Circuit Boards Location - Sony STR-DE895 Service Manual

Q Q
3 7 6 3 1 5 1 5 0

4-8. CIRCUIT BOARDS LOCATION

STANDBY board
GUIDE board
BLOCK board
POWER board
HEADPHONE board
OPTICAL3 board
FRONT AV board (DE995)
VIDEO3 board (DE895)
DISPLAY board
T E
L 1 3 9 4 2 2 9 6 5 1 3
• Waveforms (DIGITAL Board)
1V/DIV 50nsec/DIV 1V/DIV 50nsec/DIV
1 4
3.4Vp-p
13.5MHz
12.288MHz
(CKOUT) (MCLK2)
IC1301 qd IC1501 qs
1V/DIV 20nsec/DIV
2 1V/DIV 0.2µsec/DIV 5
3.4Vp-p
3.07MHz 40nsec
(BCK) (SCKOUT)
IC1301 qf IC1501 qf
3 1V/DIV 50nsec/DIV 6 1V/DIV 20nsec/DIV
3.2Vp-p
w w w
12.288MHz 16.5MHz
IC1301 wa (XOUT) IC1101 tj
.
AC SELECT board (E2, E3 model)
SPEAKER B board
VIDEO board
UP CONVERT board (DE995)
S-VIDEO board
AUDIO VIDEO board
DIGITAL board
MAIN board
RETAINER board
JOG board
2ND ROOM board (DE995)
• Waveform (VIDEO Board)
1 1V/DIV 20nsec/DIV
3.2Vp-p 3.8Vp-p
14.31818MHz
(EXS)
IC2301 8
4.0Vp-p
• Waveform (UP CONVERT Board)
(STR-DE995 only)
1V/DIV 20nsec/DIV
1
3.2Vp-p 1.2Vp-p
x a o 3.5795MHz
y
(X1) 4 (XTAL)
IC3101
i
http://www.xiaoyu163.com
8
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
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.
Q Q
• Circled numbers refer to waveforms.
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.
E2 : AC 120 V area in E model.
E3 : AC 240 V area in E model.
MX : Mexican model.
u 1 6 3
.
25 25
http://www.xiaoyu163.com
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)
Note:
C
Les composants identifiés par
Q
une marque 0 sont critiques
pour la sécurité.
B E
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Q
B C E
Q
B C E
• Abbreviation
CND : Canadian model.
E2 : AC 120 V area in E model.
1 5 1 5 0 8 9 2 4
E3 : AC 240 V area in E model.
MX : Mexican model.
m
c o
STR-DE895/DE995
2
9 9
pattern face are indicated.
parts face are indicated.
These are omitted.
These are omitted.
9 8 2 9 9