Sylvania 6620LDG, Руководство по обслуживанию

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9-3
Audio Block Diagram
L2650BLA
MAIN CB
A
A
UDIO SIGNAL
A
UDIO-MUTE
V
O
LUME
T
O
SYSTEM
CONTR
OL BLOCK
DIA
GRAM
INPUT
-0(INV)
INPUT
-1(INV)
SCL SD
A
IC852
(INPUT SELECT)
SW CTL
3
11 15 12
4 1
9
10
TO IF/VIDEO BLOCK DIA
GRAM
TUNER
TUNER
(L-CH) (R-CH)
A
UDIO(L)
-IN1 JK704
SIF
JK705 A
UDIO(R)
-IN1 JK709 A
UDIO(L)
-IN2 JK710 A
UDIO(R)
-IN2
14
IC801
(A
UDIO AMP)
7
V
O
LUME
11
AMP AMP
MUTE /ST
ANDBY
CONTR
O
L
6 8 1
12
3
(R-CH) (L-CH)
2
Q802
REG+5V
T
O
IF/VIDEO
BLOCK DIA
GRAM
13
2
WF6
A
UDIO1
A
UDIO2
A
UDIO1
A
UDIO2
D
V
D-MUTE
DIGIT
A
L
A
U
DIO OUT
(CO
AXIAL)
JK1701
B
UFFER
Q1701
SWITCHING
Q804
SWITCHING
Q805
WF15
WF16
WF17
CN601
CN1701
SPDIF
6
D
VD-MUTE
13
7
D
VD-A
UDIO(R)
14
5
D
VD-A
UDIO(L)
12
9
SPDIF
16
D
VD MAIN CB
A UNIT
STEREO FIL
TER
75uS DE-EMPH
L+R FIL
TER
WIDE BAND RMS DET
WIDE BAND EXP
AND
SPECTRAL EXP
AND
SPECTRAL RMS DET
OFFSET CANCEL
L-CH R-CH
MA
TRIX
AG
C
OFFSET CANCEL
L-R FIL
TER
(L-R)/SAP SW
SAP FIL
TER
I2C DECORDER
SAP DEMOD
SAP OUT FIL
TER
29 30 21
27
24
IC851
(MTS/SAP A
UDIO SIGNAL PR
OCESS)
OFFSET CANCEL SIF/BB SW
INPUT VCA
SIF DEMOD
SPECTRAL FIL
TER
WIDE BAND FIL
TER
dBX DE-EMPH
D
VD-MUTE
D
V
D-A
UDIO(L)
D
VD-A
UDIO(R)
TP1801
DVD-A-L
TP1802
DVD-A-R
TO DIGIT
AL
SIGNAL PR
OCESS
BLOCK DIA
GRAM
<D
VD
SECTION>
JK801 HEADPHONE JA
C
K
SP801 SPEAKER R-CH
CN801
SP-R
1
SP-GND
2
SP802 SPEAKER L-CH
CN310
CN304
CN404
CLN802
CLN801
SP-L
1
SP-GND
2
INVER
TER CB
A
SP-L
22