Service manual
CD-C471
W
ADJUSTMENT
MECHANISM SECTION
l
Driving Force Check
Torque Meter
Play: TW-2412
Specified Value
Tape 1: Over 80
g
Tape 2: Over 80
g
l
Torque Check
Torque Meter Specified Value
Tape 1
Tape 2
Play: TW-2111
30 to 60
g.
cm
30 to 100
g.cm
Fast forward: TW-2231
-
50 to 100
g.cm
Rewind: TW-2231
-
50 to 100
g.cm
l
Tape Speed
Test Tape
Adjusting
Specified Instrument
Point
Value
Connection
Normal
Ml-T-1
11
VRMl
3,000
f
Speaker
speed
30
Hz
terminal
\
TAPE MECHANISM PWB
i
TUNER SECTION
fL:
Low-range frequency
fH:
High-renge frequency
l
AM IF/RF
Signal generator: 400 Hz,
30%,
AM modulated
Test Stage Frequency Frequency
Setting/ Instrument
Display
Adjusting Connection
Parts
IF
450
kHz
1,602
kHz T351
*1
AM Band
-
531
kHz (fL):
T306
“2
Coverage
1.1
*
0.1
v
AM
990
kHz
990kHz
(fL):
T302
*1
Tracking
*l.
Input: Antenna, Output: TP302
*2.
Input: Antenna, Output:
TP301
Notes:
1: Description of the “FM IF Adjustment” is not carried on this
Manual. It is because the IF coil in the FM front end section
has been best adjusted in the factory so that its further
adjustment is not needed at the field. When replacing the
FM front end assembly, no adjustment is needed either.
2: The parts in the FM front end section are prepared in a
complete unit, so you can’t obtain each part individually
*
FM Mute Level
Signal generator: 1
kHz,
40
kHz
dev., FM modulated
/
TUNER PWB
/
I
T351
T306
I
AM BAND
AM
COVERAGE
TRACKING
l-----D
50301
ANTENNA
TERMINAL
Figure 11 ADJUSTMENT POINTS
-ll-