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Notes on replacing the heads:
(3)
Tape Pass Adjustment
(See page 28)
1.
Erase Head Removal
(4)
Record Bias Adjustment
(See page 33)
When
removing
the erase head from the head deck,
(5)
Record Level Check (See page 34)
remove the two screws shown with a in Fig. 12-1.
(6)
Record
Equalizer Adjustment (See page 34)
(Do not remove
the three screws
shown
with xX in
(7)
Erase Ratio Measurement
(See page 35)
Fig. 12-1)
Record Head
.
(1)
Tape Pass Adjustment
(See page 28)
Record or P.B. Head Removal
(2)
Record
Bias Adjustment
(See page 33)
When removing the record or the p.b. head, remove
(3)
Record Head Azimuth
Adjustment (See page 32)
the respective angle adjusting screws.
(4)
Record Head Phase Check (See page 33)
(Do not turn the screws except the angle adjusting
(5)
Record Level Adjustment (See page 34)
screws.)
(6)
Record Equalizer Adjustment
(See page 34)
(7)
Overall Frequency
Response
(See page 36)
After replacing the heads, be sure the following items.
PB. Head
Erase Head
(1)
Tape Pass Adjustment
(See page 28)
(1)
The tape touches at the center of erase head
(2)
P.B. Head Azimuth and Angle Adjustments (See page 30)
cores.
(3)
P.B. Head Phase Check
(See page 30)
(2)
The tape comes
in contact
with the scrape
(4)
P.B. Output Level Adjustment (See page 30)
flutter filter roller in FWD mode.
(5)
P.B. Equalizer Adjustment (See page 31)
record head
zenith adjusting screw
height adjusting
screw
azimuth adjusting screw
A
erase head holding
adjusting screw
tape guide (left)
angle adjusting
azimuth adjusting screw
zenith adjusting Screw
screw
height adjusting screw
XX
:
2
p.b. head
CAUTION:
Do not remove the three screws marked with x.
Fig. 12-1
Adjusting parts location (1)
— 26 —
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