Hitachi 32PD3000 Service Manual page 9

CRN
Type
IC301 MSP3410
X300
IC300 TDA7433
IC303 TDA2822D Headphone sound amplifier
PL300
IC302
TDA8440
(OPTION)
Audio Switch
4.3.2.
Pin
Description
No.
52 Input SCT101 (AV1) sound L input
53 Input SCT101 (AV1) sound R input
49 Input SCT100-TOP (AV2) sound L input
50 Input SCT100-TOP (AV2) sound R input
46 Input SCT100-BOTTOM (AV3) sound L input
47 Input SCT100-BOTTOM (AV3) sound R input
43 Input front AV (FRONT) sound L input
44 Input front AV (FRONT) sound R input
55 Input mono sound input from IC100
37 Output SCT101 (AV1) sound L output
36 Output SCT101 (AV1) sound R output
34 Output SCT100-TOP (AV2) / SCART3 (AV3) sound L output
33 Output SCT100-TOP (AV2) / SCART3 (AV3) sound R output
29 Output Speaker / Headphone/phone sound L output
28 Output Speaker / Headphone/phone sound R output
Output
5 SOUND SWITCH for trap of TV input signal
Control
AV3000 AVC Unit Service Manual
Description
NICAM/A2 sound decoder and audio
switch
Crystal
Basic audio processor
Connector for front control PCB
Remarks
Supply voltage: +5V at pin 18 and pin 51
Control by I
pin 9
18.432MHz
Supply voltage: +8V at pin 17
Control by I
pin 18
Supply voltage: +6.5V at pin 2
Future option. Not used for this model.
5
2
C, SDA at pin 10 and SCL at
2
C, SDA at pin 19 and SCL at