Hitachi 32PD3000 Service Manual page 11

CRN Type
IC08 TA1370
XC01
IC02/IC03 TA1287
IC04
IC05
BU4066
IC06
IC07 BU4053
IC09 M62320FP I/O expanders
TA1287
4.4.1.
YUV/RGB switch (IC02/IC03)
Input:
Output:
Matrix control of RGB input:
Control:
AV3000 AVC Unit Service Manual
Description
Sync separation for
Component (progressive)
input
Crystal
YUV/RGB switch
Analogue switch
Analogue Switch for Sub-
video
CRN Remarks
IC02 YUV: Main signal
IC03 YUV: from IC02
YUV: at pin 1/2/3, Y:1 V
RGB: at pin 6/7/8, 0.7Vp-p
IC02 Connect to IC03
IC03 Connect to FC4 through buffers
YUV: at pin13/14/15, Y:1 V
IC02 0V: through
IC03 Always 1.6V:RGB > YUV
IC02 0V: external (Components input)
IC03 0V: Video
Remarks
Supply voltage: +9V at pin 11
2
Control by I C, SDA at pin 21 and SCL at pin 22
50KHz
Supply voltage: +9V at pin 16
Control by DC voltage at pins 9/10/11 and matrix at pin 16
Audio switch, main L/R or AV4 (components input)
L/R. main L/R comes from MSP3410 audio switch
Video switch, Front video or AV4 (in case of YCbCr
normal components), which is connected to
TDA9321 for sync separation
Audio switch, Centre sound or AV4 (components
input) L/R. Output goes to IC04 to switch another
audio input
Supply voltage: +9V at pin 16
Supply voltage: +5V at pin 13
2
Control by I C, SDA at pin 3 and SCL at pin 2
(incl. sync), UV:0.3Vp-p
p-p
(incl. sync), UV:0.3Vp-p
p-p
(YUV can also input.
In this case, matrix control should be through)
7
supply
voltage:
+9V at pin
14