Sony STR-DE685 - Circuit Boards Location and Waveforms

STR-DE685
2222
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. 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.
•
f
: internal component.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
• 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.
AUS: Australian model.
JE : Tourist model.
CH : Chinese model.
MX : Mexican model.
SP : Singapore model.
MY : Malaysia model.
TW : Taiwan model.
AR : Argentine model.
KR : Korean model.
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.
C
B
These are omitted.
E
Q
B
These are omitted.
C
Q
Q
E
BCE
Note:
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
4-7. CIRCUIT BOARDS LOCATION
MAIN board
STANDBY board
AC SELECT board
(E, Tourist model only)
VIDEO board
COMPONENT VIDEO board
(Except AEP, UK model)
S-VIDEO board
SPEAKER (B) board
DIGITAL boar
d
POWER SW board
HEADPHONE board
VIDEO3 board
DISPLAY board
JOG board
• Waveforms (DIGITAL Board)
3.4Vp-p
1
IC1101
qd
(CKOUT)
1V/DIV 50nsec/DIV
12.288MHz
3.4Vp-p
2
IC1101
qf
(BCK)
1V/DIV 0.2µsec/DIV
3.07MHz
3.6Vp-p
3
IC1101
wa
(XOUT)
1V/DIV 50nsec/DIV
12.288MHz
5Vp-p
4
IC1501
el
(MCLKI)
1V/DIV 50nsec/DIV
12.288MHz
3.6Vp-p
5
IC1201
qs
(MCLK2)
1V/DIV 50nsec/DIV
13.5MHz
4Vp-p
6
IC1201
qf
(SCKOUT)
1V/DIV 50nsec/DIV
12.288MHz
3Vp-p
7
IC1601
id
(X1)
1V/DIV 50nsec/DIV
20MHz
•Abbreviation
CND : Canadian model.
AUS: Australian model.
JE : Tourist model.
CH : Chinese model.
MX : Mexican model.
SP : Singapore model.
MY : Malaysia model.
TW : Taiwan model.
AR : Argentine model.
KR : Korean model.