Philips SD-4.00SA CH Service Manual page 22

EN 22 5. SD-4.00SA_CH
Table 5-33 Tray opens
Name Testpoint
TRAY - F340
TRAY + F338
PM3380B
ch1
1
CH1 2 .00 V=
Figure 5-34 TRAY -
PM3380B
ch1
1
CH1 2.00 V= MTB 500us
Figure 5-35 TRAY +
5.6.6 Focus
Test need a DVD disc in the DVD player to operate properly.
To switch the Focus motor on/off, use the following commands:
Table 5-34 Focus motor switching
Ref. # Command Name
38a BeFocusOn
38b BefocusOff
Measure the driver outputs of the BA5938FM for the Focus
OFF.
Test Instructions Mono Board DVD-SD4.00SA_CH
Value (Tray opening)
2.0V 1.0V
6.0V 1.0V
MTB 500us ch1+
CL 16532163_046.eps
230102
ch1+
CL 16532163_053.eps
230102
Remark
Focus on
Focus off
Table 5-35 Focus motor switching
Name Testpoint
FOC - F134
FOC + F130
FO F220
Switch the focus ON and measure again the driver outputs
Table 5-36 Focus motor switching
Name Testpoint Value
FOC - F134 1Vpp 0.2V
FOC + F130 1Vpp 0.2V
FO F220
PM3394B
ch1
1
CH1 500mV~ MTB 100us
Figure 5-36 FOC+ (BefocusOn)
PM3394B
ch1
1
CH1 2.00 V~ MTB 500ns
Figure 5-37 FO (BefocusOff)
Value (Focus OFF)
5V 0.5V
5V 0.5V
1.5V 0.3V
Waveform
Refer to Figure 5-36
Refer to Figure 5-36
Refer to Figure 5-37/38
ch1+
CL06532065_029.eps
180500
ch1+
CL06532065_030.eps
161100