Rc-Bm5 - JVC RC-BM5 Service Manual

RC-BM5

Item Measuring condition
AM tracking Signal input:
adjustment AM ANT. COIL
antenna
Signal output:
IC101 pin14 or
IC101 pin15
FM tracking Signal input:
adjustment FM antenna
Signal output:
IC101 pin14 or
IC101 pin15
FM stereo Signal input:
separation FM antenna
adjustment Signal output:
IC101 pin14 or
IC101 pin15
Location of adjusting parts
Cassette mechanism section
(Caution) For adjusting any head, be sure to use a screw driver degaussed.
max
Fig.1 Head output signal
Cassette board
T605
Fig.3
1-18
Check and adjustment procedure
1. Set the AM signal generator at 600kHz and the unit
receiving 600kHz, adjust L105(AM ANT. COIL) for
maximum output.
2. Set the AM signal generator at 1400kHz and the unit
receiving 1400kHz, adjust TC101 for maximum output.
1. Set the FM signal generator at 90MHz and the unit
receiving 90MHz, adjust L101 for maximum output.
2. Set the FM signal generator at 106MHz and the unit
receiving 106MHz, adjust TC102 for maximum output.
1. Set the AM signal generator at 98MHz with stereo
deviation and the unit receiving 98kHz.
2. Adjust VR101, so that the separation between the R
and L channels for maximum.
Adjustment
Head
Azimuth adjustment screw
Tuner board
T105
T106
CASSETTE MOTOR
Tape Speed Adj.
T102
L101
T104
TC101
TC1
1pin
TC102
VR101
IC101
14pin L102
15pin
T103
Fig.4
Standard value Adjusting part
L105
TC101
See Fig.4 on
page 1-18.
L101
TC102
See Fig.4 on
page 1-18.
VR101
See Fig.4 on
page 1-18.
Fig.2
TC10
L105
(AM ANT. COIL)