Sony ICF-7600DA - Page 32

CONTROL SECTION
51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34
LcD |
17_ 18 19 20 21 22 23 24 25 26 27 28 29 30 3! 32 33
15 16 17 18 19 20 21 22 23 24 25 26 27
a! 20mSEC
IL. 3.2V jee Msct. eae
——.6v
L6V
—ov —ov
Z R227
100 a 7...) |
|
5212-216
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kHz
->l0kHz
|
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—= HCO :
AP SWITCHING
$210 $214 cal a ; ga 4 sae
of? O) - 6
of on = v ty Ik
b 165 1.6
1.2 !
COVENAGE
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10k de |
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[ALARM BOARD]
| $220
20mSEC
RADIO po A b+}
BUZZER <-——©)
3.2VP-P
|
I
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AND LATER
CONTROL SECTION
28
CONTROL
29 30 31
Note:
e All capacitors are in wF unless otherwise noted. pF: uwuF
50 WV or less are not indicated except for electrolytics
and tantalums.
@ All resistors are in 2 and 1/,W or less unless otherwise
specified.
4 _: internal component.
© Switch
TONE
POWER ON/OFF ALARM OFF
SLEEP
KEY PROTECT
STANDBY OFF
mb select OFF
mb select > OFF
TIME SET CLOCK OFF
TIME SET ALARM OFF
sw
OFF
MW/LW
OFF
FM OFF
PRESET 1 OFF
PRESET 2 OFF
PRESET 3 OFF
PRESET 4 OFF
PRESET 5 OFF
ENTER OFF
MW CH STEP
MAIN POWER
ALARM
ame © B+ bus.
Power voltage is 6 V and fed with regulated DC power
supply.
Voltages are dc with respect to ground in detuned mode
with VOM (DC 50k 2/V). Voltage variations may be
noted due tolnormal production tolerances.
no mark: FM mode
( ) : MW/LW mode
(( ° )) : SW mode
Waveforms are taken to ground in no signal mode by
using oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.