Table Of Contents - Akai DVLX44C1 Service Manual

Rear Projection TV Service Manual
Table 01 Contents
Scope ..
1.1 Important Safety Instructions ..
2 DVLX4xCx Description.
2.1 Product Designation ..
3 Product Architecture .......... .... .
3.1 Critical Subassemblies .. . ...... ..... .
3.2 Block Diagram ..... .. .......... ..
4 Product Test Environment.
5 Service Procedure.. . .............. .
5 1 E-Box Disassembly & Board Replacement Procedure ..
5.2 U mp Cartridge Replacement Procedure ..
5.3 Control Board and LED Board Replacement Procedure .. .
6 DVLX4xCx Diagnostic Software Downloading and Operation .. .
6.1 Downloading the Diagnostic Software into the DVLX4xCx unn ...
6.2 Running the Diagnostic Software ..
7 Ope,etional Software Downloading and Operation ...
7.1 Downloading the Operational Software Into the DVLX4xCx unit .
7.2 Reset Picture Settings .. .. ..... .... .. .
7.3 VGA Scaling and Border Alignment .. ........ ... ..
74 Video Fine Tuning adjustment..
7.5 Checking
and verifying each input on the DVLX4xCx unit..
7.6 Running the remote control test. .. .... ....... .. ..
7.7 Running the front panel keypad test.. ........ .. ..
7.8 Reverting to user mode and finishing the test.
8 Load and Run Operational Software ..
9 Run Maintenance Menu BIT ...
10 Run Calibration Procedure ..
Figure 1: DVLX4xCx Product View ..
Figure 2' DVLX4xCx Critical Subassemblies ..
Figure 14' Maintenance Menu.
Figure 3: DVLX4xCx Block Diagram .......... .......... .... .
Figure 4: Test Environment..
Figure 5: VGA Test Pattern ..
Figure 6: Service Procedure FlOWChart .
Figure 7: Service Procedure Flowchart (Continued) .
Figure 8: Service Procedure Flowchart (Continued)
Figure
9:
Maintenance Menu .
Figure 10: Ma intenance Menu and VGA Submenu ..
Figure 11: Maintenance Menu and Video Fine Tuning Submenu.
Figure 12: Maintenance Menu and Input Submenu
Figure 13: Operational On Screen Display (OSD) Menu ..
Table 1: DVLX4xCx Products ... ......... ........ ..
Table 2: Service Checklist . ........ .... .
Table 3: Service Procedure Number (SPN) Description .
Table 4: Cable Routing Description .. ..
service manual i OVLX Confidential
10 OeC"em-bel 2004 ­
.... 3
..... . 3
.... 3
.. . 3
. ............ 4
.. .... 4
. ...... ...... 6
. ....... ...... ..... ...... 7
.. ...... 10
. ..... 22
.... 25
.. 26
. .......... ..... 26
... 26
. ... 27
.27
... 27
.. 28
.. 28
. ...... 29
.. ... 30
....... 30
..... ... .. ... ... 31
.. 31
.31
. ...... ........ 32
........ 32
. .......... 4
.6
. ... 7
.. 8
. .. .... .... 9
.. .... 12
..... 13
......... 14
. ....... 28
. .... . 29
..30
. . .. 30
. ............. 32
..... .. ... 32
. 4
. 10
. .. ........... .. ..... ........ ... . 15
........... .. 22
· 2 .