LED BOARD
TUNER BOARD
GE SW BOARD
VOL BOARD
MEGA BASS SW BOARD
MIC BOARD
MAIN BOARD
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1
/
4
W or less unless otherwise
specified.
Note:
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.
• A : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 9V and fed with regulated dc power
supply frombattery terminal .
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM (RADIO SECTION), PLAY (TAPE SEC-
TION)
( ) : MW (RADIO SECTION), REC (TAPE SEC-
TION)
< > : SW1,2
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
WAVEFORMS
1
2
T301
Q301 B
250Vp-p
18.3
µ
sec
5.5Vp-p
18.3
µ
sec
VOLT/DIV : 50V AC
TIME/DSIV : 5µsec
VOLT/DIV : 2V AC
TIME/DSIV : 5µsec
• Signal path.
F : FM
f : AM
E : PB
a : REC
J : CD/TV LINE IN
• Abbreviation
EA:Saudi Arabia
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