HT-BE1, SA-WBE1, SS-BE1 (serv.man2) - Sony Audio Service Manual (repair manual). Page 2

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2
HT-BE1/SA-WBE1/SS-BE1
TABLE OF CONTENTS
1. Schematic Diagram –Main (1/5) Section– .............................. 3
2. Printed Wiring Board –Main (1/2) Section– ........................... 4
3. Printed Wiring Board –Main (2/2) Section– ........................... 5
4. Schematic Diagram –Main (2/5) Section– .............................. 6
5. Schematic Diagram –Main (3/5) Section– .............................. 7
6. Schematic Diagram –Main (4/5) Section– .............................. 8
7. Schematic Diagram –Main (5/5) Section– .............................. 9
8. Electrical Parts List ................................................................ 10
Note on 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 
 and 
1
/
4
 
W or less unless otherwise
specified.
2
: nonflammable 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.
Note:
Les composants identifiés par
une marque 
0
 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
A
: B+ Line.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
• Voltages are taken with a VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
: LINE
c
: DIGITAL AUDIO (OPTICAL)
J
: DIGITAL AUDIO (COAXIAL)
• Abbreviation
CND : Canadian model.
SP
: Singapore model.
MY
: Malaysia model.
MX
: Mexican model.
• (
) : Page of Service Manual.
((
)) : Page of Supplement-1.
Note on Printed Wiring Boards:
• X
: parts extracted from the component side.
: Pattern from the side which enables seeing.
• Abbreviation
CND : Canadian model.
SP
: Singapore model.
MY
: Malaysia model.
MX
: Mexican model.
• (
) : Page of Service Manual.
((
)) : Page of Supplement-1.
• Waveforms
1
IC501 
wk
 (XT0)
1V/div   50nsec/div
12.0MHz
2
IC803 
wa
 (XOUT)
1V/div   50nsec/div
12.288MHz
3
IC801 
ek
 (X2)
1V/div   20nsec/div
4
IC802 
qs
 (MCLK2)
1V/div   50nsec/div
16.0MHz
13.5MHz
5
IC802 
qf
 (SCKOUT)
1V/div   50nsec/div
13.5MHz
3.0Vp-p
3.5Vp-p
2.6Vp-p
3.1Vp-p
4.0Vp-p
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