DOWNLOAD Sony CMT-EP404 / HCD-EP404 Service Manual ↓ Size: 2.32 MB | Pages: 41 in PDF or view online for FREE

Model
CMT-EP404 HCD-EP404
Pages
41
Size
2.32 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-ep404-hcd-ep404.pdf
Date
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Sony CMT-EP404 / HCD-EP404 Service Manual ▷ View online

25
25
HCD-EP404
6-9. Printed Wiring Board  POWER Section
Ref. No.
Location
D201
E-3
D202
E-4
D203
E-3
D204
E-3
D205
D-2
D206
D-3
D207
D-2
D208
D-3
D212
C-4
D213
C-4
D215
C-4
D216
C-3
D217
C-3
D218
C-3
D221
C-3
Q205
C-2
Q206
C-2
• Semiconductor
Location
• See page 15 for Circuit Boards Location.
E
E
POWER BOARD    
T201
POWER
TRANSFORMER
AC
IN
K
K
A
K
K
A
A
A
TO
MAIN BOARD
(Page 19)
A
1
2
A
B
C
D
E
3
4
5
26
26
HCD-EP404
6-10. Schematic Diagram  POWER Section
0
5
0.7
5.8
5.7
No mark : FM
AC IN
POWER TRANSFORMER
POWER TRANSFORMER
2SC536NP-F
2SA608SP-G
Q205,206
POWER ON/OFF
RELAY DRIVE
50V
22000p   
22000p   
22000p   
22000p   
22000p   
22000p   
22000p   
22000p   
22000p   
22000p   
22000p   
22000p   
22000p   
22000p   
25v
MTZJ-T-72-6.8B
MTZJ-T-
72-6.2B
50V
TO
MAIN BOARD
(3/3)
A
(Page 22)
POWER BOARD
1
2
A
B
C
D
E
F
3
4
5
6
7
8
9
27
HCD-EP404
• IC Block Diagrams
IC101
LA1823
– MAIN Board –
24
23
FM
RF
1
AM
RF
GND2
2
VCC2
REG
3
AM
MIX
AM
OSC
OSC
BUFFER
4
22
21
VCC1
20
FM
OSC
PHASE
COMP
FM
MIX
DECODER
5
6
19
GND1
7
MUTE
8
18
17
16
9
15
PILOT
DET
14
FM
DET
13
10
FM
S-METER
11
12
ST
ST  SW
FF
VCO
FF
FF
TRIG
AM
IF
AM
DET
AGC
FM
IF
SD
IF
BUFFER
 FMRF IN
RF GND
FMRF OUT
VCC2
FM OSC
DET OUT
MUTE
R
L
AM/FM
MO/ST
FM DET
AMRF IN
REG
AM OSC
VCC1
FM MIX
GND
FM BUFFER
AM OSC BUFFER
AM MIX
QUAD
AMIF
SD
IC102
LC72131
PHASE
DETECTOR
CHARGE PUMP
SWALLOW COUNTER
1/16, 1/17 4BITS
12BITS
PROGRAMMABLE
DRIVER
UNIVERSAL
COUNTER
REFERENCE
DIVIDER
POWER
ON
RESET
1/2
CCB
INTERFACE
1
3 4 5 6
7 8 9 10
18
17
16
15
13
12
11
19
20
21
22
XOUT
VSS
AOUT
AIN
PD
VDD
FMIN
AMIN
14
NC
XIN
DO
CL
DI
CE
2
NC
IFIN
IO1
BO4
BO3
BO2
BO1
IO2
UNLOCK
DETECTOR
DATA SHIFT REGISTER LATCH
28
HCD-EP404
IC401
LC75392
IC702
AN7312
+
–
3
6
9
12
15
2
5
8
11
14
1
4
7
10
13
28
25
22
19
16
29
26
23
20
17
30
27
24
21
18
+
–
+ 
–
+ 
–
LATCH
DECODER
CONTROL
SHIFT
REGISTER
–
+
LVROUT
LVRIN
LTOUT
LTCOM
LT4
LT3
LT2
LT1
L4
L3
L2
L1
VDD
CL
DI
RVROUT
RVRIN
RTOUT
RTCOM
RT4
RT3
RT2
RT1
R4
R3
R2
R1
VREF
VSS
CE
RIPPLE FILTER
ALC
14
13
12
1
2
3
11
10
9
AMP. CH2
AMP. CH1
8
4
5
6
7
VCC
RF
ALC IN2
OUT2
PC2
NF2
IN2
GND
ALC CONST
ALC IN1
OUT1
PC1
NF1
IN1
IC701
uPC1330HA-NA
1
2
3
4
5
6
7
8
9
INVERTER
COMPARATER
SW R1
GND
SW P1 CONT
GND
VCC
SW P2 GND
SW R2
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