Sony HCD-EC68USB / MHC-EC68USB Service Manual ▷ View online
HCD-EC68USB
HCD-EC68USB
37
37
(SUFFIX-12)
(SUFFIX-13)
(SUFFIX-14)
(SUFFIX-13)
(SUFFIX-14)
(SUFFIX-12)
(SUFFIX-13)
(SUFFIX-14)
(SUFFIX-13)
(SUFFIX-14)
B
A
L
(2/2)
CN607
BOARD
MAIN
BOARD
W401
KEY
POWER
CD
KEY
BOARD
31
32
T
CN902
BOARD
USB
1.3
3.1
1.3
3.1
3.3
2.9
3.3
1.5
3.3
3.3
0.9
3.3
3.3
0
3.3
3
2.8
1
3.3
3.3
3.3
1.3
3.1
3.1
0
3.3
0
0
3.1
0
0
0
0
1
1.4
3.1
0
0
0
0
0
3.3
0
0
3.1
3.1
3.1
3.1
3.3
3.3
3.1
1.3
1.3
1.3
1.3
1.3
1.3
2.6
0
0
0
3.1
3.1
3.1
0
3.9
0.7
8.1
4.5
0
0
0.7
0.1
5.7
0
3.1
3.3
3.9
7.5
4.9
4.9
4.8
4.8
4.8
4.9
4.9
0
0
0
0
0
5.1
7.1
7.1
8.1
4.9
5.1
7.7
4.9
0
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
3.1
3.1
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.1
1.3
1.3
1.3
1.3
1.3
1.3
1.3
2SC3052F-T1-LF
Q304
2SC3052F-T1-LF
Q303
R332
10k
C301
0.1
2SC3052F-T1-LF
Q305
Q306
RT1N441C-TP-1
R337
220
R338 2.2
R339
2.2
R340
4.7k
R342 220k
C308
0.1
R343 470k
Q308
RT1N441C
Q310
2SC3052
C309
50V
22
R346
47k
R347
470
R354
47k
R348
47k
R349
470
R350
47k
R351
470
R352
47k
R353
470
R358
47k
R361
47k
R357
47k
R362
22k
R364
22k
R363
22k
R367
22k
R365
22k
C320 22p
C321
0.1
R327
100
R326
100
R325
10
Q301
2SC3052F-T1-LF
R328
10k
R381
10k
C313
0.22
R380
470
R384
10k
R383
10k
R402
100k
C338 1000p
100
R301
R302 100
R303 100
R304 100
R305 100
R306 100
R307 100
R308 100
R310 100
R312 100
R313 100
R314 100
R315 100
R316 100
R317 100
R318 100
R319 100
R320 100
R321 100
R322 100
R323 100
C310
0.1
C311
0.1
C312
0.1
C330
0.1
1L0341Y23E0CA602
LED301
Q309
KTA1273
R341
33k
Q317
2SC3440
Q315
2SC3440
Q318
2SC3440
Q316
2SC3440
Q313
2SA1365
Q311
2SA1365
Q314
2SA1365
Q312
2SA1365
KTA1271Y-AT
Q302
R334
10k
R331
100k
C302
10
50V
C341
0.1
R345
4.7k
R344
2.7k
R324 100
R333
100k
R336
10k
C305
10
50V
C303
10
50V
C317
1000p
R369
1k
R370
1k
R371
1k
R372
1k
R374
1k
R385
1k
R386
1k
R387
1k
R419
100k
R420
R390
10k
R392
10k
R389
1k
R391
∗
∗
TP301
TP302
TP303
TP304
TP305
TP306
TP307
TP308
TP309
TP310
TP312
TP313
TP314
TP315
TP316
TP317
TP318
TP319
TP320
TP321
TP322
TP323
TP324
TP325
TP326
TP327
TP328
TP329
TP330
TP331
TP333
TP334
TP335
TP336
TP337
TP38
TP339
TP340
TP341
TP343
R329
2.2k
1
2
3
4
5
6
7
8
9
10
11
12
13
13P
CN302
M2-
M2+
