Diagrams; Circuit Boads Location - Sony TA-AV581 Service Manual

3-1. CIRCUIT BOARDS LOCATION
SW board
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this necessary note is printed in each
block.)
For Schematic Diagrams.
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 / W or less unless otherwise
4
specified.
• % : indicates tolerance.
• : internal component.
¢
• 2 : nonflammable resistor.
• 1 : fusible resistor.
• C : panel designation.
Note : The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.
• U : B+ Line.
• V : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
No mark : FM
• Voltages are taken with a VOM (Input impedance
10MΩ).
Voltage variations may be noted due to normal
production tolerances.
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
• Abbreviation
AUS : Australian model.
SP : Singapore model.
SECTION 3

DIAGRAMS

TRANS 1 board
TRANS 2 board
HP board
DISPLAY board
OUTLET board (AEP, SP, AUS Model)
POWER board
REAR SP board
MAIN board
VOL board
For Printed Wiring Boards.
Note:
• X : parts extracted from the component side.
• : Through hole.
®
• : internal component.
¢
• b : Pattern from the side which enables seeing.
• Waveform
• DISPLAY SECTION
1
IC401 #∞ (X2)
5.8Vp-p
5MHz
• MAIN SECTION
2
IC300 $§ (OSC)
8.0MHz 4.0Vp-p