JVC UX-A7DVD Service Manual page 43

• Pin function
Pin No. Symbol
1 LPC1 Laser pin input (DVD head)
2 LPCO1 Laser drive output (DVD head)
3 LPC2 Laser in input (CD head)
4 LPCO2 Laser drive output (CD head)
5 VFOS- VFOSHORT control
HORT
6 TBAL Tracking balance control
7 FBAL Focus balance control
8 POFLT Track detection threshold level
9 DTRD Data slice data read signal input (for RAM)
10 IDGT Data slice address gate signal input
(for RAM)
11 STANBY Standby mode control
12 SEN SEN (serial data input)
13 SCK SCK(serial data input)
14 STDI STDI(serial data I/O)
15 RSCL Reference current setting
16 JLINE J-line vurrent setting
17 TEN Tracking error amplifier inverted input
18 TEOUT Tracking error signal output
19 AGCBAL Offset adjustment for DRC-1
20 ASOUT Full addition signal output
21 FEN Focus error amplifier inverted input
22 FEOUT Focus error signal output
23 AGCOFST Offeset adjustment for DRC-2
24 MON Monitor
25 AGCLVL Output amplitude adjustment for DRC
26 GND2 Ground 2
27 VREF2 VREF2 voltage output
28 VCC2 Power supply 2 (5V)
29 VHALF VHALF voltage output
30 DFLTON Filter amplifier inverted output
31 DFLTOP Filter amplifier positive output
32 DCFLT Filter output capacitance connection
33 GND3 Groud 3
34 RFDIFO Raidal differntial output
35 RFOUT RF full-addition amplifier output
36 VCC3 Power supply 3 (3.3V)
37 RFC Filter for RF-group delay correction ampli-
fier
38 DCRF DC-cut filter for RF full-addition amplifier
39 OFTR OFTR output
40 BDO BDO output
41 RFENV RF envelope output
42 BOTTOM Bottom envelope detection filter
43 PEAK Peak envelope detection filter
Function
Pin No. Symbol
44 AGCG AGC amplifier again control
45 AGCO AGC amplifier level control
46 TESTSG TEST signal input
47 REFINP RF signal positive input
48 RFINN RE signal inverterd input
49 VIN5 Internal four-partition (CD) RF input 1
50 VIN6 Internal four-partition (CD) RF input 2
51 VIN7 Internal four-partition (CD) RF input 3
52 VIN8 Internal four-partition (CD) RF input 4
53 VIN9 Internal four-partition (DVD) RF input 2
54 VIN10 Internal four-partition (DVD) RF input 1
55 VCC1 Power supply 1 (5V)
56 VREF1 VREF1 voltage output
57 VIN1 Internal four-partition (DVD) RF input 1
58 VIN2 Internal four-partition (DVD) RF input 2
59 VIN3 Internal four-partition (DVD) RF input 3
60 VIN4 Internal four-partition (DVD) RF input 4
61 GND1 Groud 1
62 VIN11 3-deam sub (CD) input 2
63 VIN12 3-deam sub (CD) input 1
64 HDTYPE HD type selection
UX-A7DVD
Function
(No.22013)1-43