Yamaha RX-Z11 Service Manual page 105

• Expansion port
IC161 : NJW1321FP1 (AVIDEO P.C.B.)
I/O expander for microcontroller
IC371, 372 : NJW1321FP1 (SUBCPU P.C.B.)
I/O expander for microcontroller
LC709004A (AEX1)
Function Name
No. Port Name
24 PIO0 DAC3_N_RST
23 PIO1 DAC2_N_RST
22 PIO2 DAC1_N_RST
21 PIO3 HP_N_MT
20 PIO4 SW_N_FMT
19 PIO5 PRERP_N_FMT
18 PIO6 PREFP_N_FMT
17 PIO7 PRESB_N_FMT
15 PIO8
14 PIO9 RP_N_FMT
13 PIO10 FP_N_FMT
12 PIO11 SB_N_FMT
11 PIO12 C_N_FMT
10 PIO13 S_N_FMT
9 PIO14 F_N_FMT
8 PIO15 MAD_N_RST
Serial/parallel converter/shift register
DIN
2
CLK# 3
CS#
4
RES#
21
port 0 I/O buffer
24
I/O [OFF]
(P.C.B.)
O Sur. back/F. Presence/ R. Presence DAC reset
O Surround / LFE C DAC reset
O Front DAC reset
O Headphone mute output
O Full mute SWL/SWR/SW MONO
O Preout mute RPL/RPR
O Preout mute FPL/FPR
O Preout mute SBL/SBR
SRY_BI O Relay control Bi-amplifier (for power amplifier assign). High: Bi-amplifier
setting
O Full mute RPL/RPR (for R. Presence amplifier)
O Full mute FPL/FPR (for F. Presence amplifier)
O Full mute SBL/SBR (for Sur. Back amplifier)
O Full mute Center
O Full mute SL/SR
O Full mute FL/FR
O ADC for main zone/Reset
14 DOUT
15 VDD
VSS
19
I/O control/output register
port 1 I/O buffer
17 15 8
Detail of Function
RX-Z11/DSP-Z11
105