I N Trodu Ct I On; Ge N Eral; Rem Ov Ing T H E T O Pp An El - TANDBERG 3400 X Service Manual

1 .
I N TRODU CT I ON
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1.1 GE N ER A L
Only LH (Low Noise/High Output) tape should be
used for recording. Make sure that the heads and
tape path are clean.
To check the heads:
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l. Remove the front head cover by depressing the
spring loaded buttons at both ends and lifting
the cover straight upwards.
2. Remove the back cover by depressing the spring
on its rear side and lifting straight upwards.
When electrical adjustments are to be made, the
bottom panel must be removed.
The tape path must be degaussed both before and
after adjustment. Do not switch off the degausser
until it is about 3 feet from the tape path.
To make magnetized parts of the tape visible, dip
the tape in "Magna See". This is a mixture of iron
oxide powder and alcohol. Iron oxide powder can
be obtained from our service department.
A
NOTE! All paragraphs in this manual are valid for:
Model 3400X, from serial No. 4300 000
Model 3500X, all decks
Model 3600XD, from serial No. 4200 000
1 .2 RE MOV IN G TH E TO P PA NE L
Remove the head covers and the speed selector
knob. Then remove the screws as shown in Figure
1.1. Removal of the top panel will usually only be
necessary for checking and adjustment of clutches
and other parts in the drive mechanism.
Fi4.1.1. Top panel screu)s
.HHs..[n
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