Sony CMT-BT60 Service Manual page 48

CMT-BT60/BT60B/BT80W/BT80WB
• Waveforms
– MAIN Board –
IC501 8 (XTALO) IC762 ql (LRCK)
1 7
1.4 Vp-p
37 ns 20.8 s
1 V/DIV, 20 ns/DIV 2 V/DIV, 10 s/DIV
IC762 wa (MCLKO)
2 IC501 <zzx (ACLK) 8
4.6 Vp-p
82 ns
58 ns
2 V/DIV, 20 ns/DIV 2 V/DIV, 50 ns/DIV
3 IC501 <zzc (ABCK) 9 IC762 ws (SCLKOUT1)
4.4 Vp-p
360 ns 360 ns
2 V/DIV, 200 ns/DIV 2 V/DIV, 200 ns/DIV
4 IC501 <zzm (ALRCK) 0 IC762 wd (SCLKOUT2)
4.1 Vp-p
360 ns
22.7 s
2 V/DIV, 10 s/DIV 2 V/DIV, 200 ns/DIV
IC501 <zxc (RFIP) IC101 qa (Xcout)
5 qa
(CD play mode)
1.05 ± 0.45 Vp-p
200 mV/DIV, 500 ns/DIV 1 V/DIV, 10 s/DIV
IC762 4 (XTALO) IC101 qd (Xout)
6 qs
1.1 Vp-p
85 ns
500 mV/DIV, 50 ns/DIV 2 V/DIV, 100 ns/DIV
CMT-BT60/BT60B/BT80W/BT80WB
IC902 1 (BOOT)
qd
4.2 Vp-p 24 Vp-p
1 s
10 V/DIV, 500 ns/DIV
IC903 1 (BOOT)
qf
4.3 Vp-p 23.2 Vp-p
1 s
10 V/DIV, 500 ns/DIV
qg IC904 1 (BOOT)
4.5 Vp-p
22.4 Vp-p
20 s
10 V/DIV, 10 s/DIV
– JACK Board –
IC5008 1 (BOOT)
w;
4.5 Vp-p
640 s
10 V/DIV, 500 s/DIV
1.8 Vp-p
30.5 s
– LCD Board –
IC5301 rf (OSC)
e;
3.3 Vp-p
200 ns
27 s
2 V/DIV, 20 s/DIV
• IC Block Diagrams
– MAIN Board –
IC103 – 105, 107, 905 MM3411A33NRE
VDD 1
GND 2
VOLTAGE
REFERENCE
CE 3 BIAS
IC202 TC74VHC4066AFK (EK)
1I/O 1
1O/I 2
2O/I 3
2I/O 4
2C 5
3C 6
GND 7
20 Vp-p
IC481 TAS5708PHPR
36 35 34 33 32 31 30 29
2 HB
PVCC_C 37
FET OUT
BST_C 38
VCLAMP_CD 39
2 HB
BST_D 40
FET OUT
BYPASS 41
AGND 42
PROTECTION
AVCC 43
LOGIC
HIZ 44
BST_A 45
VCLAMP_AB 46
BST_B 47
PVCC_B 48
3.4 Vp-p
1 2 3 4 5 6 7 8
48 48
5 VOUT
CURRENT
LIMIT
4 NC
+
IC308, 309 TC7WBL3305CFK, RS
14 VCC
OE1 1
13 1C
A1 2
12 4C
B1 3
11 4I/O
GND 4
10 4O/I
9 3O/I
8 3I/O
28 27 26 25
DAP
L
4th ORDER
7 BQ
NOISE SHAPER
SRC DRC VOLUME
&
R
7 BQ
PWM
SERIAL
CLICK
CONTROL
&
MICROCONTROLLER
POP
BASED
CONTROL
SYSTEM
SAMPLE RATE
CONTROL
TERMINAL CONTROL AUTODETECT
9 10 11 12
8 VCC
7 OE2
6 B2
5 A2
24 SCL
23 SDA
SERIAL
AUDIO 22 SDIN
PORT
21 SCLK
20 LRCLK
19 PDN
18 VR_DIG
17 DVSSO
16 OSC_RES
& PLL
15 MCLK
14 FAULT
13 AVDD