M1-
M1+
SW-COM
SW3
SW1
I-CHACK
SW2
I-CLOSE
I-STOCK
I-OPEN
NC
R330
680
R421
10k
50V
C343
22
C314 0.047
C315 0.047
C316 0.047
C328
0.047
MAZ8043GMLS0
D301
R414
2.2k
R376
10k
R377
10k
R379
68k
R382
10k
4.7k
R422
C344
0.047
R335
22k
TP348
R368
10k
R426
100k
R366
10k
R428
47k
1.2k
R405
1.5k
R406
C345
0.047
R375
0
R373
0
1.2k
R412
1.5k
R413
R415
2.7k
R416
3.9k
R417
6.8k
R418
15k
0.047
C346
Q307
ISA1235
C304
0.1
R360
1k
R359
1k
R356
1k
R355
1k
C306
6.3V
470
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
27P
CN304
5P
CN307
R400
1k
R401
1k
C332 0.01
R378
33k
MC2836
D303
1
7
8
9 10 11 12
5
6
14
19
18
17
13
16
20
15
23 24
27
21
28
26
25
22
31
33
35
30
32
36
34
29
2
3
4
37
LCD301
4.7k
R446
4.7k
R447
VCC
OUT
GND
NJL24H400B
IC302
1
3
2
MA2J1110GLS0
D305
MA2J1
110GLS0
D302
MA2J1110GLS0
D304
FB301
(SUFFIX-12/-13)
(SUFFIX-12/-13)
FB301 0
(SUFFIX-14)
C342
1000p
4700p
C354
4700p
C355
C356
0.1
32.768kHz
X301
C319
18p
R396
330k
S301
2
3
1
6MHz
X302
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
IC301
SEG32
O-AMP-ON
O-POWER
O-CD-ON
I-3CD-SW3/O-CDM-CLOSE
I-3CD-SW2/NC
I-3CD-SW1/O-CDM-OPEN
O-3CD-M1+/O-CDM-M1+
I-RMC
O-3CD-M1-/O-CDM-M1-
O-3CD-M2+/NC
O-3CD-M2-/NC
X0A
X1A
VCC
VSS
I/O-CD-BUS0
I/O-CD-BUS1
I/O-CD-BUS2
I/O-CD-BUS3
I-3CD-CHACK
I-3CD-STOCK
O-DR-MUTE
I-REQ
O-CD-BUCK
O-CD-CCE
O-CD-RST
O-LED-STBY
I-USB-TXD/
I-DMP-TXD
I-USB-DO/
I-DMP-5V-DET
I-USB-TXD/
I-DMP-TXD
I-USB-DO/
I-DMP-5V-DET
O-USB-RXD/
O-DMP-RXD
O-DMP-RXD
AV
C
C
I-TU-DO
O-USB-DI/5V
-ON/O-TP-REC-MUTE
AV
S
S
I-P-MONI
I-KEY1
I-KEY2
I-TU-ANSD
O-USB-SEL1_2/O-SW
-ON/I-TP-ST
A
TE
I-KEY
-W
AKE-UP/VOL
I-HOLD
O-CD-SBSY
GND
I-DMP-DET/O-USB-RST
I-MODEL
I-SUFFIX
I-1CD-CLOSE_OPEN/NC
I/O-I2C-DA
TA
I/O-I2C-CLK
MD2
MD1
MD0
I-RST
O-TU-CE
O-TU-CLK
O-TU-DI
VLCD
COM0
COM1
CMO2
CMO3
SEG0
SEG1
VCC
VSS
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
VCC
VSS
X1
X0
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
C340
0.1
1
2
CN303
2P
KEY-1
GND
1
2
2P
CN306
1
KEY-0
GND
I/O-BUS0
I/O-BUS1
I/O-BUS2
I/O-BUS3
O-CD-BUCK
O-CD-CCE
I-REQ
O-CD-SBSY
O-AMP-ON
O-DR-MUTE
O-POWER
I/O-I2C-CLK
5V-ON/O-TP-REC-MUTE
I/O-I2C-DATA
I-TU-DO
I-TU-ANSD
O-TU-CLK
O-TU-DI
O-TU-CE
I-P-MONI
O-CD-RST
I-SW2
I-CHACK
I-SW1/CDM-OPEN
COM1
COM2
COM3
