Re: ESR meter upgrades
Contrast is fine.
Fixed by remark out: CFLAGS += -DSTRIP_GRID_BOARD
Contrast is fine.
Fixed by remark out: CFLAGS += -DSTRIP_GRID_BOARD
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Re: ESR meter upgrades
well that file is almost exactly like mine,
you have contrast at 48, i found 50 is dead-center
your H offset is 0
CFLAGS += -DLCD_ST7565_H_OFFSET=0
i have to use 2 or some problem happened i cant remember.
and you have
CFLAGS += -DLCD_SPI_OPEN_COL
i have that hashed out.
i cant remember why, i need to mess with that later.
anyway - now you got that far - if your happy with the makefile i can try to make you a firmware with my *other* changes
those are mostly saving space, but the frequency generator is different and the contrast menu is gone.(to save space)Comment
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Re: ESR meter upgrades
yes, I am now going to see if those parts upgrade can be salvage from some stuff I have around here.Comment
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Re: ESR meter upgrades
Well the kit has just arrived the bad news is the pcb has none of the parts identified on it bacically its marked r1 r2 c1 c2 etc no instructions either in the package and the seller hasnt got any either i will try to upload a picture later but without knowing what value resitor/capacitor etc goes where im a bit stuck.Comment
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Re: ESR meter upgrades
that's fucking insane!Comment
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Re: ESR meter upgrades
cheers stj someone else also posted this new manual for me on eevblog im just having a read of it now and also going too measure the resistors in the kit and see what matches up etc.
Im just measuring all the resistor values in the kit and also seeing what the four transistor part numbers are the rest i have already figured out.
its a 8 mhz crystal
transistors are 2x c945 p331 1x 4673 4c gf 2 1x ws tl431 928
resistors x6 10k x2 110 ohm x2 27k x3 470k x1 470 ohm 1x 33k x3 680 ohm x1 100k x1 5.6k x2 3.3k x1 2.2 there is also x1 brown looking type resistor but it only has 1 black band dead centre of it but there are 23 resistors in this kit plus the odd brown one but only 21 fitted resistors in the kit.
Now the main issue what resistor transistor goes where.Attached FilesLast edited by vinceroger69; 06-17-2016, 11:30 AM.Comment
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Re: ESR meter upgrades
'1 brown looking type resistor but it only has 1 black band dead centre of i' That sounds like '0' Ohm jumper.
I.E.:
http://www.digikey.com/product-detai....0QTR-ND/18795
http://www.digikey.com/product-detai...8TB-ND/2054706Never 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: ESR meter upgrades
brown resistor with a black band is a 0-ohm jumperComment
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Re: ESR meter upgrades
it's nicer than a jump wire when you have to cross some tracks or have a connection you may need to open for tests.Comment
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Re: ESR meter upgrades
thanks guys although i cant see that 0 ohm used on this tester in all the pictures online Whats your thoughts guys regarding selling these kits but no build instructions? hows the average hobbiest supposed to know which part goes where? theres nothing in the add to say about instructions either way im struggling to find information about it im using this site and eeblog and even those guys dont seem to know as yet what goes where etc
http://www.eevblog.com/forum/testgear/$20-lcr-esr-transistor-checker-project/2075/Last edited by vinceroger69; 06-17-2016, 01:49 PM.Comment
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Re: ESR meter upgrades
i would be tempted to ask for a refund because it cant be built without a reference sheet - that will make the bastards jump.Comment
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Re: ESR meter upgrades
it's unlikely they will ask for it.
they may post a big foto of a built one if they have it - because it effects all the customers.Comment
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Re: ESR meter upgrades
Yes, especially since the seller has one for sale assembled aswell!
I bought one too but I'm still waiting for it, so I'm very thankful for your work on this vinceroger
"The one who says it cannot be done should never interrupt the one who is doing it."Comment
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Re: ESR meter upgrades
Yes"The one who says it cannot be done should never interrupt the one who is doing it."Comment
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I read EBOOK of Testing Electronic Component and found that
"In order to test the small blue resin coated ceramic disk capacitor which has 104 50v specification,it is possible to test this small ceramic capacitor by making use of analogue meter.
Set to times 10Kohm that has 12v output from the probe to check disorder of ceramic capacitor.
It is not uncommon that testing result of digital capacitance meter is okay,But It show shorted reading when you check it with analogue meter."
Is it really possible to test small ceramic disc capacitor with analogue... -
I have had with regular AA batteries that leak this meter is expensive new I already replaced the battery battery clips once and the same thing happened again and I am tried of so it is getting modified to accommodate lithium ion batteries that are the same size excluding the positive terminal and removing the battery clips I will have enough room for the BMS protection board
I going to put 3 lithium ion battery in parallel with the BMS protection board and a way to charge the battery externally and heat shrink the battery pack and use a JST connector so I easily remove the battery... -
Hi
I want to change the scale of an analog meter, to monitor the charge of an li-ion single cell, so the needle at the end would point 4.2 volts and the 0 on the meter would point 2.5 volts or so, i tried to add diodes or a zener in series with the meter but the changes of the ambient temperature also changes the voltage value on the meter
I wonder how i can accomplish this so the meter would be precise at any temperature ?
Thnaks -
About a month ago we had a transformer jumper wire that burned in two different places between two transformers caused over $200 thousand dollars worth of damage to VFD drives at least 10 of them and a memory card and quite a few power supply as well
Now we have most of the equipment that got damaged back up and running except a feeder that has issues and we are waiting for some parts for
Now we also have another piece of equipment that was blowing fuses on the 110 volt controller switch circuit with the “E” stops and one switching power (24 volt) supply and a transformer... -
hi guys so i have this ps4 fat 1215 i believe ( the one with the ps4 pro/slim newer encoder ic ) so i replaced hdmi and 2 blown filters and still no pic so i replaced encoder and still no pic. i made sure port is solid even checked with a breakout hdmi and tested ground and data lines.. Filters are all good , though 2 of the newer ones are larger then the original ones i dont know if that matters ?
Made sure under the scope encoder pins all look solid went over with fine tip and solder again. Idk but this thing is stressing me out..
ps4 seems to boot fine blue light then solid...
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