Sony SVO-1610

C

Craig Petersen

Guest
I have a Sony SVO-1610 VTR when I press the "menu" button on the remote
the menu information is NOT displayed on the screen of my TV (even when
I use the RF out),the TV just gives a "no video signal" indication. The
model I have has BNC jacks for composit IN/OUT and also has the 8 pin
"TV" connector on the back. I currently have the TV connected to the BNC
out jack, but would like to find the pinouts for the 8 pin TV jack on
the back.

1. Is the menu info only sent out on the 8 pin TV jack????
2. Can someone supply me with the pinouts of the 8 pin TV jack?


Thanks in advance
 
I have a Sony SVO-1610 VTR when I press the "menu" button on the remote
the menu information is NOT displayed on the screen of my TV (even when
I use the RF out),the TV just gives a "no video signal" indication. The
model I have has BNC jacks for composit IN/OUT and also has the 8 pin
"TV" connector on the back. I currently have the TV connected to the BNC
out jack, but would like to find the pinouts for the 8 pin TV jack
1. Is the menu info only sent out on the 8 pin TV jack????
2. Can someone supply me with the pinouts of the 8 pin TV jack?
Click to expand...
Craig,
Go inside the front panel trap door and turn off the SEQ PLAY
switch if it's on. Sequential playback disables the menu display.
Otherwise, the menu should come up on the RF and BNC video outputs
whenever it's called up. For the 8 pin EIAJ connector, pin 2 is audio
out and 1 is audio ground, pin 4 is video out and 3 is video ground. The
other four pins are not used. The active outputs on that connector are
buffered but come from the same source as the BNC/RCA outputs.

Ray
--
My return addy is fake. To reply, remove the zeroes.
 
Ray wrote:
I have a Sony SVO-1610 VTR when I press the "menu" button on the remote
the menu information is NOT displayed on the screen of my TV (even when
I use the RF out),the TV just gives a "no video signal" indication. The
model I have has BNC jacks for composit IN/OUT and also has the 8 pin
"TV" connector on the back. I currently have the TV connected to the BNC
out jack, but would like to find the pinouts for the 8 pin TV jack
1. Is the menu info only sent out on the 8 pin TV jack????
2. Can someone supply me with the pinouts of the 8 pin TV jack?


Craig,
Go inside the front panel trap door and turn off the SEQ PLAY
switch if it's on. Sequential playback disables the menu display.
Otherwise, the menu should come up on the RF and BNC video outputs
whenever it's called up. For the 8 pin EIAJ connector, pin 2 is audio
out and 1 is audio ground, pin 4 is video out and 3 is video ground. The
other four pins are not used. The active outputs on that connector are
buffered but come from the same source as the BNC/RCA outputs.

Ray
--
My return addy is fake. To reply, remove the zeroes.
Click to expand...
I have tried this, the SEQ PLAY switch was set to the off position. I
even tried setting it to the on position and and tested to see what it
dose and it does disable the menu button. Switching it back allows the
menu button to work but there still is no video, I even confirmed the
absence of a video signal with my Tektronix 2465.

The video signal is there during normal play but when I go into menu
mode there is NO signal at all(not even blank video). This tells me the
microcontroller and video switching circuits are working but for some
reason the video for the menu isn't getting routed to the connector. The
only thing I can come up with is either a buffer amp for the menu video
is bad or the video generator for the menu controller is no longer working.

Does anyone know if this was a common failure on these units? Since I do
not have a service manual for this unit I'm kind of stuck.

Any thoughts??


Thanks

Craig
 
The video signal is there during normal play but when I go into menu
mode there is NO signal at all (not even blank video). This tells me the
microcontroller and video switching circuits are working but for some
reason the video for the menu isn't getting routed to the connector. The
only thing I can come up with is either a buffer amp for the menu video
is bad or the video generator for the menu controller is no longer working.
Click to expand...
Craig,
By any chance did you get that machine from the University of
Washington (Seattle campus) Surplus? It may have been stolen, since we
don't normally surplus newer decks like that unless they're economically
unrepairable. We have a number of them here at the U and have
intentionally disabled the OSD so the instructors don't have to fiddle
with the remote to turn it off every time they want to play a tape for
their class. My mod was to remove a board jumper wire. That jumper
couples OSD control data from the micro to the OSD generator chip. Look
for J1511 on the main board on top of the deck on the left side near the
power supply. If one of the wires of that jumper (installed on the
underside) is disconnected or the jumper removed, that's one of our
decks. No way to tell how it got out of here.

Ray
--
My return addy is munged. To reply, remove the zeroes.
 
Ray wrote:
The video signal is there during normal play but when I go into menu
mode there is NO signal at all (not even blank video). This tells me the
microcontroller and video switching circuits are working but for some
reason the video for the menu isn't getting routed to the connector. The
only thing I can come up with is either a buffer amp for the menu video
is bad or the video generator for the menu controller is no longer working.


Craig,
By any chance did you get that machine from the University of
Washington (Seattle campus) Surplus? It may have been stolen, since we
don't normally surplus newer decks like that unless they're economically
unrepairable. We have a number of them here at the U and have
intentionally disabled the OSD so the instructors don't have to fiddle
with the remote to turn it off every time they want to play a tape for
their class. My mod was to remove a board jumper wire. That jumper
couples OSD control data from the micro to the OSD generator chip. Look
for J1511 on the main board on top of the deck on the left side near the
power supply. If one of the wires of that jumper (installed on the
underside) is disconnected or the jumper removed, that's one of our
decks. No way to tell how it got out of here.

Ray
As a matter of fact I traded for this unit from a place called Pats New
Click to expand...
and Used (traded an old Mac for it). It was amoung tvs and other VCRs
that all had U of W asset stickers on them, so it's probally not stolen
since this guy buys lots of stuff from U of W (old test gear, Umatic and
VHS VTRs etc.. I will take a look inside and see if this jumper has
been cut. This unit is in exelent condition both physical and operating
except for the no menu problem. Judging by dim "G" segments in the clock
display I can assume the clock was never set.

Thanks for the help Ray, I'll let you know what I find....


Craig
 
Ray wrote:
The video signal is there during normal play but when I go into menu
mode there is NO signal at all (not even blank video). This tells me the
microcontroller and video switching circuits are working but for some
reason the video for the menu isn't getting routed to the connector. The
only thing I can come up with is either a buffer amp for the menu video
is bad or the video generator for the menu controller is no longer working.


Craig,
By any chance did you get that machine from the University of
Washington (Seattle campus) Surplus? It may have been stolen, since we
don't normally surplus newer decks like that unless they're economically
unrepairable. We have a number of them here at the U and have
intentionally disabled the OSD so the instructors don't have to fiddle
with the remote to turn it off every time they want to play a tape for
their class. My mod was to remove a board jumper wire. That jumper
couples OSD control data from the micro to the OSD generator chip. Look
for J1511 on the main board on top of the deck on the left side near the
power supply. If one of the wires of that jumper (installed on the
underside) is disconnected or the jumper removed, that's one of our
decks. No way to tell how it got out of here.

Ray
Click to expand...
Thanks for the tip Ray, I opened the unit and found one leg of J1511
lifted from the board. One quick touch-up with the soldering station and
all is well. Now I just need a owners/service manual and I'll be set :)


Thanks again :)


Craig
 
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