Sony HCD-EC68P - Page 42

HCD-EC68P/EC78P
HCD-EC68P/EC78P
4242
• IC Block Diagrams
– CD Board –
IC201 TK63115SCL-G@GT
IC401 BA5826SFP-E2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
24
23
22
21
20
19
18
17
16
15
25
LEVEL
SHIFT
LEVEL
SHIFT
THERMAL
SHUT-DOWN
REGULATOR
BIAS TRAP
LEVEL
SHIFT
MUTE
LEVEL
SHIFT
D.BUFF
D.BUFF
D.BUFF
GND
IN4
IN4'
BIAS
VCC
VCC
IN3'
IN3
VO3(+)
VO3(–)
VO4(–)
VO4(+)
RESETt
OPIN
VO1(–)
REGB
VO1(+)
IN1
RESET
REGOUT
MUTE
GND
IN2'
IN2
VO2(+)
VO2(–)
GND
OPOUT
D.BUFF
D.BUFF
D.BUFF
D.BUFF
D.BUFF
REGULATOR
VCC
VCC
THERMAL &
OVER CURRENT
PROTECTION
VOLTAGE
REFERENCE
ON/OFF
CONTROL
VIN
1
GND
2
VCONT
3NC4
VOUT
5
+
–
– MAIN Board –
IC602 BD3499FV-E2
1A1
18 BCB1
17 BCA1
16 BCA2
20 SB2
19 OUT2
22 SB1
21 SR
24 VCC
23 OUT1
26
SDA
25
SCL
28 FIL
27 GND
15 BCB2
2A2
3B1
5C1
6C2
4
B2
11
VOL1
12
VOL2
13TC2
14TC1
7D1
8D2
9SEL2
10SEL1
INPUT
SELECTOR
TREBLE/
BASS
INVERTER
VOLUME
INPUT
GAIN
SURROUND
PC BUS
LOGIC
IC701 BD9701CP-V5
VCC
1
OUT
2
GND
3
INV
4
STBY
5
REGULATOR
STANDBY
VOLTAGE
REFERENCE
IC801 LV23003VA
1
AM RF-IN
3
FM-MIX
2
REG
6
VCC1
4
GND1
AM
RF
AM
MIX
AM
DET
AM
IF
FM
DET
FM
IF
SD
FF
VCO
FF
FF
ST
TRIG
STSW
FM
MIX
FM
OSC
AM
OSC
OSC
BUFFER
FM
S-METER
DECODER
PHASE
COMPARATOR
MUTE
PROGRAMMABLE
DIVIDER
REFERENCE
DIVIDER
UNLOCK
DETECTOR
SWALLOW
COUNTER
POWER ON
RESET
DATA SHIFT
REGISTER
LATCH
PHASE
DETECTOR
CHARGE
PUMP
UNIVERSAL
COUNTER
5
AM-MIX
7
AMIF-IN
8
FMIF-IN
9
P-DET
10
P-COMP
11
FM-DET
12
L-OUT
13
R-OUT
14
VSS
FM
RF
36
FM RF-IN
35
GND2
34
FMRF-OUT
33
VCC2
30
BO2
29
BO1
32
FM-OSC
31
AM-OSC
28
LP-OUT
27
LP-IN
23
FMDET-OUT
15
CE
16
DI
17
CL
18
DO
22
MPX-IN
19
XIN
20
XOUT
21
VDD
26
PD
25
AGC
24
AMDET-OUT
LOW-PASS
FILTER
AGC
IF
BUFFER
PIROT
DET
CCB
I/F
1 2 3 4 5 6 7 8 9
CONTROL LOGIC
TSD
VREF
OUT2 OUT1
RNF
VM
VCC
FIN
GND
RIN
– PANEL Board –
IC303 BA6956AN