Please help need schematics for White's TM800

[IvanS]

Please help need schematics for White's TM800.My detector is broken,any body help....

[erolunall]

Hello
İf you sent near photos of it will be good here.
https://www.geotech1.com/thuntings/s...ad.php?t=12324
Regards
Erol

[IvanS]

Picture 043.zipPicture 082.zip

[IvanS]

Picture083.zip

[erolunall]

Hi

Sorry ivan I search in forums
I found below link
https://www.geotech1.com/thuntings/s...ighlight=tm800

Ask them

Regards
Erol

[Esteban]

Here schematic found on forum

[sonar]

Esteban. I check Erolunall photos and i think one: its not the same detectors!

TM 808 have 13? IC's - on Erolunall PCB i found only six! TM 800 is totaly different

Erolunall better tell us what is wrong?

[amtech2005]

Please help need schematics for White's TM800

Here is my contribution , Eugene

[sonar]

Im sure so TM 800 it is not a the same detector like TM808. Check Picture048.zip.



Where is XTAL there used in TM808? ICs lost in action?

Maybe its a RC bridge like this?



Looks smiliar but its not the same md - but TM808 circuit can be useful here. Youre right...

About ICs in this TM800 - how all cost? Maybe 5-25 dollars with all transistors

[amtech2005]

Please help need schematic for white's TM800

Yes There is TM800, TM808 and TM900 . I posted TM808. We still need TM800!!!!!!!!!!!!!

[kt315]

as TM-808 is the absoliutely due copy of 5900 and 6000 Di Pro (one mode from all), so TM-800 is also a copy of 4900 or 5000 D. I hope. take a course in Search engine, all these schematics has been chewed many times here.
try to turn on your imagination.

[IvanS]

It'is true for say amtech2005 and sonar,TM808 is a diferent detectors.Bat 5900 and 6000 maybe a copy?I'am not professional for that,for this reason i'am ask help.

[kt315]

I see a similarity on 3900 d pro, but TM-800 has still 4069 (I think it used for GEB change-over). pronouncedly you hold '4900 d pro'.

[sonar]

what we see on pcb...

8 transistors (maybe any 78** or 79** there?)

U1 CD4069
U2 CD4016
U3 LM393
U4 ?
U5 CA3140
U6 ?
U7 LM353? or LM393?

5 potentiometers (2 trimpots)

LM324 have a 14 pins...

hmmm....

[Unregistered]

ic.TM800 WHITES

u1=CD4069 U2=CD4016 U3=LM393 U4.U6.U7=LM358 U5=CA3140E TRANSISTOR=Q1.Q2.Q3.Q5=MPS6520 Q4.Q6=MPS6522 Q7=MPS3638 Q8=MPS A13.