LG TCH-800, Руководство по обслуживанию

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PIN DESCRIPTION
Pin No.
36 MDATA Micom data input pin
37 MLT Micom data latch input pin
38 RESET Reset input pin
39 MIRROR The mirror output for test
40 FOK The output pin of focus OK comparator
41 SSTOP The pin for detection whether pick_up position is innermost or ton
42 SL+ The noninverting input pin of sled servo amplifier
43 SLO The output pin of sled servo amplifier
44 SL- The inverting input pin of sled servo amplifier
45 SPDL- The noninverting input pin of spindle servo amplifier
46 SPDLO The output pin of spindle servo amplifier
47 FE- The inverting input pin of focus servo amplifier
48 FEO The output pin of focus servo amplifier
49 TE- The inverting input pin of tracking servo amplifier
50 TEO The output pin of tracking servo amplifier
51 ATSC The input pin for Anti-shook detection
52 TZC The comparator input pin for tracking zero crossing detection
53 TE2 Tracking servo input pin
54 TE1 Tracking error amplifier output pin
55 LPFT The input pin of tracking error low pass filtering signal
56 DVDD The power supply pin for logic circuit
57 TDFCT The capacitor connection pin for tracking defect compensation
58 FE2 Focus servo input in
59 FE1 Focus error amplifier output pin
60 FDFCT The capacitor connection pin for focus defect compensation
61 TGU The capacitor connection pin for high frequency tracking gain switch
62 TG2 The pin for high frequency gain change of tracking servo loop with internal TG2 switch
63 FEBIAS Focus error bias voltage control pin
64 DVEE The DVEE pin for logic circuit
65 PD1 The negative input pin of RF I/V amplifier1(A+C signal)
66 PD2 The negative input pin of RF I/V amplifier2(B+D signal)
67 F The negative input pin of F I/V amplifier(F signal)
68 E The negative input pin of E I/V amplifier(E signal)
69 PD The input pin for APC
70 LD The output pin for APC
Symbol Description