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Sony Vaio LCD flickering
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- ThinkPadder
- Posts: 1192
- Joined: Fri Mar 13, 2009 2:47 am
- Location: New Alexandria, Pennsylvania
Sony Vaio LCD flickering
I got a nice clean Sony Vaio tower model PCV-RS422 and the LCD is a Sony 18" SDM-M81. The screen didn't come with a AC Adapter and uses that 4 pin female adapter plug that the ThinkPad 755 era models used. I have a ThinkPad 760 one and using it, It outputs 20V-10V I just ordered a official Sony 18v Ac adapter now. When I have the screen plugged in VGA or DVI it will come on then start to flicker. cables are fine as they are used off my IBM LCD screen. It displays the picture fine just keeps flickering and you can hear a flick sound but that maybe the built in speakers on the screen. I don't know if it is the AC Adapter do it or not.
IBM: 760XD,770Z,600X,240,560X,560Z,570,380Z,390X,i1200,i1400,
A22m,A22e,A30,G40,R31,R40,R50,R60,R61,R400,R500,
T20,T23,T30,T40,T43,T60,T61,T400,T400s,T500,W500,W700,
X21,X30,X41,X41T,X60,X60T,X200,X200T,X300,X120e,Z60m,Z61tT410T410sT510T420T420sT520
T430T430sT430UT530T470T470sT470pT570SL500L470L570
A22m,A22e,A30,G40,R31,R40,R50,R60,R61,R400,R500,
T20,T23,T30,T40,T43,T60,T61,T400,T400s,T500,W500,W700,
X21,X30,X41,X41T,X60,X60T,X200,X200T,X300,X120e,Z60m,Z61tT410T410sT510T420T420sT520
T430T430sT430UT530T470T470sT470pT570SL500L470L570
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- ThinkPadder
- Posts: 1192
- Joined: Fri Mar 13, 2009 2:47 am
- Location: New Alexandria, Pennsylvania
Re: Sony Vaio LCD flickering
I took the screen apart and checked everything. It seems ok and the caps on the power board and lcd inverter are good. The click sound is the back light coming on and off. So don't know if this IBM AC Adapter is too much power for it or the LCD light is going bad.
IBM: 760XD,770Z,600X,240,560X,560Z,570,380Z,390X,i1200,i1400,
A22m,A22e,A30,G40,R31,R40,R50,R60,R61,R400,R500,
T20,T23,T30,T40,T43,T60,T61,T400,T400s,T500,W500,W700,
X21,X30,X41,X41T,X60,X60T,X200,X200T,X300,X120e,Z60m,Z61tT410T410sT510T420T420sT520
T430T430sT430UT530T470T470sT470pT570SL500L470L570
A22m,A22e,A30,G40,R31,R40,R50,R60,R61,R400,R500,
T20,T23,T30,T40,T43,T60,T61,T400,T400s,T500,W500,W700,
X21,X30,X41,X41T,X60,X60T,X200,X200T,X300,X120e,Z60m,Z61tT410T410sT510T420T420sT520
T430T430sT430UT530T470T470sT470pT570SL500L470L570
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- Senior ThinkPadder
- Posts: 2507
- Joined: Tue Sep 22, 2015 10:59 pm
- Location: Toronto, Canada
Re: Sony Vaio LCD flickering
You probably wanna try replugging the inverter, its cable as well as the CCFL connector.
Also see if cranking the brightness to the maximum and minimum have any effects.
Moreover, try to observe if any red hue or uneven backlighting occur.
It can be a cold solder joint on the CCFL tube itself, but that probability is usually low, unless the LCD had pest infestation and one bug chomped on the CCFL cable (which happened to a Toshiba that my friend owns)
Also see if cranking the brightness to the maximum and minimum have any effects.
Moreover, try to observe if any red hue or uneven backlighting occur.
