Sony STR-DE997 Service Manual page 19

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 1 / W or less unless otherwise
4
specified.
• : internal component.
f
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
Note: Note:
Les composants identifiés par
The components identi-
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
Replace only with part piéce portant le numéro
spécifié.
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.
• Signal path.
F
: TUNER (FM/AM)
L : VIDEO (AUDIO)
I : VIDEO
J
: CD (ANALOG)
c : CD (DIGITAL)
• Abbreviation
CND : Canadian model.
STR-DE997
All manuals and user guides at all-guides.com
for printed wiring boards:
• X : parts extracted from the component side.
•
f : internal component.
• : Pattern from the side which enables seeing.
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B) pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A) parts face are indicated.
• Abbreviation
CND : Canadian model.
C
Q These are omitted.
B E
Q
B C E
These are omitted.
Q
B C E
• Waveforms (DIGITAL Board)
1 1V/DIV 50nsec/DIV
3.8Vp-p
12.288MHz
IC1301 qd (CKOUT)
2 1V/DIV 0.2µsec/DIV
3.2Vp-p
3.07MHz
(BCK)
IC1301 qf
1V/DIV 50nsec/DIV
3
3.5Vp-p
12.288MHz
(XOUT)
IC1301 wa
1V/DIV 50nsec/DIV
4
2.2Vp-p
13.9MHz
IC1501 9 (MCLK1)
5 1V/DIV 50nsec/DIV
3.5Vp-p
13.9MHz
IC1501 qs (MCLK2)
6 1V/DIV 50nsec/DIV
3.8Vp-p
12.288MHz
IC1501 qf (SCKOUT)
1V/DIV 50nsec/DIV
7
2.1Vp-p
16.5MHz
(X1)
IC1101 tj
19 19
STR-DE997
• Waveforms (VIDEO Board)
1V/DIV 20nsec/DIV
1
1.8Vp-p
14.31MHz
(EXS)
IC3501 8
1V/DIV 20nsec/DIV
2
2.6Vp-p
3.5795MHz
wh (XNTSC)
IC3701
• Waveform (DISPLAY Board)
1V/DIV 20nsec/DIV
1
2.6Vp-p
8MHz
3 (XOUT)
IC100