Mechanism Section; Tape Section - Sharp GX-68Z Service Manual

. Driving Force check
Play: TW-2412
Reverse play: TW-2422
. Torque Check
Torque Meter
Play: TW-2111
Reverse play: TW-2121
Fast forward: TW-2231
Rewind: TW-2231
Test Tape
MTT-114
. Tape Speed
Test Tape Adjusting Point Specified value
Normal
MTT-111 Tape 2: VR502 3,000 f 60 Hz (Ext. SP)
speed
,
MTT-111 Tape 2: VR501 6,000 f 700 Hz
To
set normal speed, short-circuit collector and emitter of Cl51 4.
Figure 9 AZIMUTH POINTS
I
Over 50 g
Over 60 g
Specified value
Taoe 1
35 to 60 g.cm 30 to 60 g.cm
35 to 60 g.cm 30 to 60 g.cm
55 to 120 g.cm 55 to 120 q.cm
55 to 120 g.cm
Instrument Connection
(Load resistance: 4 ohms)
Instrument
CASSETTE HOLDER COVER
HEAD
Position of each switch or control
Volume
Beat cancel switch
Graphic equalizer
Tape selector switch
Function
Dolby NR Swrtch
Oscillation Frequency check
Beat cancel
Adjustment
L : VRlOl
Resistor for
measurement: 10 ohm
Resistor for
measurement: 1 ohm
Specified value
Test Tape
Adjusting
Test Tape
Point
L: VR201
MTT- 150
Adjusting
Test Tape
Point
L: VR203
MTT- 150
. Record/Playback Sensitivity
Adjusting
Test Tape
Point
Max
A
Center
Normal
Tape
Off
Adjustment
Specified value
ooint
L341
A: - 2 + 4 kHzforB
c : - 8 & 2 kHzfor B
Specified value
Normal
S p e c i f i e d v a l u e 1
Normal
Instrument
Specified value
Connection
L: TP201 @
Normal: 580 mV
Instrument
Specified value
Connection
L: TP201 @
Normal: 580 mV
Instrument
Specified value
Connection