Advertisement
5.When [RET RMVE] is displayed in the LCD, disconnect the plug from RETURN.
6. RET2 , RETURN SW On (internally RETURN is selected)
SO[1]R (0.5001(=1/2*16)) ---> DSP SI[1]R (0.338713 +-30%)
(OPEN)
SEND--->RETURN
|
|
IN ---+--------------->| Ain R | | AoutR |-------> PHONE R
+-|----| DoutR | | Din R |<-+ |
| |
| |
| |
| |
| +-->| SI[1]L SO[1]L |-----|-+
+---->| SI[1]R SO[1]R |-----+
Internal Check 6. TUNER
The DSP outputs the sine wave signal and this item inspects the returned signal level to the INPUT
by CPU. The test cable1 is needed for the connection of PHONE-->INPUT.
1. 2217.461047Hz
2. 25.9565436Hz
Operation Check
In this Check, use the CUR_UP/CUR_DOWN to select the item, use the CUR_LEFT to return to the initial
display of the item (without during the switch Check).
When an error occurred you can start from the NG step using the WRITE switch.
Item
1. Pedal trimmer adjusting
2. PEDAL Lower Switch
3. Switch, LED
4. Binary Encoder
5. Volume with 11 clicks
6. Volume without click
7. Pedal calibration
8. LCD
9. Vacuum tube output adjusting
symmetricness
Check of the
10. Load Preset
After the last item's check finished, TONELAB LE goes to normal mode. When "Er" is displayed
in the LED, some error has occurred.
A/D
D/A
AK5381VTPA AK4384VTP
+-------+ +-------+
| Ain L | | AoutL |- - - -> PHONE L
|
| |
|
+----| DoutL | | Din L |<---+
+-------+ +-------+ | |
DSP(FXD03)
+---------------+
+---------------+
Initial Display LED
All LEDs light, BANK LED meter display
BANK LED "PS"
All LEDs light, BANK LED rounding
BANK LED "E1"
BANK LED "C1"
BANK LED "A1"
BANK LED "P "
BANK LED "Lc"
BANK LED meter
BANK LED 'P', all CH LEDs blinking
| |
| |
| |
Initial Display LCD
PDL_CLB
PDL_SW
SW & LED
BIN ENC
C11 KNOB
VOL KNOB
PEDAL
All light
TUBE TRM
RELOAD ?
Advertisement
