Service manual

DV-L70S
DV-L70BL
DV-L70W
44
9-21. IC2102 TK15400
12
1
2
11
5kΩ 5kΩ
1.5kΩ
100kΩ
75Ω
75Ω
33µF
33µF
4.7µF
33µF
+
+
+
+
75Ω
10
5
9
5kΩ 5kΩ
1.5kΩ
75Ω
75Ω
33µF
33µF
+
+
8
4.7µF
+
75Ω
6
75Ω
GND
75Ω
33µF
+
Y-INPUT
Standby
C-Input
Clamp
1.25V
BIAS
2.0V
Reference
&
Standby
Logic
Clamp
1.25V
8dB
75
Ω
DRIVER
8dB
75
Ω
DRIVER
8dB
75
Ω
DRIVER
Y-OUTPUT
Vout 2.0Vp-p
CVBS-OUTPUT
Vout 2.0Vp-p
C-OUTPUT
Vout 1.3Vp-p
Vcc
4 73
Vcc=5.0V
9-22. IC3200 IX1625GE
Pin No. I/O Terminal name Operation function Remarks
1–NC
2 O BLK Blanking signal output To LCD decoder IC
3
4–NC
5 I HSYNC Horizontal sync signal input From LCD decoder ICFrom LCD decoder IC
6 I VSYNC Vertical sync signal input From LCD decoder IC
7 I SCLK Serial clock input From DVD system computer
8 O SOUT Serial data output To DVD system computer
9 I SIN Serial data input From DVD system computer
10 I SYNC Composite sync signal input From LCD decoder IC
11 I PLLD TVPLL lock signal input From TV tuner
12 O PLCS TVPLL load EN output To TV tuner
13 O PCLK Clock output for inner communication To TV tuner, E
2
PROM, and DAC IC
14 O POUT Data output for inner communication To TV tuner, E
2
PROM, and DAC IC
15 I SAFE Not used. "H"
16 O RGB Not used. "L"
17 O MRDY READY output From DVD system computer
18 O POW Power on/off control output To DCDC converter
19 I PIN Data input for inner communication From E
2
PROM
20 O K3 Not used.
21 – NC
22 O K2 Key matrix output2 To operation panel
23
24 O NC
25 I K1 Key matrix output1
26 I K0 Key matrix output0
27 I S3 Key matrix input3
28 I S2 Key matrix input2
29 I S1 Key matrix input1
30 I S0 Key matrix input0
• Block Diagram