Toshiba vcr model:M-68C plays for 5 seconds then stops

Toshiba 4 head hi-fi stereo vcr model:M-68C,year:Aug 1999,CSA File
No:LL38329 (Samsung),pcb board model:M-685 (also VR8800),the vcr
plays,fast forwards or rewinds for about 5 seconds.During play the
idler wheel does not move only the capstan motor and pulley therefore
the vcr eats tape.
I cleaned the mode switch and inspected and cleaned the idler wheel
assembly but no go,according to a repair tip from:

http://intrepid-video.com/database/toshiba.htm

for a model:M-65C it states that the take up reel sensor (photo
interrupter) pcb locationT601=Toshiba # 70796241 or generic # SG-105L
is defective,is this true? if so can someone verify the part # for my
model as the above part is for model:M-65C as I looked at the part #
look up sites below but could not find it:

Part # lookup sites does not list it:

http://www.tritronicsinc.com/lookup_cs.htm
http://www.wehaveparts.com
http://www.partsolver.com/Default.asp
http://atv.partsearch.com/search.asp
http://www.vancebaldwin.com
http://brandsmartusa.partsearch.com/default.aspx
http://www.ceitron.com/semi/ceisemi.html
http://www.pacparts.com/scripts/whlsl.cfm
http://www.doubleo.com/ecom/main.php
http://www.mcmelectronics.com
http://www3.sears.com
http://www4.sears.com
http://www.radioshack.com/ProdSupport/ProductSupport.asp
http://www.radioshack.ca/en/templates/partlist.asp
http://www.timelapsesupply.com
http://www.pasc.panasonic.com/epartr
http://www.jvcservice.com
http://parts.pioneerelectronics.com/
http://nte01.nteinc.com/nte/NTExRefSemiProd.nsf/$$Search?OpenForm

I also look for my model at these free Toshiba service manual download
sites but could not find mine:

http://www7.toshiba.com/secured/tass/technical/vcr/vcrconts.asp
http://www7.toshiba.com/index2.htm
http://www7.toshiba.com/secured/tass/technical/vcr/vcrconts.asp
http://www7.toshiba.com/secured/tass/technical/dvd/dvdconts.asp
http://tacpservice.toshiba.com/TACP/training/VCR/vcr06f.pdf
http://tacpservice.toshiba.com/tacp/training/TV/MM20E45f.pdf
http://www.tacpservice.toshiba.com/TACP/training/module1/Mod1sg1.html
http://www.tacpservice.toshiba.com/tacp/training/Module3/Web/Mod3Titl.html
http://www.tacpservice.toshiba.com/tacp/training/Module3/NTDMod3.html
http://tacpservice.toshiba.com/tacp...omprehensive background progressive video.pdf

http://www7.toshiba.com/secured/tass/technical/dvd/SD5109.pdf
http://www7.toshiba.com/secured/tass/technical/dvd/SD9100.pdf

Nor could I find it here:

http://www.schematicsforfree.com
http://www.schematicsforfree.mattsoft.net
http://schematicsforfree.mattsoft.net
http://schforfree.seedhost.com
http://www.epanorama.net/schematicsforfree

then click on "click here to see the files" followed by "video"
followed by "products".Thanks in advance for help.

Sidney
E-mail:sidneybek(at)yahoo.com
Dartmouth,Nova scotia
Canada

 

If the idler wheel does not move, then the takeup reel remains
stationary. The uP detects this via the reel sensor and then shuts
down the mechanism. In short, there appears to be nothing wrong with
your reel sensor. Instead I'd be looking for a slipping belt or
slipping clutch or sticky brake pads. Also check that all rotating
parts move freely.

To assist in troubleshooting, and to avoid damaging your tapes, you
could make a dummy "cheater" cassette and turn the reel(s) by hand.

See http://www.repairfaq.org/sam/vcrfaq.htm#vcrcascheat

You should be able to find a point where the driving part is turning
but the driven part is not. Test the torque with your fingers. If you
suspect a motor, measure the voltage at its terminals.

- Franc Zabkar