Diagrams; Circuit Boards Location - Sony STR-DE497P Service Manual

Q Q
3 7 6 3 1 5 1 5 0

4-1. CIRCUIT BOARDS LOCATION

STANDBY board
POWER board
TUNING board
T E
L 1 3 9 4 2 2 9 6 5 1 3
w w w
STR-DE497P/K4800P/K5800P
SECTION 4

DIAGRAMS

VIDEO board
DIGITAL board
DISPLAY board
MAIN board
x a o
y
. i
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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 diagram:
• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
specified.
• : internal component.
f
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
Note:
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
• A : B+ Line.
• B : B– Line.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
• 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.
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3 7 6 3
• Signal path.
F : TUNER (FM/AM)
L : VIDEO (AUDIO)
I : VIDEO
J
: CD (ANALOG)
c : CD (DIGITAL)
• Abbreviation
CND : Canadian model.
• Waveforms (DIGITAL Board)
1 1V/DIV 50nsec/DIV
12.288MHz
(CKOUT)
IC1101 qd
2 1V/DIV 0.2µsec/DIV
3.07MHz
IC1101 qf (BCK)
3 1V/DIV 50nsec/DIV
12.288MHz
IC1101 wa (XOUT)
u 1 6 3
4 1V/DIV 50nsec/DIV
.
12.288MHz
IC1501 el (MCLKI)
15 15
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STR-DE497P/K4800P/K5800P
2 4
9 9 8
for printed wiring boards:
• X : parts extracted from the component side.
• : internal component.
f
• : Pattern from the side which enables seeing.
1 / W or less unless otherwise
4
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Parts face side: Parts on the parts face side seen from the
(Side A)
• Abbreviation
Note:
CND : Canadian model.
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
C
Ne les remplacer que par une
Q
piéce portant le numéro
spécifié.
B E
Q
B C E
Q
B C E
1 5 1 5 0 8 9 2 4
1V/DIV 50nsec/DIV
5
3.4Vp-p
3.4Vp-p
13.59MHz
(MCLK2)
IC1201 qs
6 1V/DIV 50nsec/DIV
3.4Vp-p 3.4Vp-p
12.288MHz
(SCKOUT)
IC1201 qf
7 1V/DIV 50nsec/DIV
3.2Vp-p 2.5Vp-p
16MHz
m
IC1601 id (X1)
c o
4.4Vp-p
2
9 9
pattern face are indicated.
parts face are indicated.
These are omitted.
These are omitted.
9 8 2 9 9