|
|
Post by vaguy22 on Dec 26, 2016 19:44:30 GMT
Hello all I have a Seeburg AY 160 with a TSR 7 It blows the 5v amp main fuse whenever I make a selection. Any ideas? Thank you in advance. Norman
|
|
|
|
Post by Ron Rich on Dec 26, 2016 22:23:21 GMT
Hi Vaguy,
Yep--I gotz lottza "ideas" !
First of all, UNPLUG that phono from the wall till this is fixed !! then please 'splain me the following--
1. What is the model number of your phono--(an AY 160 should not be equipped with a TSU-7 ?)
2. What type "5 Amp fuse" was originally in that phono, and what type are you using ?
3. Is this a phono you just got, or have you had it awhile ?
4. Have you moved the cabinet since it worked--have you REmoved the mechanism, since it worked ?
5. Is the reversing switch paddle touching either stationary "flip lever" ?
Ron Rich
|
|
|
|
Post by vaguy22 on Dec 27, 2016 3:40:26 GMT
Model AY-160 I know it is suposed to have a TSU5 however it has a 7-*** Fast blow 5 amp*** just got it. It had a burnd out power transformer in the tsu 5 got a 7 from coin op warehouse. renewed ALL eletrotyic caps freed up mech motor tested without making any selections and it scanned back and forth ok.***** cabinet has been moved--Mech has been removed.***paddle switch NOT touching anything.. Also when selection is made and fuse blows play control add solenoid does not activate.. yes, i have the shop manual as well as your mech overhaul manual Thanks for your help. Norman
|
|
|
|
Post by Ron Rich on Dec 27, 2016 3:45:09 GMT
Hi Norman,
OK--Look at the mech plug --see if the indexing post has broken off it ? Install a 3 A FB into the TSU--Leave mech plug, and AC plug for the flour. lamps, out, and make a selection-- fuse blow, or not ? ONCE AGAIN--need MODEL NUMBER of phono ! Ron Rich
|
|
|
|
Post by vaguy22 on Dec 27, 2016 3:54:38 GMT
more info model is achually AY 160R. it has the stepper chassis in it pricing unit is USPU1 33 1/3 unit is bypassed.
|
|
|
|
Post by vaguy22 on Dec 27, 2016 3:57:49 GMT
Model is AY 160 R am going to bed now will work on this tomorrow. I am on the east coast will try your test tomorrow Thanks again. Norman
|
|
|
|
Post by Ron Rich on Dec 27, 2016 4:01:59 GMT
Norman,
No- if it has a USPU it is an AYxx U model An AY can have one of three other pricing unit types--A CAU, SPU, or a DPU. And since the Autospeed is out of the circuit, it is no longer a n "AY", it's now a "Y" model. Ron Rich
|
|
|
|
Post by Ron Rich on Dec 27, 2016 4:05:28 GMT
OK--nighty - night !!
|
|
|
|
Post by robnyc on Dec 27, 2016 4:18:00 GMT
If the following is correct:
-You have gotten the mech to "go back and forth" -powered.
-Fuse blows at the point where a selection would be written-in.
There is likely a shorted coil in either the scan add coil or the cancel coil in the credit unit.
I have several 201's and a modded K in service. Were it nor for my adding fuses to the transformer secondaries, this sort of problem would probably have been fatal to the transformers in the TSU6&7 units I use.
The 25vac output should have a 4 amp-slow.
Rob-NYC
|
|
|
|
Post by Ron Rich on Dec 27, 2016 15:04:48 GMT
Hi Rob,
With the USPU/UDPU/APU series pricing units, up to the UDPU-6, Code B, Seeburg had a design problem with the design of the scan start, and meter pulse, switches. They attempted several "cures" but were unable to really fix it till the-6B. On the older ones, one or more of the switch blades PARTLY broke, and would "stick together" for too long, thus blowing the main fuse ( iffin you waz "lucky"), or the power trannie ! I fuse the transformer primary ( NOT the whole phono !), with an added, 3 A. SB., and the 24 VAC with a 7 A FB. ( The 24 VAC is fused in later models starting with the LPC-TCC's with a 15 A fuse that should be changed to a 7.5 on the phono's having a "latch bar solenoid", and the latch bar solenoid itself on all phono's, should be fused with a MAX 3 amp FB.)
|
|
|
|
Post by vaguy22 on Dec 28, 2016 0:13:08 GMT
found the problem shorted wires going to cap across scan add coil now to finding out whu as mech brings up record trip soleniod energises even with the 2050 tube OUT of it's socket. Thank you Ron and Rob for your help. Norman
|
|
|
|
Post by Ron Rich on Dec 28, 2016 0:34:42 GMT
Hi Norman,
Are you sure of that ?? Are you positive it's powered -- not just "hanging-up" ?? The 2050 provides the ground for that coil--check the coil-- Should have around 400 ohms resistance --check for an internal short to ground thru the sleeve ? FUSE that coil at 1 amp,FB. on the orange/white- white wire, going from the TSU to the coil ! Ron Rich
|
|
|
|
Post by vaguy22 on Dec 28, 2016 1:41:15 GMT
Thank you Ron it is definiatly powered,can push down on lever and feel the resistance. Will try tracing that out tomorrow and report back on coil resistance. Thank you Norman
|
|
|
|
Post by Ron Rich on Dec 28, 2016 3:53:33 GMT
Norman,
Careful--shorted HV trip coils are noted for blowing the main transformer--FUSE it before "playing around" !!
|
|
|
|
Post by robnyc on Dec 28, 2016 14:07:00 GMT
Ron, I have 250 ohm on trip for all the V through 201. 500 Ohms the early steppers and 700 on the later ones.
Norman, something seems odd here. Bobbin shorts are extremely rare -but given the travel of the solenoid it can happen.
Turn off all power. Unplug the two round mech plugs then measure both across the two wires from the coil and from each wire to the mech casting while pulling up the manual trip lever. Obviously, we are looking for any errant short or connection from that coil to ground. You should see approx 500 ohms across the coil and infinity from the wires to mechanism casting.
I add a 1/2 amp-slo at the 150vac output from the main tran. Fusing the trip and stepper individually might be better tho.
I believe Vern Tisdale still sells trip coils. Or you can unwind that one and add a thin layer of tape around the outside of the bobbin before putting the wire back on. That is what I've done on solenoid coils that are shorted and I didn't have a spare (I am cheap too).
Rob
|
|
