Sony MHC-RG270 Service Manual page 52

HCD-GX355/GX555/RG270/RG475/RG575
• Waveforms
– CD Board – (Except MX model)
IC101 yd (LRCK) IC101 yh (BCK)
qa 2
4.4 Vp-p
22.8 µ s
1 V/DIV, 10 µ s/DIV
IC101 yh (BCK) IC101 uj (XTAO)
qs 3
4.5 Vp-p
472 ns
1 V/DIV, 200 ns/DIV
IC101 uj (XTAO) IC101 ra (RFACO)
qd 4
4.5 Vp-p
59 ns
1 V/DIV, 20 ns/DIV
IC101 ra (RFACO)
qf
– MAIN Board –
IC901 qa
wa
(XCOUT (32.768KHZ))
Approx.
800 mVp-p
0.2 V/DIV, 0.5 µ s/DIV
– BD Board – (MX model only)
IC101 yd (LRCK) IC901 qd (XOUT (16MHZ))
1 ws
4.4 Vp-p
22.8 µ s
1 V/DIV, 10 µ s/DIV
HCD-GX355/GX555/RG270/RG475/RG575
Q201 (Collector)
wd
(REC mode)
4.5 Vp-p
17.2 µ s
472 ns
500 mV/DIV, 10 µ s/DIV
1 V/DIV, 200 ns/DIV
– CD-G Board –
IC1001 y; (XO1)
qa
4.5 Vp-p
59 ns
1 V/DIV, 20 ns/DIV
70 ns
2 V/DIV, 50 ns/DIV
IC1001 4 (SBSY)
qs
(CD-G play mode)
Approx.
800 mVp-p
0.2 V/DIV, 0.5 µ s/DIV
13.4 ms
2 V/DIV, 5 ms/DIV
– PANEL Board –
IC601 4 (X2)
ea
2.8 Vp-p
30.6 µ s
1 V/DIV, 10 µ s/DIV
236 ns
1 V/DIV, 100 ns/DIV
1Vp-p
62.2 ns
500 mV/DIV, 20 ns/DIV
• IC Block Diagrams
– CD Board –
IC101 CXD3059AR
120 119 118 117
17.6 Vp-p
SERVO
INTERFACE
MIRR 1 MIRR
DFCT
DFCT 2
FOK
FOK 3
VSS 4
LOCK 5
6
MDP
7
SSTP
6.7 Vp-p
IOVSS1 8
SFDR 9
10
SRDR
TFDR 11 PWM
GENERATOR
TRDR 12
FFDR 13
FRDR 14
15
IOVDD1
16
AVDD0 SERVO
DSP
AVSS0 17
NC 18
A/D
5.1 Vp-p
CONVERTER
E 19
20 TE
F
TEI 21
TEO 22
FEI 23
FEO 24
FE
VC 25 VC
A 26
27 SUM
B
C 28
D 29
30
NC
3.4 Vp-p
ATT
31 32 33 34 35
50 50
116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99
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
36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53
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