Sony CMT-BX1 / CMT-BX3 / CMT-BX5BT / HCD-BX5BT / HCD-CBX1 / HCD-CBX3 Service Manual ▷ View online
HCD-BX5BT/CBX1/CBX3
45
45
HCD-BX5BT/CBX1/CBX3
6-25. SCHEMATIC DIAGRAM – POWER Board –
C901
C905
C914
C921
C931
CN901
D907
D908
D909
D910
D911
D912
D916
D917
D918
D919
D920
D922
D923
R901
R902
R904
R905
R906
R908
R909
R910
R911
RY901
WIRE900
JW909
JW907
JW906
JW904
JW902
JW901
D906
T902
T901
F901
F902
LF901
R903
CN904
D913
D914
C906
C902
0.1
0.1
10 50V
1000
16V
0.0047
250V
3P
1N4002B
1N4002B
1N4002B
1N4002B
1N4002B
1N4002B
1N5401
1N5401
1N5401
1N5401
MC2838
1SS355WTE-17
MC2838
22k
22k
4.7k
4.7k
10k
1k
1k
0
0
1SS355WTE-17
T2AL
250V
250V
1N4002B
1N4002B
0.1
0.1
2.2M
1/2W
1/2W
RELAY
GND
ACDET
+B
-B
PROTECT
UNREG
UNREG GND
SUB GND
UNREG SUB
USB UNREG
USB UNREG
(CHASSIS)
SUB POWER TRANSFORMER
BUILT IN TRANSFORMER
∗
NOT REPLACEABLE:
MAIN POWER TRANSFORMER
T1AL 250V(BX5BT)
T2AL 250V(CBX3)
(AC IN)
LINE FILTER
10P(CBX1)
(CBX3)
(BX5BT/CNX1)
(BX5BT/CBX1)
(BX5BT/CBX3)
12P(BX5BT/CBX3)
(BX5BT/CBX3)
(Page 36)
HCD-BX5BT/CBX1/CBX3
46
46
HCD-BX5BT/CBX1/CBX3
•
Waveforms
– CD Board –
ws
IC301
qd
(XOUT)
1 V/DIV, 100 ns/DIV
200 ns
3.3 Vp-p
wa
IC301
qa
(XCOUT)
1 V/DIV, 10
µ
s/DIV
30.6
µ
s
2.5 Vp-p
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
qa
IC901
ud
(X2)
1 V/DIV, 50 ns/DIV
111 ns
3.7 Vp-p
wd
IC301
wl
(LCD CLK)
1 V/DIV, 5
µ
s/DIV
14.6
µ
s
3.7 Vp-p
wf
IC301
ug
(CD CLK)
(CD play mode)
1 V/DIV, 2
µ
s/DIV
4.4
µ
s
3.7 Vp-p
– USB Board –
– MAIN Board –
•
IC Block Diagrams
– CD Board –
IC201 TK63115SCL-G@GT (BX5BT/CBX1)
THERMAL &
OVER CURRENT
PROTECTION
VOLTAGE
REFERENCE
ON/OFF
CONTROL
VIN 1
GND 2
VCONT 3
NC
4
VOUT
5
+
–
IC201 XC6215B152MR (CBX3)
VOUT
5
NC
4
VIN 1
VSS 2
CE 3
+
–
ON/OFF
CONTROL
CURRENT
LIMIT
VOLTAGE
REFERENCE
EACH CIRCUIT
ERROR MP
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
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
REGULATOR
VCC
VCC
47
HCD-BX5BT/CBX1/CBX3
– BT Board –
IC903 XC6213B332MR
VIN 1
CE 3
VSS 2
NC
4
VOUT
5
+
–
ON/OFF
CONTROL
CURRENT
LIMIT
VOLTAGE
REFERENCE
– USB Board –
IC915 R5523N001B-TR-F
1
EN
2
GND
3
FLG
4
IN
5
OUT
GATE
CONTROL
UVLO
THERMAL
SHUTDOWN
CURRENT
LIMIT
FLAG
DELAY
– MAIN Board –
IC304 R2S15904SP
24
23
22
MCU
I/F
TONE CONTROL
L-CH BASS/TREBLE
SURROUND
21
20
25
26
27
28
INR4
LOUT
ROUT
AGND
VCC
REFIN
DATA
CLK
DGND
TRER
TREL
NC
BASSL2
NC
INR3
INPUT
SELECTOR
INPUT
SELECTOR
INPUT GAIN
CONTROL
INPUT GAIN
CONTROL
MUTE
MUTE
REF
MODE
SELECTOR
VOLUME
VOLUME
INR2
INR1
INL1
INL2
INL3
INL4
IGOUTL
VOLINL
IGOUTR
VOLINR
BASSR1
BASSL1
BASSR2
19
18
17
16
15
1
2
3
5
6
7
8
9
4
10
11
12
13
14
TONE CONTROL
R-CH BASS/TREBLE
IC308 MM1615ANLE
2
5
VIN
4
VOUT
GND
1
CONT
3
NOISE
DRIVER
THERMAL
SHUTDOWN
BIAS
REFERENCE
+
–
CURRENT
LIMITTER
LIMITTER
IC309 MC14052BDTR2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
2Y0
1Y2
VCC
1Y1
1-COM
1Y0
1Y3
A
B
GND
GND
INH
2Y1
2Y3
2-COM
2Y2
48
HCD-BX5BT/CBX1/CBX3
IC310 PST3629NR
– AMP Board –
IC601 STK433-730S-E
VDD 2
OUT 1
GND 3
+
–
VREF
CD
5
NC
4
IC311 BA6956AN
1
2
3
4
5
6
7
8
9
CONTROL LOGIC
TSD
VREF
OUT2
OUT1
RNF
VM
VCC
FIN
GND
RIN
IC321, 322 TC74HC4066AFT (EL)
1I/O
VCC
1
14
1C
13
4C
12
4I/O
11
4O/I
10
1O/I 2
2O/I 3
2I/O 4
2C 5
3C 6
GND 7
3O/I
9
3I/O
8
IC323 TC74VHC157FT (EKJ)
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
11
IN/1
10
MONITOR
13
ST-BY
4
CH1+
12
NF/1
8
+PRE
9
GND/SUB
2
-VCC
1
-PRE
3
+VCC
5
CH1-
PRE DRIVE
CH1
FINAL DRIVE
CH1
14
NF/2
6
CH2+
15
IN/2
7
CH2-
PRE DRIVE
CH2
FINAL DRIVE
CH2
STANDBY
CIRCUIT
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