Diagrams - Sony ICF-M1000 Service Manual

• Note for Printed Wiring Boards and Schematic Diagrams
Note on Printed Wiring Board:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
W : indicates side identified with part number.
•
: internal component.
f
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Waveform
– MAIN Board –
IC401 wf (XOUT)
1
1.6 Vp-p
13.3 µ s
500 mV/DIV, 5 µ s/DIV
ICF-M1000
SECTION 5

DIAGRAMS

Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1 / W or less unless otherwise
4
specified.
•
: internal component.
f
• 2 : nonflammable resistor.
• C : panel designation.
Note: Note:
The components identi- Les composants identifiés par
fied by mark 0 or dotted
une marque 0 sont critiques
line with mark 0 are criti- pour la sécurité.
cal for safety. Ne les remplacer que par une
Replace only with part pièce por tant le numéro
number specified. spécifié.
• A : B+ Line.
• H : adjustment for repair.
• Voltages and waveform are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
( ) : AM
[ ] : LINE
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveform are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveform.
• Signal path.
F
: FM (INTERNAL ANTENNA)
L : FM (EXTERNAL ANTENNA)
f : AM
E : LINE IN
j : LINE OUT
• Abbreviation
CND : Canadian model
• Circuit Boards Location
KEY board
9 9
ICF-M1000
POWER board
LCD board
MAIN board
AMPLIFIER board
VOL board
Ver. 1.1