Mitsubishi PIP Bypass - Help
 

My Mitsubishi CS-35601 has a bad PIP board. Replacing all the caps is beyond
my level of incompetence, but I think I could handle making a bypass.
Searching newsgroups and the web I found a few different configurations for
the bypass and I would appreciate some help in making sure I get it right. I
pulled the board and found the following identification information.

The part number on the board is 930B552.
There is a paper tag on the board with the ID P05010865

Help in getting this right would be greatly appreciated.

Thanks in advance - Joel

7 Mitsubishi PIP bypass sites:

http://members.aol.com/philselectron...ages/pipby.jpg
http://intrepid-video.com/techhelp.h...P_modification
http://members.aol.com/philselectronics/images/pip.gif
http://www.iwaynet.net/~nesda/mitspip.html
http://www.iwaynet.net/~nesda/Nov01/Nov13.html
http://www.iwaynet.net/~nesda/Dec01/Dec15.html
http://www.iwaynet.net/~nesda/Feb02/Feb14.html

The following is the "official" mod from MGA -

1) Parts req'd - two 22uf@50V NP electrolytic caps
2) Remove existing PIP module
3) Install one cap from pin 5 to pin 11 on the VP connector
4) Install the other cap from pin 7 to pin 9 on the VP connector

I Found A Combination That Works To Bypass The Pip 05 Module. Hook Up A
..01 Cap Between Pins 7 And 9 Of Vp. Place A 47uf@50v Elec. Cap Positive
Lead On Pin 5 Of Vp Plug. Solder The Neg Lead To A 4700 1/2 Watt Res &
Solder The Other Res Lead To Pin11. Solder A 2700 Ohm 1/2 Watt Resistor
From Pin 11 To Pin 9 Along With The .01 Cap. This Combo Produces Very
Good Color & Sync On All Channels.


Found This One The Sci.Electronics.Repair Forum....Did Not Try It Yet
But May Be A Good Fix !

What We'Ve Done For This Model Is To Put A 2.7k And 4.7k Resistor In
Series With The (-) Leg Of The 47uf Cap To Ground And Tap The Junction
Of The 2 Resistors And Run That To Pin 11. A Simple Voltage Divider.
Did A Lot Of Experimenting With Potentiometers To Determine The Values
Needed. You Could Always Use A 10k Pot To Do This And Would Have
Something That Is Adjustable. You Will Need About 1.7v P-P At Pin 11
When Done Instead Of Around 2.7v P-P That You Get When Simply Bypassing
With That 47uf Cap

here's another

Change R7050 1.2k , R7024 1.8k , R7051 1.8k , R7002 1.5k R7034 Should
Be 0 Ohm And May Already Be That Value R7011 Remove And Discard. R7029
470k And May Already Be That Value


Sidney

Dartmouth,Nova Scotia
Canada
http://www.iwaynet.net/~nesda/May02/May18.html
http://www.iwaynet.net/~nesda/SonyAudMod.html
http://www.newark.com/product-detail...ge/32-9495.jpg
http://www.iwaynet.net/~nesda/Oct02/Oct028.html
http://www.iwaynet.net/~nesda/Oct02/Oct029.html
http://www.iwaynet.net/~nesda/Oct04/Oct041.html

Thanks Sidney for the reply. In my web and NG searches, I did find most of
the references you cited. My problem is too much information. I am not a
tech and rebuilding the board is clearly beyond my abilities. There are
several references to different bypass configs that I could probably put
together but I am not in a position to make a rational choice between them.

Does anyone know of a bypass fix that WILL work well with the CS35601 with
all video inputs?

I've also seen a bypass kit on sale at eBay for $15 from TipsMaster color TV
Repairs. Does anyone have any info on what this consists of and whether it
will work on a CS35601? Other pre-made bypasses?

Another option is to try to find someone to rebuild the board for me or find
a rebuilt board. Any suggestions?

I really don't want to put a lot of money into a 15+ year-old TV so am
looking for low-cost options.

Thanks in advance - Joel

wrote in message
ups.com...
7 Mitsubishi PIP bypass sites:

http://members.aol.com/philselectron...ages/pipby.jpg
http://intrepid-video.com/techhelp.h...P_modification
http://members.aol.com/philselectronics/images/pip.gif
http://www.iwaynet.net/~nesda/mitspip.html
http://www.iwaynet.net/~nesda/Nov01/Nov13.html
http://www.iwaynet.net/~nesda/Dec01/Dec15.html
http://www.iwaynet.net/~nesda/Feb02/Feb14.html

IIRC with the XX601 models you have to compensate for the different input
and output levels of the video for the PIP module. It is a little more
complex than a simple cap bypass. Look at the NESDA Ohio site links for the
specific answers to your question.

Leonard

"Joel Elias" wrote in message
...
Thanks Sidney for the reply. In my web and NG searches, I did find most of
the references you cited. My problem is too much information. I am not a
tech and rebuilding the board is clearly beyond my abilities. There are
several references to different bypass configs that I could probably put
together but I am not in a position to make a rational choice between
them.

Does anyone know of a bypass fix that WILL work well with the CS35601 with
all video inputs?

I've also seen a bypass kit on sale at eBay for $15 from TipsMaster color
TV
Repairs. Does anyone have any info on what this consists of and whether it
will work on a CS35601? Other pre-made bypasses?

Another option is to try to find someone to rebuild the board for me or
find
a rebuilt board. Any suggestions?

I really don't want to put a lot of money into a 15+ year-old TV so am
looking for low-cost options.

Thanks in advance - Joel

wrote in message
ups.com...
7 Mitsubishi PIP bypass sites:

http://members.aol.com/philselectron...ages/pipby.jpg
http://intrepid-video.com/techhelp.h...P_modification
http://members.aol.com/philselectronics/images/pip.gif
http://www.iwaynet.net/~nesda/mitspip.html
http://www.iwaynet.net/~nesda/Nov01/Nov13.html
http://www.iwaynet.net/~nesda/Dec01/Dec15.html
http://www.iwaynet.net/~nesda/Feb02/Feb14.html