FUNAI DR-A2631, Service Manual

Page: 24 / 68

1-9-5
E68C4BLA
Audio Block Diagram
IC901
(A
UDIO D/A CONVER
TER)
DIGIT
AL
A
UDIO OUT
(CO
AX1AL)
DIGIT
AL
A
UDIO OUT
(OPTICAL)
JK1207
A
UDIO-MUTE
RGB-THR
OUGH
JK1209
JK1210
B
UFFER
Q1247
Q1245
Q1244
Q1255
A
UDIO(L)
-OUT
A
V CB
A
D
VD MAIN CB
A
A
UDIO(R)
-OUT
JK1202
A
UDIO(L)
-IN4 A
UDIO(R)
-IN4
JK1203
JK1204
A
UDIO(L)
-IN3 A
UDIO(R)
-IN3
SIF OUT
11
SPDIF
17
17
A
UDIO(L)-OUT
15
15
A
UDIO(R)-OUT
19
19
DVD-A
UDIO-MUTE
13
13
A
UDIO(L)-IN
11
11
A
UDIO(R)-IN
44
TU-A
UDIO(R)
2
2
A
UDIO-MUTE
22
SIF
55
TU-A
UDIO(L)
33
A
UDIO(L)-OUT2
66
A
UDIO(L)-IN2
55
A
UDIO(R)-IN2
11
A
UDIO(R)-OUT2
(OP AMP
)
IC1216
T
O DIGIT
AL
SIGNAL PR
OCESS
BLOCK DIA
GRAM
TU1201 (TUNER UNIT)
OP AMP
A
UDIO D/A
CONVER
TER
OP AMP
22
10 24
6 8
27 33 32 13 15
26 25
1 7
2 6
(A
UDIO INPUT SELECT)
IC1208
3
13
4 2 5
11
1
12 15 14
MUTE-ON
DRIVE
Q1256
MUTE-ON
9
10
7 6 8
15 14 16
4 3 5
IC902
(A
UDIO A/D CONVER
TER)
A
UDIO A/D
CONVER
TER
10 11 12
1 2
15
SPDIF
CN501
CN1203
CN601
CN1204
BCK D
ATA
LRCK MD MC SCK
2
ML
L-CH R-CH
MUTE
BCK D
ATA
LRCK SYSCLK
R-CH L-CH
IN3 IN4
(L-CH)
IN3
TU/IN1/2 TU/IN1/2
IN4
(R-CH)
SW CTL
(OP AMP)
IC1222
OP AMP OP AMP
2 6
1 7
T
O SYSTEM
CONTR
OL
BLOCK DIA
GRAM
REC AUDIO SIGNAL
PB AUDIO SIGNAL
WF8
WF7
FIBER OPTIC TRANS MODULE
Q1257
MUTE-ON
Q1258
MUTE-ON
Q2002
MUTE-ON
Q2001
MUTE-ON
IF SIGNAL PROCESS
AFV CBA
JACK CBA
CN1209
CN1210
CN2001
CN1
JK2001
A
UDIO(R)-IN2
A
UDIO(L)-OUT2
A
UDIO(R)-OUT2
2
A
UDIO(L)-IN2
6 1 3
JK1206
A
UDIO(R)-IN1
A
UDIO(L)-OUT1
A
UDIO(R)-OUT1
2
A
UDIO(L)-IN1
6 1 3
IC1219
(INPUT/OUTPUT SELECT)
AMP AMP
B
UFFER
DRIVER DRIVER
16 20 12 14
23
22 21
AMP AMP
B
UFFER
LOGIC CONTR
OL
DRIVER DRIVER
SCL
T
O SYSTEM CONTR
OL
BLOCK DIA
GRAM
SD
A
A,C
Comparison Char
t of
Models & Marks
Model
Mark
DR-A2677 DR-A2631
A B
DR-B2737
C
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