Test Instructions Mono Board SD5.31SLSD-5.31SL5.EN 17
Table 5-15 Disc motor switching
PM3380B
Signalch1
NameTestpointFrequency
SMOTOR Pin22/IC7101 Output voltage control
SSPDON Pin23/IC7101 Power save
Motor ON - high
Motor OFF - low
T
VHPin15/IC7101 HALL Bias
Motor ON - LOW
Motor OFF - HIGH
SFGINPin 24/IC7101 Tacho signal output
DA1F113Output
1
DA2F114OutputSTOP
DA3F115OutputCH1 2.00V= MTB 5.00mus ch1+
CL 36532043_058.eps
H1+F112H1+ HALL input (positive signal)030603
H1-F111H1- HALL input (negative signal)
Figure 5-26 DA1-DA2-DA3
H2+F110H2+ HALL input (negative signal)
H2-F109H2- HALL input (negative signal)
H3+F108H3+ HALL input (negative signal)PM3380B
H3-F107H3- HALL input (negative signal)
ch1
PM3380B
ch1
1
CH1 500mV= MTB 5.00ms ch1+
CL 36532043_064.eps
030603
Figure 5-27 HALL input signal
CH1 1.00 V= MTB2.00 s- 3.94dv ch1+
CL 36532043_048.epsWhen measurement is completed, switch the discmotor OFF
030603
before executing next command
Figure 5-24 SMotor (Random during jump track)
5.6.3 Tracking check
PM3380BThe tracking control circuit is checked using the following
commands:
ch1
Table 5-16 Tracking
Ref. # Command NameRemark
40aBeRadialOnRadial control on
40bBeRadialOffRadial control off
Visual check on the radial ,when Radial control ON, if the
radial movement is visible.
Once the check is completed,switch the Radial control OFF
before executing next command
CL 36532043_049.epsTo check the waveform of TRACK- and TRACK+,
050603
connect a 10W / 0.25W resistor between TRACK- and
TRACK+ to serve as dummy load without connecting the
Figure 5-25 SFGIN
loader. |
ACEC
