Yamaha AX-V565, Service Manual, Page: 86 / 150

86
RX-V565/HTR-6250/
AX-V565
RX-V565/HTR-6250/AX-V565
Ohm 0 + 1.0k + 1.0k + 1.5k + 1.8k + 2.2k + 3.3k + 4.7k + 6.8k + 10.0k + 22.0k + 68.0k
V 0 – 0.15 0.15 – 0.42 0.43 – 0.70 0.71 – 0.99 1.0 – 1.27 1.28 – 1.56 1.57 – 1.86 1.86 – 2.14 2.14 – 2.4 2.4 – 2.65 2.66 – 2.91 2.92 – 3.17
A/D value
(3.3 V=255)
0 – 11 12 – 32 33 – 54 55 – 77 78 – 98 99 – 120 121 – 143 144 – 165 166 – 185 186 – 205 206 – 225 226 – 245
KEY2 (134 pin) DIRECT STRAIGHT INFO MEMORY
PRESET
<
PRESET
>
CATEGORY <
FM
CATEGORY >
AM
TUNING CH
<
TUNING CH
>
INPUT
<
INPUT
>
Ohm 0 + 1.0k + 1.0k + 1.5k + 1.5k + 2.2k + 3.3k + 4.7k + 22.0k + 33.0k
V 0 – 0.15 0.15 – 0.42 0.43 – 0.70 0.71 – 0.97 0.98 – 1.24 1.25 – 1.53 1.54 – 1.84 1.84 – 2.1 2.34 – 2.55 2.55 – 2.97
A/D value
(3.3 V=255)
0 – 11 12 – 32 33 – 54 55 – 75 76 – 95 96 – 118 119 – 142 143 – 162 181 – 197 198 – 229
KEY1 (133 pin)
SCENE
RADIO
SCENE
CD
SCENE
TV
SCENE
BD/DVD
– –
PROGRAM
>
PROGRAM
<
STANDBY/
ON
TONE
CONTROL
Key detection for A/D port
Key input (A/D) pull-up resistance 10 k-ohms
Destination detection for A/D port
Destination input (A/D) pull-up resistance 10 k-ohms
Model detection for A/D port
Model input (A/D) pull-up resistance 10 k-ohms
Ohm
(R3809 VIDEO P.C.B.)
0 1.2k 2.7k 4.7k 6.8k 10.0k 15.0k 47.0k 100.0k
V 0 – 0.2 0.2 – 0.6 0.6 – 0.9 0.9 – 1.2 1.2 – 1.5 1.5 – 1.8 1.8 – 2.3 2.4 – 2.9 2.9 – 3.2
A/D value (3.3 V=255) 0 – 15 15 – 46 46 – 69 69 – 92 92 – 115 115 – 139 139 – 177 185 – 224 224 – 247
DEST (139 pin) J U C R T K A B, G, E, F L
Ohm 2.2k 3.9k
V 0.5 – 0.8 0.8 – 1.1
A/D value (3.3 V=255) 40 – 52 65 – 176
MODEL (127 pin)
RX-V565/
AX-V565
HTR-6250
Pin
No.
Port Name
Function
Name
(P.C.B.)
I/O
Detail of Function
P
o
w
er On
Stb
y Thr
h
Standb
y
Stb
y Sleep
MCU Sleep
134
AN6
P106/AN6/KI2/RTP32
KEY2 AD AD AD I O
KEY2 AD value taken in
Duing PSW_DET interruption, distinguishes the used keys which are
switched to AD
135
AN5
P105/AN5/KI1/RTP31
PS1_PRT AD AD O O O PS protection detection 1
136
AN4
P104/AN4/KI0/RTP30
PS2_PRT AD AD O O O PS protection detection 2
137 P103 ISEL_RA O O O O O
138 P102 ISEL_RB O O O O O
139
AN1
P101/AN1/RTP11
DEST AD AD AD O O
AD destination discrimination
Data is taken in when resetting is cancelled
140
AVss
AVss
AVss MCU MCU MCU MCU MCU Microprocessor GND
141
AN0
P100/AN0/RTP10
DOCK_TYPE AD AD AD I O
DOCK discriminate
Identifies the connected DOCK type, then switches the action
During IPD_DET interruption, switches to AD, make a distinction
based on post-10 ms A/D value
Make a distinction from IPD_DET’s Low edge through post-10 ms A/D
value
142
Vref
Vref
VREF MCU MCU MCU MCU MCU Microprocessor power supply
143
AVcc
AVcc
AVcc MCU MCU MCU MCU MCU Microprocessor power supply
144
RXD4
P97/ADTRG/RXD4/
SCL4/STXD4
IPD_MISO SI I I I O
Asynchronous data input for iPod
To prevent pulling of iPod High output and microprocessor Low Fix
output, input setup