As for adjusting method refer to the relevant explanation
in Service Manual “ADJUSTMENT PROCEDURES OF AU-
DIO PRODUCTS”.
Low-range frequency
High range frequency
. FM IF/RF
. Driving Force check
Torque Meter
Play: TW-2412
Reverse
TW-2422
Specified value
Over 50
Over 50
. Torque Check
Torque Meter
Play: TW-2111
Specified value
26 to 45
Reverse play: TW-2121
Fast forward: TW-2231
Head Azimuth
Test Tape
MTT-114
26 to 45
Over 60
Instrument Connection
Headphones socket
. Tape Speed
Test Tape
Adjusting
Specified
instrument
Point
value
Connection
MTT-111
3,000 90 Hz
Headphones
socket
Test Stage
IF
Detection
Frequency
cover
Tracking
Specified value/
Adjusting Point
T l
8 7 . 1 M H z
8 7 . 3 M H z
108.8 MHz
TC2
108.3 MHz
TC2
88.0 MHz: Ll
108.0 MHz:
Instrument
Connection
Input: TP3
Output: TP4
Input:
Output: Headphones
Socket (load
32 ohms)
. VCO Frequency
Frequency Dial
setting
88 MHz at
88 MHz
60
Adjusting
Point
I n s t r u m e n t
Connection
TP6
50 Hz
. AM IF/RF
Test Stage
IF
Frequency
cover
Tracking
Specified value/
Adjusting Point
4 6 0
TC4
6 0 0
1,400
TC3
Instrument
Connection
Input: Antenna
Output: TP5
Input: Antenna
Output: Headphones
socket
tance: 32 ohms)
M A I N
Figure 6 ADJUSTMENT POINTS
. Resistor:
T
O
differentiate the units of resistors, such symbol as
is
used: the symbol means 1000 ohm and the resistor
out any symbol is ohm-type resistor.
. Capacitor:
To indicate the unit of capacitor, a symbol is used: this
symbol means micro-micro-farad and the unit of the
pacitor without such a symbol is microfarad. As to
c a p a c i t o r , t h e e x p r e s s i o n “c a p a c i t a n c e / w i t h s t a n d
voltage” is used.
Temperature compensation
(ML): Mylar type
.
The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the
sis with no signal given.
1. Tuner
FM mode
Marking except for
AM mode
.
Schematic diagram and Wiring Side of
for this
model are subject to change for improvement without prior
notice.
Polypropylene type
