32PD3000 / 42PD3000
23
Schematic Page 2 ; Sound / AV3 Control
IC301
NICAM/A2 sound decoder and audio switch ; MSP3410
supply voltage ; +5V at pin 18 and pin 51
control by ; I2C, SDA at pin 10 and SCL at pin 9
X300
18.432MHz
* NICAM/A2 decoder and sound control
QSS signal is coming from IC100 to pin 58 through amplifier Q308/307. The signal
level at pin 58 should be 0.1 ~ 0.8Vpp.
Sound output L/R at pin 28 and 29 are connected through amplifier Q310/Q312 for L
and Q309/Q311 for R to adjust 500mVrms at PL700 pin 4 and 6 In the condition of AV
sound input 500mVrms, FM modulation 54%
Sound output L/R at pin 28 and 29 are also connected through IC300 TDA7433 and
IC303 to headphone.
* Audio switch
input
pin 52
SCART101(AV1) sound L input
pin 53
SCART101(AV1) sound R input
pin 49
SCART102(AV2) sound L input
pin 50
SCART102(AV2) sound R input
pin 46
SCART100(AV3) sound L input
pin 47
SCART100(AV3) sound R input
pin 43
front AV (FRONT) sound L inout
pin 44
front AV (FRONT) sound R inout
pin 55
mono sound input from IC100
output
pin 37
SCART101(AV1) sound L output
pin 36
SCART101(AV1) sound R output
pin 34
SCART102(AV2) / SCART3(AV3) sound L output
pin 33
SCART102(AV2) / SCART3(AV3) sound R output
pin 29
Speaker / Headphone/phone sound L output
pin 28
Speaker / Headphone/phone sound R output
output
pin 5
SOUND SWITCH for trap of TV input signal
IC300
Basic audio processor ; TDA7433
supply voltage ; +8V at pin 17
control by ; I2C, SDA at pin 19 and SCL at pin 18
Monitor sound L/R outputs for speaker are connected headphone and phone out. IC300
contributes separate volume control
input
pin 6
Audio sound L input
pin 5
Audio sound R input
Содержание 32PD3000E
Страница 17: ...32PD3000 42PD3000 16 Block Diagrams AVC to PDP Block Diagram ...
Страница 18: ...32PD3000 42PD3000 17 AVC Block Diagram ...
Страница 19: ...32PD3000 42PD3000 18 AVC Power Block Diagram ...
Страница 20: ...32PD3000 42PD3000 19 Major Connectors ...
Страница 21: ...32PD3000 42PD3000 20 Monitor Block Diagram ...
Страница 34: ...32PD3000 42PD3000 33 Schematic Drawings ...
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Страница 48: ...32PD3000 42PD3000 47 Circuit Boards ...
Страница 49: ...32PD3000 42PD3000 48 ...
Страница 50: ...32PD3000 42PD3000 49 AV Power Side A ...
Страница 51: ...32PD3000 42PD3000 50 AV Power Side B ...
Страница 55: ...32PD3000 42PD3000 54 Troubleshooting Flow Charts AV Power 1 ...
Страница 56: ...32PD3000 42PD3000 55 AV Power 2 ...
Страница 57: ...32PD3000 42PD3000 56 AV Power 3 ...
Страница 58: ...32PD3000 42PD3000 57 AV Circuit ...
Страница 59: ...32PD3000 42PD3000 58 Assembly Drawings Audio Video ...
Страница 63: ...32PD3000 42PD3000 62 32 inch Monitor Wiring A ...
Страница 64: ...32PD3000 42PD3000 63 32 inch Monitor Wiring B ...
Страница 65: ...32PD3000 42PD3000 64 42 inch Monitor Wiring A ...
Страница 66: ...32PD3000 42PD3000 65 ...
Страница 74: ...THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA ...
Страница 78: ...HITACHI SM003 32PD3000 42PD3000 Power Supply Block Diagram ...
Страница 79: ...HITACHI SM003 32PD3000 42PD3000 Panel Connectors ...
Страница 80: ...HITACHI SM003 32PD3000 Power Supply Board ...
Страница 81: ...HITACHI SM003 32PD3000 Power Supply Schematic 1 of 5 ...
Страница 82: ...HITACHI SM003 32PD3000 Power Supply 2 of 5 ...
Страница 83: ...HITACHI SM003 32PD3000 Power Circuit 3 of 5 ...
Страница 84: ...HITACHI SM003 32PD3000 Power Circuit 4 of 5 ...
Страница 85: ...HITACHI SM003 32PD3000 Power Circuit 5 of 5 ...
Страница 86: ...HITACHI SM003 42PD3000 Power Supply Board ...
Страница 87: ...HITACHI SM003 42PD3000 Power Circuit 1 of 5 ...
Страница 88: ...HITACHI SM003 42PD3000 Power Circuit 2 of 5 ...
Страница 89: ...HITACHI SM003 42PD3000 Power Circuit 3 of 5 ...
Страница 90: ...HITACHI SM003 42PD3000 Power Circuit 4 of 5 ...
Страница 91: ...HITACHI SM003 42PD3000 Power Circuit 5 of 5 ...