Sony CX-LDB30 Service Manual page 42

CX-LDB30/LDB50
• Waveforms
– BD Board – – MAIN Board –
1 3
IC101 ra (RFACO) IC901 qg (16MHz-IN)
1.2 Vp-p
62.7 ns (16 MHz)
200 mV/DIV, 1 µ s/DIV
1 V/DIV, 40 ns/DIV
2 4
IC101 uj (XTAO) IC901 0 (32kHz-IN)
3.3 Vp-p
30.5 µ s (32.768 kHz)
59.1 ns (16.9 MHz)
1 V/DIV, 20 µ s/DIV
1 V/DIV, 40 ns/DIV
• IC Block Diagrams
— BD Board —
VOLTAGE
REFERENCE
1 2
IC251 BA5947FM-E2
28 27 26 25 24 23
+ –
INTERFACE
INTERFACE
INTERFACE
1 2 3 4 5 6
CX-LDB30/LDB50
1.4 Vp-p
1.6 Vp-p
IC303 BH15FB1WG
THERMAL
PROTECTION
OVER CURRENT
PROTECTION
CONTROL
BLOCK
3 4 5
22 21 20 19 18 17 16 15
MUTING D D D D
LEVEL SHIFT
D D D D
VREF
7 8 9 10 11 12 13 14
120 119 118 117 116
SERVO
INTERFACE
MIRR 1 MIRR
DFCT
DFCT 2
FOK
3
FOK
4
VSS
5
LOCK
MDP 6
SSTP 7
IOVSS1 8
SFDR 9
SRDR 10
11
TFDR PWM
GENERATOR
TRDR 12
FFDR 13
FRDR 14
IOVDD1 15
AVDD0 16 SERVO
DSP
AVSS0 17
18
NC
A/D
CONVERTER
E 19
F 20 TE
21
TEI
TEO 22
FEI 23
FEO 24
FE
VC 25 VC
26
A
SUM
B 27
C 28
D 29
NC 30
ATT
31 32 33 34 35 36
42 42
IC101 CXD3059AR
115 114 112 111 110 109 108 107 106 105 104 103 102 101 100
113
CPU INTERFACE
D/A
COVERTER
SERVO
DIGITAL
AUTO
CLV
SEQUENCER
D/A
INTERFACE
ERROR 32k
CORRECTOR RAM
EFM
DEMODULATOR
SUB CODE
PROCESSOR
ASYNMMETRY DIGITAL
CORRECTOR PLL
EQ AMP
APC
37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53
99 98 97 96 95 94 93 92 91
90 RMUT
89 IOVDD0
88 NC
87 AVDD2
86 AOUT2
LPF
85 VREFR
84 AVSS2
83 AVSS1
82 VREFL
LPF
81 AOUT1
80 AVDD1
79 XVDD
CLOCK 78 XTAI
GENERATOR
77 XTAO
76 XVSS
75 NC
74 IOVSS2
73 TES1
72 TEST
DIGITAL OUT 71 DOUT
70 IOVDD2
69 EMPHI
68 EMPH
67 VDD
66 BCK
65 PCMD
SELECTOR
64 VSS
63 LRCK
DC/DC
62 LRCKI
CONVERTER
61 PCMDI
54 55 56 57 58 59 60