Sanyo CDP-M300, Service Manual

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IC BLOCK DIAGRAM & DESCRIPTION
IC503 BA4510F(OP AMP.)
OUT1
1
-IN1
2
+IN1
3
V
EE
4
V
CC
8
OUT2
7
-IN2
6
+IN2
5
1ch
2ch
DE
A
GND
1
2
3
5
4
Vcc
Y
DE
L
L
H
In A
L
H
X
Out Y
L
H
Z
Inputs Output
Function Table
Connection Diagram
H = HIGH Logic Level
L = LOW Logic Level
X = HIGH or LOW Logic Level
Z = HIGH Impedence Slam
(Top View)
IC706 NC7SZ125(Buffer with 3-State Output)
IC301 AN8838SB(CD HEAD AMP)
1
Sub-
truction
Sub-
truction
Band
Gap
RF
detection
BDO
detection
OFTR
detection
3T-ENVE.
A-ch
B-ch
E-ch
6 7 15 13 11 17 12 19
RF RF
8
RFIN
BDO
OFTR CEA ENV RFDET CSBRT
21
20
26
14
18
FEN
FEOUT
V
CC
GND
LDON
V
REF
23 22 16 24 25 9
10
TBAL FBAL PDOWN TEN TEOUT LPD LD
5
27
28
4 PDB
PDD
3
2 PDA
PDC
PDE
PDF
B
F
E
A
F-ch
VCBA
VCBA
IC706 SN74CBTLV1G125
(Low Voltage Single FET Bus Switch)
OE
A
GND
V
CC
B
SW
1
2
3 4
5