Daewoo DSL-19M1TC, Service Manual

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25
RF Data PLL Interface ( 9 )
Pin Main Alt. Type Description
235 JITFO Analog output The output terminal of RF jitter meter.
236 JITFN Analog Input The input terminal of RF jitter meter.
237 PLLVSS Ground Ground pin for data PLL and related analog circuitry.
238 IDACEXLP Analog output Data PLL DAC Low-pass filter
239 PLLVDD3 Power Power pin for data PLL and related analog circuitry.
240 LPFON Analog Output The negative output of loop filter amplifier
241 LPFIP Analog Input The positive input terminal of loop filter amplifier.
242 LPFIN Analog Input The negative input terminal of loop filter amplifier.
243 LPFOP Analog Output The positive output of loop filter amplifier
Motor and Actuator Driver Interface ( 10 )
34 OP_OUT Analog output Op amp output.
35 OP_INN Analog input Op amp negative input
36 OP_INP Analog input Op amp positive input
37 DMO Analog Output Disk motor control output. PWM output.
38 FMO Analog Output Feed motor control. PWM output.
39
TROPENP
W M
Analog Output Tray PWM output / Tray open output.
40
PWMOUT
1
V_ADIN9 Analog Output
1)
2) 1st General PWM output, or
Version AD input 9
41 TRO Analog Output
Tracking servo output. PDM output of tracking servo
compensator.
42 FOO Analog Output
Focus servo output. PDM output of focus servo
compensator
50
FG
(Diogital
pin)
V_ADIN8
LVTTL 3.3V Input,
Schmitt Input, pull
up , with analog
input path for
V_ADIN8
1)
2) Motor Hall sensor input, or
Version AD input 8
General Power/Ground ( 18 )
55,93,
142,160,
174, 213
DVDD18 Power 1.8V power pin for internal digital circuitry
81,178 DVSS Ground 1.8V Ground pin for internal digital circuitry
65,96,11
8,
131,145,
156,
170, 208
DVDD3 Power 3.3V power pin for internal digital circuitry
90, 148 DVSS Ground 3.3V Ground pin for internal digital circuitry