pioneer sx1500td blowing fuse
Posts: 1,475
Threads: 69
Joined: Nov 2012
City: Kansas city, MO.
(01-31-2015, 09:22 PM)morzh Wrote: No, ain't no expert in that.
But before going inside, I would try to (even though I think they are OK) bypass all circuits between MPX unit and control amp by disconnecting everything first from MPX's L/R outputs, and from Con amp IN1 and IN2 inputs and then connecting them respectively L to IN1 and R to IN2.
If it is still low vol, then further exploration into FM circuitry is warranted.
I tried what you suggested. But want to be clear on if I did it correctly.
Unhooked the L & R wires from MPX output pins. Unhooked Con. amp IN 1 & IN 2 wires.
Used jumper wires and connected one to each wire that I had removed from MPX board L/R .Then hooked the other end of each jump wires to each pin( -L to IN 1) & (R to IN2) of Con. amp. I powered up this way on variac and all I got was a hum from the speakers.
I don't know if this is helpful but touching/scratching/tapping, the chassis or the switches with no knobs causes a scraping and or tap sound out of speakers.
Messages In This Thread
RE: pioneer sx1500td blowing fuse - by KCMike - 02-01-2015, 08:55 PM
Users browsing this thread: 1 Guest(s)
|
Recent Posts
|
PT 6 chassis screws size???
|
Hello bridKarl,
that sounds right or maybe 8/32 .
Sincerely Richardradiorich — 01:00 AM |
PT 6 chassis screws size???
|
Have this done except for missing chassis screws.
It looks like 1 inch 6/32 sheet metal screw may work but can anyone s...bridkarl — 10:32 PM |
Philco model 38 code 121 not receiving signal.
|
Hello Stormlord,
Well done on rewinding that coil it turned fairly good for your first one.
Sincerely Richardradiorich — 09:12 PM |
Philco model 38 code 121 not receiving signal.
|
Well here it is. It ain't pretty, but hopefully it'll work.
I checked it with my DMM on continuity and it keeps and r...Stormlord5500 — 08:56 PM |
Philco 42-345 Restoration/Repair
|
Yes, 57 is an electrolytic cap that should be 12 mfd 400 volts according to the parts list from the Phorum library schem...RodB — 06:01 PM |
Philco 42-345 Restoration/Repair
|
Looks like if I am reading it correctly it looks like the silver capacitor#57 that appears to be a replacement is of a l...osanders0311 — 05:09 PM |
Philco model 38 code 121 not receiving signal.
|
Thanks Arran. Yeah this plastic is pretty thin. It's a little thinner than the original stuff. It kinda reminds me of p...Stormlord5500 — 04:37 PM |
Testing a speaker and output transformer Trutone A2-G
|
The equivalent of one short turn is basically the same as that of a shorted load.
If it is the primary's turn, then the ...morzh — 03:53 PM |
Testing a speaker and output transformer Trutone A2-G
|
I've never had an output transformer become shorted, the failure mode is usually an open primary, or in a center tapped ...Arran — 03:52 PM |
Philco model 38 code 121 not receiving signal.
|
As long as the plastic sheeting isn't too thick, I think that the thickness of photographic film would be just about rig...Arran — 03:19 PM |
Who's Online
|
There are currently no members online. |
|

|