Sony SRS-GD50iP Service Manual page 9

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.
• f : Internal component.
• : 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
SRS-GD50iP
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 Ω and 1/4 W or less unless otherwise
specifi ed.
• C : Panel designation.
• A : B+ Line.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : iPod
• Voltages are taken with VOM (Input impedance 10 MΩ).
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.
F : AUDIO
E
: USB
L : LINE IN
• Waveforms
– MAIN Board –
IC111 2 (IN)
1
2.5 Vp-p
81 ns
1 V/DIV, 50 ns/DIV
IC113 7 (LRCK)
2
4 Vp-p
20.8 s
1 V/DIV, 10 s/DIV
IC113 8 (BCK)
3
4.2 Vp-p
328 ns
1 V/DIV, 200 ns/DIV
IC501 qd (Xout)
4
3.4 Vp-p
200 ns
1 V/D, 100 ns/DIV
9 9
SRS-GD50iP