Sony DSX-A40UE Service Manual page 13

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• : Internal component.
f
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen
(Conductor Side) from the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.
• Indication of transistor.
C
Q These are omitted.
B E
Note: When the complete MAIN board is replaced, the
destination setting is necessary. Refer to "NOTE OF
REPLACING THE COMPLETE MAIN BOARD OR
SYSTEM CONTROLLER (IC101)" on page 4.
DSX-A40UE/A40UI/A42UI
For Schematic Diagrams.
Note:
• 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  and
1 / W or less unless otherwise
4
specifi ed.
• : internal component.
f
• C : panel designation.
• A : B+ Line.
• Power voltages is dc 14.4V and fed with regulated dc
power supply from ACC and BATT cords.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM)
• Voltages are taken with a VOM (Input impedance 10 M).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
: AUDIO
F
f : TUNER
: USB
d
: AUX
E
Note: When the complete MAIN board is replaced, the
destination setting is necessary. Refer to "NOTE OF
REPLACING THE COMPLETE MAIN BOARD OR
SYSTEM CONTROLLER (IC101)" on page 4.
• Waveforms
– MAIN Board –
IC201 ug (X12OUT)
1
2.7 Vp-p
83 ns
2 V/DIV, 50 ns/DIV
IC101 9 (XOUT)
2
2.7 Vp-p
30.4 s
2 V/DIV, 20 s/DIV
3 IC101 qa (OSCOUT)
3.5 Vp-p
126 ns
2 V/DIV, 50 ns/DIV
IC501 1 (BST)
4
16.4 Vp-p
2.4 s
10 V/DIV, 2 s/DIV
13 13
DSX-A40UE/A40UI/A42UI