GQ Electronics Technical Support Forum Active Users: / Visits Today:
Highest Active Users:
GQ Electronics Technical Support Forum
Home | Profile | Register | Active Topics | Members | Search | FAQ
Save Password
Forgot your Password?

 All Forums
 GQ Electronics Forums
 2.GQ Geiger Muller Counter
 gmc-320 Plus V.4

Note: You must be registered in order to post a reply.
To register, click here. Registration is FREE!

Format Mode:
Format: BoldItalicizedUnderlineStrikethrough Align LeftCenteredAlign Right Horizontal Rule Insert HyperlinkInsert EmailInsert Image Insert CodeInsert QuoteInsert List Spell Checker

* Forum Code is ON
Smile [:)] Big Smile [:D] Cool [8D] Blush [:I]
Tongue [:P] Evil [):] Wink [;)] Clown [:o)]
Black Eye [B)] Eight Ball [8] Frown [:(] Shy [8)]
Shocked [:0] Angry [:(!] Dead [xx(] Sleepy [|)]
Kisses [:X] Approve [^] Disapprove [V] Question [?]

   Insert an Image File
Check here to include your profile signature.

T O P I C    R E V I E W
HenryJP Posted - 04/10/2022 : 12:41:19
I accidently installed a fully charged battery in reverse. There was a smoke cloud in about 1 second. I disconnected the battery immediately, but the damage was done. It now doesn't see the battery, but works fine with the usb connector only. After a quick inspection ,I saw that a component on the board is fried. Its called "U7". A 5 PIn chip. I suspect its a chip regulator. Does anyone know what its value is, or if possible a work around, or know where I can get a schematic. (with values)
2   L A T E S T    R E P L I E S    (Newest First)
EmfDev Posted - 04/11/2022 : 10:06:15
Hi HenryJP, when did you buy this one and do you have an order number? Please send your order number and address to We can send you one.
Damien68 Posted - 04/11/2022 : 06:08:43
you can read the marking on the chip and googling it
it look like LTC4054ES5-4.2

GQ Electronics Technical Support Forum © Copyright since 2011 Go To Top Of Page
Generated in 0.17 sec. Snitz's Forums 2000