Sony HCD-EC69 Service Manual page 38

HCD-EC69/EC79/EC99
• IC Block Diagrams
– CD Board –
IC201 TK63115SCL-G@GT
VIN 1
THERMAL &
OVER CURRENT
PROTECTION
–
VOLTAGE
GND 2
REFERENCE +
5 VOUT
ON/OFF
VCONT 3 4 NC
CONTROL
– MAIN Board –
IC602 BD3499FV-E2
A1 1
A2 2
B1 3
B2 4 INPUT INPUT
GAIN
C1 5 SELECTOR
C2 6
D1 7
PC BUS
D2 8
LOGIC
SEL2 9
INVERTER
SEL1 10
VOL1 11
VOLUME
VOL2 12
SURROUND
TC2 13
TC1 14
TREBLE/
BASS
HCD-EC69/EC79/EC99
IC401 BA5826SFP-E2
VO1(–) 1
D.BUFF
2
VO1(+)
D.BUFF LEVEL
SHIFT
3
IN1
LEVEL
SHIFT
RESET 4
THERMAL
SHUT-DOWN
REGULATOR
BIAS TRAP
REGB 5
6
REGOUT
MUTE 7 MUTE
GND 8
IN2' 9
IN2 10
LEVEL
LEVEL
SHIFT
SHIFT
D.BUFF
VO2(+) 11
D.BUFF
VO2(–)
12
GND 13
OPOUT 14
IC701 NJM2368V (TE2)
8 7 6
28 FIL
VOLTAGE
27 GND REFERENCE
30 μA
26 SDA
OSC
25 SCL
UNDERVOLTAGE
LOCKOUT
24 VCC
PWM
23 OUT1
ERROR
+
−
AMP
+
+
−
+
22 SB1
21 SR
20 SB2
1 2
19 OUT2
18 BCB1
17 BCA1
16 BCA2
15 BCB2
IC801 LV23003VA
AM RF-IN 1
28 GND
REG 2
27 VO4(–)
FM-MIX 3
D.BUFF
GND1 4
26 VO4(+)
5
AM-MIX
D.BUFF
VCC1 6
25 IN4
24 IN4'
AMIF-IN 7
FMIF-IN 8
23 BIAS
VCC 22 VCC
BUFFER
VCC 21 VCC
P-DET 9
20
IN3'
19 IN3
D.BUFF P-COMP 10
18 VO3(+) FM-DET 11
L-OUT 12
D.BUFF
13
R-OUT
17 VO3(–)
VSS 14
16 RESETt
15 OPIN
UNIVERSAL
COUNTER
CE 15
16
DI
CL 17
DO 18
5
L. O
+
−
S. C. P
+
−
3 4
38 38
AM
FM
RF
RF
FM
FM
MIX
OSC
AM
AM
MIX
OSC
OSC
BUFFER
AGC
AM AM
IF DET
FM FM
IF DET
FM
S-METER
SD
IF
ST
PIROT
TRIG
DET
STSW
FF
FF FF
PHASE VCO
COMPARATOR
DECODER
MUTE
POWER ON
RESET
PROGRAMMABLE
DIVIDER
DATA SHIFT
REGISTER
LATCH
CCB
SWALLOW
I/F
COUNTER
UNLOCK
DETECTOR
REFERENCE
DIVIDER
36 FM RF-IN
35 GND2
34 FMRF-OUT
33 VCC2
32 FM-OSC
31 AM-OSC
30 BO2
29 BO1
LOW-PASS
28 LP-OUT
FILTER
27 LP-IN
26 PD
25 AGC
24 AMDET-OUT
23 FMDET-OUT
22 MPX-IN
21 VDD
PHASE
DETECTOR
CHARGE
PUMP
20 XOUT
19 XIN