Sony HCD-SX7 Service Manual page 56

2020/02/27 22:53:44 (GMT+09:00)
HCD-SX7/SX7B
• Waveforms
– MAIN Board –
IC503 8 (XTALO) IC705 ea (XOUT)
1 7
1.3 Vp-p
37.2 ns
500 mV/DIV, 20 ns/DIV
IC503 <zzc (GPIO) IC204 qf (AUDIO_XOUT)
2 8
3.4 Vp-p
356 ns
2 V/DIV, 200 ns/DIV
IC503 <zzm (GPIO)
3 9 IC204 wl (SSISCK0)
3.4 Vp-p
22.8 s
2 V/DIV, 10 s/DIV
4 IC503 <zxc (RFIP) 0 IC204 e; (SSIWS0)
(CD play mode)
0.9 Vp-p
500 mV/DIV, 500 ns/DIV
5 IC705 qf (BCKOUT) IC204 yk (RTC_X2)
qa
3.6 Vp-p
326 ns
2 V/DIV, 200 ns/DIV
IC705 qg (LRCKOUT) IC204 ua (XTAL)
6 qs
3.6 Vp-p
20.8 s
2 V/DIV, 10 s/DIV
HCD-SX7/SX7B
IC204 os (AUDIO_X2)
qd
3.6 Vp-p
40.2 ns
39.8 ns
2 V/DIV, 20 ns/DIV 1 V/DIV, 20 ns/DIV
IC204 <zv/ (USB_X2)
qf
3.7 Vp-p
21 ns
40.6 ns
2 V/DIV, 20 ns/DIV 500 mV/DIV, 10 ns/DIV
qg IC902 1 (BOOT)
15.6 Vp-p
4.4 Vp-p
81.5 ns 1 s
2 V/DIV, 50 ns/DIV 10 V/DIV, 500 ns/DIV
qh IC903 1 (BOOT)
16.8 Vp-p
3.6 Vp-p
1.1 s
5.2 s
2 V/DIV, 2 s/DIV 10 V/DIV, 1 s/DIV
qj IC904 1 (BOOT)
1.7 Vp-p
16.8 Vp-p
30 s
1.1 s
1 V/DIV, 10 s/DIV 10 V/DIV, 500 ns/DIV
3 Vp-p
68.5 ns
2 V/DIV, 50 ns/DIV
• IC Block Diagrams
– MAIN Board –
IC003, 606, 608 MM3411A33URE
IC501 MM3411A12URE
IC907, 1102 MM3571A33URE
CE 1 BIAS
2.5 Vp-p
VOLTAGE
REFERENCE
GND 2
1.3 Vp-p
IC205 BU4229F-TR
GND 1
VREF
+
–
VDD 2
IC505, 609, 851, 906 S-13A1A33-E6T1U3
IC601 S-13A1A15-E6T1U3
IC910 S-13A1A12-E6T1U3
VOUT 1
VSS 2
ON/OFF 3
56 56
IC201 TCA6424ARGJR
GND 25
ADDR 26
VCCP 27
RESET 28
4 VDD SCL 29
SDA 30
–
VCCI 31
+
CURRENT
INT 32
LIMIT
3 VOUT
IC206 TC74VHC4066AFK (EK)
1I/O 1
1O/I 2
2O/I 3
4 VOUT
2I/O 4
3 CT
2C 5
3C 6
GND 7
IC604 TC7WBL3305CFK, RS
OE1 1
6 VIN
OVERCURRENT
PROTECTION
THERMAL
A1 2
SHUTDOWN
+ ON/OFF
B1 3
– CONTROL
GND 4
REFERENCE
VOLTAGE
5 VSS
INRUSH CURRENT
4 SSC
LIMITING
24 23 22 21 20 19 18 17
16 P17
15 P16
14 P15
13 P14
POWER-ON
12 P13
RESET
11 P12
24 Bits
10 P11
INPUT I2C BUS SHIFT I/O
9 P10
FILTER CONTROL REGISTER PORT
WRITE PULSE
READ PULSE
INTERRUPT
LP FILTER
LOGIC
1 2 3 4 5 6 7 8
14 VCC
13 1C
12 4C
11 4I/O
10 4O/I
9 3O/I
8 3I/O
8 VCC
7 OE2
6 B2
5 A2
SYS SET