JVC MX-G50 Service Manual page 36

MX-G50/MX-G56
KB9226 (IC101) :
1. Pin layout
37
38
39
40
41
42
43
44
45
46
47
48
2. BLOCK DIAGRAM
3
RF AGC & EQ
EQO 4
EFMI 5
Focus OK Detect
Defect Detect Mirror
DCCI 45
DCC0 46
Focus Servo Loop
MCP 44 - Gain & Phase
Compensation
- Focus Search
DCB 43
- Offset Adjust
- FZC Gen.
VCC/
6
VDD
FRSH 7
FSET 8
FLB 9
FGD
10
FSI 11
TGU 12
Micom Data Interface Logic Decoder
13
1-36
RF AMP & SERVO SIGNAL PROCESSOR
36 35 34 33 32 31 30 29 28
LD
PD
PDAC
PDBD
PDF
PDE
S1L9226X
DCB
MCP
DCCI
DCCO
VREF
EQC
1 2 3 4 5 6 7 8
2 1 48
Center
Voltage
Control
APC. Laser
Gen
Control &
Tracking Servo Loop
- Gain & Phase
Compensation
- Track Jump
- Offset Adjust
- TZC Gen.
Hardware Logic
- Auto-Sequencer
- Fast Search
- Febias, Focus Servo,
Tracking Offset ADJ.
- Tracking Balance & Gain
Adjust
- Interruption Detect
- EFM Muting System
14 15 16 17 19
27 26 25
SPO 24
SPM 23
ASY 22
EFM 21
LOCK 20
19
WDCK
CLVI 18
RESET 17
MLT 16
15
MDATA
MCK 14
ISTAT 13
9 10 11 12
47 42 41 40
Tracking Error RF & Focus
(RW) Error (CD-RW)
I/V AMP I/V AMP
LPC
Sled Servo &
EFM
Comparator
18 20 22 21
39
38 PD
37 LD
35 LPFT
34 TEIO
TZC&
33
SSTOP
36 ATSC
29 TEO
28 TEM
27 SLP
Kick Gen
26 SLO
25 SLM
29 FEO
30 FEM
23 SPDLO
Spindle
Servo LPF
24 SPDLM