Sony SA-WMS215 - Diagrams; Notes for Printed Wiring Boards and Schematic Diagrams; IC Block Diagram; Circuit Boards Location

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SECTION 1
DIAGRAMS
1-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
• X : parts extracted from the component side.
• b : Pattern from the side which enables seeing.
• Indication of transistor.
B
These are omitted.
CE
Q
Note on Schematic Diagram:
• 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
/
4
W or less unless otherwise
specified.
• 2 : nonflammable resistor.
• C : panel designation.
• U : B+ Line.
• V : B– Line.
• Voltages are dc with respect to ground under no-signal
conditions.
• Voltages are taken with a VOM (input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F : AUDIO
• Circuit Boards Location
SA-WMS215
• IC Block Diagram
IC302 uPC1237HA
1 2 3 4 5 6 7 8
OVER LOAD DET
F/F
OFFSET DET
LATCH/
AUTORESET
V
CC ON
MUTE
AC OFF
DET
V
CC
CONTROL board
LED board
POWER SWITCH board
POWER IC board
MAIN boar
d
POWER SUPPLY board
Note :
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.