Yamaha HTR-5450 Service Manual page 22

RX-V520/RX-V520RDS/HTR-5450/HTR-5450RDS
11. AD DATA CHECK
This menu is used to display the A/D conversion value of the main CPU which detects panel keys of the main unit and
protection functions in % using the sub-menu. (Reference voltage 5V as 100%) During signal processing, the condition
before execution is maintained.
When in 0/1/2 page, it is not possible to operate the keys of the main unit because the values of all keys are detected. During
signal processing, the condition before execution of this menu is maintained.
[Table 1]
Display K0
00 SEEK MODE
27 SEEK START
3F EON
5A RDS MODE
73 –
8C –
A7 –
FF KEY OFF
21
DC/PS (Detection of the protection function) [REMOTE CONTROL CODE: 7A-0B
(CD SKIP-)]
DC: DC detect protection value (Normal value: 3 to 35)
PS: Power voltage protection value (Normal value: 120 to 170)
* If DC or PS is out of the normal value range, the protection function activates
to turn off the power relay.
IMP/PL (Detection of impedance/Power limit) [Remote control code: –]
KY2: Detection of impedance switch
PL: The value of the power limit
0/1/2 (Panel key of main unit) [Remote control code: –]
A/D of the key fails to function properly when the standard value is deviated by
±4%. In this case, check the constant of partial pressure resistor, solder
condition, etc. Refer to table 1.
K1 K2
MEMORY § PROGRAM
PROGRAM ∞
TUNING MODE
FM/AM EFFECT
EDIT INPUT MODE
A/B/C/D/E § INPUT
PRESET/TUNING ∞ INPUT ∞
§ PRESET/TUNING 6CH INPUT
KEY OFF KEY OFF