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1-16 (No.MB248)
SECTION 4
ADJUSTMENT
4.1
Arrangement of adjusting positions
4.2
Tape recorder section
4.3
Tuner section
Cassette deck mechanism
(Front side)
REC/PB Head
(Deck-B)
Head azimuth screw
(Reverse side)
Head azimuth screw
(Forward side)
Items
Measurement
conditions
Measurement method
Standard
values
Adjusting
positions
1.Playback the test tape VT703 (10KHz) or
equivalent.
2.Adjust the head azimuth screw to obtain
maximum output and both output of L/R
is in 3dB.
3.Put on the screw lock paint after alignments.
1.Insert the recording tape in deck-B.
2.Starting the recording.
3.Adjust the oscillation frequency to
82KHz+/-3KHz by core of Oscillation coil
of T201.
Test tape
: VT703 (10kHz)
Measurement
output terminal
: Left and Right
speaker output
(6-ohm loaded)
or
Headphone Output
(32-ohm loaded)
Test tape
: TYPE I AC-514
Measurement
output terminal
: Erase head
terminal
(CN202 2 th Pin)
Maximum
output
82kHz+/-3kHz
Adjust the
head azimuth
screw only
when the head
has been
changed.
Use the High-
Impedance
Probe or
Frequency
counter input.
Cassette Head
Azimuth
Alignments
Recording Bias
Frequency
Alignment
Items
Measurement
conditions
Measurement method
Standard
values
Adjusting
positions
1.Set the Signal Generator signal to 1629KHz
the feedto Loop Antenna.
2.Receiving the signal and the adjust the OSC
coil (404) obtain the. VT is 4.7V +/-0.05V.
3.Change the receiving frequency to 603KHz.
4.Adjust the Antenna coil ( L102 ) obtain
maximum sensitivity
(Adjust the SSG output to out of AGC range.)
1.Set the receiving frequency to 522KHz.
2.Feed the 450KHz signal to AM antenna input.
3.Adjust the IFT BlockT1 obtain to maximum
output.
(Adjust the SSG output to out of AGC range.)
Input signal
: 1629kHz
600kHz
Adjustment point
: Antenna coil (T2)
Input signal
: 522kHz
Adjustment point
: IFT (T101)
V.T
: 4.7V+/-0.05V
Maximum
sensitivity
Maximum
output
Adjust the OSC
coil only when
the AM coil block
has been
changed.
Adjust the IFT
only when the
IFT block has
been changed.
AM Tracking
Alignments
AM IFT
Alignments
Note: The adjustment of CD section is not required.
Содержание UX-H100
Страница 17: ... No MB248 1 17 SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING ...
Страница 28: ...2 5 Standard schematic diagrams A version Primary section ...
Страница 29: ...2 6 US UT UW UJ version Primary section ...
Страница 30: ...2 7 Main section ...
Страница 31: ...2 8 Front section ...
Страница 32: ...2 9 Tuner section ...
Страница 33: ...2 10 CD section ...
Страница 34: ...2 11 Printed circuit boards Main board forward side ...
Страница 35: ...2 12 Main board forward side ...
Страница 36: ...2 13 CD board forward side reverse side ...
Страница 42: ...3 5 CD mechanism assembly and parts list Block No M M M B 1 8 11 3 9 4 5 2 7 10 6 10 14 12 13 ...
Страница 46: ...3 9 MEMO ...