Dec-15 Board - Sony PCM-1630 Operation And Maintenance Manual

M HOLD
RAR MUT
RAR HLD
RAR AVE
VPCM IN A
VPCM IN B
FLO
0/E
VD
RAR CRC
A/B
RtiR
DUB RAWS
RAR 80
RAR 8
A/B SEL
fCl
L;~
BLOCK DIAGRAM
OEC-15 DEC-15
BLOCK DIAGRAM
.------------------------------------------------------------------------------------------------------------------------- MUTE S
DEC/RAR
.------------------------------------------------------------------------------ HOLD S
,---------------------------------------------------------------------------- AVE S
r----------------------------------+-+----------------------------------------------------------------------------.
MUTE
J~
HOLD
STATUS
6C,6D
r----
SEl
50
::E
-
~
M.M
..
,.
.....
......
~r;,..
7N
.....
~
HOLD
AVERAGE
~----------------------------------.
HOLD 1
L-----------------------------------
HOLD 2
L-----------------------------------
AVE 1
lr----------------------------------
AVE 2
x<l
'-~~--1---------------------1-----------------------------------------~----------------------------+---,r
________ ,_ ____________________ •
DEC MUT
4bx 1K
()
~
r---:---- .--
li~===:::::::::::::::::::::;::::::;:====t!
.--'"D_A T_A__,..,.IELAY : SEL
~
TA
VIDEO CLAMPER & COMPARATOR
_____!____.,
""""5M ....
rsM
RAM
VPLS
8bx2Kx2
RAM
7L
5K, 7K
.-------~------------------- DEC 1
,------+---------------------
DEC 2
1--rl
1C, 2C
COMP
Q1,Q3
1E, Q<
!' : :::...
JPEDESTAU
(r----r~~.~--~--~--~_l~j-r+-r---~1)
........................... ...___..__,
~'-
~ I I CLAMP I rt COMP
I
• 2E
L.fsYNC
Tift
CLAMP I
1/
COif'
I3E
3C,D9.D10
f
I
COMP
J30
AUTO THRESHOLD CONTROL
I
PB
MODE
DECODE
A+RAR
RAR·BD
A+RAR·BO+RAR·BD·RAR-A+RAW
B+RAR·8D·RAR-B+RAW
DUB RAW
6D, 7C,8C,8D,8E
8-20
DATA
SYNC
DATA
DATA
LEVEL
SYNC
LEVEL
{ CLPF
PCLP
OVBL
WOCK
SYNC
SEP
DATA
SEP
--8
9D
MTRG
I
9M
WOCK
EMP
F<;
CRC ER
DEC-15 BOARD BLOCK DIAGRAM
CH-1 CH-1 DATA CH-1
1-t----<..___,1---t BUS
r------------------
DEC DT 1
CH-2 DRIVE DATA CH-2
r---=-------=----------
DEC DT 2
DEC-A DEC-B
CH-2
' - - -
7B ~
H
7H
1----- 1
...
·•1-~
PARITY I
M M ..... .....
r--L~
..
}~
6N, 7M,Q4
CORRECTION
A
PAR S
PFS
BT 16
5L
WOCI\
--·•
BITCI\
PRT
WE EN
EM
W
-
FS S
DRIVE FS 0
FS 1
-
8B
CRC S
J
DEC/RARI
SEL
I
M.M CRC ER
7D
9E
RAR EN
DUB RAW
RAR ON
A ON
8 ON
8-21 PCM-1630