Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: brock.sampson on March 18, 2009, 02:57:02 pm

Title: Hanatarex 9110 repairs
Post by: brock.sampson on March 18, 2009, 02:57:02 pm

I had a local guy try to repair my mtc9110.  It had a solid line across the screen when I gave it to him.  He replaced the flyback and vertical ic.  When he tried to power it up something was smoking.  He said the tube might have a short in it or a resistance problem.  He wasn't real interested in going much further and found another used 25" monitor.  Is there a way to test this before I try to get this repaired by someone else?

Title: Re: Hanatarex 9110 repairs
Post by: qrz on March 18, 2009, 10:30:53 pm

suggest good lighting and perhaps magnification to locate burnt component(s)
what and circuit location will dictate how to proceed.

loss of vert generally does not require a flyback replacement.  why he did   :dunno

qrz

Title: Re: Hanatarex 9110 repairs
Post by: brock.sampson on March 19, 2009, 08:18:55 pm

I'm not sure either.  Is there an easy way to test the crt for a short before I send this off to get repiared by someone else?

Title: Re: Hanatarex 9110 repairs
Post by: qrz on March 19, 2009, 10:04:24 pm

what is the symptom that you believe indicates a shorted tube ? 

a second anode short will put the anode voltage on the pins - and can produce quite the light show - BZZZT  !!
a hk short will produce a bright single color w/retrace
all three guns w/hk short will give white w/retrace .
purple/blue glow, arcing in the tube ....


qrz

Title: Re: Hanatarex 9110 repairs
Post by: brock.sampson on March 19, 2009, 10:10:24 pm

I haven't plugged it in since I got it back from the guy.  That was his diagnosis.  Should I try and plug it in and see if I get any of these symptoms?  I don't know if this guy didn't have the skill or didn't want to invest the time to troubleshoot the actual problem.  I might just discharge the crt a couple times and send the chassis to arcadecup.com for repair.

Title: Re: Hanatarex 9110 repairs
Post by: qrz on March 20, 2009, 02:24:55 pm

if he wasn't an experienced servicer , it may have been a little of both.  ;)
although i know of some tv techs that won't touch a game monitor. 
which , i find amusing as there really isn't much difference from a tv ...  :laugh2:

do try to find the alledged burnt part before u fire it up .
and/or just be ready to kill it - quick ......................................... :blowup:

loss of vert may have just been the output ic , diode(s) perhaps a fused resistor, caps
a discrete output has more components ( transistors ) but , essentially the same
type of failures.

qrz