Zenith B27B40Z


	FORUM HOME	SEARCH POSTS	WHO'S ONLINE	LOG IN	RULES F.A.Q.

TV Forums: TV Equipment: TV Repair Forum:
Zenith B27B40Z

Print Thread

maverickr
User

May 1, 2010, 8:38 PM

Post #1 of 10 (1387 views)
Shortcut

Zenith B27B40Z	Can't Post

I have a busted flyback, pt# 95-4438-04, in this set. I found a replacement which was not the original zenith. Now when I power on the tv i can actually hear it as if its coming on and then it just shuts back down. When i push power again nothing happens but if I unplug and replug and then hit power it does as previously stated.I've troubleshooted and can't seem to find anything else wrong so I'm thinking that maybe this requires an original zenith flyback in order to work. Am I correct or could I be overlooking something here?

shadetree
Veteran

May 1, 2010, 11:36 PM

Post #2 of 10 (1382 views)
Shortcut

Re: [maverickr] Zenith B27B40Z [In reply to]	Can't Post

THERE ARE 2 CAPS DIRECTLY BEHIND THE FLYBACK THAT CAUSE THIS TROUBLE

maverickr
User

May 3, 2010, 6:40 PM

Post #3 of 10 (1367 views)
Shortcut

Re: [shadetree] Zenith B27B40Z [In reply to]	Can't Post

Thanks. I see that they are 471 picofarad ceramic disc caps but I don't see a voltage rating. Can I replace with any voltage rating?

jts1957
Veteran

May 3, 2010, 8:57 PM

Post #4 of 10 (1365 views)
Shortcut

Re: [maverickr] Zenith B27B40Z [In reply to]	Can't Post

2 or 3 kilovolt should suffice.

-------------------------
Location: Far, Far Away

maverickr
User

May 5, 2010, 8:10 PM

Post #5 of 10 (1362 views)
Shortcut

Re: [jts1957] Zenith B27B40Z [In reply to]	Can't Post

thanks!

maverickr
User

May 12, 2010, 1:21 AM

Post #6 of 10 (1340 views)
Shortcut

Re: [jts1957] Zenith B27B40Z [In reply to]	Can't Post

Can i use 470pf to sub for 471pf? can't find 471pf anywhare.

jts1957
Veteran

May 12, 2010, 1:45 AM

Post #7 of 10 (1337 views)
Shortcut

Re: [maverickr] Zenith B27B40Z [In reply to]	Can't Post

Would you like 47 dollars or 470 dollars?

That one digit makes a lot of difference. Wink

Edit: Examples:
2KV
http://search.digikey.com/...amp;name=445-2742-ND
3KV
http://search.digikey.com/...amp;name=445-2763-ND

-------------------------
Location: Far, Far Away

(This post was edited by jts1957 on May 12, 2010, 1:53 AM)

maverickr
User

May 14, 2010, 4:38 PM

Post #8 of 10 (1322 views)
Shortcut

Re: [jts1957] Zenith B27B40Z [In reply to]	Can't Post

In Reply To

Would you like 47 dollars or 470 dollars?

That one digit makes a lot of difference. Wink

Edit: Examples:
2KV
http://search.digikey.com/...amp;name=445-2742-ND
3KV
http://search.digikey.com/...amp;name=445-2763-ND

thanks jt. so it is ok to use the 470pf?

jts1957
Veteran

May 14, 2010, 5:54 PM

Post #9 of 10 (1321 views)
Shortcut

Re: [maverickr] Zenith B27B40Z [In reply to]	Can't Post

Would you like to be paid $47 (47pfd)

OR

Would you like to be paid $470 (470pfd)?

You can't be that dense - or can you? Crazy

-------------------------
Location: Far, Far Away

mel
Veteran

May 16, 2010, 12:27 AM

Post #10 of 10 (1310 views)
Shortcut

Re: [maverickr] Zenith B27B40Z [In reply to]	Can't Post

YES. I do not have the schematic of that exact model but one of a close number shows that as a 470pf 500v cap.

(This post was edited by mel on May 16, 2010, 12:44 AM)

Print Thread

Search for (options)

- Page loaded in: 0.12 s on (CGI/1.1)