DOWNLOAD Sony CMT-EP305 / HCD-EP305 Service Manual ↓ Size: 2.04 MB | Pages: 40 in PDF or view online for FREE

Model
CMT-EP305 HCD-EP305
Pages
40
Size
2.04 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-ep305-hcd-ep305.pdf
Date
PREV: Sony CMT-CP505MD / HCD-CP505 Service Manual

Sony CMT-EP305 / HCD-EP305 Service Manual ▷ View online

25
25
HCD-EP305
6-10. Printed Wiring Board  POWER Section
POWER BOARD
MAIN BOARD
E
(Page 19)
AC
IN
TR401
POWER
TRANSFORMER
E
E
K
A 
K
A
A
B
C
D
E
F
1
2
3
4
5
Ref. No.
Location
D401
F-4
D402
F-3
D403
F-4
D404
F-4
D405
F-2
D406
F-3
D407
F-2
D408
F-3
D409
D-3
D411
D-4
D412
D-4
D413
D-4
D414
D-4
Q401
D-1
Q402
D-2
ZD401
E-2
• Semiconductor
Location
• See page 15 for Circuit Boards Location.
26
26
HCD-EP305
6-11. Schematic Diagram  POWER Section
0.6
0
0.8
1.6
No mark:FM
MAIN BOARD
(2/2)
E
CN402
6P
C407
100
25V
C405
100
25V
C401
100
10V
R406
390
3W
+
C404  0.01u
C402  0.01u
C408  0.01u
C406  0.01u
TR401
POWER
TRANSFORMER
MTZJ-6.8B
+
+
+
Q401, 402
POWER ON/OFF
RELAY DRIVE
Q402
2SA733
C411
0.1
Q401
2SC3330
TR402
POWER
TRANSFORMER
2.2k
C410  680p  250V
82 1/4W
120V
RL401
AC IN
POWER BOARD
2.2k
(Page 21)
510
100k 
27
HCD-EP305
• 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-EP305
– CASSETTE  Board –
IC203
LC75392
IC701
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
Page of 40
Display

Click on the first or last page to see other CMT-EP305 / HCD-EP305 service manuals if exist.

RANDOM: