Adjustment - Sharp JC-S58H Service Manual Digest

As for adjusting method refer to the relevant explanation
in Service Manual " ADJUSTMENT PROCEDURES OF AU-
DIO PRODUCTS" .
. Driving Force check
Torque Meter
Play: TW-2412
Reverse olav: TW-2422
. Torque Check
Torque Meter
Play: TW-2111
Reverse play: TW-2121
Fast forward: TW-2231
Test Tape
MTT-114
. Tape Speed
Test Tape Adjusting Specified
Point value
MTT-111 3,000 + 90 Hz
. Resistor:
T differentiate the units of resistors, such symbol as K is
O
used: the symbol K means 1000 ohm and the resistor with-
out any symbol is ohm-type resistor.
. Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-farad and the unit of the ca-
pacitor without such a symbol is microfarad. As to electro-
voltage" is used.
Temperature compensation
(ML): Mylar type
Specified value
Over 50 g
Over 50 q
Specified value
26 to 45 g.cm
Over 60 g.cm
Instrument Connection
Headphones socket
instrument
Connection
Headphones
socket
Figure 6 ADJUSTMENT POINTS
High range frequency
. FM IF/RF
Test Stage
Specified value/
Adjusting Point
IF T l
Detection
Frequency 8 7 . 1 M H z fL: L2
cover
8 7 . 3 M H z fL: L2
108.8 MHz fH: TC2
108.3 MHz fH: TC2
Tracking 88.0 MHz: Ll
108.0 MHz: TCl
. VCO Frequency
Frequency 1 Dial
Adjusting
setting Point
88 MHz
88 MHz at
60 dB
. AM IF/RF
Test Stage
Specified value/
Adjusting Point
IF
460 kHz: T2
Frequency
cover
Tracking 600 kHz: L3
1,400 kHz: TC3
M A I N PWB-AI
. The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas-
sis with no signal given.
1. Tuner
Marking except for (
. Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.
Instrument
Connection
Input: TP3
Output: TP4
Input: TPl
Output: Headphones
Socket (load resis-
Connection
TP6
Instrument
Connection
Input: Antenna
Output: TP5
Input: Antenna
Output: Headphones
socket (load resis-
tance: 32 ohms)