[Techtoolslist] BK IC Tester 552

[Art]

Anyone have interest in a working B&K 560 and a working 545?  Both used, 
clean, were working in 2006 and stored since  - will retest before shipping 
if they sell.  Offers?
thanks
Art
----- Original Message ----- 
From: "John Robertson" <jrr at flippers.com>
To: "Technical Tools Mail List" <techtoolslist at flippers.com>
Sent: Saturday, June 08, 2013 1:54 PM
Subject: Re: [Techtoolslist] BK IC Tester 552



> On 06/08/2013 1:11 AM, Fabrizio Vasile wrote:

>> Hi Jose,

>> it's a logic comparator, I guess you won it on Ebay some days ago.The 552 

>> model you have is for CMOS testing while the 550 model is for TTL.I have 

>> both of these.

>> The operation simply; put a good known IC in the ZIF socket, connect the 

>> clip to the IC on the unit under test, press the TEST button.If the OK 

>> led will light, then the IC is good otherwise some of the numbered LEDs 

>> will go ON telilng you there is a problem on that PIN (usually 

>> outputs).Please, keep in mind that this device is not perfect and it will 

>> give you false positive when, for example, output of an IC is tied to 

>> GROUND or VCC or when you are testing particular devices like flip-flop, 

>> counters, latches (you have to CLEAR these before testing).Obviously, 

>> your comparator need to take POWER and GROUND from the unit under test by 

>> connecting the  RED and BLACK clips.

>> Later I will scan the manual of my B&K 552 and send it to you.

>>

>> P.S.

>> Did you find your Fluke 68000 POD at the end?

>>

>

> Please send me a copy too, for the TTL archives.

>

> Thanks,

>

> John :-#)#

>> ----- Original Message ----- From: "Jose Luiz Martins" 

>> <joseluizmartins at gmail.com>

>> To: "Technical Tools Mail List" <Techtoolslist at flippers.com>

>> Sent: Saturday, June 08, 2013 3:40 AM

>> Subject: [Techtoolslist] BK IC Tester 552

>>

>>

>>> Hi!

>>>

>>> I fond one BK 552 IC Tester but I don't have it's manual.

>>>

>>> Can someone tell me how this tester works please?

>>>

>>>

>>> Thanks!

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>>

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>>

>

>

> -- 

> John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9

> Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames)

>                  www.flippers.com

> "Old pinballers never die, they just flip out"

>

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