Sony HCD-CBX3 - Page 46

HCD-BX5BT/CBX1/CBX3
4646
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 NC4
VOUT5
+
–
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
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