JVC RC-BX33SL Service Manual page 9

Tape recorder section
Items
Measurement
conditions
Confirmation Test tape
of head angle :TCC-182A(8KHz)
Measurement output
terminal
:Speaker terminal
Sparker R
(Load resistance:8 )
:Headphone terminal
Confirmation Test tape
of tape speed :TCC-112(3KHz)
Measurement output
terminal
:Headphone terminal
Reference Values for Confirmation Items
ITEMS
Measurement
conditions
Wow & flutter Test tape
:TCC-112(3KHz)
Measurement output
terminal
:Headphone terminal
Measurement method
1 Playback the test tape TCC-182A (8KHz)
2 With the recording & playback mechanism, output
adjust the head azimuth screw so that the
left and right output levers become
maximum, After adjustment, lock the
head azimuth at least by half turn.
Adjust VR401 so that the frequency counter
reading becomes 3,010Hz +/-15Hz when
playing back the test tape TCC-112 (3KHz)
with playback and recording mechanism
after ending forward winding of the tape.
Measurement method
When the test tape TCC-112 (3KHz) has been 0.25% or
played back with the recording and playback
mechanism at the beginning of forward
winding, the frequency counter reading of
wow & flutter should be 0.25% or less
(WRMS).
RC-BX33SL
Standard Adjusting
Values positions
Maximum Adjust the head
azimuth screw
only
Tape speed MOTOR VR
of deck
:3,010Hz
+/-15Hz
Standard Adjusting]
Values positions
less
(WRMS)
1-9