Sharp RG-375H Serviceanleitung Seite 8
RG-å75X
SOCKET
SOI
riot
FM
IF
TUNER
UNIT
1st AMP
c"02
2nd
Coc
OSC COIL
L 201
ANT.
TLI
OSC
IC201
OSC
L zoz
SW IOS—A
S*SOS
IC'02
APSS
0601--0603
SWI TCHING
MOTOR
TAPE
SELECTM
SWITCHNG
APEIRA
TRAVEL
INDICATOR
TAPE.'RAOIO
S WITCHING
SWITCHM
301
Figure 7 BLOCK
RG-375H(B
vc.o
ADJUST
L.P.F
IC102
AN'S
SEPM
AOWS
r
KPF
Auro
•ÖSE
Cur
STERE
SWITCH'tE
SWITCHING
SW505
TAG
OR
GRAm41C
EWA-IZER
MUTING
DIAGRAM
RG-375H(BK)
ADJUSTMENT
ITEM
JIG
POINTS
Pinch
roller
Tension gauge
Pinch
(500 g)
pressure
pressure spring
Torque
Torque
meter
Play, Forward
TW-2111
Play, Reverse
TW-2121
Fast-forward
TW-2231
Rewind
TW-2231
0/
Azimuth
Test tape
Azimuth
MTT-114
adjusting
screw
Tape speed
Test tape
Variable
MIT-111
on
COMPACT
CASSETTE
TYPE
TITLE
MODEL
FLUTTER
MT T.1
11
AZIMUTH
MTT.113
MT T.113C
MTT-114
DISTORTION
MTT.118
DOLBY
LEVEL
MTT-150
CALIBRATION
BLANK
MTT.502
MECHANICAL
ADJUSTMENT
Reverse
Pinch
REMARK
(CHECK)
roller
300—420 g
• If the reading is
outside the range,
replace
the
pressure
spring of
the pinch
roller.
Figure 8
(Play, Forward:
30 — 60 g-cm)
(Play, Reverse:
30 — 60 g-cm)
(F ast-forward:
Test Tape
80 — 130 g-crn)
(Rewind:
MTT-114
80 — 130 g-crn)
Sine
waveform
Playback Head
attains
the
maximum.
resistor
3,000 ± 81 Hz
motor
Test Tape
MT T-1 11
Playback
Head
TEST
TAPES
FOR
MEASUREMENT
TORQUE
METER
MODEL
MEASUREMENT
FREQUENCY/
APPLICATION
RANGE
LEVEL
3 kHz.
—10 dB
Tape speed.
10
— 100 g•cm
Wow
and
flutter
check
1.5— 10 g.crn
TW-2121
6.3 kHz,
—10 dB
10 — 100 g•cm
Head
azimuth
8 kHz.
—10 dB
adjustment
1.5 — 10 g•cm
10 kHz.
—10 dB
TW.2231
30
— 200 g•cm
1 kHz.
—IOdB
Distortion
check
level adjustment
TW-2412
O — 300 g
Dolby
B.Type
Dolby NR
TW-2422
O —300 g
Tone
200 nwb/m
B-tym
level
adjustrnent
Record
fre-
quency
check
Roller
Capstan
Forward
Pinch
Roller
Pinch Roller Spring
-1
PINCH
ROLLER
PRESSURE
Oscilloscope
Speaker
Playback
Terminal
mode
4 ohm
Unit
Electronic
4 Ohms
Voltmeter
Speaker
Terminal
Figure 8—
2 AZIMUTH
F requency
Speaker
Terminal
Playback
Counter
mode
Unit
Figure 8
—3 TAPE
SPEED
FOR COMPACT
CASSETTE
APPLICA"ON
Normal
:
Playback torque
Normal
Back-tension
Reverse
Playback 'o rque
Reverse
Back-tenson
Fast-forward,
Rewild
torque
Normal
.
Driving PQMr
Reverse
Driving poæer
