Sony SCD-XA9000ES Service Manual page 70

SCD-XA9000ES
• Waveforms
– MOTHER Board – – LINK Board –
qj IC303 qf (QA) ra IC1903 qd (XOUT)
3.4 Vp-p
178 ns
qk IC303 qd (QB) rs IC1902 oj (X2/CLKIN)
3.4 Vp-p
355 ns
ql IC302 2
3.4 Vp-p
88 ns
– DISPLAY Board –
ta IC801 t; (OSCO)
3.6 Vp-p
100 ns 500 ns
ts IC803 es (XTAL)
750 mVp-p
50 ns 124.5 ns
• IC Block Diagrams
– RF Board –
IC001 CXD1881AR-2
64 63 62 61 60 59
2.4 Vp-p
INPUT
SEL ATT
4
DVDRFP 1
MUX ATT
DVDRFN 2
2
INPUT
IMPEDANCE
SEL
BUFFER
4.8 Vp-p
COMPARATOR
A2 3
B2 4
GCA EQ
C2 5
D2 6
3 3
FROM FROM
VC
S-PORT S-PORT
CP 7
CN 8
D
D 9
C
C 10
GCA
B
B 11
A
A 12
3
FROM
MUX
S-PORT
CD D 13
CD C 14
GCA
W/LPF
CD B 15
CD A 16
3
CD/DVD FROM
S-PORT
–
GCA
+
GCA
3 4
FROM FROM
S-PORT S-PORT
VCI FOR SERVO INPUT
VC = VPB/2
DUAL APC
LD H/L
FROM S-PORT
17 18 19 20 21 22
70 70
58 57 56 55 54
OUTPUT
FULL WAVE
INHIBIT
RECTIFER
PROGRAMMABLE
FROM S-PORT
EQUALIZER
INPUT
AGC
BIAS FILTER
DIFFERENTIATOR
2
INPUT
IMPEDANCE
SEL AGCO
+
CLAMP &
– ENVELOPE
+
2
LEVEL
–
SIGDET
DAC
PHASE
– –
DETECTOR
+
+
PHASE
DETECTOR
TOPHOLD
–
OFFSET
+ CANSEL
TOPHOLD
4
FROM
S-PORT
A+D
–
OFFSET
LPF
+
+ CANSEL
GCA
+
4 5
FROM
+ FROM
S-PORT S-PORT
+
B+C
OFFSET
MUX LPF SUB
CANSEL
6
CD/DVD CP/CN
CEFDB FROM
LOW
S-PORT
IMPEDANCE
B+D
+
OFFSET
LPF
+
+ CANSEL
+
5
SUM FROM
AMP S-PORT
+
HOLDEN
+
A+C
BCA
TOP
DET
HOLD
2
FROM
DAC
S-PORT
HYSTERESISTER
& OFFSET
FROM S-PORT
INPUT GAIN
APC SEL
FROM S-PORT
DVD/CD 2 IMPEDANCE
MIRR
FROM S-PORT
COMPARATOR
PEAK/BOTTOM
INTERNAL
HOLD
FDGHG
23 24 25 26 27 28 29 30
53 52 51 50 49
FAST ATTACK
AGC
HOLD
AGC CHARGE
PUMP
48 SDEN
CONTROL
SERIAL
47 SDATA
SIGNALS
PORT
TO EACH 46 SCLK
REGISTER
BLOCK
45 V33
V33 FOR
OUTPUT
3
BUFFER
LPF ATT
CE ATT 44 LCP
POL SEL
CEPOL 43 LCN
BUFFER
PI
FE
TE
MNTR
CE 42 MNTR
CONTROL
V25
V125
V25/3
GCA GCA 41 CE
GCA GCA 40 FE
TE
GCA GCA 39 TE
RST
3
FROM
S-PORT
38 PI
FOR SERVO PH
OUTPUT
37 V25
V25/2
SEL 36 V125
35 TPH
COMPA-
RATOR
–
+ SEL 34 DFT
33 LINK
LINKEN
BOTTOM
INPUT
AGCO
ENVELOPE
2
SINK CURRENT
2
FROM S-PORT
PH
INPUT
BUFFER
MUX
31 32