
63
DV-646A
7.1.2 SELF-DIAGNOSTIC FUNCTION OF PICKUP DEFECTIVE
Character in bold : Item name
: Information display
Test Mode Screen Display
Laser diode current value
Symptom
• Indicates "No Disc" in FL display.
• Player does not playback, etc..
This unit can confirm the laser diode current value (DVD: 650nm, CD: 780nm) of pickup on the Test Mode screen.
(Press the ESC
→
TEST keys in order on the test mode remote control unit (GGF1067) to enter the test mode.)
Note :
When a DVD disc or a CD disc is played in the test mode, this function is effective.
Procedure of Self-Diagnosis
1
Enter the Test mode.
2
When diagnosing the 650nm laser diode:
Press the
→
keys in order, and turn on the laser diode (It light-up for nine seconds.).
When diagnosing the 780nm laser diode:
Press the
→
keys in order, and turn on the laser diode (It light-up for nine seconds.).
When let it turn on once again after performed
2
once,
After pressed REP.B key once
650nm: Press the
→
keys in order
780nm: Press the
→
keys in order
3
Confirm the indicated value of the laser diode current (LDI). (Refer to following figure.)
4
When indicated value is more than 100, pickup is defective.
→
Replacement is necessary
Replace the Traverse Mechanism Assy or Pickup.
TEST
1
TEST
1
TEST
4
TEST
4
It's effective in case of the following condition.
Содержание DV-646A
Страница 9: ...DV 646A 9 ...
Страница 15: ...DV 646A 15 ...
Страница 38: ...DV 646A 38 ...
Страница 44: ...A B C D 1 2 3 4 1 2 3 4 44 DV 646A Q45 Q450 Q774 Q771 Q768 Q706 Q707 Q708 IC921 VNP1839 A SIDE B C ...
Страница 46: ...A B C D 1 2 3 4 1 2 3 4 46 DV 646A D 4 4 SCRB ASSY CN702 C VNP1838 A SIDE A SCRB ASSY D ...
Страница 47: ...A B C D 1 2 3 4 1 2 3 4 47 DV 646A D VNP1838 A SIDE B SCRB ASSY D Q212 Q211 Q231 Q231 Q313 Q311 Q401 Q403 Q312 ...
Страница 65: ...65 DV 646A DVDM ASSY B SIDE B TE FE ...
Страница 101: ...101 DV 646A 8 PANEL FACILITIES AND SPECIFICATIONS 8 1 PANEL FACILITIES 8 1 1 Front Panel ...
Страница 102: ...102 DV 646A 8 1 2 Remote Control ...
Страница 103: ...103 DV 646A 8 1 3 Display Window ...