Ad Data Check - Yamaha RX-V795a Service Manual

RX-V795a/RDS/HTR-5170

(9) AD DATA CHECK

The A/D conversion values of the main CPU which detects key scan, protection, etc. are displayed in % (100%: 5V).
All signal processing before this menu is executed will be held.
The keys on the main unit cannot be operated to detect the values of all keys in the K0/K1 and K2/RE pages. Turning
the rotary encoder (input selector on the main unit) will switch the submenu.
9.AD CHECK :000
9.K0:100K1:100
9.K2:100RE:
9.SI: OTP: 28
9.DC: 7PS: 23
AD Value 0
K0 TUNING UP
K1 A/B/C/D/E
K2 EXT. DECODER
AD Value 50
K0 MEMORY
K1 5
K2 +
Caution
1.If K0/K1/K2 are more than ±4% from the reference values, normal operation will not be executed.
2. If TP is 5% or less, the protection function will operate and power will turn off. If it is 40% or more, it is possible that there
is an abnormality in the thermal detection system.
3. If DC and PS are outside the normal values, the protection function will operate and power will turn off.
17
AD CHECK : FAN control based on detected temperature
With the voltage value detected from the temperature detection
circuit read as a temperature data by the A/D function of the
microprocessor, the FAN speed is controlled in 3 levels based
on that data.
bit 2 1 0
0 0 0
FAN 3.0V
FAN 3.7V
FAN 5.0V
Press the "PROGRAM w" key.
K0/K1: Panel key on main unit
Tuning the rotary encoder.
0
K2: Panel key on main unit
RE: REC OUT (value : 0)
Tuning the rotary encoder.
SI: Tuner signal level
TP: Heat sink temperature
(normal value: 6-40)
Press the "PROGRAM w" key.
DC: DC protection value
(normal value: 1-13)
PS: Power voltage protection value
(normal value: 18-29)
10 20
TUNING DOWN FM/AM
1 2
INPUT MODE EFFECT
60 70
EON RDS MODE/FREQ
6 7
– SET MENU
When there is drive history record : 1
* Selecting "RESERVED" from the Diag menu
No.8 and using factory presetting will clear the
history.
See Table 1.
30
TUNING MODE EDIT
3
PROG > PROG <
80
PTY START PTY MODE
8
LEVEL
40
4
90
×
×