resistor color code help

G

Gary Woodruff

Guest
Howdy all I have a resistor on a front panel tv control that has a 5
band color code of brn-blu-red-gold-grn. This resistor is not burnt but
measures 1.62K ohms. from the color code I would suspect 16.2 ohms. If I
replace the 1.62k with a 16.2 the set will not power on. If I put the
1.62k back in set powers and then shuts down after 5 seconds. There are
many posts that identify the front panel cb as the culprit.(circuit
board is no longer available from RCA). There are 4 or 5 resistors and 6
tact switches, and one cap on this board. this resistor is the only
component in the circuit with the on/off tact switch. My main confusion
is the color code and value of this resistor, am I missing something???

Gary
 
"Gary Woodruff" <woodruffrepair@gmail.com> wrote in message
news:BDNRn.99681$0B5.78088@newsfe05.iad...
Howdy all I have a resistor on a front panel tv control that has a 5 band
color code of brn-blu-red-gold-grn. This resistor is not burnt but
measures 1.62K ohms. from the color code I would suspect 16.2 ohms. If I
replace the 1.62k with a 16.2 the set will not power on. If I put the
1.62k back in set powers and then shuts down after 5 seconds. There are
many posts that identify the front panel cb as the culprit.(circuit board
is no longer available from RCA). There are 4 or 5 resistors and 6 tact
switches, and one cap on this board. this resistor is the only component
in the circuit with the on/off tact switch. My main confusion is the color
code and value of this resistor, am I missing something???

Gary
Click to expand...
It has 3 significant digits instead of 2 and the final value band is the
number of 0's.

A good example of scaling is: a brown/black/orange is 10k -
brown/black/black/orange is 100k.

Faulty resistors in low power circuits are rare - are there any
electrolytics on that board?
 
Ian , thanks. The band in question is the 4th gold band the multiplier.
Gold will give me a value of 16.2 ohms, however the resistor measures
1.62K ohms. I would expect the multiplier to be brn to get the 1.62k
that the resistor actually measures??



ian field wrote:
"Gary Woodruff"<woodruffrepair@gmail.com> wrote in message
news:BDNRn.99681$0B5.78088@newsfe05.iad...
Howdy all I have a resistor on a front panel tv control that has a 5 band
color code of brn-blu-red-gold-grn. This resistor is not burnt but
measures 1.62K ohms. from the color code I would suspect 16.2 ohms. If I
replace the 1.62k with a 16.2 the set will not power on. If I put the
1.62k back in set powers and then shuts down after 5 seconds. There are
many posts that identify the front panel cb as the culprit.(circuit board
is no longer available from RCA). There are 4 or 5 resistors and 6 tact
switches, and one cap on this board. this resistor is the only component
in the circuit with the on/off tact switch. My main confusion is the color
code and value of this resistor, am I missing something???

Gary


It has 3 significant digits instead of 2 and the final value band is the
number of 0's.

A good example of scaling is: a brown/black/orange is 10k -
brown/black/black/orange is 100k.

Faulty resistors in low power circuits are rare - are there any
electrolytics on that board?
Click to expand...
 
On Tue, 15 Jun 2010 12:12:16 -0400, Gary Woodruff
<woodruffrepair@gmail.com> wrote:

Howdy all I have a resistor on a front panel tv control that has a 5
band color code of brn-blu-red-gold-grn. This resistor is not burnt but
measures 1.62K ohms. from the color code I would suspect 16.2 ohms. If I
replace the 1.62k with a 16.2 the set will not power on. If I put the
1.62k back in set powers and then shuts down after 5 seconds. There are
many posts that identify the front panel cb as the culprit.(circuit
board is no longer available from RCA). There are 4 or 5 resistors and 6
tact switches, and one cap on this board. this resistor is the only
component in the circuit with the on/off tact switch. My main confusion
is the color code and value of this resistor, am I missing something???

Gary
Click to expand...
I'd say the value is 1.6K, 5%. The final green band may be a
temperature code.


--
Peter Bennett, VE7CEI
peterbb4 (at) interchange.ubc.ca
GPS and NMEA info: http://vancouver-webpages.com/peter
Vancouver Power Squadron: http://vancouver.powersquadron.ca
 
"Gary Woodruff" <woodruffrepair@gmail.com> wrote in message
news:NoORn.98625$rE4.16388@newsfe15.iad...
Ian , thanks. The band in question is the 4th gold band the multiplier.
Gold will give me a value of 16.2 ohms, however the resistor measures
1.62K ohms. I would expect the multiplier to be brn to get the 1.62k that
the resistor actually measures??
Click to expand...
You will get flamed if you keep on top posting.
 
