Pioneer PDP-42A3HD Service Manual page 59

5
Operation sequence flow (DTV mode detection –> DTV display)
the MPEG Deco rder
the DDR SDRAM
and MPEG Decorder
the MPEG Decorde r(TL955)
TL955 com municated
in Flashrom(U40)
TL955 re ads the EEPROM
EEPROM settings.
TL955 C omunicates
LGDT3303( U531)
The VSB signal f rom U531
co nvert YPbPr out put
through t he TL955
The YPbPr signal go es
to ADC(MST3388M),
it conv erts RGB format
RGB signal goe s
to deinterlacer(MDIN150)
5
6
+3.3 V inpu ts
+2.5V inpu ts
+1.2 V inpu ts
con nec ted IC
TL955 upl oads
the F/ W source
data in U31
TL955 s et the IC
in last stored
to f ind ch da ta.
6
7
DTV dis play
on
Module Digital Board
con verter LVDS signal
to TTL signal
LVDS Transmitter
transfer LVDS signal
to PDP Modul e
MDIN out put signal to
Scaler IC(ASI510)
PDP-42A3HD
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8
A
B
C
D
E
F
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