1-8-2
SC_2
LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON
THE FOLLOWING PAGES:
1.
CAUTION:
FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME
TYPE_A,_V FUSE.
ATTENTION:
UTILISER UN FUSIBLE DE RECHANGE DE MÊME TYPE DE_A,_V.
2.
CAUTION:
Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F601) is blown, first check to see that all components in the power supply circuit are not defective
before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the
power supply circuit to fail.
3.
Note:
(1) Do not use the part number shown on the drawings for ordering. The correct part number is shown in the parts
list, and may be slightly different or amended since the drawings were prepared.
(2) To maintain original function and reliability of repaired units, use only original replacement parts which are listed
with their part numbers in the parts list section of the service manual.
4. Wire Connectors
(1) Prefix symbol "CN" means "connector" (can disconnect and reconnect).
(2) Prefix symbol "CL" means "wire-solder holes of the PCB" (wire is soldered directly).
5. Note: Mark "
•
" is a leadless (chip) component.
6. Mode: SP/REC
7. Voltage indications for PLAY and REC modes on the schematics are as shown below:
8. How to read converged lines
9. Test Point Information
2
3
1
5.0
(2.5)
PLAY mode
REC mode
5.0
The same voltage for
both PLAY & REC modes
Indicates that the voltage
is not consistent here.
Unit: Volts
3
2
1
A
B
C
D
1-B1
1-D3
AREA D3
AREA B1
1-D3
Distinction Area
Line Number
(1 to 3 digits)
Examples:
1. "1-D3" means that line number "1" goes to area "D3".
2. "1-B1" means that line number "1" goes to area "B1".
: Indicates a test point with a jumper wire across a hole in the PCB.
: Used to indicate a test point with a component lead on foil side.
: Used to indicate a test point with no test pin.
: Used to indicate a test point with a test pin.
Summary of Contents for EWC1303A
Page 16: ...1 5 2 T5553DC S 1 1 REAR CABINET S 1 S 2 Fig 1 Fig 2 1 REAR CABINET S 1 S 2 S 1 S 1 S 1 ...
Page 18: ...1 5 4 T5553DC Fig 4 S 8 S 8 S 8 S 8 ANODE CAP 5 CRT CRT CBA ...
Page 55: ...1 14 3 T5553PEX Packing X3 X4 X2 TAPE X1 X7 X5 S2 S6 S3 S1 S4 FRONT S15 ...
Page 67: ...EWC1303A T5553UD 2004 01 20 ...