Sony HT-CT770, Руководство по обслуживанию

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HT-CT770
HT-CT770
46 46
• Waveforms
– HDMI Board – – MAIN Board –
• IC Block Diagrams
– HDMI Board –
IC3002 MM3411A50NRE
IC3005, 3006 BD00IC0WEFJ-E2 IC3007 MM1839A50NRE
VOUT 5
NC 4
CE 3
GND 2
VDD 1
+
VOLTAGE
REFERENCE
CURRENT
LIMIT
BIAS
5 7 8
2 1 3
VOUT
FB
GND
4
N.C.
VCC N.C.
6
N.C. EN
+
+
SOFT
START
OVER CURRENT
PROTECT
THERMAL
SHUTDOWN
VOUT 4
CONT 1
GND 2
NC 3
VIN 5
+
–
VOLTAGE
REFERENCE
REGULATOR
CURRENT
LIMIT
THERMAL
SHUTDOWN
BIAS
– MAIN Board –
IC1003 PST8429UL
IC1008 BD00IC0WEFJ-E2
5 7 8
2 1 3
VOUT
FB
GND
4
N.C.
VCC N.C.
6
N.C. EN
+
+
SOFT
START
OVER CURRENT
PROTECT
THERMAL
SHUTDOWN
GND 1
VDD 2
+
–
VREF
OUT 4
CD 3
w;
IC1002
qa
(Xout)
1 V/DIV, 100 ns/DIV
125 ns
2.8 Vp-p
qa
IC3705
1
(BOOT)
5 V/DIV, 2 P s/DIV
3 P s
21.6 Vp-p
ql
IC2012
1
(BST)
10 V/DIV, 2 P s/DIV
3
P
s
22 Vp-p
wa
IC1009
1
(BOOT)
10 V/DIV, 2
P
s/DIV
3 P s
21.2 Vp-p
7.7 P s
12 Vp-p
ea
Q805 (BASE)
5 V/DIV, 5 P s/DIV
20.8 P s
3.8 Vp-p
qs
IC2005
qk
(LRCK)
1 V/DIV, 10 P s/DIV
qd
IC2005
ql
(BCK)
1 V/DIV, 200 ns/DIV
328 ns
4.1 Vp-p
qf
IC2005
w;
(SCKO)
1 V/DIV, 20 ns/DIV
40 ns
3.9 Vp-p
qg
IC2005
r;
(XTO)
1 V/DIV, 20 ns/DIV
40 ns
2.7 Vp-p
qj
IC2009
y;
(BCLK_OUT)
1 V/DIV, 200 ns/DIV
328 ns
4.4 Vp-p
20.8 P s
4.3 Vp-p
qk
IC2009
ya
(LRCLK_OUT)
1 V/DIV, 10 P s/DIV
1
IC3009
ud
(XTALOUT)
1 V/DIV, 20 ns/DIV
37.5 ns
4.1 Vp-p
2
IC3009
oa
(MCLK)
1 V/DIV, 50 ns/DIV
59 ns
3.9 Vp-p
qh
IC2009
qd
(XTAL)
1 V/DIV, 20 ns/DIV
41 ns
3.8 Vp-p
– DISPLAY Board –