9
WM-GX221
[AM]
BAND : AM
[FM]
BAND : FM
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
505 kHz (516.5 kHz)
CT1-4
1,760 kHz [1,690 kHz] (1,631.5 kHz)
[ ] : E, 9E, CH, TW MODEL ( ) : EA MODEL
no mark : OTHER MODELS
TUNER SECTION
0.01
µ
F
FM RF signal
generator
to ANT (FM IN)
75kHz frequency deviation by 1kHz signal.
Output level : as low as possible
Put the lead-wire
antenna close to
the set.
30% amplitude modulation by 400 Hz
signal.
Output level : as low as possible
AM RF signal
generator
set
+
–
level meter
2
jack (J301)
16
Ω
(EXCEPT US MODEL)
32
Ω
(US MODEL)
0dB=1
µ
V
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
455 kHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
86.0 MHz (87.35 MHz)
CT1-3
109.5 MHz (108.25 MHz)
( ) : EA MODEL
no mark : OTHER MODELS
• Repeat the procedures in each adjustment several times.
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
620 kHz
CT1-1
1,400 kHz
[MAIN BOARD] — SIDE B —
Adjustment Parts Location :
[MAIN BOARD] — SIDE A —
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L2
86.0 MHz (87.35 MHz)
CT1-2
109.5 MHz (108.25 MHz)
( ) : EA MODEL
no mark : OTHER MODELS
•
Abbreviation
9E : E model without the indication of the country of origin.
CH : Chinese model
EA : Saudi Arabia model
TW: Taiwan model
CT1-3
CT1-4
CT1-2
CT1-1
RV602
RV601
L4
L3
L2
T1
L1
CT1-3 : FM frequency
coverage adjustment
CT1-4 : AM frequency
coverage adjustment
CT1-2 : FM tracking
adjustment
CT1-1 : AM tracking
adjustment
RV601 : Tape speed adjustment
(NORM)
RV602 : Tape speed adjustment
(DOUBLE)
L4 : AM frequency
coverage adjustment
L3 : FM frequency
coverage adjustment
L1 : AM tracking
adjustment
L2 : FM tracking
adjustment
T1 : AM IF
adjustment
Ver 1.1 2002.06