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——__
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AC milli-voltmeter
instrument
—3.8 + 3dBs (at 21pin jack)
Test point
Specification
instrument
Mode
Playback
Specification
-7.8 7285 (at 2ipin jack)
VC-M29GM/M49GM
VC-M26SM/M46SM
VC-M261SM/M461SM
Measuring
instrument
Oscilloscope
Test point
Full erase head
. Put the unit in record mode.
2. Connect an oscilloscope across thefull erase head.
3. Make sure the erase voltage across the full erase
head is approx. 40Vp-p or more and frequency is 70
+ 5kHz.
RF CIRCUIT ADJUSTMENT
Measuring
DC voltmeter and VHF signal
instrument
generator
(EBU colour bar signal at 87.5%
VR101 AGC control
87.5% modulated.) at Input field strength: 56dBuV
3. Adjust VR101 (AGC control) in the IF pack so that the
RF signal at £12-CH (by VHF sig-
modulated.)
Specification
§.3+0.2V
1.
of antenna terminal.
voltage be specified.
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