Io Board (Smps) Schematic Diagram (1/4); Io Board (Micom/Tuner) - Sony RDR-GX257 Servise Manual

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4-3. IO BOARD (SMPS) SCHEMATIC DIAGRAM (1/4) • See page 5-1 for printed wiring board.
IO BOARD (1/4)
SMPS
T E
L 1 3 9 4 2 2 9 6 5 1 3
AC IN
NOTE :
1. Shaded ( ) parts are critical for safety. Replace only
withspecified part number.
2. Voltages are DC-measured with a digital voltmeter dur-
ing Play mode.
w w w
.
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x a o
y
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C D E F G
http://www.xiaoyu163.com
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IMPORTANT SAFETY
WHEN SERVICING THIS CHASSIS, UNDER NO CIR-
CUMSTANCES SHOULD THE ORIGINALDESIGN BE
MODIFIED OR ALTERED WITHOUT PERMISSION
FROM THE SONY. ALLCOMPONENTS SHOULD
BER E P L A CED O NLY W ITH T Y PES I D E N T I CAL TO
THOSE IN THE ORIGINALCIRCUIT. SPECIALCOMPO-
NENTS ARE SHADED ON THE SCHEMATIC FOR
u 1 6 3
.
H I J K
4-3
2 4
9 9 8
1 5 1 5 0 8 9 2 4
EASY IDENTIFICATION. THIS CIRCUIT DIAGRAM MAY
OCCASIONALLY DIFFER FROM THE ACTUALCIR-
CUITUSED. THIS WAY, IMPLEMENTATION OF THE
LATEST SAFETY AND PERFORMANCE IMPROVE-
m MENT CHANGES INTO THE SETIS NOT DELAYED
UNTIL THE NEW SERVICE LITERATURE IS PRINTED.
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L M N O
RDR-GX257/GX380
2
9 9
9 8 2 9 9
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