Marantz PM-11S3, Service Manual

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50
Pin Port I/o use Name
Port Setting
Note
Act. stby exit R
46 P55 I/O O T_CE_T L L PD 10k
Tone amp controll Analog SW(LC78212) CE
(TREBLE)
47 P17/TI02/TO02 I/O O V_MUTE H L PD 10k
Volume IC(MAS6116) MUTE 制御 MUTE
On:H
48 P16/TI01/TO01/INTP5 I/O O V_CS_R H L PD 10k Volume IC(MAS6116) CS (R ch)
49 P15/SCK20/SCL20 I/O O V_CLK L L PD 10k Volume IC(MAS6116) Serial Clock
50 P14/RxD2/SI20/SDA20 I/O O V_CS_L H L PD 10k Volume IC(MAS6116) CS (L ch)
51 P13/TxD2/SO20 I/O O V_DAT L L PD 10k Volume IC(MAS6116) Serial Data
52 P12/SO00/TxD0/TOOLTxD I/O O TXD - L PD 10k System Control Bus Output/Update
53 P11/SI00/RxD0/TOOLRxD/SDA00 I/O I RXD - - PU 47k System Control Bus Input/Update
54 P10/SCK00/SCL00 I/O O LED_MC H L PD 10k MC LED
55 P110 I/O O LED_PRE H L PD 10k PRE OUT LED
56 P111 I/O O LED_P-DI H L PD 10k P.DIRECT IN LED
57 P146 I/O O LED_DISP H L PD 10k Illumination LED
58 P147/ANI18 I/O O
LED_
TONE
H L PD 10k TONE LED
59 P100/ANI20 I/O O
LED_
SPK_A
H L PD 10k Speaker A LED
60 P153/ANI11 I/O O
LED_
SPK_B
H L PD 10k Speaker B LED
61 P152/ANI10 I/O O
LED_
STBY
H H PD 10k Standby LED
62 P151/ANI9 I/O O
LED_
POWER
H L PD 10k Power LED
63 P150/ANI8 I/O O POW_1 H L PD 10k
"Power Relay On (ON:H)
for Slow Start"
64 P27/ANI7 I/O O POW_2 H L PD 10k Power Relay On (ON:H)
65 P26/ANI6 I/O O L L
66 P25/ANI5 I/O I AD_1 - - PU 47k "Model Select
H/L = PM-11A/PM-11B"
67 P24/ANI4 I/O I AD_2 H - PD 5.6k Tact SW(DISPLAY/SPK_A/SPK_B/TONE)
68 P23/ANI3 I/O I AD_3 H - PD 5.6k Tact SW(ATT/PRE_OUT/P.DIRECT/MC)
69 P22/ANI2 I/O I D_SET - - PD 47k "LCD Driver:setup of communication mode
H/L = 100msec : as communication"
70 P21/ANI1/AVREFM I/O - AVREFM - - - GND
71 P20/ANI0/AVREFP I/O - AVREFP - - - 3.3V
72 P130 O O MUTE_D L L PD 10k PRE OUT Relay Control (MUTE:L)
73 P04/SCK10/SCL10 I/O O L L
74 P03/ANI16/SI10/RxD1/SDA10 I/O O L L
75 P02/ANI17/SO10/TxD1 I/O I
M_B_
DOWN
L - PD 47k Detect Main Power On
76 P01/TO00 I/O I BI - - PU 47k Stereo/Bi Amp Select (H/L)
77 P00/TI00 I/O O S_CE L L PD 47k Relay controll 4094 CE
78 P144/SO30/TxD3 I/O O S_DI L L - Relay controll 4094 Serial Data
79 P143/SI30/RxD3/SDA30 I/O O S_OE H L - Relay controll 4094 OE
80 P142/SCK30/SCL30 I/O O S_CLK H L - Relay controll 4094 Serial Clock
Act: Active, Init: Initial, Stby: Standby, Ext R: External R