Test instructions mono board DVD-ASD1
GB 14 ASD-15.
Figure 5-17
5.6 Servo
5.6.1 General start-up measurements:
Reset the Basic Engine part
Check Vref
Name Testpoint Value
Vref F188 2.5V+/-0.3
Check I2S interface
Name Testpoint Value
B_BCLK F347 6.0MHz +/-0.1
Figure 5-18
CL1F33712.0MHz +/-0.2
Figure 5-19
B_WCLKF343HIGH
StopclkF338HIGH
B_SyncF344HIGH
B_V4F348HIGH
5.6.2 Spindle Motor:
Before switching on the discmotor, check the following
testpoints:
Name Testpoint Value
Stby F357 high
Stby-out F355 LOW
Moto1 F361 3V
±
0.3
Switch the Discmotor on/off with next commands:
Check the following signals when discmotor has been switched
on::
Name Pin nr. Frequency
Stby F357 low
Stby-out F355 HIGH
Moto1 F361 3V
±
0.5V
A3 F350 see oscillogram
A2 F352 see oscillogram
A1 F353 see oscillogram
Figure 5-20
Ref. # Command Name Remark
44 BeReset Basic Engin
PM3394B
ch1
CH1 2.00 V~ MTB20.0us ch1+
1
HSYNC
CL06532065_019.eps
180500
PM3394B
ch1
CH1 2.00 V~ MTB50.0ns ch1+
1
CL06532065_020.eps
180500
Ref. # Command Name Remark
39a BeDiscmotorOn Discmotor on
39b BeDiscmotorOff Discmotor off
PM3394B
ch1
CH1 2.00 V~ MTB50.0ns ch1+
1
CL06532065_021.eps
180500
PM3394B
ch1
CH1 5.00 V~ MTB20.0ms ch1+
1
CL06532065_022.eps
180500
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