Sony HCD-EC55 / HCD-EC77 / HCD-GX99 / MHC-EC55 / MHC-EC77 / MHC-GX99 Service Manual ▷ View online
45
45
HCD-EC55/EC77/GX99
HCD-EC55/EC77/GX99
7-17. PRINTED WIRING BOARDS — DECK SECTION (EXCEPT US, CND) —
•
See page 29 for Circuit Boards Location.
:Uses unleaded solder.
IC502
IC501
DECK BOARD
AUDIO IN
PHONES
1-872-061-
12
(12)
1-872-065-
12
(12)
(CHASSIS)
MAIN BOARD
BOARD
CN606
(Page 35)
B
MAIN
CN605
(Page 35)
J
FFC502
1
9
EXCEPT US,CND
FFC404
C406
C405
C402
C401
C403
C404
R545
JR504
R546
R543
C545
R544
C546
JR503
JR502
JR501
C543
C541
C539
C538
C537
C536
C535
C534
C533
C532
C531
C530
C529
C528
C527
C526
C525
C524
C523
C522
C521
C520
C519
C517
C512
C511
C510
C509
C506
R541
C505
R540
C504
C503
R539
R538
R537
R536
R535
R534
R533
R532
R531
R530
R529
R528
R527
R526
R525
R524
R523
R522
R521
R520
R519
R518
R517
R516
R515
R514
R513
R512
R511
R510
R509
R508
R507
R506
R505
R504
R503
R502
R501
E
E
J402
J401
JW401
JW403
JW402
1
9
JACK BOARD
JW509
JW508
JW510
JW503
JW502
Q501
Q502
ET501
JW507
JW506
JW505
JW504
JW501
C542
C540
C516
C515
C514
C513
C502
C501
CN501
L501
S501
TAPE MECHANISM
DECK
1
2
A
B
C
D
E
F
G
3
4
5
6
7-18. SCHEMATIC DIAGRAM — DECK SECTION (EXCEPT US, CND) —
No mark:TAPE PLAY or REC
0
0
5 . 5
5 . 5
0
3.4
3.5
3.5
6.9
3.4
3.5
3.5
3.4
6.7
3.4
3.4
3.4
3.5
3.5
B
MAIN
BOARD(1/2)
CN606
(Page 36)
EXCEPT US,CND
6
2
1
3
5
4
L501
BIAS COIL
S501
0
R515
100k
R511
100k
R513
150
R509
1000p
C517
47p
C509
220p
C511
0
R516
100k
R512
150
R510
100k
R514
220p
C512
47p
C510
47p
C525
47p
C526
2SC1740S-RT
Q501
2SC1740S-RT
Q502
2200p
C537
2200p
C536
2200p
C535
1
2
3
4
5
6
7
8
CN501
9V
M-GND
SW
EH
VREF
Lch
COM
Rch
E
ET501
C541
0 . 1
R540
47
R541
47
C539
1
R539
4 . 7
R537
10k
R538
10k
C538
0 . 0 1
R536
4 . 7 k
R535
4 . 7 k
R534
15k
R533
22k
R507
330k
R503
2 . 2 k
C505
0 . 0 1
C503
2200p
C504
2200p
R504
2 . 2 k
C506
0 . 0 1
R508
330k
2 . 2 k
R501
2 . 2 k
R502
16V
100
C502
16V
100
C501
R517
1k
R518
1k
C519
470p
C520
470p
C521
1
C522
1
R520
47k
R519
47k
R521
47k
R522
47k
C532
0 . 0 1
C531
0 . 0 1
R526
330k
R528
330k
R525
330k
R527
330k
R530
2 . 2 k
R529
2 . 2 k
R531
8 . 2 k
R532
8 . 2 k
C534
2200p
C533
2200p
50V
1
C513
50V
1
C514
TP501
TP502
TP504
TP503
TP505
TP506
TP508
TP509
TP507
8
7
6
5
4
3
2
1
NJM4558M-TE2
IC501
OUTPUT
INPUT
-
INPUT+
GND
INPUT+
INPUT
-
OUTPUT
VCC
8
7
6
5
4
3
2
1
NJM4558M-TE2
IC502
OUTPUT
INPUT
-
INPUT+
GND
INPUT+
INPUT
-
OUTPUT
VCC
C540
4700P
1
2
3
4
5
6
7
8
9
FFC502
9V
PB-Lch
PB-Rch
A-GND
REC-Lch
REC-Rch
M-GND
9V
I-TP-STATE
16V
47
C516
16V
47
C515
1000p
C543
1
C524
1
C523
25V
22
C542
100
R543
100
R544
0 . 1
C545
0 . 1
C546
C527
470p
C528
470p
C530
330p
C529
330p
R523
3 . 3 k
R524
3 . 3 k
R505
15k
R506
15k
470
R545
470
R546
8P
BIAS OSC
BIAS OSC
9P
(CHASSIS)
C403
2 2 k
C404
2 2 k
TAPE MECHANISM
DECK
J
MAIN
BOARD(2/2)
CN605
(Page 37)
IC501
HEAD AMP
IC502
HEAD AMP
DECK BOARD
1
2
3
4
5
A
B
C
D
E
F
G
J401
AUDIO IN
C401
0 . 1
C402
0 . 1
C405
1000p
C406
1000p
TP401
TP402
TP403
TP404
TP405
TP406
TP407
TP408
J402
1
2
3
4
5
6
7
8
9
FFC404
9P
AUDIO-L
A-GND
AUDIO-R
HP-GND
H
P-L
H
P-R
AMP-ON
SP-RELAY
GND
PHONES
JACK BOARD
Ver. 1.1
46
46
HCD-EC55/EC77/GX99
HCD-EC55/EC77/GX99
7-19. PRINTED WIRING BOARD — PT BOARD (EXCEPT EC55: US, CND) —
•
See page 29 for Circuit Boards Location.
