Philips SD-5.31SL, Руководство по обслуживанию

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Test Instructions Mono Board SD5.31SL
EN 18 SD-5.31SL 5.
Table 5-17 Trackingl
Figure 5-28 TRACK ON Command
5.6.4 Sledge check
The Sledge control circuit is checked using the following
commands to move the sledge:
Table 5-18 Sledge check commands
Visual check on the sledge,when Sledge control ON, if the
sledge movement is visible.
Once the check is completed,switch the Sledge control OFF
before executing next command
To check the waveform of SLEDGE- and ,
connect a 10W / 0.25W resistor between SLEDGE- and
to serve as dummy load without connecting the
loader.
Figure 5-29 SLED Inwards comand
Figure 5-30 SLED Outwards command
5.6.5 Tray Check:
The tray control circuit is checked using the following
command:
Table 5-19 Tray command
Measure the DC voltages and waveforms when executing
the tray closed command.
Table 5-20 Tray in
Figure 5-31 Tray in command
Measure the DC voltages and waveforms when executing the
tray opening command.
Signal
Name
Testpoint Description
Track - F003 Negative drive to tracking coil
Track + F004 Positive drive to tracking coil
Ref. # Command Name Remark
41a BeSledgeIn Sledge inwards
41b BeSledgeOut Sledge outwards
1
2
T
ch1
ch2
CH1 2.00V= MTB 1.00s 4.18dv ch1+
CH1 2.00V=
PM3380B
CL 36532043_080.eps
030603
1
T
ch1
ch2
CH2 2.00V= MTB 500ms 5.82dv ch1+
CH1 2.00V=
PM3380B
CL 36532043_077.eps
030603
Ref. # Command Name Remark
43a BeTrayIn Tray in
43b BeTrayOut Tray out
Signal Name Testpoint Value (Tray closed)
LOAD + F116 2V5 +/- 0V2
LOAD - F117 2V5 +/- 0V2
INSW F119 0V +/- 0V2
OUTSW F121 3V +/- 0V2
1
T
ch1
ch2
CH2 2.00V= MTB 500ms 5.82dv ch1+
CH1 2.00V=
PM3380B
CL 36532043_078.eps
030603
1
2
T
ch1
ch2
CH1 2.00V= MTB 500ms 2.24dv ch1+
CH1 2.00V=
PM3380B
CL 36532043_081.eps
030603