Zenith ABV341 Series, Service Manual

Page: 93 / 190

3-115
BLOCK DIAGRAMS
1. Overall Block Diagram
M
M
DISC
SPINDL
E
MO
TO
R
LO
A
D
ING
MO
T
O
R
DECK MECHANISM
DV
D:
RF
0
,A
,B,
C,
D
C
D
:R
F0
,A,B
,C
,D
,E,
F
PICK
UP
KEY In
p
u
t
B/Pb
IC5
A
1
29LV800T
A
-70
1M
8BIT
FL
A
S
H ROM
URST
A[00
:1
9]
PC
E#
PR
D
#
PW
R
#
DQ[00:15]
RFON,R
FOP
,FEO
,R
F
L
,CS
O
T
E
O
,B
D
O
,RFRP,
H
TRC,
V
2
P
8
L/
R
CVBS
R/Pr
G/
Y
Y[1:6]
Y C
L/
R
VF
+
A
C
90V~240V
50
HZ/60Hz
VF- -27V
A
5V
3V3M
12V
STBY
,TRCLO
SE
27
M
H
z
X-TA
L
PW
RC
T
L
DV33
IC505
KS24C021C
S
EEPROM
IC401
CS4391(2DA
C
)
IC401
NJ
M
4
580
OP-
A
M
P
RC901
REMOCO
N
RECEIVER
IC903
RESET I
C
LOAD+,LOAD-
F+,F-,T+,T-
SP+,SP-
IC201
MT1336E
RF
SLED
(FEEDING)
MO
T
O
R
SL+,SL-
IC202
L
A
6560
MO
TO
R
DRIVER
M
V3
3
DV33
A
V
33
/DV33
/V25
VCC/DV33/3V3
M
AC
L
K
ABC
L
K
A
L
RCK
IC60
4
MM1
623XFB
E
VIDEO BUFFE
R
M
IC_DETC
ASPDIF
C
O
A
X
O
PT
ICAL
ASPECT
VC
C
RV
CC
AVC
C
AV3
3
V2
5
LD01,LD02
, IOA, V2.
0
VCC/+8V
RVCC
LI
M
IT
TROU
T,
TR
IN
TROPEN
,TRS
O
,F
O
SO
,D
MS
O
,F
M
S
O
° ‹
SC
LK,SDEN,SDAT
A
PW
MOUT
2
AD
[0
:7
]
VC
C
VCR
VFD_SCK VFD
_
T
X
D
M_RE
Q
POWER
BOARD
V1P4
MD
I1
APC
VFD_R
X
D
S_
R
E
Q
5V2
A
+P8V
MUTE
J6
RS232
TX
D
RX
D
SC
L
IC502
M12L16161
A
512K
2Banks
16BIT
SDR
A
M
SD33
IC503
M12L16161
A
512K
2Banks
16BIT
SDR
A
M
SD33
IC506
M12L64164
A
1M
4Banks
16BIT
SDR
A
M
M
A
[0
0:
10
]
BA0 DCLK DCK
E
CS
#
RA
S
#
CA
S
#
WE
#
DQM[0:1]
DQ[16:31]
DQM[2:3]
MA11,BA1
SD
A
VRST# ASDAT[0:3] VSC
K
VSD
A
ASTB
IC501
MT1379E
DSP/MPEG
+12V
+12
V
VC
C
DV33
IC510
BUFFER IC
74
H
C
T244
VC
C
AD
IN
SD33
COMBI SCART
MTK