Note For Printed Wiring Boards And Schematic Diagrams - Sony HCD-FL7D Service Manual

8-8.

NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• : internal component.
f
• : 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 E
Q
B C E
These are omitted.
Q
B C E
These are omitted.
D
Q
These are omitted.
G S
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
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
Note: Note:
The components identi- Les composants identifiés par
une marque 0 sont critiques
fied by mark 0 or dotted
line with mark 0 are criti- pour la sécurité.
cal for safety. Ne les remplacer que par une
pièce por tant le numéro
Replace only with part
spécifié.
number specified.
• A : B+ Line.
• B : B– Line.
• H : adjustment for repair.
• 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
E : Y
a : CHROMA
r : COMPONENT VIDEO
f : TUNER
E : TAPE PLAY (DECK A)
d : TAPE PLAY (DECK B)
G : REC (DECK B)
J
: CD PLAY
c : DVD PLAY
I : SACD PLAY
N
: MIC
j
: MD (VIDEO)
i : OPTICAL DIGITAL IN
• Abbreviation
CND : Canadian model
EA : Saudi Arabia model
KR : Korean model
MX : Mexican model
SP : Singapore model
• Circuit Boards Location
blue LED board
panel (L) board
CD motor board
MIC board
(Saudi Arabia, Korean,
Mexican, Singapore)
CD door SW 1 board
CD door SW 2 board
TC SW (A) board
TC door SW board
GC board
sensor 2 board
sensor board
OUT/MIDOUT SW board
CD door board
SW board
head (A) board
45 45
SP relay board
front rear AMP board
center SW AMP board
TC door board panel (R) board
clamp motor board
regulator board
RF board
IN/MIDIN SW board
MC board
connect board
head (B) board
HCD-FL7D
video board
SUB TRANS board
TRANS board
DSP board
INIT/count SW board
MB board
loading motor board