DOWNLOAD Sony CMT-EH25 / CMT-EH26 / HCD-EH25 / HCD-EH26 Service Manual ↓ Size: 4.35 MB | Pages: 53 in PDF or view online for FREE

Model
CMT-EH25 CMT-EH26 HCD-EH25 HCD-EH26
Pages
53
Size
4.35 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-eh25-cmt-eh26-hcd-eh25-hcd-eh26.pdf
Date
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Sony CMT-EH25 / CMT-EH26 / HCD-EH25 / HCD-EH26 Service Manual ▷ View online

HCD-EH25/EH26
29
IC401  BD3881FV
28
REC1O
27
REC1N
26
REC2N
25
REC2O
24
INC2
23
INC1
22
INB2
21
INB1
20
INA2
19
INA1
18
OUT1
17
BAS1
16
OUT2
15
BAS2
BASS
BASS
13
CONT
14
VEE
12
VDD
11
TRE2
10
TRE1
TREBLE
TREBLE
7
VOLIN1
8
VOLIN2
9
GND
VOLUME
VOLUME
6
PB1O
LOGIC
CONTROL
5
PB2O
4
PB2N
1
PB1N
2
PB1P
3
PB2P
IC451, 452  NJM2521M (TE2)
VOUT
VCC
VIN3 (MUTE)
1
2
3
4
5
6
7
GND
BUFFER
VIN1
VIN2
SW1
SW2
8
BIAS
HCD-EH25/EH26
30
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
HCD-EH25/EH26
31
CONTROL
CIRCUIT
BANDGAP
REFERENCE
+
–
OVER HEAT &
OVER CURRENT
PROTECTION
1
VCONT
3
NP
2
GND
4
VOUT
5
VIN
OVER HEAT &
OVER CURRENT
PROTECTION
BANDGAP
REFERENCE
CONTROL
CIRCUIT
GND
VIN
2
5
VOUT
4
NP
3
VCONT
1
+
–
– PANEL Board –
IC706  TK11135CSCL-G
IC707  TK70533SCL-G
IC861  PT2579SN
RDCL
T57
OSC2
OSC1
DVSS
MODE
DVDD
TEST
QUAL
RDDA
VREF
MUX
AV
D
D
AVSS
CIN
SCOUT
1
4
3
6
5
8
7
2
14
15
16
13
12
11
10
9
CLOCK
REGENERATION
& SYNC
BIPHASE
SYMBOL
DECODER
TEST LOGIC &
OUTPUT SELECTOR
SWITCH
OSCILLATION
&
DIVIDER
57 kHz
BAND PASS
(8th ORDER)
COSTAS LOOP
VARIABLE &
FIXED DIVIDER
QUALITY BIT
GENERATOR
DIFFERENTIAL
DECODER
ANTI-ALIASING
FILTER
CLOCKED
COMPARATOR
REFERENCE
VOLTAGE
RECONSTRUCTION
FILTER
HCD-EH25/EH26
32
– PT-VBUS Board –
IC901  PQ1CG2032FZ
1
VIN
2
VOUT
3
COM
4
OADJ
5
ON/OFF
ON/OFF
CIRCUIT
VOLTAGE
REGULATOR
SOFT START
R
Q
S
OVERCURRENT
DETECTION
CIRCUIT
OCSILLATION
OVERHEAT
DETECTION
CIRCUIT
+
–
–
+
PWM COMPARATOR
ERROR
AMP
VDD 2
GND 1
+
–
VREF
CD
3
OUT
4
IC709  PST3542UL
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