System Control Ic Pin Description (Mb-97 Board Ic502 Lc21011B-X78) - Sony MDP-V10 Service Manual

6-4. SYSTEM CONTROL IC PIN DESCRIPTION
(MB-97 BOARD IC502 LC21011B-X78)
Pin No. Pin Name
–––––
1
–––––
2
–––––
3
–––––
4
–––––
5
–––––
6
–––––
7
CD DEFECT
8
–––––
9
–––––
10
XIN
11
XOUT
12
VSS
13
V MUTE1
14
V MUTE2
15
G BVRST
16
DLRH
17
GRH
18
GVID
19
DS GATE
20
TBC REF H
21
PBCS
22
P CODE
23
JMP TGL
24
TBC MUTE
25
CONT2
26
PC OUT1
27
PC OUT2
28
SPDL SW1
29
SPDL SW2
30
VDD
31
SP GAIN
32
SP UNLOCK
33
SP OFF
34
HP OUT
35
CDV
36
FGMD
37
JUMP
38
SV CLK
39
SET CK
40
I/O
Not used
–
– Not used
– Not used
– Not used
– Not used
– Not used
– Not used
CD defect signal output
O
– Not used
– Not used
I 4 fsc 14.3 MHz input (Clock)
O 4 fsc 14.3 MHz output (Clock)
– Ground
O When CLV scanning: V sync delete signal
When CLV scanning: REF V sync add signal
O
O Gray image output
O Gray image output
O Gray image output
When CLV scanning: Gray image input signal
I
O Phillips code gate signal output (Not used)
O CAV disc track traverse signal
Composite sync signal input
I
I Phillips code data input
O CAV disc track traverse signal
O TBC mute signal
TBC operation selection: "H" Line mode, "L" Burst mode
O
O Forcibly accelerates/decelerates the spindle servo
O Spindle servo H servo error output
Spindle gain selection control signal 1 output
O
O Spindle gain selection control signal 2 output
– +5V
I When "H" (Tracking off): PC OUT2 becomes hi-impedance
O When the spindle is not locked: Signal output set by the mechanical controller
O Output for spindle motor stop
O Spindle error signal hold pulse output (Outputs when track jump)
Spindle mode setting. CDV-V part "H" (Not used)
O
O Spindle mode setting. FG mode "H" (Not used)
I Track jump control signal (HP out gate)
Servo IC clock output 1/8 fsc
O
O Serial data transfer clock output to the servo IC
6-9
Function