Note For Printed Wiring Boards And Schematic Diagrams - Sony LDI-D100BE Service Manual

• Circuit Boards Location
LC-61 (F) board
YC-148 (F) board
JK-136 (F) board
SW-306 (F) board
DD-107 (F) board
MA-324 (F) board
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4-6.

NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

(In addition to this, the necessary note is printed ineach block)
X
Y
b
Note on Printed Wiring Board:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• b : 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 from
(Side B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.
• JK-136 (F), YC-148 (F), MA-324 (F), LC-61 (F), SW-306
(F), and DD-107 (F) boards are multi-layer printed board.
However, the patterns of intermediate-layer have not been
included in the diagram.
• Indication of transistor
C
Q These are omitted.
B E
µ
f
C
0 0
U
a
F
L
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 / W or less unless otherwise
4
specified.
• : internal component.
f
• C : panel designation.
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• U : B+ Line.
• Power voltage is dc 8.4 V and fed with regulated dc power
supply from external power voltage jack.
• Voltages and waveforms are dc with respect to ground in
color-bar signal input.
no mark : VIDEO MODE
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: AUDIO
L : VIDEO
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