Question about ViewSonic G790 19" CRT Monitor

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G790 HV xformer wanted.

Are parts (HV xformer) available for G790 19" CRT?

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Yes, purchase it from company or change the part with some other parts

Posted on Jan 26, 2008


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Sony KP51W40 Blue tube flashes

I do not think the old tube rejuvenator will do much if the HV is arcing. The CRT it might leaking some coolant or some moisture from it is causing the arcing.
I would suggest to read the info from this website to re-seal it or replace the coolant.
Let me know if you need further assistance.

Apr 21, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

RCA 32V434T Changed recomended part: New Problem

Was the xformer RCA, new in the box ?.........

The silicon rubber seal is to moisture entry. Do not re-apply.
Make sure your connection is good.......

Did you hook-up signal to verify no sound ?

NSNP , HV ok = something wrong other than xformer....

Check all power supply voltages.....................T.

Check top of electrolytic caps for expanded,bulged or
what techs call "pooched".....................

Apr 17, 2008 | Televison & Video

1 Answer


your monitor CRT gone bad.

Jan 20, 2008 | ViewSonic G790 19" CRT Monitor

1 Answer

Da?±a el transistor horizontal


El transistor de salida horizontal es un 2SC5331 (Q303). Por favor también compruebe el transformador Flyback (FEA661).

Estará bien comprobar también Q103 (IRF740) que es el regulador de recorrido HV. En algunos casos, D123 defectuoso en el recorrido G1 puede causar el HOT a corto.

Un diagrama esquemático / manual de servicio está disponible aquí.

Tengo que hacer el uso de trnaslator en línea para contestar a su problema.

Buena suerte y saludos cordiales.

Jan 04, 2008 | ViewSonic G790 19" CRT Monitor

1 Answer

Monitor cable

Aarti Services
Flat No-2, C.J Apartment
Kandivali (w)

Dec 27, 2007 | ViewSonic G790 19" CRT Monitor

1 Answer

Proper grounding point for RCA F32650 TV

Leave set unplugged for a few hours = HV gone or discharge to CRT ground strap........................

Note: Part list.....257805 or ASTI 2078 xformer and
237470 horiz output xistor ( Do not use generic)
transistor must be first quality, no seconds ! !

Nov 25, 2007 | RCA F32650 32" TV

1 Answer

Need help finding replacement monitor cable

what color are the ends of the cables, blue you need a vga cable, white a DVI cable- there are two types of dvi cables look at the connector if it has a plus sign in it you need a dual link otherwise a single.

Oct 26, 2007 | ViewSonic G790 19" CRT Monitor

1 Answer


HV Splitter ==  258512   (uncommon failure)


IHVT (flyback xformer) == 258655    (common failure)


Gave you both #'s just in case.

Oct 18, 2007 | RCA HD52W58 52" TV

3 Answers

Arcing around neck board

sounds like bad crt if you saw arc inside economical fix-replace the monitor

May 30, 2007 | Likom ViewMate LP995 (White) 19 in.CRT...

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