:Uses unleaded solder.
7-20. SCHEMATIC DIAGRAM — PT BOARD (EXCEPT EC55: US, CND) —
MX
MX
E2,E3,E51
D055
D052
D051
C051
D055
D052
D051
D055
D052
D051
D055
D052
D051
RY002
JW010
JW054
T002
T001
JW018
JW017
JW016
JW015
JW014
JW013
JW012
JW011
JW008
JW007
JW002
JW001
JW004
JW005
JW006
RY001
CN051
W051
TP003 EC55:E2,SP,E51
E
EXCEPT
JW054
JW018
JW012
TP002 EC77:US,CND,MX,AEP,RU/GX99
EC77:E2,E3,E51
JW054
JW018
JW012
TP002
JW054
JW018
JW012
TP003 EC55:AEP,UK,RU,MX
E2,E3,E51,MX
E2,E3,E51,MX
E2,E3,E51,MX
US,CND,AEP,UK,RU
(E2,E3,E51)
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
11
12
13
14
15
AC IN
PT001
NOT REPLACEABLE
BULT IN TRANSFORMER
BULT IN TRANSFORMER
*
*
1-872-063-
12
(12)
POWER TRANSFORMER (SUB)
POWER TRANSFORMER (MAIN)
MAIN BOARD
CN604
(Page 35)
PT BOARD
16
17
220V
230-240V
120V
S001
VOLTAGE
SELECTOR
EXCEPT EC55 : US,CND
1
5
6
7
8
9
10
11
12
13
14
15
NOT REPLACEABLE
BULT IN TRANSFORMER
BULT IN TRANSFORMER
*
*
POWER TRANSFORMER (MAIN)
16
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
NOT REPLACEABLE
BULT IN TRANSFORMER
BULT IN TRANSFORMER
*
*
POWER TRANSFORMER (MAIN)
16
17
1
5
6
7
8
9
10
11
12
13
14
15
NOT REPLACEABLE
BULT IN TRANSFORMER
BULT IN TRANSFORMER
*
*
POWER TRANSFORMER (MAIN)
16
17
1
2
A
B
C
D
E
F
G
H
I
J
K
3
4
5
6
7
PT BOARD
C051
0.1
MC2836-T112-1
D051
MC2838-T112-1
D052
10
JW001
10
JW002
TERMINAL (1P)
T001
TERMINAL (1P)
T002
S001
E2,E3,E51
RY001
1
2
3
4
1
2
3
4
5
6
7
8
HOLDER, CABLE 8P
8P
CN051
RELAY ON/OFF
V STBY
AC DETECT
VH(AC)
VL(AC)
GND
VL(AC)
VH(AC)
RY002
1
2
3
4
5
6
MC2838-T112-1
D055
1
7
13
14
10
12
11
15
3
5
8
9
16
17
2
4
6
1
7
13
14
10
12
11
15
5
8
9
16
17
6
1
3
4
5
6
7
8
9
2
PT001
JW007
JW008
JW006
JW005
120V
220V
230-240V
L
N
MAIN BOARD
(2/2)
CN604
(page 37)
E2,E3,E51,MX
EC55:AEP,UK,RU,MX
GX99
EC77:US,CND,MX,AEP,RU
EC55:E2,SP,E51
EC77:E2,E3,E51
EXCEPT EC55 : US,CND
E
EC55 : AEP,UK,RU/EC77 : US,CND,AEP,RU/GX99
EXCEPT
E2,E3,E51,MX
E2,E3,
E51,MX
*
*
*
VOLTAGE
SELECTOR
MX
JW004
MX
AC IN
POWER TRANSFORMER
POWER TRANSFORMER
POWER TRANSFORMER
(MAIN)
(MAIN)
(SUB)
Not Replaceable
Built in Transformer
*
Not Replaceable
Built in Transformer
TP002
TP003
E2,E3,E51
POWER TRANSFORMER
(MAIN)
TP002:EC77/GX99
TP003:EC55
1
2
A
B
C
D
E
F
3
4
5
6
7
9
8
10
• Semiconductor
Location
Ref. No.
