开云体育

-----Original Message-----
From: TekScopes@... [mailto:TekScopes@...] On Behalf Of Alexandre Souza - Listas
Sent: Saturday, July 07, 2012 11:40 AM
To: TekScopes@...
Subject: Re: [TekScopes] Re: tektronix 2445 help


3847K file just showing something useless? Wake up to life, Luciano! :oP Why can't you host the picture online or compress it better? :oP

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Enviado do meu Motorola PT550
Meu site:



----- Original Message -----
From: "Lucianopep Luciano" <lucianopep@...>
To: <TekScopes@...>
Sent: Saturday, July 07, 2012 1:34 PM
Subject: Re: [TekScopes] Re: tektronix 2445 help [2 Attachments]






________________________________
Hello Tom photo 4193 pin 18 U800 pin 16 non have trace..and test point 59
pin 9 u 735 see Photo 4195 ..4196
Probe X1 set.

hi ..luciano :-)




?
Can you put the good scope on U800 pins 18 (tp60), 16 (tp63), and test
point 59 (U735-9). Maybe take a quick picture of each.

The one measurement that has me puzzled is U800 pin 11. It is over 1.5
volts low and is a power input pin.



----- Original Message -----

From: Lucianopep Luciano
To: TekScopes@...
Sent: Friday, July 06, 2012 6:32 PM
Subject: Re: [TekScopes] Re: tektronix 2445 help







________________________________

Hello Tom What do you think? How about if I take once again the voltage
all pins of U800
and you send a photo as you set my Telk 2445?
The values ??that I have highlighted are those that determine the fault?
Thanks Tom. Luciano :-)


?
Here are the readings I get. I put them next to what you measured on your
scope.


pin 1 = -2,62 V -2.187
pin 2= -1233mV +1.164
pin3= +14,52 V +10.21
pin4= +8,30V +38.7 - hor plate
pin5= 0V 0
pin 6= + 78,7V +84.3
pin 7= +86,4V +86.3
pin 8= + 76,4 V +60.3
pin 9 =+73,7V +39.2 + hor plate
pin10 = +15,01V +14.98
pin 11= +3,95V +5.68 This one puzzles me. The measurement I got is what
I would expect.
pin12= +4,29V +4.27






pin13=+7,90 mV +0.296
pin 14= +4,96V +4.96
pin 15= 0V 0
pin 16= -1685mV -1.683
pin17= +230mV -0.306
pin18= -57,4mV -0.007
pin19= +4,95V -4.98
pin20= +24,7mV -.003
pin21= -41,2mV -0.032
pin 22= -1367mV +0 .035 H pos centered, yours is ok here.
pin 23= 0V 0
pin 24=+609mV -4.97 I need to review this one.

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