Service manual

CD-SW250DVD
2 – 5
1. Press the DISC2 button on the main unit from the TEST Mode
initial condition to enter DVD TEST.
(TEST MODE initial screen)
Step Execute Mode
F0000000 00000000
The screen display as shown on the left.
DYNAMIC TEST
1:LASER TEST
2:STEP TEST
3:PLAY TEST
4:PLAY TEST NO TRAY
Press the (3) key.
Open the tray manually.
Put the disc on the tray and close it.
STEP TEST
TRAY OPEN
Press the (2) key.
Media judgement
"0 0 0 0": 4-digit alphanumeric
STEP TEST
MEDIA JUDGE
DVD
0000SGC10000SGC0
0000FEOFFSET10000FEOFFSET0
0000TEOFFSET10000TEOFFSET0
FGAIN0
Press the "PLAY" key.
Press the "STOP" key to return to the DYNAMIC TEST screen.
Turn the power off to exit the TEST MODE.
Press the "STOP" key to return to the DYNAMIC TEST screen.
Turn the power off to exit the TEST MODE.
FGAIN1
TGAIN0 TGAIN1
FBAL0 FBAL1
TBAL0 TBAL1
3TBST0 3TBST1
Media judgement
"0 0 0 0": 4-digit alphanumeric
STEP TEST
MEDIA JUDGE
CD
SGC10000SGC0
FEOFFSET10000FEOFFSET0
TEOFFSET10000TEOFFSET0
FGAIN0
Press the "PLAY" key.
FGAIN1
TGAIN0 TGAIN1
FBAL0 FBAL1
TBAL0 TBAL1
3TBST0 3TBST1
Focus On
"0 0 0 0": 4-digit alphanumeric
STEP TEST
FOCUS ON
DVD
0000SGC10000SGC0
0000FEOFFSET10000FEOFFSET0
0000TEOFFSET10000TEOFFSET0
FGAIN0
Press the "PLAY" key.
FGAIN1
TGAIN0 TGAIN1
FBAL0 FBAL1
TBAL0 TBAL1
3TBST0 3TBST1
Focus On
"0 0 0 0": 4-digit alphanumeric
STEP TEST
FOCUS ON
CD
SGC10000SGC0
FEOFFSET10000FEOFFSET0
TEOFFSET10000TEOFFSET0
FGAIN0
Press the "PLAY" key.
FGAIN1
TGAIN0 TGAIN1
FBAL0 FBAL1
TBAL0 TBAL1
3TBST0 3TBST1
Tracking On
"0 0 0 0": 4-digit alphanumeric
STEP TEST
TRACKING ON
DVD
0000SGC10000
00000000
SGC0
0000FEOFFSET10000FEOFFSET0
0000TEOFFSET10000TEOFFSET0
FGAIN0
Press the "PLAY" key.
FGAIN1
TGAIN0 TGAIN1
FBAL0 FBAL1
TBAL0 TBAL1
3TBST0
3TBST1
Tracking On
"0 0 0 0": 4-digit alphanumeric
STEP TEST
TRACKING ON
CD
SGC10000
0000
SGC0
FEOFFSET10000FEOFFSET0
TEOFFSET10000TEOFFSET0
FGAIN0
Press the "PLAY" key.
FGAIN1
TGAIN0 TGAIN1
FBAL0 FBAL1
TBAL0 TBAL1
3TBST0 3TBST1
Auto gain control adjustment
"0 0 0 0": 4-digit alphanumeric
STEP TEST
AGC STUDY
DVD
0000SGC10000
00000000
00000000
00000000
SGC0
0000FEOFFSET10000FEOFFSET0
0000TEOFFSET10000TEOFFSET0
FGAIN0
Press the "PLAY" key.
FGAIN1
TGAIN0 TGAIN1
FBAL0
FBAL1
TBAL0 TBAL1
3TBST0
3TBST1
Auto gain control adjustment
"0 0 0 0": 4-digit alphanumeric
STEP TEST
AGC STUDY
CD
SGC10000
0000
0000
0000
SGC0
FEOFFSET10000FEOFFSET0
TEOFFSET10000TEOFFSET0
FGAIN0
Press the "PLAY" key.
FGAIN1
TGAIN0 TGAIN1
FBAL0 FBAL1
TBAL0 TBAL1
3TBST0 3TBST1
Focus balance adjustment
"0 0 0 0": 4-digit alphanumeric
STEP TEST
3TBST FBAL STUDY
DVD
0000SGC10000
00000000
00000000
00000000
00000000
00000000
SGC0
0000FEOFFSET10000FEOFFSET0
0000TEOFFSET10000TEOFFSET0
FGAIN0
Press the "PLAY" key.
FGAIN1
TGAIN0 TGAIN1
FBAL0 FBAL1
TBAL0 TBAL1
3TBST0 3TBST1
Focus balance adjustment
"0 0 0 0": 4-digit alphanumeric
STEP TEST
3TBST FBAL STUDY
CD
SGC10000
0000
0000
0000
0000
0000
SGC0
FEOFFSET10000FEOFFSET0
TEOFFSET10000TEOFFSET0
FGAIN0
Press the "PLAY" key.
FGAIN1
TGAIN0 TGAIN1
FBAL0 FBAL1
TBAL0 TBAL1
3TBST0 3TBST1
Play test
8-digit numeric of DVD ID grows
"0 0 0 0": 4-digit alphanumeric
Play test
6-digit numeric of TIME grows
"0 0 0 0": 4-digit alphanumeric
PLAY TEST
DVD ID 8-digit numeric
0000SGC10000
00000000
00000000
00000000
00000000
00000000
SGC0
0000FEOFFSET10000FEOFFSET0
0000TEOFFSET10000TEOFFSET0
FGAIN0
Press the "PLAY" key.
FGAIN1
TGAIN0 TGAIN1
FBAL0 FBAL1
TBAL0 TBAL1
3TBST0 3TBST1
PLAY TEST
CD NO2-digit numeric TIME6-digit numeric
SGC10000
0000
0000
0000
0000
0000
SGC0
FEOFFSET10000FEOFFSET0
TEOFFSET10000TEOFFSET0
FGAIN0
Press the "PLAY" key.
FGAIN1
TGAIN0 TGAIN1
FBAL0 FBAL1
TBAL0 TBAL1
3TBST0 3TBST1