Location
D051
E-3
D052
E-3
D055
E-3
Ver. 1.2
47
47
HCD-EC55/EC77/GX99
HCD-EC55/EC77/GX99
7-21. PRINTED WIRING BOARD — PT (U) BOARD (EC55: US, CND) —
•
See page 29 for Circuit Boards Location.
:Uses unleaded solder.
7-22. SCHEMATIC DIAGRAM — PT (U) BOARD (EC55: US, CND) —
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
11
12
13
14
15
K
EC55 : US,CND
D052
C051
D055
D051
TP003
T001
CN051
T002
RY001
PT001
W051
NOT REPLACEABLE
BULT IN TRANSFORMER
BULT IN TRANSFORMER
*
*
1-872-870-
11
(11)
12
(12)
POWER TRANSFORMER (SUB)
POWER TRANSFORMER
(MAIN)
MAIN BOARD
CN604
(
(
(
(
SUFFIX-12
Page 35
SUFFIX-13,-14
SUPPLEMENT-1
Page 3
PT(U) BOARD
AC IN
1
2
A
B
C
D
E
3
4
5
6
7
K
C051
0.1
MC2836-T112-1
D051
MC2838-T112-1
D052
TERMINAL (1P)
T001
TERMINAL (1P)
T002
RY001
1
2
3
4
1
2
3
4
5
6
7
8
HOLDER, CABLE 8P
8P
CN051
RELAY ON/OFF
V STBY
AC DETECT
VH(AC)
VL(AC)
GND
VL(AC)
VH(AC)
MC2838-T112-1
D055
1
7
13
14
10
12
11
15
3
5
8
9
16
17
2
4
6
1
3
4
5
6
7
8
9
2
PT001
TP003
L
N
MAIN BOARD(2/2)
CN604
EC55 : US,CND
PT(U) BOARD
POWER TRANSFORMER
POWER TRANSFORMER
(MAIN)
(SUB)
AC IN
*
*
Not Replaceable
Built in Transformer
(
(
(
(
SUFFIX-12
Page 37
SUFFIX-13,-14
SUPPLEMENT-1
Page 3
1
2
A
B
C
D
E
F
3
4
5
6
7
9
8
10
• Semiconductor
Location
Ref. No.
Location
D051
D-3
D052
D-3
D055
D-3
Ver. 1.2
48
48
HCD-EC55/EC77/GX99
HCD-EC55/EC77/GX99
• Waveforms
– BD90 Board –
– BD90 Board –
– PANEL Board –
1
IC101
ia
(RFI)
(CD PLAY mode)
0.5 to 1.3 Vp-p
200 mV/DIV, 500 ns/DIV
2
IC101
wf
(XO)
(CD PLAY mode)
59.1 ns
3.3 Vp-p
1 V/DIV, 20 ns/DIV
– MAIN Board –
1
IC801
w;
(XOUT)
13.3
µ
s
1.5 Vp-p
500 mV/DIV, 4
µ
s/DIV
1
IC301
qd
(X0A)
30.5
µ
s
2.1 Vp-p
500 mV/DIV, 10
µ
s/DIV
2
IC301
od
(X0)
198 ns
2.5 Vp-p
1 V/DIV, 100 ns/DIV
•
IC Block Diagrams
IC201 TK63115SCL-G@GT
– BD90 Board –
IC401 BA5826SFP-E2
VIN 1
GND 2
VOUT
3
V REF
ON/OFF
CONTROL
THERMAL &
OVER CURRENT
PROTECTION
VCONT
5
4 NC
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
LEVEL
SHIFT
LEVEL
SHIFT
GND
IN4
IN4'
BIAS
VCC
VCC
IN3'
IN3
VOL(+)
VOL(-)
RESET
OPIN
VO1(-)
REGB
VO1(+)
IN1
RESET
REGOUT
MUTE
GND
IN2'
IN2
VO2(+)
VOL(-)
GND
OPOUT
MUTE
VCC
VCC
13.3K
13.3K
13.3K
13.3K
100
10K
10K
10K
T.S.D.
REGULATOR,BIAS
DROP
VO3(-)
VO3(+)
CH3
CH4
CH2
CH1
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
VCC
INL3
INL4
AGND
DGND
REFIN
INL1
INR1
INR2
INR3
INR4
INL2
TREL
TRER
BASSL2
BASSL1
BASSR1
BASSR2
LOUT
ROUT
NC
NC
CLK
DATA
TONE CONTROL
BASS/TREBLE
SURROUND
INPUT
GAIN CONTROL
IGOUTR
IGOUTL
VOLINR
VOLINL
MUTE
MUTE
INPUT
GAIN
CONTROL
L ch
TONE CONTROL
BASS/TREBLE
R ch
MCU
I/F
0 - +12dB/2dB step
0 - +12dB
/2dB step
/2dB step
VOLUME
VOLUME
0 - -89dB.
0 - -89dB.
REF
INPUT
SELECTOR
INPUT
SELECTOR
SELECTOR
MODE
IC602 R2S15904SP
– MAIN Board –
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