It can be a cold solder joint on the CCFL tube itself, but that probability is usually low, unless the LCD had pest infestation and one bug chomped on the CCFL cable (which happened to a Toshiba that my friend owns)
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Precision M4300 X9000 8gb 160gb WUXGA Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Precision M4300 X9000 8gb 160gb WUXGA Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)
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- ThinkPadder
- Posts: 1192
- Joined: Fri Mar 13, 2009 2:47 am
- Location: New Alexandria, Pennsylvania
Re: Sony Vaio LCD flickering
The more I up the light the faster it flickers and lower it flickers slower
IBM: 760XD,770Z,600X,240,560X,560Z,570,380Z,390X,i1200,i1400,
A22m,A22e,A30,G40,R31,R40,R50,R60,R61,R400,R500,
T20,T23,T30,T40,T43,T60,T61,T400,T400s,T500,W500,W700,
X21,X30,X41,X41T,X60,X60T,X200,X200T,X300,X120e,Z60m,Z61tT410T410sT510T420T420sT520
T430T430sT430UT530T470T470sT470pT570SL500L470L570
A22m,A22e,A30,G40,R31,R40,R50,R60,R61,R400,R500,
T20,T23,T30,T40,T43,T60,T61,T400,T400s,T500,W500,W700,
X21,X30,X41,X41T,X60,X60T,X200,X200T,X300,X120e,Z60m,Z61tT410T410sT510T420T420sT520
T430T430sT430UT530T470T470sT470pT570SL500L470L570
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- Admin Emeritus
- Posts: 23825
- Joined: Mon Sep 18, 2006 5:17 am
- Location: Loch Garman, Éire
Re: Sony Vaio LCD flickering
Either a bad monitor or the wrong power supply.
Lovely day for a Guinness! (The Real Black Stuff)
Lenovo: X240, X250, T440p, T480, M900 Tiny.
PS: the old Boardroom website is still available on the Wayback Machine.
Lenovo: X240, X250, T440p, T480, M900 Tiny.
PS: the old Boardroom website is still available on the Wayback Machine.
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- ThinkPadder
- Posts: 1192
- Joined: Fri Mar 13, 2009 2:47 am
- Location: New Alexandria, Pennsylvania
Re: Sony Vaio LCD flickering
I am waiting for a Sony OEM 18v ac adapter to come in to see if that what it is.
IBM: 760XD,770Z,600X,240,560X,560Z,570,380Z,390X,i1200,i1400,
A22m,A22e,A30,G40,R31,R40,R50,R60,R61,R400,R500,
T20,T23,T30,T40,T43,T60,T61,T400,T400s,T500,W500,W700,
X21,X30,X41,X41T,X60,X60T,X200,X200T,X300,X120e,Z60m,Z61tT410T410sT510T420T420sT520
T430T430sT430UT530T470T470sT470pT570SL500L470L570
A22m,A22e,A30,G40,R31,R40,R50,R60,R61,R400,R500,
T20,T23,T30,T40,T43,T60,T61,T400,T400s,T500,W500,W700,
X21,X30,X41,X41T,X60,X60T,X200,X200T,X300,X120e,Z60m,Z61tT410T410sT510T420T420sT520
T430T430sT430UT530T470T470sT470pT570SL500L470L570
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- ThinkPadder
- Posts: 1192
- Joined: Fri Mar 13, 2009 2:47 am
- Location: New Alexandria, Pennsylvania
Re: Sony Vaio LCD flickering
Well I got the AC Adapter in today OEM Sony 18v and the screen isn't flickering now. So it had to be the right AC Adapter. The adapter was hard to find and was the only one on ebay at the time. I don't like to buy cheap knock off ac adapter either. But there wasn't any of this plug type as well. So I got lucky finding this.
I guess I can put it back together now.
I guess I can put it back together now.
IBM: 760XD,770Z,600X,240,560X,560Z,570,380Z,390X,i1200,i1400,
A22m,A22e,A30,G40,R31,R40,R50,R60,R61,R400,R500,
T20,T23,T30,T40,T43,T60,T61,T400,T400s,T500,W500,W700,
X21,X30,X41,X41T,X60,X60T,X200,X200T,X300,X120e,Z60m,Z61tT410T410sT510T420T420sT520
T430T430sT430UT530T470T470sT470pT570SL500L470L570
A22m,A22e,A30,G40,R31,R40,R50,R60,R61,R400,R500,
T20,T23,T30,T40,T43,T60,T61,T400,T400s,T500,W500,W700,
X21,X30,X41,X41T,X60,X60T,X200,X200T,X300,X120e,Z60m,Z61tT410T410sT510T420T420sT520
T430T430sT430UT530T470T470sT470pT570SL500L470L570
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