JLCooper PPS-2Plus - Manual

PPS-2 Plus, Installation and Operation
JLCooper Electronics, September 21, 1992
JLCooper Electronics
142 Arena Street
El Segundo, CA 90245
Greetings!
Thank you for purchasing the JLCooper Plus Option for the PPS-2. This Plus Option turns your PPS-2 into a
remarkably low-priced MTC to SMPTE converter. This permits your hard disk recorder to be the SMPTE master
to a machine synchronizer.
The Plus Option is an EPROM chip to replace the EPROM already in your PPS-2. After installation, your PPS-2
will function normally; all of the original features will remain unchanged. When MTC is sent into the PPS-2 set to
SMPTE / READ, longitudinal SMPTE is generated out of the SYNC OUT jack. The frame rate of the MTC is
preserved.
Warning
Performing this update requires the handling, removal, and replacement of an electro statically sensitive EPROM
IC. Improper handling may result in EPROM damage. Also, incorrect installation may damage the PPS-2 itself.
JLCooper cannot be held responsible for any damage incurred due to mishandling or improper installation! If you
have any doubts about your ability to perform this update, have a qualified person do it for you.
About Handling EPROM’s
The EPROM (Erasable Programmable Read Only Memory) included is a special integrated circuit that stores the
new Plus feature. It is sensitive to static electricity. Be sure to leave it in is protective metal foam until you are ready
to install it. This update should not be attempted on a dry, windy day, unless you have access to a grounded,
antistatic workstation. Do not handle the EPROM more than necessary and never carry it in your hand while
walking across a carpeted floor.
You will need a Phillips screwdriver, and a small, flat bladed screwdriver
Open the Chassis
To open a PPS-2, use a Phillips screwdriver to remove the four screws on the bottom of the unit that secure the
cover. Lift off the cover.
Sometimes the covers are tight. Use a flat screwdriver wrapped in masking tape to avoid scratching the chassis to
pry the cover open. The PPS-2 cover wraps around and can catch on the circuit board. So, open with care. Pry the
cover up just slightly, and shift it to one side before lifting off the cover. Don't let the cover catch on the circuit
board, which may result in damage to the PPS-2.
Locate the EPROM
Look at the EPROM already inside the PPS-2. It is designated as U4.
Observe the Notch
Observe that the EPROM has a small notch at one end. The EPROM's notch points toward the jacks, the same
orientation as the other ICs. It is very important that the new EPROM be inserted with the same orientation.
Otherwise, the EPROM may be destroyed and the sync box damaged.