENER)
D5: YWRD6.2FB1 (6.2V ZENER)
Also 4 caps in a row nwxt to them:
C10,11,12,13 all 47ufd@16V, change them all.
May have to use the diode leads to jumper the bad areas of board sort of
a=la bread board style.
Fixed.
BTW the camera that goes with it is a Panasonic WV-71 and must be
plugged into one of the three BNC camera inputs before powering on the
monitor or camera will not work. Maybe the monitor disables any unused
inputs...Plug in the camera, then power monitor up. Camera gets it's
power thru the coax.
Phil Bader
--
Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: tjanphyl@xxxxxxxxxxxxxxx
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