[QuadList] Seeking the wisdom of thy list

Chill315 at aol.com Chill315 at aol.com
Mon Jun 27 16:37:06 CDT 2011


I will try to give you background.
 
First the 2 F, 4 F and 8 F question.
 
2 F is the mode that the capstan will lock to the black and white  frame.  
This means that the scan lines are now being reproduced at the same  time as 
the reference sync generator.
 
4 F is for NTSC so that the color signal is framed with the  reference sync 
generator.  This is done so that there is not a half  cycle of sub carrier 
shift in the picture with respect to the Horizontal  Sync.  This is the 
preferred method for NTSC playback but not an  absolute necessary.
 
8 F is the PAL equivalent for color playback.
 
Now the lack of lock.  It is most likely not the tape brand.   First 
because you have an error message, are you feeding a reference sync of  know good 
quality to the machine?
 
The SV-90 error may indicate the same thing.  There are the pull out  cards 
at the bottom of the control panel that should help with the error  
messages.
 
Is the reference color phase LED indicator in the center of its'  range?  
 
Next if these are not the problem, take a look at the monitor output and  
see if you can tell anything about the quality of the RF envelope.  Try  
turning off Dynamic Tracking and manually track the tape.
 
It has been a long time since I played with a 3100 so this is all from  
memory.
 
Chris Hill
WA8IGN
 
 
In a message dated 6/27/2011 4:27:02 P.M. Eastern Daylight Time,  
srdbx at netvision.net.il writes:

As a  newbie to 1" inch I have observed a few things that I would like to 
have  your input:
1. My machine was broken (a Sony bvh-3100ps). After hours on  the bench 
and many caps replaced we got to the point where it would turn  on, test 
itself and say it had trouble. I managed to find a person kind  enough to 
offer me extra boards to test and find out what is wrong. It  turned out 
to be board #2 (SY-103). The machine now plays tapes.
2. I  have 3 different tapes on hand. A Sony v1-k, an Ampex 196, and a 
Scotch  479. The Sony played from beginning to end without a problem. The 
other  two didn't lock. The cap and mode lights keep blinking and the 
display  show sv-90 ref and TBC ref flashing.
3. There are so many parameters there  that I have no idea what to do 
with. I have no manual printed but have  PDF. I will try to print the 
first part to see about setup, but any  suggestions are welcome.
4. What is the difference in the capstan lock mode  between 2,4 and 8?

Humbly yours
the  newbie

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