42
YMC-700/YMC-500
YMC-70
0/YMC-50
0
–>
M: A/D DATA
1: KEY1 : 255 KEY2: 255
HL
VOLUME: 25
AUDIO:
–
–
VIDEO:
–
–
M: A/D DATA
This menu is used to display the A/D conversion value of the microprocessor which detects panel keys of this unit
and protection functions by using the sub-menu.
When KEY1/KEY2 menu is selected, keys become nonoperable due to detection of the values of all keys.
However, it is possible to return to preceding mode, in which keys become operable again, by turning the “VOLUME”
knob of this unit.
1: KEY1: : KEY2:
(Panel key of this unit)
When the A/D conversion value of the panel
key becomes out of the specified range
(standard value ±4), normal operation will
not be available.
In this case, check the constant of voltage
dividing resistor, solder condition, etc. Refer
to table.
(Reference voltage: 3.3V=255)
Power supply voltage protection detection.
Voltage detects:
+ 1 2 A , + 6 V, + 5 V, + 5 A ,
-5A, +3.3V, +2.5V
Port detect:
Pin No. 5 of IC381
Normal value:
133 to 190
(Reference voltage:
3.3 V=255)
4: DOCK_ID:
DOCK type detection
(Reference voltage: 3.3V=255)
Port detect:
Pin No. 15 of IC382
3: DC_PRT:
(PRD)
Power amplifier DC (DC voltage) output is
detected.
Voltage detects:
SP_FL±, SP_FR±, SP_C±,
SP_SL±, SP_SR±
Port detect:
Pin No. 1 of IC382
Normal value:
139 to 216
(Reference voltage:
3.3 V=255)
Displayed
KEY1 (7 pin of IC381)
0 – 4
〈
(LEFT)
40 – 52
︿
(UP)
98 – 110
〉
(RIGHT)
148 – 160
﹀
(DOWN)
ENTER
Key off
CONTROL
BACK
Key off
DOCK detection for AD port
Pull-up resistance 10 k-ohms
DOCK type
(15 pin of C382)
A/D value
(3.3V=255)
Bluetooth
5 – 25
iPod
120 – 140
No connected
250 – 255
Example
Volume knob detection
Port detect:
VOL_RA: Pin No. 64 of IC351
VOL_RB: Pin No. 67 of IC351
H: High, L: Low
Example
4: DOCK_ID: 252
Example
3: DC_PRT : 175
Example
2: PRV1 : 148
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