Hitachi 32PD3000E, Service Manual

Page: 69 / 93

32PD3000 / 42PD3000
68
25
2.
1
ADC1
FROM TUNER
AGC
IN
AGC level
detect
26
2.
2
PDDET FROM PDP IN
PDP ON
detect
27
2.
3
ADC3
FROM FRONT
SWITCHES
IN
Vol+/-
&Prog.+/- key
input
Port 3
31
3.
0
IF TRAP
ADJACENT
CHANNELS
OUT Not used
32
3.
1 1900TX-
3v3
OUT
PDP
communicatio
n via RS232C
33
3.
2
SCI
FROM
AVLINK
IN AV link input
34
3.
3
IR1 IR FROM PDP IN IR input
35
3.
4
FRONT-
SVHS-
SOCKET
IN
S-VHS socket
detect
36
3.
5
MAP1 A18 ON SRAM OUT
SRAM
mapping
37
3.
6
MAP2
A15/A18
SWITCH
OUT
SRAM
mapping
38
3.
7
1900RX IN
PDP
communicatio
n via RS232C
Port 4
48
4.
2
MEM RD# OUT
SRAM output
enable
49
4.
3
MEM WR# OUT
SRAM write
enable