VCR Panasonic NV-HD640 weird

[Bram Stolk]

After replacing its broken RH tape gear loading arm, the macine acts weird:
When casette is inserted it automatically starts to Play Back at much higher
speed than normal (No sound/No video). Mode Select Switch is properly
engaged and Function Key commands appear properly on LCD but the machine
does not respond to pressing any function keys. .
Only way to get tape Ejected is to cycle mainpower and holding Eject button
while mainpower is reapplied.
Any suggestion(s) ???

 

[Mark D. Zacharias]

After replacing its broken RH tape gear loading arm, the macine acts
weird: When casette is inserted it automatically starts to Play Back
at much higher speed than normal (No sound/No video). Mode Select
Switch is properly engaged and Function Key commands appear properly
on LCD but the machine does not respond to pressing any function
keys. . Only way to get tape Ejected is to cycle mainpower and holding
Eject
button while mainpower is reapplied.
Any suggestion(s) ???

Sounds like maybe the mech timing didn't wind up quite right after you
replaced that arm.

Mark Z.

 

[Bram Stolk]

TY, could be Mech rigging error, but where ? All gears have their pinholes
properly aligned. Is there any procedure for the proper alignment of the
rack & pinion gear for my loading arm ?

 

[Mark D. Zacharias]

TY, could be Mech rigging error, but where ? All gears have their
pinholes properly aligned. Is there any procedure for the proper
alignment of the rack & pinion gear for my loading arm ?

Wish I could have helped more, but my advice was generic in nature. I have
no experience with your exact model.

Mark Z.