Daewoo AKD-80C, Руководство по обслуживанию

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3. TERMINAL VOLTAGE & DESCRIPTION
DAEWOO
- 16 -
PIN
No
Pickup photodiode connection pin. Added to FIN1 pin to generate the RF signal, subtracted
from FIN1 pin to generate the FE signal.
1 FIN2
Pickup photodiode connection pin. 2 FIN1
SYMBOL CONTENTS
Pickup photodiode connection pin. Subtracted from F pin to generate the TE signal. 3 E
Pickup photodiode connection pin. 4 F
TE signal DC component input pin. 5 TB
Pin which connects the TE signal gain setting resistor between this pin and TE pin. 6 TE
-
TE signal output pin. 7 TE
TES(Track Error Sense) comparator input pin. The TE signal is input through a band pass filter. 8 TESI
Shock detection input pin. 9 SCI
Tracking gain time constant setting pin. 10 TH
TA amplifier output pin. 11 TA
Pin for configuring the tracking phase compensation constant between the TD and VR pins. 12 TD
-
Tracking phase compensation setting pin. 13 TD
Tracking jump signal (kick pulse) amplitude setting pin. 14 JP
Tracking control signal output pin. 15 TO
Focusing control signal output pin. 16 FD
Pin for configuring the focusing phase compensation constant between the FD and FA pin.
Pin for configuring the focusing phase compensation constant between the FD
-
and FA
-
pin.
Pin for configuring the focusing phase compensation constant between the FA and FE pin.
17 FD
-
18 FA
19 FA
-
FE signal output pin. 20 FE
Pin which connects the FE signal gain setting resistor between this pin and FE pin. 21 FE
-
Analog signal GND. 22 AGND
CV + and CV
-
pins input signal single-end output. 23 SP
Spindle amplifier input. 24 SPI
12-cm spindle mode gain setting resistor connection pin. 25 SPG
Spindle phase compensation constant connection pin, along with the SPD pin. 26 SP
Spindle control signal output pin. 27 SPD
Sled phase compensation constant connection pin. 28 SLEQ
Sled control signal output pin. 29 SLD
Input pin for sled movement signal from microprocessor. 30 SL
-
Input pin for sled movement signal from microprocessor. SL + 31
Input pin for tracking jump signal from DSP. 32 JP
Input pin for tracking jump signal from DSP. JP + 33
Input pin for tracking gain control signal from DSP. Gain is low when TGL is high.
Input pin for tracking off control signal from DSP. Tracking servo is off when TOFF is high.
34 TGL
35 TOFF
Output pin for TES signal to DSP. 36 TES
The High Frequency Level is used to determine whether the main beam is positioned over a
bit or over the mirrored surface.
37 HFL
Sled servo off control input pin. 38 SLOF
Input pin for CLV error signal from DSP.
Input pin for CLV error signal from DSP.
39
CV
-
40
CV +