LG RH4820W, Service Manual

Page: 77 / 150

3-97
No. Pin Name Type Description
41 VCC4 - Analog power.
42 ADO OUTPUT Wobble circuit [A+D] signal output.
43 BCO OUTPUT Wobble circuit [B+C] signal output.
44 GND4 - Analog GND
45 CDAC OUTPUT DAC reference voltage output.
46 VCC5 - Digital power.
47 BCIN INPUT [B+C] signal input.
48 ADIN INPUT [A+D] signal input.
49 RCBH1A - RLPP circuit bottom hold condenser connecting port.
50 RCBH1B - RLPP circuit bottom hold condenser connecting port.
51 GND5 - Analog GND
52 SHWB INPUT Sample hold pulse input for Wobble signal.
53 SHSV INPUT Sample hold pulse input for Servo signal.
54 VCC6 - Digital power.
55 OPCTRG INPUT OPCTRG signal input.
56 SHAPCRE INPUT Sample hold pulse input for Read/Erase ALPC.
57 SHPCW INPUT Sample hold pulse input fot Write ALPC.
58 ROPC1 INPUT Sample hold pulse input 1 for WRF signal.
59 ROPC2 INPUT Sample hold pulse input 2 for WRF signal.
60 WLDON INPUT Write ALPC Center signal input.
61 RLDON INPUT Read ALPC Center signal input.
62 SGND - Sub straight GND.
63 SCFCK INPUT SCF clock input.
64 EQCK1 INPUT Fixed clock input.
65 EQCK2 INPUT Equalize automatic control clock input.
66 GND6 - Analog GND
67 RST INPTU Register reset input.
68 SCK INPUT Register setting clock input.
69 SO OUTPUT Serial data output.
70 SI INPUT Serial data input.
71 CP INPUT Address
72 VCC33 OUTPUT Power voltage [3.3V monitor].
73 CWAGC - Wobble circuit AGC response time setting condenser connecting port.
74 CWHP - Wobble circuit HPF band setting condenser connecting port.
75 WOBBLE OUTPUT Wobble signal output [Digital signal].
76 AWOBBLE OUTPUT Wobble signal output [Analog signal].
77 MONI2 OUTPUT Internal signal monitor port.
78 VCC7 - Digital power.
79 TEC OUTUPT Tracking zero cross signal output.
80 TECIN INPUT Tracking zero cross signal input.