Table Of Contents - TANDBERG 3400 X Service Manual

CONTENTS
l.
l. l
r. 2
,
2. 1
9 9
3.
3. 1
3. 2
3. 3
3. 4
c . c
3. 6
4.
4. 1
4. 2
4. 3
4.4
4. 5
5 .
5. 1
5. 2
5 .3
5 .4
c . 5
6 .
6 . 1
6. 2
6 .3
6 .4
6. 5
7.
7. 1
19
7. 3
8 .
8 .1
8 .2
8 .3
8.4
9.
9. 1
9. 2
10.
11.
11. 1
rt.2
11 . 3
Page
I nt ro du ct i on. . . .
.. ,.. ..3
Ge n eral
. ... 3
Rem ov ing t h e t o pp an el . .. ... .3
Ma in t e na nce. . . .
.. .,. ,.4
Cl e an in g t h et ap ep at h. .
.. ... ..4
Lu b ric at io n ... ... .4
Me ch an ica lch eck sa nd a dj us tm e nt s. . ... ... .5
Checking the take-up force and winding force. . . . . . 5
Ad ju s t ing t h et ake -u p fo rc e. ... .5
Ad ju s t ing t h e win d in gf orc e .
... 6
Ad ju s t ing t h eb r ak e s ... ..8
Ru b be r dr iv eb e lt .. ... ..8
Pre s su r ep ad a r m ... 9
Ta p ep at h ... 10
Cap st a n . ... .10
Hea d pa r alle l ism . . ... ... 10
Tape guide posts and guide screws. .. .. .. . . .11
Pi n ch rol ler . ... ... 11
Fl ut t e rr o ll e r .
. ... .12
Head alignment with Tandberg test tapes, four tracks . . . . .13
Play b ac khe a d. . ... 13
Re cor d he a d. . ... .13
He igh t ad jus t m en tb y tr ac k me as u re me n t... .. .. .. 13
Bias h ea d . ... I4
Era se he a d
. ..I 4
Head alignment without Tandberg test tapes, four tracks . . . . . . .15
Play b ac khe a d.
. ... 15
Re c ord he ad .
.. . ..15
Bias h ea d
. ... 15
Eras e he ad .
.. ... . .15
Aligning the hum shield for the playback head . . . . .15
He a da l ig nm en t , t wo t rac k s
.. . ..16
Play b ac khe a d. . ..16
Re c ord he ad . .. ... 16
Eras e he ad
.. ... .. . 17
Ci rc uit s
.. . ..77
Oscillator.
. . .I7
Pho t oe nd - s t o p
. ... ... .I7
Record and playback frequency responses
. . .18
Fa ult in th et o t a lr es po ns e c urv e ,o ne ch an ne l .....
... . ..19
Mod if i ca t ion s. . .
. ... .. .20
Ch a ng i ng t h eli ne vo lt ag e an d fre qu e ncy ...
. ... .. .20
Changing from four tracks to two tracks version
. . . .20
Bl ock diag r a m s
. .. .20
Elec t ri cala djus t m en ts . .. .
. . .. .22
Ou t p u t a mplif ie r s ( 34 0 0X )
.. ... 22
Do lb y*l e ve l ad ju st me n ts (3 60 0X D).
. ... .. .22
Ad ju st m e nt s ,a llmo de l s. .. .
... 23
Circuitdiagrams
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* The word Dolby is a Trade Mark of Dolby Laboratories Inc., USA
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