My brother gave me this oscilloscope.I not sure if it will work for testing on tvs such as for bad tcon board or panel.I know it is 20mhz.It is not in best physical condition but looks like it works.
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Re: Oscilloscope hitachi v212 20 MHz
A tad rough but it looks mostly complete sans a knob.
Based on the age and looks like not too ideal storage conditions before you might have to pop it open and give the front switches a cleaning with your favorite electronics cleaner (I have deoxit myself).
If the line jumps around when you bump switches it's almost always dirty switches, or if it's unstable at certain switch positions. -
Re: Oscilloscope hitachi v212 20 MHz
Will 20mhz be enough for tv repair.Comment
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Re: Oscilloscope hitachi v212 20 MHz
OK for Checking switching power supply, audio, but the LVDS signal can be >100 Mhz.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Oscilloscope hitachi v212 20 MHz
Which oscilliscope would you reccommended and is the investment be of great help to me.thanksComment
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Re: Oscilloscope hitachi v212 20 MHz
I've heard good things about the Rigol units if you want new.
If you look used it's easier to just look around to see what there actually is then go based on what you find. Looking on what I assume is your local craigslist (Dallas, TX) I don't see a whole lot but something might turn up.Comment
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Re: Oscilloscope hitachi v212 20 MHz
Why don' t you clean up the switches and controls and then use it just to get use to how to use the scope before spending more money, it will more than good enough for troubleshooting power supplies.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Oscilloscope hitachi v212 20 MHz
Will do budm.thanksComment
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Hello.
I have jut got my first analogue oscilloscope. An Isotech 620 20MHz.
I want to learn how not to damage it, and I found instructions on the internet obscure.
They talk about ground, earth, floating ground, this, that....
But they don't actually say anything anything useful so far.
I want to know:
Don't connect exactly this to exactly there or it blows up.
For example, I am tracing a signal from a function generator in an audio amp, or testing for voltages in different parts of a circuit.
I want to know what not to connect... -
Chiedo aiuto per problema a TV Hitachi 32HE4500 che non si accende più,ho bisogno del firmware della scheda madre vestel 17MB211S codice pannello VES315UNVL-2D-N11 ?
spero che qualcuno può averlo per riprogrammare eprom. grazie
Post in English !!!
I ask for help with a problem with a Hitachi 32HE4500 TV that no longer turns on, do I need the firmware for the Vestel 17MB211S motherboard, panel code VES315UNVL-2D-N11? I hope someone can have it to reprogram eprom. Thank you
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I have recently acquired a Dynamco D7100 analogue oscilloscope without a user manual. As this is the first time I have owned or used an oscilloscope I would like to try and find an instruction book. The manufacturers no longer hold any information and a Google search only found one site but when I downloaded a 'service manual' all I got was gobbledegook. Any help would be gratefully appreciated or even pointers to a generic manual where I could learn more. -
TV Model: Hitachi 40HYC42
Power Supply: 17IPS71
MainBoard: 17MB95M
Panel: VES400UNDS-2D-NO3
When the set came in it was dead. Fuse was open primary side and the power mosfet was shorted. So I ordered a new power supply. Now it turns on, only displays "Hitachi" and then power off red and blue led flashing.
I had to modify the 0ohm resistors in the led backlight of the new PS like the original power supply.
Is there any variants on 17IPS71 power supply's?
UART output pins 10 and 12 on scart connector:
...Code:12:24:04.595
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Hi, I have a Hitachi tv model L47V651, there is no image, but sound and backlights turn on, so I believe the issue is the tcon board.
I opened the tv to access the board and took the shared pictures of the T-Con board.
I saw a video from shopjimmy on how to detect the model number on tcon boards, but this doesn't have a sticker like how that video showed all boards.
I searched the P/N number and got results with the same marking name and P/N my board has but they list other specific tv models like Vizio and Philips brand but not Hitachi.
Inspecting...
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