Onkyo FR-155, Руководство по обслуживанию

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FR-155
25
CN110
5. RF
4. VC
3. TE
2. IOP
1. I+3V
A
B
VC
KMS
2606
06602
A0544
3. Laser power check
[Procedure]
1. Install the laser power meter on the objective lens
2. Enter the test mode select "LDPWR CHECK"
3. Press the MULTI JOG knob.
4. Verify that the laser power meter reading
from 0.85mW to 0.91mW.
5. Range of the laser power meter is set in 10mW.
6. Press the MULTI JOG knob.
LD PWR CHECK
LD 0.9mW $ # #
LD 7.0mW $ # #
7. Verify that the the laser power meter reading is below
the specification.
[Specification]
7.0 mW 0.1mW
8. Verify that the the laser digital volt meter leading is below
the specification.
[Specification]
Optical pick-up value 10%
Pick-up unit
In this case
Iop = 54.4 mA
Iop = Digital volt meter reading(mV / 1 )
9. Press the EDIT/CLEAR /NO key.
LD PWR CHECK
4. EF balance adjustment
Oscilloscope
Specification : A = B
[Preparation]
1. Connect the oscilloscope to between TE and VC of test point CN110.
2. Insert the test disc.
[Procedure]
1. Enter the test mode select " EFBAL ADJUST" .
2. Press the MULTI JOG knob.
3. Rotate the MULTI JOG knob so that the readings of
the oscilloscope becomes the specified valure.
Traverse waveform
In this adjustment, waveform varies at intervals of
approximately 3%.
Adjust the waveform so that the specified value is
satisfied as possible.
4. Press the MULTI JOG knob.
EFBAL ADJUST
EFBAL # # MO-W
EFBAL = # # SAVE
EFBAL MO - W
EFBAL ADJUST
The adjustment value is memorized
in non-volatile memory.
Operation Display
Operation
Operation
Display