Q4402 for ProScan CTC169 needed

[Matt Baum]

Re my previous post - and helpful answers.
[CTC 169 OnScreen Display Problem ]

Chassis is CTC 169AJ
Problem is most likely Horizontal Sync Buffer transistor - Q4402, listed
in the manual as "Stock Number 215495"

Anyone know how to find specs on this, what to replace it with, or where
to get an exact replacement?

TIA - Matt Baum

 

[Shoreline Electronics]

Order from www.tritronicsinc.com


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Shoreline Electronics Repair
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Clinton,CT 06413
860-399-1861
860-664-3535 (fax)
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"Matt Baum" <mmbaum@optonline.net> wrote in message
news:HQZsb.1531$fA2.840163@news4.srv.hcvlny.cv.net...

Re my previous post - and helpful answers.
[CTC 169 OnScreen Display Problem ]

Chassis is CTC 169AJ
Problem is most likely Horizontal Sync Buffer transistor - Q4402, listed
in the manual as "Stock Number 215495"

Anyone know how to find specs on this, what to replace it with, or where
to get an exact replacement?

TIA - Matt Baum

 

[RonKZ650]

You are aware this is a surface mount miniture transistor mounted on the bottom
of the board? It's a standard NPN surface mount transistor, comes 5 in a pack
available from any RCA distributer. It takes a small iron and steady hand to
replace.
Ron

Chassis is CTC 169AJ
Problem is most likely Horizontal Sync Buffer transistor - Q4402, listed
in the manual as "Stock Number 215495"

Anyone know how to find specs on this, what to replace it with, or where
to get an exact replacement?

TIA - Matt Baum

 

[Matt Baum]

Thanks Ron -
Yes, from the manual it is an NPN SMT device.

I primarily want to know if I need anything with high gain; fast speed;
or anything else critical.
It looks like a simple emitter follower - with nothing special going on,
but I would like to be prepared properly with the right new part before
tearing the thing apart.

Any further ideas?

Matt

RonKZ650 wrote:

You are aware this is a surface mount miniture transistor mounted on the bottom
of the board? It's a standard NPN surface mount transistor, comes 5 in a pack
available from any RCA distributer. It takes a small iron and steady hand to
replace.
Ron


Chassis is CTC 169AJ
Problem is most likely Horizontal Sync Buffer transistor - Q4402, listed
in the manual as "Stock Number 215495"

Anyone know how to find specs on this, what to replace it with, or where
to get an exact replacement?

TIA - Matt Baum