Diagrams - Sony AVD-K150B Service Manual

• Circuit Boards Location
KEY board
DISPLAY board
AVD-K150B/K150E/K150G/K150N/K150R
SECTION 5

DIAGRAMS

DVD & AMP board
SMPS board
VCR board
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For schematic diagrams.
Note:
• All capacitors are in F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in and 1 / W or less unless otherwise
4
specified.
• f : internal component.
• 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.
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages and waveforms are dc with respect to ground in
service mode.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
no mark : STOP
• Circled numbers refer to waveforms.
• Signal path.
F : AUDIO
J
: CD
c
: DVD
d
: TUNER
L : VIDEO
E : Y
a
: CHROMA
q
: R, G, B
51 51
AVD-K150B/K150E/K150G/K150N/K150R
For printed wiring boards.
Note:
• X : parts extracted from the component side.
• : Through hole.
a
• 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
(Conductor Side) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.
• Indication of transistor.
C
Q
These are omitted
B C E
B E
These are omitted
• Abbreviation
AED : North European model
RU : Russian model