Diagrams; Note For Printed Wiring Boards And Schematic Diagrams - Sony TA-FE370 Service Manual

4-1.

NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

Note on Printed Wiring Board:
• X : parts extracted from the component side.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor
Q
B C E
These are omitted.
Q
B C E
These are omitted.
• Waveform
– CONTROL Board –
1 IC801 1 (XOUT)
3 Vp-p
250 ns
SECTION 4

DIAGRAMS

Note on Schematic Diagram:
• 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 / W or less unless otherwise
4
specified.
• f : internal component.
• 2 : nonflammable resistor.
• C : panel designation.
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : TUNER
• 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.
• Signal path.
F
: TUNER
E : TAPE1/DAT IN
a : RECOUT
d : TAPE2/MD IN
J : CD
I : PHONO
• Circuit Boards Location
POWER SW board
HEADPHONE board
SPEAKER SW board
7 7
TA-FE370/FE570
STANDBY board
AC OUTLET board
MAIN board
VOLUME board
CONTROL board
LOUDNESS board