Re: JVC LT-32VF52K - Boot Loop - Nand Flash Steps
No ideas ?
mijatovic86
Member
Last Activity: 01-02-2022, 02:07 AM
Joined: 05-18-2012
Location: Belgrade
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JVC LT-32VF52K - Boot Loop - Nand Flash Steps
Hi everyone,
I have an issue with JVC LT-32VF52K, that is chassis Vestel 17MB110.
It just flashes Logo JVC and then red led flashes for 12-13 times.
Tried with flashing SPI MX25L1606 but acts identically with it also.
How can I try and flash the NAND using only USB ?
Can it be done with USB flash drive and usb_auto_update_A1.txt file, and what should be the content of that file ?
I did find a nand dump on elektroda.pl, just need to be sure how to flash it ? Its LED JVC LT-32VF52K_NAND.BIN around 540MB large
...Last edited by mijatovic86; 11-11-2021, 04:40 PM. -
Re: Sony LCD KDL-37W5500 - 8 times blink red
Hello to everyone
After a long time a gave a new shot at this TV
I got a new main board, that is for 40w5500, attached it and now it blinks 14 times ...
That makes me very very sad
Now, i think the problem is with LVDS signals from tcon board, because main board for 40W5500 works with panel LTY400HF05-002 and TCON board is Samsung LJ94-02782B.
37W5500 works with panel T370HW03 V.4 and TCON board is Sony A-1741-331-A BT4 (from manufacturer AUO 55.37T05.C07)...
Does anyone knows where...Last edited by mijatovic86; 09-12-2013, 12:38 PM.Leave a comment:
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Re: VIZIO VO37LFHDTV10A no backlight
So did you ever manage to fix that board ? I have similar problem with similar inverter... replaced 2 mosfets and BD9897FS, still no back light .... The led blinks and nothing.
I have 24V supply...
Mine inverter is 6632l-0506aLeave a comment:
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Re: Sony LCD KDL-37W5500 - 8 times blink red
Replaced the Audio AMP, and still nothing.
Even now i have more headache
Cuz guys that did the rework (since i dont have a decent station) f***up
I am missing 1 small ic RRS100N03FPFTB1 (Q1003), but i did not see that at first.
Now i have a blown fuse F1000 on Reg12V... dont even know if BD9540EFV is alive
Leave a comment:
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Re: sony bravia
Post photos, post exact numbers of the boards, Sony model etc...
and post LED behavior Green led lights up or not, red led blinks how many times...
Leave a comment:
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Re: DX-LCD32-09 No Picture - Good Sound
You can try recaping at 1st, that is low cost
Start with c533 534 537 549 ... and see if 24V improves.
Check connectors for TCON...
Here is what i think a SM for Power board of that TV....Leave a comment:
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Re: Sony LCD KDL-37W5500 - 8 times blink red
It is back in previous state. 8 x blinks red.
Audio amp is coming soon, already ordered so i will try...
Btw it will be painful to replace 56pin smd ic. Any suggestion on that subject ?
I have Sm and datasheets no need for uploading. Fuse is ok , that audio amp gets its Vcc (17.4).
It would be nice if you got PSU shematics, for G2 board, not IP1 and IP2.Leave a comment:
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Re: Sony LCD KDL-37W5500 - 8 times blink red
I tried supplying 3.3V from StdBy direct behind 43 pin of CXA3785R behind resistor and when it plug it in, it powers on , green led is shining, when i try to switch channels green led blinks, i shut it down on remote, power it up and it responds, but no LAMPS are lit, no picture.
I have 24V on Lamp board, but probably it does not get some enable signal to power on lamps.
So definitely there is something about that X Protect signal, but something more .
I still dont get how the main CPU expects from various IC...Leave a comment:
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Re: Sony LCD KDL-37W5500 - 8 times blink red
12V is steady, but 15V overshoots to 24V for 0.5 Sseconds, then it stabilizes at 17.4V.Last edited by mijatovic86; 09-12-2012, 01:49 AM.Leave a comment:
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Re: Sony LCD KDL-37W5500 - 8 times blink red
Here are pictures. i zoomed on last picture one zener diode that i think is on 15V line. But I realy need SM for this PSU
Zener is bottom right looking at TOP . I cant read the vaule ......Leave a comment:
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Re: Sony LCD KDL-37W5500 - 8 times blink red
It is PSU like this
I more think that the problem is in the main board than the PSU, except that 17,4V...
i ordered the power amp. the TAS Ic......Leave a comment:
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Re: Sony LCD KDL-37W5500 - 8 times blink red
Yes, 15V is generated by PSU. And it is 17.4V. I can not find a PSu shematics anywhere... in Sony service manual it says that it is not manufactured by Sony, and so there is no schematics. I saw something on forum about zener diode in over voltage protection, but I did not locate it PSU. PSU is 3H267W PSC10270FLast edited by mijatovic86; 09-11-2012, 02:48 AM.Leave a comment:
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Sony LCD KDL-37W5500 - 8 times blink red
Hello to everyone, i have a problem with this Sony LCD
Sony KDL-37W5500
Chassis EX2L
MAINBOARD: 1-878-942-22
PANEL: T370HW02
Audio Amp: TAS5602
Sound System: CXA3785R-T6
main CPU: EMMA3 (under heat sink should be MB91F313APMC-GE1)
Power Supply: G4, MB91F313APMC-GE1
When i try to turn it on it clicks relay, blinks 1x Green Led, then it shuts down and blinks 8x Red Led.
Looking at service manual it should be an Audio Error. When i try to enter Self Diagnostic Menu it just wont light up the screen. I do the sequence... -
Re: New Members - please post your introductions here
Hello to all,
i came across this forum googling some much needed information about monitor faults, and realized that this is a great and high skilled community that I want to be a part of
My name is Miloš, I am from Serbia, Belgrade, working in IT support.
Looking forward to learn and help others if I can.Leave a comment:
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