Read Sony SRS-BTV25 Service Manual online
SRS-BTV25
SRS-BTV25
19
19
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specifi ed.
• f : Internal component.
• C : Panel designation.
• C : Panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• Voltages and waveforms are dc with respect to ground
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : AUDIO IN
• Voltages are taken with VOM (Input impedance 10 M
• Voltages are taken with 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
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F :
F :
AUDIO
f :
AUDIO
IN
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• f : Internal component.
•
• 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:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Circuit Boards Location
• Indication of transistor.
C
B
These are omitted.
E
Q
• Waveforms
– MAIN Board –
1
IC101
qa (XO)
1 V/DIV, 50 ns/DIV
126 ns
2.8 Vp-p
2
IC401
3
500 mV/DIV, 50 ns/DIV
82 ns
1.1 Vp-p
4
IC406
wa (SCLK)
1 V/DIV, 100 ns/DIV
324 ns
4.1 Vp-p
20.8
Ps
4.2 Vp-p
3
IC406
w; (LRCK)
1 V/DIV, 10
Ps/DIV
JACK board
USB board
BT board
MAIN board
KEYF board
KEYR board
Click on the first or last page to see other SRS-BTV25 service manuals if exist.