B
Brad
- Jan 1, 1970
- 0
Hi,
Thanks to everyone who responded.
I replaced the jungle IC, "ICX2200" TA1268N and that restored the
color. I made an error in my previous message when I reported that
the chroma signal input on pin 45 was well below the .8V P-P. Later, I
noticed that the Chroma level setting on my Sencore "Color Circuit Analyzer"
was turned down, not at the 100% position. At 100%, the level was .5V P-P.
Brad
Before you type your password, credit card number, etc.,
be sure there is no active key logger (spyware) in your PC.
Previous message:
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 to everyone who responded.
I replaced the jungle IC, "ICX2200" TA1268N and that restored the
color. I made an error in my previous message when I reported that
the chroma signal input on pin 45 was well below the .8V P-P. Later, I
noticed that the Chroma level setting on my Sencore "Color Circuit Analyzer"
was turned down, not at the 100% position. At 100%, the level was .5V P-P.
Brad
Before you type your password, credit card number, etc.,
be sure there is no active key logger (spyware) in your PC.
Previous message:
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?
