Hitachi DV-P250U Manual De Servicio página 18

D/A CONVERTER
+5V_STBY
1
2 Q1506
3 FROM SH u-COM
FROM SH u-COM 1
Q1505
A MUTE
3
-8V
D/A CONVERTER
FROM SH u-COM
D/A CONVERTER
FROM SH u-COM
D/A CONVERTER
FROM SH u-COM
4. 5.1CH Difference List
Output
Downmix L/R
Front L/R
Surround L/R
Center/Woofer
Chapter 1
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AUDIO CIRCUIT
LR CLOCK DIGITAL AUDIO SIGNAL
16
VOUTL
IC1501
13
VOUTR
+5VAU
1
2 Q1501
3
DTA124EKA
-8V
LR CLOCK DIGITAL AUDIO SIGNAL
16
VOUTL
IC1502
13
VOUTR
+5VAU
1
2 Q1507
3
DTA124EKA
-8V
LR CLOCK DIGITAL AUDIO SIGNAL
16
VOUTL
IC1503
13
VOUTR
+5VAU
1
2 Q1508
3
DTA124EKA
-8V
LR CLOCK DIGITAL AUDIO SIGNAL
16
VOUTL
IC1504
13
VOUTR
+5VAU
1
2 Q1509
3
DTA124EKA
-8V
D/A Converter
IC 1501
IC 1502
IC 1503
IC 1504
IC1509A
AMP
IC1507A
FILTER
2
2 1
1 3
3
FILTER AMP
IC1507B
IC1509B
5
+
7 5
+
6 7
-
6
-
D3301
1
3
2
A MUTE
FILTER
IC1510A
AMP
IC1508A
2
2 1
1 3
3
FILTER AMP
IC1508B
IC1510B
5
+
7 5
+
6 7
-
6
-
D1302
1
3
A MUTE 2
IC1512A
AMP
IC1511A
FILTER
2
2 1
1 3
3
FILTER AMP
IC1511B
IC1512B
5
+
7 5
+
6 7
-
6
-
D1303
1
3
A MUTE 2
FILTER
IC1514A
AMP
IC1513A
2
2 1
1 3
3
FILTER AMP
IC1513B
IC1514B
5
+
7 5
+
6 7
-
6
-
D1304
1
3
A MUTE 2
Operational amplifier
IC 1507, IC 1509
IC 1508, IC 1510
IC 1511, IC 1512
IC 1513, IC 1514
AUDIO MUTE
Q3503
DOWNMIX-Lch
DOWNMIX-Rch
Q3504
AUDIO MUTE
Q1310 FRONT-Lch
FRONT-Rch
Q1311
AUDIO MUTE
Q1306
SURROUND-Lch
SURROUND-Rch
Q1307
AUDIO MUTE
Q1308 CENTER
WOOFER
Q1309
15