Marantz PM-KI-PEARL /N1B/U1B Service Manual page 51

Pin PORT
53 P16_/IRQ2 PROT_2
54 P17_/IRQ3_TRGV PROT_1
55 P33 L_CS
56 P32 L_SCL
57 P31 L_RS
58 P30 L_RES
59 PB3_AN3 TEST1
60 PB2_AN2 TEST2
61 PB1_AN1 D-SET
62 PB0_AN0 AD3
63 PB4_AN4 HP_DET
64 PB5_AN5 NC3
SIGNAL
I/O
NAME
I Power supply error detect
I DC/over current/Temp detect
O LCD-Controler(ST7032) CE
O LCD-Controler(ST7032) Serial Clock Out
O LCD-Controler(ST7032) Register Select
O LCD-Controler(ST7032) Reset
I PCB mode setting 1
I PCB mode setting 2
I LCD-Controler(SPLC093C) mode setting
I Right key A/D pin
I Head phone jack detect (PULL UP)
I
Functions
73
Description
Active L(POW_OFF)
Active L(VOL -∞)
Active L
H/L = Data/Instruction
Active L(Reset)
Port check 1
Port check 2
H/L 100msec, each time
Active L(Head phone jack detect)
NC