Pioneer PDP-5000EX Service Manual page 181

5
No. Mark Pin Name
46 P22/TXD TXD
47 P23 ACTIVE
48 P70/SCK3_2 CLK_IF
49 P71/RXD_2 RXD_IF
50 P72/TXD_2 TXD_IF
51 P14/*IRQ0 KEY_SCAN
52 P15/*IRQ1/TMIB1 SR_IN
53 P16/*IRQ2 AV_LINK_IN
54 P17/*IRQ3/TRGV SR_EN_B
55 P33 EXP_A3
56 P32 EXP_A2
57 P31 EXP_A1
58 P30 EXP_A0
59 PB3/AN3 232C_DET
60 PB2/AN2 TEST1
61 PB1/AN1
62 PB0/AN0 KEY_ST
63 PB4/AN4 KEY_AD1
64 PB5/AN5 KEY_AD2
5
6
I/O
O Transmission data line of RS-232C for user/ For ROM writer writing
O Power supply for the master side Ucom ON/OFF
I Clock input for the master side Ucom
I Reception data for the master side Ucom
O Transmission data for the master side Ucom
I KEY code input
Remote control code input (Integrated unit: directly, Separate unit: use MDR
I
cable)
I N.C.
SR_EN_B
N.C.
N.C.
Hold N.C.
N.C.
I 232C_DET
Operation mode switch for Assy checker
I
(H: NORMA, L: Assy unit, M: Port check)
I N.C.
I KEY(A/D) setting
I Key voltage input of KEY(A/D)1
I Key voltage input of KEY(A/D)2
PDP-5000EX
6
7
Pin Function
7
8
A
Active
L
H
L
L
L
L
B
L
L
H
C
−
−
−
−
−
D
E
F
181
8