[TechAssist] Re: [Fwd: HP 20" monitor A4431A, fcc# AK8GDM20F03 (SCC-J44D-A) instant shut down]
- From: "Patrick Fugere" <p_fugere@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 3 Nov 2001 09:20:50 -0500
your problem is B+.
It is not regulated. you must have a 200V going to the collector of the HOT
instead of the normal 50~80 volts. Since the B+ is to High, X ray shuts the
unit down.
There is a FET providing the B+. Just follow the collector line or PIN 2 of
flyback.
On these models there could be 2 outputs;1 for HT and one for deflexion.
Both have B+ regulators. Check both.
Pat Fugere
F u j i s t i c s
Montreal, Canada.
p_fugere@xxxxxxxxxxxx
----- Original Message -----
From: "Phil Bader" <philbad@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, November 02, 2001 6:16 PM
Subject: [TechAssist] [Fwd: HP 20" monitor A4431A, fcc# AK8GDM20F03
(SCC-J44D-A) instant shut down]
>
>
>
> -------- Original Message --------
> Subject: HP 20" monitor A4431A, fcc# AK8GDM20F03 (SCC-J44D-A) instant
> shut down
> Date: Fri, 02 Nov 2001 18:15:48 -0500
> From: Phil Bader <philbad@xxxxxxxxxx>
> Organization: Jan Phyl TV Inc. Winter Haven, Fl. Estab. 1976
> To: "ELREPAIR-L@xxxxxxxxxxxxxxxxxxxx" <ELREPAIR-L@xxxxxxxxxxxxxxxxxxxx>
>
> Push power,hear ADG surge, front power LED green,hear HV come up and
> instant shut down,front power LED goes out, LED next to it flashes
> amber. TIA< Phil
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