Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Leonard G. Caillouet
 
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Default RCA P56927 Chassis PTK195M1P Flyback 239111 related parts

IIRC this FBT comes from RCA with a new resistor (R14704) and capacitor
(C14710) with notes that they must be replaced or there may be reliability
problems with the transformer. Is this one of the sets that required this?
I can't find the SB in my records. Are the replacements the same values or
changed?

I had a customer with one of these on order, and as those of you who service
RCA likely know, there are none to be had and the backorder will go at least
well into August. The customer had a buddy in another city in the repari
business who said he could get it through Sears, which he did. The
replacement came and it was an obvious generic (for which he paid $60) and
had no related parts. I made clear that I would not warranty the repair but
he wanted me to install it anyway. We found that C14710 was off value by
about 20% (low) and replaced it with the original value. The transformer
runs rather hot and the focus controls have to be set near one limit to get
good focus. I suspect this is simply a lousy replacement, which is why I
rarely use replacement flybacks, but want to make sure that the values on
the two parts mentioned don't need to be changed.

Thanks,

Leonard


  #2   Report Post  
Art
 
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Default RCA P56927 Chassis PTK195M1P Flyback 239111 related parts

Have encountered very poor quality replacement generic LOPT for RCA,
probably wait for original component & replace the other items supplied with
the new LOPT. Impatience among customers tend to cause us to consider
cheaper, quicker ways out. Thus producing a customer that may have other
failures and cause you callbacks. Other thing I would check on the 195
chassis are the high voltage blocks, seen too many of them flop out and
cause the unit to shut down. IMHO when changing the LOPT I normally change
the block.
"Leonard G. Caillouet" wrote in message
. ..
IIRC this FBT comes from RCA with a new resistor (R14704) and capacitor
(C14710) with notes that they must be replaced or there may be reliability
problems with the transformer. Is this one of the sets that required

this?
I can't find the SB in my records. Are the replacements the same values

or
changed?

I had a customer with one of these on order, and as those of you who

service
RCA likely know, there are none to be had and the backorder will go at

least
well into August. The customer had a buddy in another city in the repari
business who said he could get it through Sears, which he did. The
replacement came and it was an obvious generic (for which he paid $60) and
had no related parts. I made clear that I would not warranty the repair

but
he wanted me to install it anyway. We found that C14710 was off value by
about 20% (low) and replaced it with the original value. The transformer
runs rather hot and the focus controls have to be set near one limit to

get
good focus. I suspect this is simply a lousy replacement, which is why I
rarely use replacement flybacks, but want to make sure that the values on
the two parts mentioned don't need to be changed.

Thanks,

Leonard




  #3   Report Post  
Leonard G. Caillouet
 
Posts: n/a
Default RCA P56927 Chassis PTK195M1P Flyback 239111 related parts

So is the 195 flyback the one that comes with the replacement resistor and
cap?

How do you test the HV block? If the HV is stable and it is not leaking or
getting hot, why would you replace it? Its just a splitter and doesn't even
have an output for HV monitoring.

I agree, generally, that replacement flybacks are typically not a good idea,
and this one (from Sears as their replacement for the RCA) is a good
example, but I have had good results with the replacements from Acme and the
HR parts.

I would only use them when the original is not available or the price is
excessive, and I always make it clear with the customer beforehand that
there may be issues.

Leonard

"Art" wrote in message
...
Have encountered very poor quality replacement generic LOPT for RCA,
probably wait for original component & replace the other items supplied

with
the new LOPT. Impatience among customers tend to cause us to consider
cheaper, quicker ways out. Thus producing a customer that may have other
failures and cause you callbacks. Other thing I would check on the 195
chassis are the high voltage blocks, seen too many of them flop out and
cause the unit to shut down. IMHO when changing the LOPT I normally change
the block.
"Leonard G. Caillouet" wrote in message
. ..
IIRC this FBT comes from RCA with a new resistor (R14704) and capacitor
(C14710) with notes that they must be replaced or there may be

reliability
problems with the transformer. Is this one of the sets that required

this?
I can't find the SB in my records. Are the replacements the same values

or
changed?

I had a customer with one of these on order, and as those of you who

service
RCA likely know, there are none to be had and the backorder will go at

least
well into August. The customer had a buddy in another city in the

repari
business who said he could get it through Sears, which he did. The
replacement came and it was an obvious generic (for which he paid $60)

and
had no related parts. I made clear that I would not warranty the repair

but
he wanted me to install it anyway. We found that C14710 was off value

by
about 20% (low) and replaced it with the original value. The

transformer
runs rather hot and the focus controls have to be set near one limit to

get
good focus. I suspect this is simply a lousy replacement, which is why

I
rarely use replacement flybacks, but want to make sure that the values

on
the two parts mentioned don't need to be changed.

Thanks,

Leonard






  #4   Report Post  
john
 
Posts: n/a
Default RCA P56927 Chassis PTK195M1P Flyback 239111 related parts

Just a question or two here..
Why would anybody use a Generic 239111 when the RCA price is so cheap ?
I just opened 6 RCA 239111,s that came in and none have those update parts.
The last time I saw that those parts were to be changed was with useing
237506,s
Has something changed that I am unaware of.


kip


  #5   Report Post  
John Del
 
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Default RCA P56927 Chassis PTK195M1P Flyback 239111 related parts

Subject: RCA P56927 Chassis PTK195M1P Flyback 239111 related parts


I checked for bulletins, and there aren't any for either the DV or PTV.

But FYI, the capacitor is a .01 @1KV, and the resistor is an 82K @ .5 watt
carbon. If the cap is a blue poly one, it's probably OK. The yellow ones are
suspect.