Gary Woodruff <woodruffrepair@gmail.com> wrote in
news:BDNRn.99681$0B5.78088@newsfe05.iad:

Howdy all I have a resistor on a front panel tv control that has a 5
band color code of brn-blu-red-gold-grn. This resistor is not burnt but
measures 1.62K ohms. from the color code I would suspect 16.2 ohms. If I
replace the 1.62k with a 16.2 the set will not power on. If I put the
1.62k back in set powers and then shuts down after 5 seconds. There are
many posts that identify the front panel cb as the culprit.(circuit
board is no longer available from RCA). There are 4 or 5 resistors and 6
tact switches, and one cap on this board. this resistor is the only
component in the circuit with the on/off tact switch. My main confusion
is the color code and value of this resistor, am I missing something???
Click to expand...
That code confuses me. It's not burned, you say, but are you certain it
hasn't been strongly heated? I've seen some paints on resistor bands get
permanently changed in colour on some resistors that otherwise show no signs
of significant overheating. In one case a brown or black ended up looking
metallic so look closely at any gold or silver bands..

In this case all that might not apply, but it often does. But if you found no
damage from trying a 1R6 where a 1K6 seems called for, I doubt in either case
there is a current capable of heating much. It suggests you might be able to
safely try any of a very wide range of resistances to see if one works right.
 
Peter Bennett wrote:
On Tue, 15 Jun 2010 12:12:16 -0400, Gary Woodruff
woodruffrepair@gmail.com> wrote:


Howdy all I have a resistor on a front panel tv control that has a 5
band color code of brn-blu-red-gold-grn. This resistor is not burnt but
measures 1.62K ohms. from the color code I would suspect 16.2 ohms. If I
replace the 1.62k with a 16.2 the set will not power on. If I put the
1.62k back in set powers and then shuts down after 5 seconds. There are
many posts that identify the front panel cb as the culprit.(circuit
board is no longer available from RCA). There are 4 or 5 resistors and 6
tact switches, and one cap on this board. this resistor is the only
component in the circuit with the on/off tact switch. My main confusion
is the color code and value of this resistor, am I missing something???

Gary


I'd say the value is 1.6K, 5%. The final green band may be a
temperature code.


WOw, you are the first the get it correct.
Click to expand...
 
Thanks to Peter Bennett. I concur it is a 4 band resistor with a fifth
temp band. The resister is in a low power circuit and has no sign of
damage or overheating.


Gary Woodruff wrote:
Howdy all I have a resistor on a front panel tv control that has a 5
band color code of brn-blu-red-gold-grn. This resistor is not burnt but
measures 1.62K ohms. from the color code I would suspect 16.2 ohms. If I
replace the 1.62k with a 16.2 the set will not power on. If I put the
1.62k back in set powers and then shuts down after 5 seconds. There are
many posts that identify the front panel cb as the culprit.(circuit
board is no longer available from RCA). There are 4 or 5 resistors and 6
tact switches, and one cap on this board. this resistor is the only
component in the circuit with the on/off tact switch. My main confusion
is the color code and value of this resistor, am I missing something???

Gary
Click to expand...
 
responding to
http://www.electrondepot.com/components/resistor-color-code-help-22917-.htm ,
BEN wrote:
woodruffrepair wrote:



Howdy all I have a resistor on a front panel tv control that has a 5
band color code of brn-blu-red-gold-grn. This resistor is not burnt but
measures 1.62K ohms. from the color code I would suspect 16.2 ohms. If I

replace the 1.62k with a 16.2 the set will not power on. If I put the
1.62k back in set powers and then shuts down after 5 seconds. There are
many posts that identify the front panel cb as the culprit.(circuit
board is no longer available from RCA). There are 4 or 5 resistors and 6

tact switches, and one cap on this board. this resistor is the only
component in the circuit with the on/off tact switch. My main confusion
is the color code and value of this resistor, am I missing something???

Gary
Click to expand...

It seems that there is something else wrong. Sounds like there is a protection
circuit that is turning off the power to the board. Or something is drawing
too much current so it is being shut down. leaky capacitor? bad voltage
regulator?
color code brown =1 , blue=6 , red= 2 zeros , 1600 ohms. 4th band gold =5%,
silver=10% I believe
Ben.
 
On 08/06/14 19:20, BEN wrote:
responding to
http://www.electrondepot....

Howdy all I have a resistor on a front panel tv control that has a 5
band color code of brn-blu-red-gold-grn. This resistor is not burnt

It seems that there is something else wrong. Sounds like there is a
protection
circuit that is turning off the power to the board. Or something is drawing
too much current so it is being shut down. leaky capacitor? bad voltage
regulator? color code brown =1 , blue=6 , red= 2 zeros , 1600 ohms.
4th band gold =5%,
silver=10% I believe
Ben.
Click to expand...

You are responding to a four year old post (15 Jun 2010), such a waste
of effort when you are trying nicely to help people!

Find out about direct access to usenet newsgroups via a newsreader, not
using a web browser.

http://www.eternal-september.org/ offer free accounts as do many others.


--
Adrian C
 
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