JVC MX-G500 Service Manual page 31

3. Pin function
Pin No. Symbol I/O
1 RFM I
2 RFO O
3 EQI I
4 EQO O
5 EFMI I
6 VCC P
7 FRSH I
8 FSET I
9 FLB I
10 FGD I
11 FSI I
12 TGU I
13 ISTAT O
14 MCK I
15 MDATA I
16 MLT I
17 RESET I
18 CLVI I
19 WDCK I
20 LOCK I
21 EFM O
22 ASY I
23 SPM I
24 SPO O
25 SLM I
26 SLO O
27 SLP I
28 TEM I
29 TEO O
30 FEM I
31 FEO O
32 GND P
33 TZC/ I
SSTOP
34 TEIO B
35 LPFT I
36 ATSC I
37 LD O
38 PD I
39 PDAC I
40 PDBD I
41 PDF I
42 PDE I
43 DCB I
44 MCP I
45 DCCI O
46 DCCO I
47 VREF O
48 EQC I
Function
RF summing amp. inverting input
RF summing amp. output
RFO DC eliminating input(use by MIRROR, FOK ,AGC & EQ terminal)
RF equalizer output
EFM slice input. (input impedance 47K)
Main power supply
Capcitor connection to focus search
Filter bias for focus,tracking,spindle
Capacitor connection to make focus loop rising band
Terminal to change the hign frequency gain of focus loop
Focus servo input
Connect the component to change the high frequency of tracking Loop
Internal status output
Micom clock
Data input
Data latch input
Reset input
Input the spindle control output from DSP
88.2KHz input terminal from DSP
Sled run away inhibit pin (L: sled off & tracking gain up)
EFM output for RFO slice(to DSP)
Auto asymmetry control input
Spindle amp. inverting input
Spindle amp. output
Sled servo inverting input
Sled servo output
Sled servo noninverting input
Tracking servo amp.inverting input
Tracking servo amp. output
Focus servo amp. inverting input
Focus servo amp. output pin
Main ground
Tracking zero crossing input & Check the position of pick-up wherther inside or not
Tracking error output & Tracking servo input
Tracking error integration input (to automatic control)
Anti-shock input
APC amp. output
APC amp. input
Photo diode A & C RF I/V amp. inverting input
Photo diode B & D RF I/V amp. inverting input
Photo diode F & tracking(F) I/V amp. inverting input
Photo diode E & tracking(E) I/V amp. inverting input
Capacitor connection to limit the defect detection
Capacitor connection to mirror hold
Output pin to connect the component for defect detect
Input pin to connect the component for defect detect
(VCC+GND)/2 Voltage reference output
AGC_equalize level control terminal & capacitor terminal to input in to VCA
MX-G500
1-31