Yamaha HTR-6230, Service Manual

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RX-V365/HTR-6230
RX-V365/HTR-6230
Pin No. Port Name Function Name I/O Detail of Function
1 DGND GND – Ground of external
2 DGND GND – Ground of external
3 DGND GND – Ground of external
4 /VINTSW VROUT2 O Voltage regulator drive for Q101
5 /VINTSW VROUT1 O Voltage regulator drive for Q101
6 VDDEXT VDDEXT – I/O power supply (EX3.3)
7 DGND GND – Ground of external
8 DGND GND – Ground of external
9 DGND GND – Ground of external
10 CLKIN CLKIN I Clock/oscillation input
11 XTAL XTAL O Oscillation output
12 VDDEXT VDDEXT – I/O power supply (EX3.3)
13 /DRESET /RESET I Delayed reset
14 NMI/DGND NMI I (Pull-down)
15 DGND GND – Ground of external
16 – RTXO O
17 RTXI/DGND RTXI I (Pull-down)
18 – VDDRTC –
19 DGND GND – Ground of external
20 VDDEXT VDDEXT – I/O power supply (EX3.3)
21 – PPI_CLK I
22 – PP10 I/O
23 – PP11 I/O
24 – PP12 I/O
25 VDDINT VDDINT – Power supply of microprocessor (BF1.2)
26 – PP13 I/O
27 VIB PF15 O Video select B
28 VIA PF14 O Video select A
29 – PF13 I
30 DGND GND – Ground of external
31 VDDEXT VDDEXT – I/O power supply (EX3.3)
32 /ICXM PF12 O
33 /XMPWR PF11 O
34 INTAK PF10 I CODEC IC (IC301) interrupt
35 FSYNC/TFS0 PF9 I Frame sync detect
36 R2A_DATA PF8 O DATA for R2A volume/selector IC (IC162)
37 R2A_CLK PF7 O CLK for R2A volume/selector IC (IC161)
38 VRB PF6 I Volume rotary B
39 DGND GND – Ground of external
40 DGND GND – Ground of external
41 DGND GND – Ground of external
42 DGND GND – Ground of external
43 DGND GND – Ground of external
44 DGND GND – Ground of external
45 VDDEXT VDDEXT – I/O power supply (EX3.3)
46 VRA PF5 I Volume rotary A
47 REM PF4 I IR remote control pulse input
48 PSW PF3 I Power switch (STANDBY/ON)
49 /SPISEL2 PF2 O CS for EEPROM (IC102)
50 /SPISEL1 PF1 O CS for 4ch ADC (IC401)
51 /EXPE PF0 O Extended port enable
52 VDDINT VDDINT – Power supply of microprocessor (BF1.2)
53 SPISCK SCK I/O SPI clock
54 SPIMI MISO I/O Master input/slave output
55 SPIMO MOSI I/O Master output/slave input
56 DGND GND – Ground of external
57 VDDEXT VDDEXT – I/O power supply (EX3.3)
58 DT1SEC DT1SEC O Serial port 1, secondary transmission data
59 DT1PRI DT1PRI O Serial port 1, primary transmission data
60 TFS1 TFS1 I/O Serial port 1, frame asynchronous transmission