Philips SD-4.00SA CH Service Manual page 19

PM3380B
ch1
1
CH 1 2.00 V =
Figure 5-25 BE_WCLK
5.6.2 Spindle Motor:
Before switching on the discmotor, check the following
testpoints:
Table 5-22 Spindle motor check
Name
STDBY_MOTOR
MOTO1
Switch the Discmotor ON/OFF with the following commands:
Table 5-23 Disc motor switching
Ref. # Command Name
39a BeDiscmotorOn
39b BeDiscmotorOff
Check the following signals with the discmotor switched ON
and without DVD Disc inserted.
Test Instructions Mono Board DVD-SD4.00SA_CH
MTB 200ns ch1 +
CL 16532163_029.eps
230102
Testpoint Value
F308 low
F350 1V5 0.3
Remark
Discmotor on
Discmotor off
SD-4.00SA_CH
Table 5-24 Disc motor switching
Name Testpoint
STDBY_MOTOR F308
MOTO1 I241
A3 F301
A2 F302
A1 F303
T1 F210
T2 F211
T3 F212
H1+ F306
H1- F304
H2+ F309
H2- F305
H3+ F311
H3- F313
PM3380B
ch1
CH1 1.00 V= MTB
Figure 5-26 Motor 1
PM3380B
ch1
CH1 5.00 V= MTB50.0ms
Figure 5-27 A1-A2-A3
5. EN 19
Frequency
high
4Vpp ± 0.5V Refer to
Figure 5-26
Refer to Figure 5-27
Refer to Figure 5-27
Refer to Figure 5-27
Refer to Figure 5-28
Refer to Figure 5-28
Refer to Figure 5-28
Refer to Figure 5-29
Refer to Figure 5-29
Refer to Figure 5-29
Refer to Figure 5-29
Refer to Figure 5-29
Refer to Figure 5-29
250ns ch1
CL 26532053_069.eps
210502
ch1
CL 26532053_070.eps
210502