Yamaha NX-E700, Service Manual

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40
DRX-730/NX-E700
DRX-730/NX-E70
0
No. Function Name Port Name I/O Detail of Function
41 EPM P55 I * Connect to GND via resistor (for Flash writing)
* Pulldown
required
(47 k-ohms)
42 P54 O VIDEO YUV/RGB selection output -> unused
43 VMUTE P53 O
VIDEO mute output (H: mute off, L: mute on)
DVD/USB input selection: mute off setting
44 SCL_VOL P52 I/O Selector/Volume I2C clock output PullUp required
45 SDA_VOL P51 I/O Selector/Volume I2C data output PullUp required
46 CE P50 I * Connect to Vcc2 via resistor (for Flash writing)
* Pullup
required
47 P47 I Pulldown
48 P46 I Pulldown
49 P45 I Pulldown
50 DOCK_POWER P44 O
DOCK adapter power supply control
(H: power on, L: power off)
51 /HPMT P43 O AMP/HP mute output (H: mute off, L: mute on)
52 /SWMT P42 O SW mute output (H: mute off, L: mute on)
53 USB_EN P41 O
USB power supply control ENABLE output
(H: enable, L: disable)
54 USB_PRT P40 I
USB power supply control protection input
(H: when normal, L: when abnormal)
55 TUNED P37 I TUNED detection (L: with signal)
56 STEREO P36 I STEREO detection (L: STEREO)
57 TMUTE P35 O TUNER MUTE output (H: mute on)
58 TUDO P34 O PLL IC serial dataoutput
59 TUCK P33 O PLL IC serial clock output
60 TUDI P32 I PLL IC serial data input
61 TUCE P31 O PLL IC serial CE output
62 VCC2 – Power 5V
63 P30 I Pulldown
64 VSS – GND
65 DA_ZFLG P27 I DAC Zero Flag detection (H: zero detected)
66 DA_LATCH P26 O DAC serial CE output
67 DVDMUTE_EN P25 O DVD MUTE ENABLE output (H: enable, L: disable)
68 RDS_RST P24 O RDS IC reset output (H: reset, L: usual operation)
69 DVD_PS P23 O
Power supply control output for DVD
(H: output on, L: output off)
70 PRY P22 O
Main unit power (relay) control output
(H: relay on, L: relay off)
71 RDS_READY P21 I RDS IC READY input (H: with data, L: without data) PullUp required
72 HPDET P20 I HP detection (H: HP inserted)
73 REM P17 INT-IN Remote control reception interrupt
74 STBY P16 INT-IN STANDBY/ON SW input interrupt (H: SW on)
75 KEY_DET P15 INT-IN
AD KEY detection interrupt (Arrange detection key voltage
to 0.2Vcc or lower)
* Connect to AD KEY input terminal
76 RDS_RDCL P14 O RDS serial clock output
77 GSDT P13 O General purpose serial data output (FLD/DAC)
78 RDS_RDDA P12 I RDS serial data input
79 GSCK P11 O General purpose serial clock output (FLD/DAC)
80 FL_CE P10 O FL driver IC CE output
81 /ICFL P07 O FL driver IC RESET output (L: RESET)
82 LED_H P06 O LED output HDMI (H: lit)