PRESIDENT uniden BENJAMIN UT-552B, Service Manual, Page: 30 / 77

C. ALIGNMENT PROCEDURE
1. Electro Static Discharge Test
Method : Set equipment and devise as per illustration below.
Set voltage of equipment to 15 KV.
Discharge Cap : 150 PF
Discharge Res : 500 OHM
ELECTRO STATIC SIMULATOR
a) Test must be done for ail combinations of all Controls and switch's
conditions
b) Discharge should be made 3 times with 10 seconds intervals for ail
control knobs, switch knobs, connectors and display window.
c) Repeat similar test as above with opposite polarity of charge
(Disconnect Dummy ANT. for test of ANT Connector)
d) If the abnormal operation of the D.U.T. was observed, then once
push power switch of D.U.T. off and on again. If D.U.T. operate
satisfactory then D.U.T. be passed otherwise reject.