Sharp VC-M29GM Serviceanleitung Seite 9

5. ELECTRICAL ADJUSTMENT
Notes:
• Before the adjustment:
Electric al adjustmen ts d discusse
cal partssuch as videoheads.
k Chec thatthemechanism a ndallelectric c omponents areingood working c ondition priorto theadjustments,
otherwiseadjustmentscan notbe completed.
• Instruments required:
O Colour TV monitor
O Audio signal generator
O DC voltmeter
O Blank video cassette tape
O Screwdriver for adjustment
O Colour bar signal generator
X Servicing precations
n Whe theIC703 ( E2PRO M)
(E2PRO M) hasbeenfactry-adjusted forit'smemory f unction.
It'stherefore necessary to reprogram thememory f unction forthemodel i nquestion.
Note thattheservocircuit r equires r eadjustments fortheheadswitching p oint, s lowandstillmodes.
• Location of controls and test points
e-
3.3
O
naoeøa
here are often r equired after r eplacement
o
O AC milli-voltmeter
O) Frequencycounter
O Alignmenttape (VROCPSV)
O Alignment tape (VROATSV)
O Alignmenttape (VROCBFFS)
has been replaced, make t he following reprogramming.
a 00
eae
o
Figure 5-1 .
ofelectronic components
Dual-trace oscilloscope
—32.2.42.9
ii
9
VC-M29GWM49GM
vc-M26SWM46SM
VC-M261SWM461SM
and mechani-
Depending onmodels, theIC703