Phonoland

Hi
Working on this rowe ami, haven't done much on these machines before. I have the manual and fuses all check out, my problems are...
the machine struggles to scan, theres a clacking type noise seems to be coming from the nylon gear, is the motor failing or is this a gear similar to a rockola stepper gear that seems to cause problems and needs replacing, any pointers on replacing it. The search arm doesn't work, found a broken pulley on the floor of the machine, are these readily available. On the plus side if i manually initiate a selection record is gripped and plays and returned to the magazine
clones

Hi
Just an update......Turns out the scan-off-open lever contacts were dirty and the annunciator cog was stiff causing the record magazine to struggle. The annunciator cog was causing the noise so its now removed. Have ordered a few pulleys for the search motor. Trying the selections manually seem to be out by one for example if i select G9 i get G8, so possibly the S1 and S2 relays need cleaning along with the slip rings, hard to test fully until i get the pulley on
clones

"Clones" the first thing to do (after oiling the motors) is to remove the search unit and determine if the stopping switch assembly is properly sync'ed with the magazine.

Here are the instructions:
http://s1192.photobucket.com/user/Rob-N ... rt=2&o=110

Hover mouse and click the fourth button to enlarge.

If you plow through my pages there you will find more Rowe 1100 instructions.
http://s1192.photobucket.com/user/Rob-N ... t=3&page=1

Rob/NYC

Thanks Rob, just to ask is there a knack to putting new pulleys on the search motor
clones

Hi Clones,

It may be best the remove the drive motor on its bracket to replace the pulley wheel, I take it that some of the cast teeth have broken off, if this is the case check out the idler wheel that the pulley wheel meshes with for any wear.

I do stock both of these if anyone needs them.

Regards
Alan

Alan Hood
ami-man
UK

Thanks Alan, I'll take a closer look later
regards
Clones

Hi
Just an update, i replaced the pulley's, i put two on, is it correct to have two in place, anyway the search motor now operates, the first few selections one of the pulley's came off, might have bee that i hadn't them correctly in place, made a few dozen more selections, the pulley's remained in place and the correct records were selected
clones

"Clones" you are talking about --belts-- not pulleys which are the wheels the belts ride on. I had wondered about that since I'd never seen a broken wheel or gear in those search units.

The two belts are just for redundancy. The earlier version of that search unit had direct gear linkages which were noisier and it can be heard through the speakers during a quiet record.

The belts make a quieter system, but they do begin to slip and break after a few years. If you look at the search motor there is a thermal cutout because the motor will run continuously and overheat if the process is not completed. In the two MM1 hideaways i have in service i replaced one search unit with the older gear type to avoid this problem. The added noise doesn't really register with the wallbox speakers.

Rob-NYC

It is usually the pulley drive wheel that looses teeth, but I have seen it happen on the idler wheel (the next gear) .
The earlier drive gear as Rob says was a direct drive but it had a built in clutch in case of jam ups, the earlier drive motors did not have a thermistor built into the windings but the later ones did, maybe this was done in case the search unit jammed up by a belt coming off the pulleys.
I have come across search units that have been on fire and also R-84 onwards mechanism control units that have been on fire, one of these totally burnt out the jukebox.

I remember in the late 70's early 80's people from the UK bringing back the search unit circuit boards in their hand luggage when visiting the USA.
A few operators in the UK tried etching the cards, the cards they produced lasted less than 6 months on site.
As far as I know nobody has perfected a copy board that works, on the original the tracks are compressed into the board so the tracks are flush with the board.

Regards
Alan

Alan Hood
ami-man
UK