Comments on: Electronics Repair Questions/Answers and Testimonials -Part 71

By: Jestine Yong

Jestine Yong — Mon, 13 Aug 2012 18:19:14 +0000

In reply to george.

Hi geroge,

Could you send to me the picture at jestineyong(at)electronicrepairguide.com . (at) means @

Jestine

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By: george

george — Fri, 10 Aug 2012 23:59:13 +0000

i have an lg crt tv no picture but audio is present once i connect the antenna but there is a rainbow present at the at the tube i suspected the tube and changed it but still no picture but audio present the tv is displaying on the tube but with a rainbow what could be the problem?

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By: Jestine Yong

Jestine Yong — Fri, 10 Aug 2012 12:30:49 +0000

In reply to george.

Hi george,

What is the complaint of the first tv? Is there any good output voltages from the power supply? The second unit is you need to chekc the supply voltage to the vertical output ic. If there is supply then direct replace the vertical ic and retest.

Jestine

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By: george

george — Thu, 09 Aug 2012 00:27:10 +0000

hi jestine, tell me the outputs of an str f6654 since i have 300v at pin 3 and 4v at pin 4 the rest pins have nothing but at the flyback transformer i can get 20v which is very low to switch the tv i'm suspecting the str to be faulty please help me how i can solve this problems again i have a panasonic tv displaying a sharp horizontal line i have changed the vertical ic la7837 but sill in vain i suspect now the processor an 5192k-b could it be the problem.

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By: Jestine Yong

Jestine Yong — Tue, 10 Jul 2012 21:31:37 +0000

In reply to george.

Hi George,

Sorry i do not have info about the modification of the tuner. AS for the timer mode it can be the programs in eeprom or even the mcu have problem. Before that, is all the output voltages from the power supply good and stable?

Jestine

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By: george

george — Sun, 08 Jul 2012 01:56:02 +0000

hi jestine
my problem is I have a tv matsui model IT is okay but It can only receive uk signals is there a way I can change the tuner so as to receive stations in kenya.I have overheard that there is a way in which u can do so.
I also have another tv jvc in timer mode and not at standby mode at times it switches on but after a shortwhile say five minutes it gets into timer mode.

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By: admin

admin — Mon, 18 Jul 2011 13:07:55 +0000

HI Larry,\

Dry joints means loose contact between the pin and the solder. When fresh solder is applied there will be no more dry joints.

Jestine

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By: Larry PHenneger

Larry PHenneger — Mon, 18 Jul 2011 01:26:39 +0000

What is "dry joint on the analogue devices IC "?

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By: admin

admin — Wed, 23 Feb 2011 00:42:58 +0000

Hi Baxter,

Since i do not have this monitor in my workshop at current moment thus i could not find the number for you-sorry.

Jestine

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By: Baxter

Baxter — Tue, 22 Feb 2011 08:30:46 +0000

hello sir
i have Hp L1706 TFT main board with a burnt transistor. the transistor burnt beyond recognition that am failing to find the right replacement. it is located near two capacitors,10microF & 22microF. i suppose its the biggest transistor comparing to others.Help me to know the type of that transistor or its equivalent. it is labeled Q203. thank you in advance.

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