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG1
1
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
O-M2-
O-M2+
O-M1-/CDM-M-
I-HOLD
O-AMP-ON
O-CD-ON
O-M2-
LED-STBY
O-CD-BUCK
O-CD-CCE
M2+
M1-
I-REQ
O-DR-MUTE
R311 100
I-DMP-DET/O-USB-RST
SEG32
SEG32
I-CLOSE/OPEN
I-CLOSE/OPEN
I-STOCK
O-CD-RST
I-DMP-5V-DET
I-DMP-TXD
I-RST
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
COM3
COM2
COM1
COM0
O-TU-CLK
O-TU-CE
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
5V
-ON/O-TP-REC-MUTE
O-CD-SBSY
O-CD-ON
O-POWER
COM0
I-STOCK
I-CHACK
I/O-BUS0
I/O-BUS1
I/O-BUS2
I/O-BUS3
I-SW1/CDM-OPEN
O-M2+
O-M1+/CDM-M+
O-M1-/CDM-M-
I-RMC
I-SW2
LED-STBY
O-M1+/CDM-M+
O-SW-ON/I-TP-STATE
R433 470
R434 470
R435 470
R437 470
TP344
TP345
TP346
I-DMP-5V-DET
I-DMP-TXD
O-DMP-TXD
M1+
M1-
I-SW3/CDM-CLOSE
I-KEY-WAKE-UP/VOL
M2-
M1+
I-MODEL
I-SUFIX
I-RMC
I-TU-DO
I-KEY1
I-KEY2
I-TU-ANSD
I-KEY
-W
AKE-UP/VOL
I-HOLD
I-SUFIX
I-MODEL
I/O-I2C-DA
TA
I-DMP-DET/O-USB-RST
I/O-I2C-CLK
I-SW3/CDM-CLOSE
M2+
O-TU-DI
I-RST
I-P-MONI
O-DMP-RXD
O-SW
-ON/I-TP-ST
A
TE
M2-
I-KEY2
I-KEY1
470p
C347
C348
470p
REMOTE CONTROL
IC302
SW311
V
SW312
SW313
SW314
SW315
SW316
SW317
SW318
SW319
DISPLAY
PANEL BOARD
SYSTEM CONTROLLER
MB90F831PF-G-SPE1
IC301
LIQUID CRYSTAL DISPLAY
W301
O-TU-CE
O-TU-DI
O-TU-CLK
I-TU-ANSD
I-TU-DO
I/O-I2C-DATA
O-SW-ON/I-TP-STATE
I/O-I2C-CLK
5V-ON/TP-REC-MUTE
O-POWER
I-DMP-DET/O-USB-RST
O-CD-M-MUTE
O-AMP-ON
O-CD-SBSY
O-CD-REQ
O-CD-CCE
O-CD-BUCK
I/O-BUS3
O-CD-RST
I-P-MONI
O-CD-ON
D-GND
V-STBY
M-GND
28
29
30
31
I-DMP-TXD
I-DMP-5V-DET
O-DMP-RXD
NC
4
3
2
1
USB-SI
USB-DO
5
USB-SO
USB-DI
SEL1
I/O-BUS2
I/O-BUS1
I/O-BUS0
STANDBY
/
LED DRIVE
Q302-304
+4V REGULATOR
Q305,306
VOLTAGE DETECT
Q311-318
MOTOR DRIVE
∗R391
1k (AEP)
47k (E2)
100k (E51,MX,AR)
100k (E51,MX,AR)
∗R419
27k (EXCEPT MX (SUFFIX-14))
33k (MX (SUFFIX-14))
(EXCEPT AEP)
(CHASSIS)
REGULATOR
Q307-310
CD
DECK
MECHANISM
RECEIVER
ROTARY ENCODER
VOLUME
TUNING +
SW305
USB
FUNCTION
SW304
SW303
- TUNING
ENTER
DSGX
ERASE
EQ
USB SYNC REC/
REC 1
7
11
D
B
16
6
9
17
10
F
5
15
L
K
3
G
1
12
C
E
H
8
J
4
13
A
14
2
I
M
(Page 31)
6-19. SCHEMATIC DIAGRAM - PANEL Board -
• See page 40 for waveforms. • See page 40 for IC Block Diagrams. • See page 42 for IC Pin Function Description.
