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Chirping noise hitachi

Replaced ICs and resistor rk42 rk46 rk58. now my tv makes a chirping noise. i was wondering if i need new ic's. and how they could of blown. Also my red convergence is off and the screen is bowed, i was wondering what causes the bow.

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If you have not replaced IC's replace them an you need to do convergence after good luck

Posted on May 06, 2008

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It will not stay on after you power it up


Replace Both of the STK ICs,they are big black ICs and will be mounted to big Aluiminm Heat Sink
they will have part number on them STK392-110,use 120s or 150s also check all of the resistors
in front of ICs Low ohm resistors RK42 RK46 RK50 RK58.
Mats Electronics has Parts 1-800-628-1118 Ask if they have Convergence repair Kit.

Jan 28, 2011 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Hitachi 61swx10b HDTV - Convergence problems. User 'gdroukas' mentioned in a post that it is probably the convergence amps and a few resistors that have changed value. Can anyone be a bit more specific? ...


Convergence ICs are Big Black ICs and will have the part number on them. STK392-110,
upgrade to 120s or 150s better ICs.
Resistors to replace are RK42 3.3ohms, RK46 1.8 ohms, RK50 2.7ohms,RK54 1.5, RK58 3.9 ohms. RK62 2.2ohms
Mats Electronics has STK ICs 1-800-628-1118 order convergence Kit that comes with resistors.
ACME has the Convergence resistors they must be 1 watt resistors 1-800-575-9833

Let me know if you need any more help Thank You.

Jan 13, 2011 | Televison & Video

2 Answers

I have a 54 inch Hitachi 57G500. The picture is now showing double on the blue spectrum color and auto magic focus is not fixing it.


Most likely this set has bad convergence amp ic's and some open resistors. This can be a very tricky repair. Check:
resistors RK42, RK46,
RK50, RK54, RK58, RK62
Output STKs IK04, IK05.
Hopefully this will help. Thanks for using fixya.

Jan 14, 2010 | Hitachi 57G500 57" TV

1 Answer

Looks like I have 3 different colors of the picture....red shadow and I think the other shifted color was blue...


Replace Both of your STK ICs STK 392-110s use 150s or 180s they are Big Black ICs will have part number on them. Call Mats Electronics for parts 1-800-628-1118 also replace these resistors RK42,RK46, RK50, RK54,RK58, RK60.

Dec 29, 2009 | Hitachi 53FDX01B 53" Rear Projection...

1 Answer

REPOST: Hitachi 60SX12B Rear Projection TV typical(?) problem


If you can solder you can Fix It STK ICs they are big black ICs will have part number on them example STK392-110 replace Both and these resistors RK42 3.3ohms RK46 1.8 RK5 2.7 RK54 1.5 RK58 3.9 RK60 2.2ohms upgrade to STK392-150s better ICs

Dec 03, 2009 | Hitachi 60SX12B/13K 60" Rear Projection...

1 Answer

Blue droopy line in middle of tv, everything yellowish above


Your convergence ICs Stk-392-110s Replace Both ICs.If 110s use 180s if 020s use 040s other wise Go by number on ICs .Mat electronics has parts 1-800-628-1118.Thats Cheap for 300.00 if you only have to replace ICs! Check all resistors around ics replace them if burt/read bad.RK42 3.3ohms RK46 1.8 RK50 2.7
RK54 1.5 RK58 3.9 RK62 2.2 ohms.

Jan 07, 2009 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Projection T.V. Picture


Replace Both of your STK ICs convergence ICs STK392-110 use 150s Better ICs Call Mats 1-800-628-1118 Also RK42 RK46 RK48 RK50 RK54 RK58 RK60 will have to get back to you on resistor values

Jul 21, 2008 | Hitachi 60SX12B/13K 60" Rear Projection...

1 Answer

Blue won't line up at the top in digital array


you need to replace both convergence ICs and the six 1 watt feed resistors. The ICs are both STK392-110 and the resistors you need one of each RK42 3.3 ohm 1watt, RK46 1.8 ohm 1watt, RK50 2.7 ohm 1watt, RK54 1.5 ohm 1watt, RK58 3.9 ohm 1watt and RK62 2.2 ohm 1 watt.
You can get replacement ICs and resistors at the following link with free instalation instructions.
http://servicemanuals.vstore.ca/

Jul 15, 2008 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Blue convergence


Thats the classisc sign that you need to replace both convergence ICs. You will need two Convergence ICs STK392-120 and then six resistors they are RK42 3.3 ohm 1watt, RK46 1.5 ohm 1watt, RK50 2.7 ohm 1watt, RK54 1.5 ohm 1watt, RK58 3.9 ohm 1watt, RK62 1.8 ohm 1watt. You can get replacement ICs and resistors at the following link and they provide free instalation instructions with pictures so you can repair the set yourself. Heres the link.
http://servicemanuals.vstore.ca/

Jul 10, 2008 | Hitachi FDX Series 43FDX10B 43" Rear...

2 Answers

Resistor ohm values??????


RK42 = 2.2 , RK46 = 1.5 , RK58 = 3.3 , RK52 = 1.8 , RK 50 = 2.2 , RK54 = 1.5

Aug 28, 2007 | Hitachi 53UDX10B 53" Rear Projection...

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