  #6   Report Post  
Art
 
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Default RCA P56927 Chassis PTK195M1P Flyback 239111 related parts

Hey Leo: with all the information from the these other decitated technicians
maye you could procede to actually repair your 195 chassis now?? I have
seen the blue poly caps swell when they become defective, maybe this will
assist or not. BTW, Leo: Decitated technicians do not always designate
specific components when instructed by manufacturers to replace a pcb, etc.
AND All customers are not always right, agreed??
"John Del" wrote in message
...
Subject: RCA P56927 Chassis PTK195M1P Flyback 239111 related parts



I checked for bulletins, and there aren't any for either the DV or PTV.

But FYI, the capacitor is a .01 @1KV, and the resistor is an 82K @ .5 watt
carbon. If the cap is a blue poly one, it's probably OK. The yellow ones

are
suspect.






  #7   Report Post  
Leonard Caillouet
 
Posts: n/a
Default RCA P56927 Chassis PTK195M1P Flyback 239111 related parts

In the original post I explained that these are on backorder and most
suppliers are saying they will arrive sometime in August. I had a customer
who did not want to wait and had a friend who was a servicer in another city
who gave him the Sears part number. Sears said they had it and he bought it
from them, spending about $60. He insisted that I put it in even after I
explained that I would not warranty the repair and the dangers involved.

As it turns out, Tritronics got 200 of them today. The flyback does not
come with the replacement resistor an capacitor as some RCA flybacks do,
which is what my question was. Ronnie at Tritronics was very helpful in
actually pulling a box and checking.

The generic transformer runs hot and the focus has to be adjusted off to
near the limit of the controls. So much for the quality of Sears
replacement parts.

Leonard

----- Original Message -----
From: "john"
Newsgroups: sci.electronics.repair
Sent: Tuesday, August 03, 2004 11:38 AM
Subject: RCA P56927 Chassis PTK195M1P Flyback 239111 related parts


Just a question or two here..
Why would anybody use a Generic 239111 when the RCA price is so cheap ?
I just opened 6 RCA 239111,s that came in and none have those update

parts.
The last time I saw that those parts were to be changed was with useing
237506,s
Has something changed that I am unaware of.


kip




  #8   Report Post  
Leonard G. Caillouet
 
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Default RCA P56927 Chassis PTK195M1P Flyback 239111 related parts

Art,

you might pay better attention to what is written. The set has been fixed
since last week. The question was about specific parts related to the FBT
and whether there was a SB that I was missing.

Leonard

"Art" wrote in message
...
Hey Leo: with all the information from the these other decitated

technicians
maye you could procede to actually repair your 195 chassis now?? I have
seen the blue poly caps swell when they become defective, maybe this will
assist or not. BTW, Leo: Decitated technicians do not always designate
specific components when instructed by manufacturers to replace a pcb,

etc.
AND All customers are not always right, agreed??
"John Del" wrote in message
...
Subject: RCA P56927 Chassis PTK195M1P Flyback 239111 related parts



I checked for bulletins, and there aren't any for either the DV or PTV.

But FYI, the capacitor is a .01 @1KV, and the resistor is an 82K @ .5

watt
carbon. If the cap is a blue poly one, it's probably OK. The yellow

ones
are
suspect.








  #9   Report Post  
Art
 
Posts: n/a
Default RCA P56927 Chassis PTK195M1P Flyback 239111 related parts

& your complaints regarding the after market LOPT, and one ended focus
adjustment?? All Last Week Eh: LOL
"Leonard G. Caillouet" wrote in message
...
Art,

you might pay better attention to what is written. The set has been fixed
since last week. The question was about specific parts related to the FBT
and whether there was a SB that I was missing.

Leonard

"Art" wrote in message
...
Hey Leo: with all the information from the these other decitated

technicians
maye you could procede to actually repair your 195 chassis now?? I have
seen the blue poly caps swell when they become defective, maybe this

will
assist or not. BTW, Leo: Decitated technicians do not always designate
specific components when instructed by manufacturers to replace a pcb,

etc.
AND All customers are not always right, agreed??
"John Del" wrote in message
...
Subject: RCA P56927 Chassis PTK195M1P Flyback 239111 related

parts


I checked for bulletins, and there aren't any for either the DV or

PTV.

But FYI, the capacitor is a .01 @1KV, and the resistor is an 82K @ .5

watt
carbon. If the cap is a blue poly one, it's probably OK. The yellow

ones
are
suspect.










  #10   Report Post  
Leonard G. Caillouet
 
Posts: n/a
Default RCA P56927 Chassis PTK195M1P Flyback 239111 related parts

Art,

Read the posts. The customer wanted it fixed in spite of my protests and
warnings. My opinion has not changed. Pay attention to the entire
discussion and the context. It was very clear.

Leonard

"Art" wrote in message
...
& your complaints regarding the after market LOPT, and one ended focus
adjustment?? All Last Week Eh: LOL
"Leonard G. Caillouet" wrote in message
...
Art,

you might pay better attention to what is written. The set has been

fixed
since last week. The question was about specific parts related to the

FBT
and whether there was a SB that I was missing.

Leonard

"Art" wrote in message
...
Hey Leo: with all the information from the these other decitated

technicians
maye you could procede to actually repair your 195 chassis now?? I

have
seen the blue poly caps swell when they become defective, maybe this

will
assist or not. BTW, Leo: Decitated technicians do not always designate
specific components when instructed by manufacturers to replace a pcb,

etc.
AND All customers are not always right, agreed??
"John Del" wrote in message
...
Subject: RCA P56927 Chassis PTK195M1P Flyback 239111 related

parts


I checked for bulletins, and there aren't any for either the DV or

PTV.

But FYI, the capacitor is a .01 @1KV, and the resistor is an 82K @

..5
watt
carbon. If the cap is a blue poly one, it's probably OK. The yellow

ones
are
suspect.












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