Sony Glasstron PLM-S700E, Service Manual

Page: 33 / 94

4-13 4-14
•
Circuit Boards Location
LC-61 board
JK-136 board
SW-306 board
DD-107 board
YC-148 board
MA-324 board
4-6. NOTES FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM
(In addition to this, the necessary note is printed ineach block.)
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.
•
¢
: internal component.
•
C
: panel designation.
Note on Printed Wiring Board:
• X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
®
: Through hole.
• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•
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 M
Ω
).
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
Note: The components identified by mark ! or dotted line
with mark ! are critical for safety.
Replace only with part number specified.
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, YC-148, MA-324, LC-61, SW-306, and DD-107
boards are multi-layer printed board.
However, the patterns of intermediate-layer have not been
included in the diagram.
• Indication of transistor
C
B
These are omitted.
E
Q