(Page 27)
(Page 33)
(Page 33)
Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING
BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.
Ver. 1.1
HCD-EC68USB
HCD-EC68USB
38
38
C051
C052
D051
D052
D055
1
8
1
3
S001
CN051
CN053
RY001
RY001
RY002
RY002
JW003
JW004
JW005
JW006
JW007
JW008
JW010
JW01
1
JW012
JW013
JW014
JW015
JW016
JW017
JW018
JW019
JW020
W001
PT BOARD
230-240V
220V
120V
–2
–1
∗
NOT REPLACEABLE:
BUILD IN TRANSFORMER
BUILD IN TRANSFORMER
∗
5
5
PT001 (AEP)
PT002 (EXCEPT AEP)
SUB POWER TRANSFORMER
(E51, AR)
(E2, E51, AR)
(AEP)
(AEP)
(AEP)
(AR)
(MX)
(MX)
(EXCEPT AEP)
(EXCEPT AEP)
(EXCEPT AEP)
(E2, E51)
VOLTAGE SELECTOR
(AC IN)
PT003(EXCEPT AEP)
PT004(AEP)
MAIN POWER
TRANSFORMER
J2
MAIN
BOARD
CN604
J1
MAIN
BOARD
CN604
1-875-494-
12, 13, 14
(12, 13, 14)
B
C
D
E
F
1
2
3
4
5
A
(CHASSIS)
(SUFFIX-14)
(SUFFIX-12/-13)
6-20. PRINTED WIRING BOARD - PT Board -
•
: Uses unleaded solder.
• See page 23 for Circuit Boards Location.
(Page 28)
(Page 29)
Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING
BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.
Ver. 1.1
HCD-EC68USB
HCD-EC68USB
39
39
6-21. SCHEMATIC DIAGRAM - PT Board -
(1/2)
J
MAIN
BOARD
CN604
C051
0.1
MC2836
D051
MC2838-T112-1
D052
RY001
1
2
3
4
5
6
7
8
8P
CN051
RELAY ON/OFF
V STBY
AC DETECT
VH(AC)
VL(AC)
GND
VL(AC)
VH(AC)
RY002
MC2838-T112-1
D055
JW006
JW004
JW005
JW003
JW007
JW008
1
3
3P
CN053
LIVE
NEUTRAL
PT002
PT003
3
11
12
13
14
5
10
2
4
6
PT004
3
11
12
13
14
1
5
10
2
4
6
1
3
4
5
6
7
8
9
2
PT001
0.1
C052
PT BOARD
VOLTAGE
SELECTOR
S001
120V
220V
230-240V
-1
-2
(AC IN)
SUB POWER TRANSFORMER
SUB POWER TRANSFORMER
MAIN POWER TRANSFORMER
MAIN POWER TRANSFORMER
(EXCEPT AEP)
(EXCEPT AEP)
(EXCEPT AEP)
(AEP)
(MX)
(MX)
(AR)
(AEP)
(AEP)
∗
∗
∗NOT REPLACEABLE:
BUILD IN TRANSFORMER
W001
(CHASSIS)
7
11
D
B
6
9
10
F
5
3
G
1
12
C
E
8
4
13
A
2
1
3
4
5
6
7
8
9
2
1
(E51, AR)
(E2,E51, AR)
(E2,E51)
(Page 30)
Ver. 1.1
HCD-EC68USB
HCD-EC68USB
