Question about Hitachi 57F500 57" Rear Projection HDTV-Ready Television

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Can someone confirm the value of resistor RK58 on the Hitachi 57F500A? This resistor keeps blowing. Could the stk392-110 be causing it to blow?

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  • merrittga Oct 12, 2010

    I might add that replacing the resistor works for 3 or 4 months before finally blowing again. I just wonder if a weak STK could cause this to occur.

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  • Master
  • 998 Answers

Possible try to replace the stk392-110 but before installing the new stk check the diodes.

Posted on Oct 12, 2010

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1 Answer

43FDX20B RK58 RK50 RK54 RK42 Values STK392-120's


I don't think it will hurt especially if the updated manual indicates it.

May 13, 2012 | Hitachi Televison & Video

Tip

Hitiachi Convergence Circuit Resistor Values


This site has been very helpful in diagnosing and repairing my Hitachi 57XWX20B. I recently changed the IC's and a resistor to fixe a convergence problem and had to use the small button on the convergence circuit to get set to return from static mode and enter dynamic mode. I searched everywhere trying to locate the correct resistor values and noticed many other's needing the same information. Here are the results of my research. I obtained some from manuals and others from comparison of the different models. My main focus was finding the values for the 57XWX20B. The resistor values are given in ohms at 1 watt. This means RK42 is a 3.3 OHM 1 watt resistor. RK58 was the problem in my set. It was giving a value of 2.3 and needed to be 4.7. I first replaced the IC's and thought the resistors were all good, but I later noticed my convergence was off. I could manually align it but the magic focus initiation would not save. It gave an overflow error. I bought the sanyo brand of IC's, not the cheap inports and found that if you use a desoldering wick then the repair is easy. The new IC's restored the beautiful color the set had when new. Now it is brilliant as well as converged. My repair cost was:
STK-110 13.00 Bought from local electronic supplier
STK-150 15.00
RK58 3.00 Bought from a local TV repair shop

The elecronic supply store gave me 6 inches of desouldering wick
Total cost: 31.00 Dollars

51UWX20B DP23
57UWX20B DP23
51GWX20B DP23G
57GWX20B DP23G
43FWX20B DP24
51XWX20B DP23
57XWX20B DP23
51SWX20B DP27
57SWX20B DP27
65SWX20B DP27
57TWX20B DP27D
65TWX20B DP27D

DP 23 DP 24 DP 27 RK42 3.3 3.3 3.9 RK46 2.2 1.8 1.8 RK50 2.7 3.3 2.7 RK54 1.8 1.8 1.8 RK58 4.7 4.7 4.7 RK62 2.7 2.2 2.2

on Apr 02, 2008 | Hitachi 57SWX20B 57" Rear Projection...

1 Answer

What is the value on resistor RK 62 and RK 63 for the 57F500A


Hi,
See the value of the resistors below.
RK62 - 5.6 ohm (1 watt)
RK63 - 150 ohm (2 watts)
Good luck!
Jdvillanueva

Mar 02, 2012 | Hitachi Televison & Video

1 Answer

What's the value of resistor RK42 on the Hitachi 57F500A?


3.3 ohm/ 1 watt / metal oxide. HIT p/n: AT03202S -- red hor. conv. -- from IC ik04 (STK392-110/150)

May 03, 2010 | Hitachi 57F500 57" Rear Projection...

2 Answers

Hitachi 50FX20B convergence problem


RK42 is 2.7 ohm 1watt
RK46 &RK54 are both 2.2 ohm 1watt
RK50 & RK62 are both 3.3 ohm 1watt
RK58 is 3.9 ohm 1watt
They are all metal film (flameproof) 5% resistors

Jul 20, 2009 | Hitachi 50DX01B 50" Rear Projection...

2 Answers

Incorrect resistors on DP1X PWB?


Assuming this unit was never worked on and it was actually working properly before the IC's decided to take a vacation I would recommend leaving them alone as there may have been an engineering change after the service manual was printed.

Apr 15, 2009 | Hitachi 43FDX15B 43" Rear Projection...

1 Answer

Hitachi 53uwx10ba


ok
upgard the stk392-110 to a stk392-150
note use flame proof resistors 1W
rk42=3.3ohm/rk46=1.8ohm/rk50=2.7ohm/rk54=1.5ohm/rk58=3.9ohm/rk62=2.2ohm
regards,
daniel.

Jan 07, 2009 | Televison & Video

2 Answers

65xwx20b


Is this a Hitachi set? If so then check the model number and be sure it's right.

Dec 05, 2007 | Televison & Video

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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