10-1
L2550SC
SCHEMATIC DIAGRAMS / CBA'S AND TEST POINTS
Standard Notes
Many electrical and mechanical parts in this chassis have special characteristics. These characteristics often
pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement
components rated for higher voltage, wattage, etc. Replacement parts that have these special safety
characteristics are identified in this manual and its supplements; electrical components having such features are
identified by the mark “
#
” in the schematic diagram and the parts list. Before replacing any of these components,
read the parts list in this manual carefully. The use of substitute replacement parts that do not have the same
safety characteristics as specified in the parts list may create shock, fire, or other hazards.
Notes:
1. Do not use the part number shown on these drawings for ordering. The correct part number is shown in the
parts list, and may be slightly different or amended since these drawings were prepared.
2. All resistance values are indicated in ohms (K = 10
3
, M = 10
6
).
3. Resistor wattages are 1/4W or 1/6W unless otherwise specified.
4. All capacitance values are indicated in
µ
F (P = 10
-6
µ
F).
5. All voltages are DC voltages unless otherwise specified.
Note of Capacitors:
ML --- Mylar Cap. PP --- Metallized Film Cap. SC --- Semiconductor Cap. L --- Low Leakage type
Temperature Characteristics of Capacitors are noted with the following:
B --- ±10% CH --- 0±60 ppm/°C CSL --- +350~-1000 ppm/°C
Tolerance of Capacitors are noted with the following:
Z --- +80~-20%
Note of Resistors:
CEM --- Cement Res. MTL --- Metal Res. F --- Fuse Res.
Capacitors and transistors are represented by the following symbols.
(Top View)
(Bottom View)
(Bottom View)
Electrolytic Capacitor
+
Transistor or Digital Transistor
NPN Transistor
PNP Transistor
NPN Digital Transistor
PNP Digital Transistor
(Top View)
(Top View)
E C B
E C B
Digital Transistor
CBA Symbols
Schematic Diagram Symbols
E C B
(Top View)
(Top View)
E C B
E C B
Summary of Contents for 6620LDG
Page 17: ...5 3 L2650DC 1 Rear Cabinet S 2 S 1 S 1 S 3 S 1 S 1 Fig D1 2 Tilt Stand Assembly ...
Page 19: ...5 5 L2650DC 7 Main CBA 8 Inverter CBA S 8 S 8 S 8 S 8 S 9 S 9 Fig D3 ...
Page 40: ...10 3 Main 1 6 Schematic Diagram LCD TV Section L2650SCM1 ...
Page 41: ...10 4 L2650SCM2 Main 2 6 Schematic Diagram LCD TV Section ...
Page 42: ...10 5 Main 3 6 Schematic Diagram LCD TV Section L2650SCM3 ...
Page 43: ...10 6 L2650SCM4 Main 4 6 Schematic Diagram LCD TV Section ...
Page 45: ...10 8 L2650SCM5 Main 6 6 Schematic Diagram LCD TV Section ...
Page 46: ...10 9 L2650SCF Function Schematic Diagram LCD TV Section ...
Page 47: ...10 10 L2650SCIR IR Sensor Schematic Diagram LCD TV Section ...
Page 48: ...10 11 L2650SCI Inverter Schematic Diagram LCD TV Section ...
Page 50: ...10 13 L2650SCD2 DVD Main 2 3 Schematic Diagram DVD Section ...
Page 51: ...10 14 L2650SCD3 DVD Main 3 3 Schematic Diagram DVD Section ...
Page 55: ...10 18 Inverter CBA Top View Inverter CBA Bottom View BL2500F01021 ...
