Yamaha DSP-AX1900, Service Manual

Page: 79 / 198

RX-V1900/HTR-6290/DSP-AX1900
79
RX-V1
90
0/HTR-6290/
DSP-AX1
90
0
No. Port Name
Function Name
(P.C.B.)
I/O Detail of Function
58 DTZEV DTZEV O
ZONE tone control IC serial transmission data (U, C, R, T, K, A, B, G, E, L
models)
59 VCC VCC MCU
60 /CEZEV0 /CEZEV0 O ZONE tone control chip selector (U, C, R, T, K, A, B, G, E, L models)
61 /CEZEV1 /CEZEV1 O
62 /Z2MT /Z2MT O Zone2 mute control (U, C, R, T, K, A, B, G, E, L models)
63 /Z3MT /Z3MT O Zone3 mute control (U, C, R, T, K, A, B, G, E, L models)
64 /FMTF /FMTF O Full mute FL/FR/SBL/SBR
65 – – O
66 /FMTS /FMTS O Full mute SL/SR
67 /FMTC /FMTC O Full mute Center
68 /FMTSW /FMTSW O Full mute SWL/SWR/SW MONO
69 DTEV DTEV O
E-VOLUME IC serial transmission data for MAIN ZONE (U, C, R, T, K, A, G, B,
E, L models)
70 CKEV CKEV O
E-VOLUME IC serial transmission clock for MAIN ZONE (U, C, R, T, K, A, G,
B, E, L models)
71 /CEEV /CEEV O E-VOLUME CE for MAIN, ZONE (U, C, R, T, K, A, G, B, E, L models)
72 CEA CEA O Chip select output for JRC audio select IC
73 SDTA SDTA O Data output for JRC audio select IC
74 VCC VCC MCU
75 SCKA SCKA O Clock output for JRC audio select IC
76 VSS VSS MCU
77 TRG2 TRG2 O DC trigger output2 (U, C, R, T, K, A, B, G, E, L models)
78 TRG1 TRG1 O DC trigger output1 (U, C, R, T, K, A, B, G, E, L models)
79 232PWR 232PWR O RS232C driver ON/OFF control
80 PRY PRY O Power relay control
81 RYBL RYBL O Relay control for power control of power amplifier B
82 RYBM RYBM O Relay control for power control of power amplifier B
83 /CSEX /CSEX O Chip select for extension IC
84 /ICEX /ICEX O Reset for extension IC
85 iPWR iPWR O iPod power control
86 /CSDAC2 VPOWER O VIDEO power control
87 CTSR PRI I Electric current protection detect
88 RXDR SDTN O
FL driver/OSD/ data output for extension IC/data output for RDS IC (G mod-
el)
89 RTSR SCKN O
FL driver/OSD/ data output for extension IC/data output for RDS IC (G mod-
el)
90 TXDR RDS/EXDI I Data in for extension IC
91 VCC VCC MCU
92 VMT VMT O Video output mute
93 VSS VSS MCU
94 /CSEPROM /OSDCE O OSD CE
95 VPOWER iPAP I iPod accessory power detect
96 RSELDT1 RSELDT1 O Rec out SW1 control (ROHM) data (U, C, R, T, K, A, B, G, E, L models)
97 RSELCK1 RSELCK1 O Rec out SW1 control (ROHM) clock
98 ISELDT1 ISELDT1 O Rec out SW1 control (ROHM) data, clock speed: 20us
99 ISELCK1 ISELCK1 O Rec out SW1 control (ROHM) clock
100 /ICFL /ICFL O FL driver initial clear
101 CEF2 CEF2 O FL enable2
102 PSWDET PSWDET IRQ Main, Zone2, 3 power key interrupt
103 MSW MSW IRQ Master SW (push lock SW)
104 REM1 REM2 IRQ
Remote control pulse input 2, remote control pulse input for Zone (U, C, R, T,
K, A, B, G, E, L models)
105 CEF1 CEF1 O FL enable1
106 BT232C BT232C I RS232C Flash write mode detect
107 CEC_PE ISA I Input selector rotary A
108 ICCEC ISB I Input selector rotary B
109 PSW2 PSW2 I INT5: PSW input after logic Key identification
110 PSW1 PSW1 I INT5: PSW input after logic Key identification
111 SPC SPC O +5SPC power ON/OFF control (L-ON/H-OFF: to reduce stand-by power)
112 /HPMT /HPMT O Headphone mute control
113 SDTIN2 PGA I Program rotary A