B
Brad
Guest
Hi,
Update, More Information (9-2064, not 2065) Sams 4265:
I found a schm. for a different model Zenth that has the TA1268N
(56 pin) IF/Video Processor IC. The P-P chroma signal input on
pin 45 is well below the .8V P-P on schm. I wicked out the pin to
see if it is "pulling down" the signal. It isn't (no change). The crystal
CR2201 is oscillating at 3.580.245 (around), not 3.579.454 using a
network TV signal into tuner.
The schematic, Profax 3202 from a service magazine, does NOT show
the source for the chroma signal to pin 45 of ICX2200.
Original message:
I have a Zenith TV 9-2064 (mfg 1999) in my shop, no color, good
B&W (I checked color setting). However, the menu is in color. This could
have been caused by a power surge, but the customer isn't sure. I do not
have schm. What is the most likely cause?
Thanks in advance, Brad
Before you type your password, credit card number, etc.,
be sure there is no active key logger (spyware) in your PC.
Update, More Information (9-2064, not 2065) Sams 4265:
I found a schm. for a different model Zenth that has the TA1268N
(56 pin) IF/Video Processor IC. The P-P chroma signal input on
pin 45 is well below the .8V P-P on schm. I wicked out the pin to
see if it is "pulling down" the signal. It isn't (no change). The crystal
CR2201 is oscillating at 3.580.245 (around), not 3.579.454 using a
network TV signal into tuner.
The schematic, Profax 3202 from a service magazine, does NOT show
the source for the chroma signal to pin 45 of ICX2200.
Original message:
I have a Zenith TV 9-2064 (mfg 1999) in my shop, no color, good
B&W (I checked color setting). However, the menu is in color. This could
have been caused by a power surge, but the customer isn't sure. I do not
have schm. What is the most likely cause?
Thanks in advance, Brad
Before you type your password, credit card number, etc.,
be sure there is no active key logger (spyware) in your PC.