Hi,

I had extra time on my hands after I posted (see below) my last message. I
removed the PIP module 9 - 1084 and I noticed IC2000 HA11569FS had some
corroded pins on three sides of the IC (SMD). In my experience, this is
usually the result of a spill or leaky electrolytic capacitor. The way this
is mounted, it couldn't have been a spill by the customer, but if it was a
leaking electrolytic capacitor/s, I couldn't find any evidence! I noticed
that this unit was once serviced (not by me). Could it have been a service
tech drinking a soda? I removed the "residue" and cleaned the corroded
pins. Now there is color. I ran the TV for over an hour (good color).

Brad

I have a Zenith TV SJ2573BG (mfg Sept 1991) main PCB 9 - 1133
with no color (good B & W picture). I don't have SM. I would like to
scope IC6000 221-774-02 which looks like a "jungle" IC, but I couldn't
find pin out information on the web.

Could you tell me which pins handle color? Please indicate
the process for each pin.

If I repair this problem, I will post an "update".

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.

On Wed, 04 Jan 2006 09:31:35 -0600, Brad wrote:

Hi,

I had extra time on my hands after I posted (see below) my last
message. I
removed the PIP module 9 - 1084 and I noticed IC2000 HA11569FS had some
corroded pins on three sides of the IC (SMD). In my experience, this is
usually the result of a spill or leaky electrolytic capacitor. The way
this
is mounted, it couldn't have been a spill by the customer, but if it was
a
leaking electrolytic capacitor/s, I couldn't find any evidence! I
noticed
that this unit was once serviced (not by me). Could it have been a
service
tech drinking a soda? I removed the "residue" and cleaned the corroded
pins. Now there is color. I ran the TV for over an hour (good color).



Possibly the glue holding the chip is corrording the board. I've seen this
a number of times in different sets.

As I recall there is one capacitor in the pip module and it does go bad
and leak out. It is not a super critical capacitor as it is being used
for the voltage on the board.