24
8.1 TAPE SPEED ADJUSTMENT
1) Playback the middle of the Wow and Flutter test tape.
(TCC-112 or MTT-111)
2) Adjust the following semi-fixed resistor each direction.
Normal speed for 3000Hz(2990Hz - 3010Hz).
High speed for 6000Hz(5980 - 6020Hz)
8.2 HEAD AZIMUTH ADJUSTMENT and
FREQUENCY RESPONSE CHECK
1) Playback the 12.5 kHz part of the Azimuth test tape.
2) Adjust the proper azimuth screw in both directions for
maximum output at the LINE OUTPUT jacks.
3) In case the L/R peak points are different, adjust the
lower channel for maximum.
4) Lock the azimuth screws with glue or bondlock.
5) Playback the 315 Hz part of the test tape and set a 0
dB ref., then playback the 12.5 kHz part of he test tape
and confirm that the output is 0 dB,
3 dB.
8.3 PLAY-BACK LEVEL ADJUSTMENT
1) Playback the DOLBY test tape, adjust the following
semi-fixed resistors for 388 mV at the test points;
2) After adjustment, replay and check it again.
Remarks:
In case of drifting output during replay, check that the tape
running and the test tape, because they may be defec-
tive.
FWD RM10
RM13
RM60 RM63
REV
RM09
RM12
RM59 RM62
A
A
B
B
normal high
normal high
CH. TEST POINT
SEMI-FIXED RES. MECHA.
L
CK01
RJ19
A
R
CK02
RJ20
A
L
CK51
RJ69
B
R
CK52
RJ70
B
CH. TEST POINT
SEMI-FIXED RES. MECHA.
L
CK01
RJ19
A
R
CK02
RJ20
A
L
CK51
RJ69
B
R
CK52
RJ70
B
FWD RM10
RM13
RM60 RM63
REV
RM09
RM12
RM59 RM62
A
A
B
B
normal high
normal high
All manuals and user guides at all-guides.com
