Sony ICF-860L - Section 3-2 Schematic Diagram; Main Board Schematic; Power Board Schematic

3-2. SCHEMATIC DIAGRAM
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eeu (MAIN BOARD]
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AM FM REG OUT
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RF
IN
IRF
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OSC
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FRONTEND,
IF AMP, DET,
POWER AMP
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SWITCHING
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(1.15)
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Note for Schematic Diagram
@ All capacitors are in uF unless otherwise noted. @® Voltages are dc with respect to ground unless otherwise
H pF: uuF SOWV or less are not indicated except for elect- noted. :
rolytics and tantalums. ® Readings are taken under no-signal (detuned) conditions
@ All resistors are in 2 and %W or less unless otherwise with a VOM (50k2/V).
specified. @ Voltage variations may be noted due to normal produc-
e : signal path. tion tolerances.
© fA _: internal component. no-mark: EM
e Switch
( ):MW,LW,SW
ON
FM
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$101
Note: The components identified by shading and mark
are critical for sefety. Replace only with
BAND
SELECT
part
number
specified.
ICF-850L ICF-850L
ies
MW LW 500 cT2
10 11 12 13 14
CT8
S!-7
VVVYV
|
C32
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[POWER BOARD]
|
OUT}
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(EARPHONE)
I (SPEAKER)
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TOTAL CURRENT AS
FM: 7mA
MW : 4mA \
LW: 4mA C)
SW: 4mA
DRY BATTERY
SIZE “AA'
4PCS 6V
| 7 : IN400I
RECT
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(EC DESIGNATION R6) Fo |
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|
POWER TRANSFORMER