40
40
• IC Block Diagrams
– CD Board –
– CD Board –
IC201 TK63115SCL-G@GT
IC401 BA5826SFP-E2
1
2
3
4
5
6
7
8
9
10
11
12
13
13
14
28
27
26
24
23
22
21
20
19
18
17
16
15
25
LEVEL
SHIFT
LEVEL
SHIFT
THERMAL
SHUT-DOWN
REGULATOR
REGULATOR
BIAS TRAP
LEVEL
SHIFT
MUTE
LEVEL
SHIFT
D.BUFF
D.BUFF
D.BUFF
GND
IN4
IN4'
BIAS
VCC
VCC
IN3'
IN3
VO3(+)
VO3(–)
VO4(–)
VO4(+)
RESETt
OPIN
VO1(–)
REGB
VO1(+)
IN1
RESET
REGOUT
MUTE
GND
IN2'
IN2
VO2(+)
VO2(–)
GND
OPOUT
D.BUFF
D.BUFF
D.BUFF
D.BUFF
D.BUFF
REGULA
TOR
VCC
VCC
THERMAL &
OVER CURRENT
PROTECTION
VOLTAGE
REFERENCE
ON/OFF
CONTROL
VIN 1
GND 2
VCONT 3
NC
4
VOUT
5
+
–
– USB Board –
IC303 TC74VHC157FT (EKJ)
IC915 R5523N001B-TR-F
• Waveforms
– CD Board –
– CD Board –
IC101 XG (XO)
(CD play mode)
(CD play mode)
1 V/DIV, 20 ns/DIV
59.1 ns
3.3 Vp-p
IC101 JB (RFi)
(CD play mode)
(CD play mode)
200 mV/DIV, 500 ns/DIV
0.5 to 1.3 Vp-p
RB
IC901 VE (X2)
1 V/DIV, 50 ns/DIV
111 ns
3.7 Vp-p
XB
IC801 RM (XIN)
500 mV/DIV, 5
μs/DIV
13.3
μs
1 Vp-p
FT
IC301 PT (X1)
1 V/DIV, 50 ns/DIV
166 ns
3 Vp-p
FB
IC301 RG (X1A)
1 V/DIV, 10
μs/DIV
30.5
μs
3 Vp-p
– USB Board –
– PANEL Board –
– MAIN Board –
SELECT 11
1
1A 2
3
4
5
6
7
INPUT
INPUT
OUTPUT
OUTPUT
1A
1B
1Y
2A
2B
2Y
1B
1Y
2A
2B
2Y
GND 8
V
CC
STROBE
16
4A
15
14
13
11
12
11
10
INPUT
INPUT
OUTPUT
OUTPUT
G
4B
4Y
3A
4A
4B
4Y
3A
3B
9
3B
3Y
3Y
S
1
EN
2
GND
3
FLG
4 IN
5 OUT
GATE
CONTROL
UVLO
THERMAL
SHUTDOWN
CURRENT
LIMIT
FLAG
DELAY
– MAIN Board –
IC602 BD3499FV-E2
1
A1
18 BCB1
17 BCA1
16 BCA2
17 BCA1
16 BCA2
20 SB2
19 OUT2
22 SB1
21 SR
21 SR
24 VCC
23 OUT1
26 SDA
25 SCL
25 SCL
28 FIL
27 GND
27 GND
15 BCB2
2
A2
3
B1
5
C1
6
C2
4
B2
11
VOL1
12
VOL2
13
TC2
14
TC1
7
D1
8
D2
9
SEL2
10
SEL1
INPUT
SELECTOR
TREBLE/
BASS
INVERTER
VOLUME
INPUT
GAIN
SURROUND
PC BUS
LOGIC
IC701 BD9701CP-V5
VCC
1
OUT
2
GND
3
INV
4
STBY
5
REGULATOR
STANDBY
VOLTAGE
REFERENCE
Click on the first or last page to see other HCD-EC68USB / MHC-EC68USB service manuals if exist.