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Step
Adjustment
Item
Test Tape
Supply Signal
Mode
Adjustment
Point
Result
Remarks
I
FWD Playback
Level
700H2 7-l 12 ips
OVU Test Tape
FWD
VR3
50 kB
0 t 0 . 5 d B m
(0.77sv)
2
REV Playback
Level
7O0Hz7-112
ips
OVU Test Tape
REV
VR4
s0 kB
0 1 0 . 5 d B m
(0.77sv)
J
VU Meter
Sensitivity
700H27-l12 ips
OVU Test Tape
FWD
VR5
l k B
O V U
indication
,
FWD
Recording
Level
Scotch #2ll Tape
1 , 0 0 0 H z 0 d B m
Recording
F\ryD-REC
VR2
1 0 k B
0 t 0 . 5 d B m
(0.77sv)
5
REV
Recording
Level
Scotch #211 Tape
1 , 0 0 0 H z 0 d B m
Recording
REV.REC
V R I
l 0 k B
0 1 0 . 5 d B m
(0.71sv)
6
FWD Frequency
Response
(3-3la ips)
Scotch #211 Tape
1 . S k H z , 1 5 k H z
-2OdBm Recording
FWD-REC
TC2
1 . 5 k H z ,
l 5 k H z
flat
Tape Speed 3-3l4 ips.
Recheck Recording
Level.
1
REV Frequency
Response
(3-3la ip9
Scotch #211 Tape
I . 5 k H z , l 5 k H z
-20dBm Recording
REV.REC
TC1
1 . 5 k H z ,
l 5 k H z
flat
Tape Speed 3-3l4 ips.
Recheck Recording
Level.
8
Frequency
Response
(7-112 ips)
Scotch #2ll Tape
1 . 5 k H z , l 5 k H z
-20dBm Recording
FWD-REC
VR7
30 kB
1 . 5 k H z ,
l 5 k H z
flat
Tape Speed 7 -112 ips.
Recheck Recording
Level.
9
FWD Distortion
Confirmation
Scotch #211 Tape
1,000H2 0 dBm
Recording
FWD-REC
Less than
0 5 %
See NOTE 4
1 0
REV Distortion
Confirmation
Scotch #211 Tape
1,000 Hz, 0 dBm
Recording
REV-REC
Less than
0 . s %
See NOTE 4
1 l
Bias Filter
REC
L3
Less than
-30 dB
Mic, Line Volume at
M a x . S e e N O T E 5 .
Chart-5
NOTES: 1.
2 .
a
J .
A
ï .
5 .
Output Level Control should be at maximum.
Except for Steps 6 and 7, set Tape Speed to 7-l12 ips.
Set Tape Selector Switch to Low Noise position.
If it does not comply with the specifications, repeat Steps 6 and 7, and re-adjust.
Unless the core is moved intentionally this adjustment is not necessary.
3 1
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