Yamaha HTR-6150 Service Manual page 53

• Microprocessor ADC select port
IC81: ADC084S021CIMM (DSP P.C.B.)
4-channel, 200 kSPS, 8-bit A/D converter
IN1
IN2
MUX
IN3
IN4
Pin No. Port Name
1 /CS
2 VA
3 GND
4 IN4
5 IN3
6 IN2
7 IN1
8 DIN
9 DOUT
10 SCLK
Key detection for A/D port
Key input (A/D) pull-up resistance 10 k-ohms
U, C, R, T, K, A, G, E, F, L models
Ohm 0 + 1.0 k
V 0–0.2 0.2–0.4
KEY
SPEAKERS
INPUT 0 –
A/B/OFF
(7 pin)
KEY
INPUT 1 – –
(6 pin)
B model
Ohm 0 + 1.0 k
V 0–0.2 0.2–0.4
KEY
SPEAKERS
INPUT 0 –
A/B/OFF
(7 pin)
KEY
INPUT 1 – –
(6 pin)
8-Bit
SUCCESSIVE
T/H
APPROXIMATION
ADC
GND
CONTROL
LOGIC
Function Name
/ADC_CS CS for microprocessor
+3.3S
Power supply +3.3V
DGND Ground of external
ADC_COM2 SPI bus COM (IC83)
ADC_COM1 SPI bus COM (IC82)
KEY1 Key input 1
KEY0 Key input 0
SPIMI Master output/slave input
SPIMO Master input/slave output
SPISCK SPI clock
+ 1.0 k + 1.5 k + 2.2 k
0.4–0.7 0.7–1.0 1.0–1.3
TONE PROGRAM PROGRAM
CONTROL < >
AUDIO INPUT INPUT
SELECT > <
+ 1.0 k + 1.5 k + 2.2 k
0.4–0.7 0.7–1.0 1.1–1.3
TONE PROGRAM PROGRAM
CONTROL <
>
AUDIO INPUT INPUT
SELECT > <
RX-V563/HTR-6150/DSP-AX563
V A
CS 1
V A 2
GND
ADC084S021
GND 3
IN4 4
IN3 5
SCLK
CS
DIN
DOUT
Detail of Function
+ 2.2 k + 3.3 k + 4.7 k
1.3–1.6 1.6–1.9 1.9–2.1
STRAIGTH
A/B/C/D/E BAND
EFFECT
PRESET/ PRESET/
DIRECT TUNING TUNING
< >
+ 2.2 k + 3.3 k + 4.7 k
1.3–1.6 1.6–1.9 1.9–2.1
STRAIGTH
– –
EFFECT
DIRECT – –
10 SCLK
DOUT
9
8 DIN
7 IN1
6 IN2
+ 6.8 k + 10.0 k + 22.0 k
2.1–2.4 2.4–2.7 2.7–3.0
EDIT
ZONE2 SYSTEM
PRESET/
OFF
ON/OFF
TUNING
INFO
TUNING ZONE
MEMORY
AUTO/ CONTROL
MAN'L
+ 6.8 k + 10.0 k + 22.0 k
2.1–2.4 2.4–2.7 2.7–2.9
– – –
– – –
53