Sony CAS-1 Service Manual page 84

CAS-1
2. DIAGRAMS
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.
• : 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.
• MAIN board is multi-layer printed board. However, the
patterns of intermediate layers have not been included in
diagrams.
• Indication of transistor.
C
Q
These are omitted.
B E
Note: When the complete MAIN board is replaced, refer to
"WRITING OPERATION OF SERIAL NUMBER AF-
TER REPLACING THE MAIN BOARD" on page 6
on original service manual.
4
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.
• B : B– Line.
• Voltages are dc with respect to ground under no-signal
conditions and state of connecting to two speakers (SS-
HW5).
no mark : POWER ON (Headphone is not connected)
( ) : POWER ON (Headphone is connected)
: Impossible to measure
*
• Voltages are taken with VOM (Input impedance 10 M).
Voltage variations may be noted due to normal production
tolerances.
• Signal path.
: AUDIO (ANALOG)
F
: AUDIO (DIGITAL)
J
: USB
E
: BLUETOOTH
d
Note: When the complete MAIN board is replaced, refer to
"WRITING OPERATION OF SERIAL NUMBER AF-
TER REPLACING THE MAIN BOARD" on page 6
on original service manual.