
CHECKING THE POWER P.C.B.
Disconnect all connector cables on the Power P.C.B., then
take out the Power P.C.B. from the Power PCB Mount Metal.
Refer to Power P.C.B. Service Position, Figure 1.
Check the following parts on the Power P.C.B. with the tester.
Solder a jumper between TP1502 and TP1901 on the Power P.C.B.
Replace any defective parts.
Check the following parts with the tester.
Replace any defective parts.
Is there a snap sound of the Relay turning ON?
(Relay: RL1902/RL1903 on the Power P.C.B.)
OK
OK
NG
OK
OK
NG
Check if the voltage at D1940-CATHODE is
13.5 V±1.0 V.
(Use bottom part of Radiation Plate for COLD circuit
as GND.)
Check if the voltage at TP1908 is DC7.0V±0.5 V.
(Use bottom part of Radiation Plate for COLD circuit
as GND.)
Check the other parts on the Power P.C.B.
and replace any defective parts.
NG
NG
Plug in the AC Cord.
Note:
1. The Projection Unit includes the Power P.C.B.
2. Do not turn or adjust VRs (R1324, R1703, R1951).
Do not touch any parts to reduce the risk of
electric shock after the AC Cord has been plugged
in even once. Before checking parts, confirm that
the voltage C1810 is 0V.
If not, discharge C1810 terminals by using a
resistor of 100 ohm/10 W or over for 3 seconds.
CAUTION:
Do not touch any parts to reduce the risk of
electric shock after the AC Cord has been plugged
in even once. Before checking parts, confirm that
the voltage C1810 is 0V.
If not, discharge C1810 terminals by using a
resistor of 100 ohm/10 W or over for 3 seconds.
CAUTION:
Do not touch any parts to reduce the risk of
electric shock after the AC Cord has been plugged
in even once. Before checking parts, confirm that
the voltage C1810 is 0V.
If not, discharge C1810 terminals by using a
resistor of 100 ohm/10 W or over for 3 seconds.
CAUTION:
F1001, F1002, PR1301, PR1302, PR1304, PR1305,
D1001, D1305, D1309, D1310, D1311, D1312, D1313, D1315, D1317, D1403, D1404, D1405, D1406,
D1505, D1519, D1528, D1529, D1530, D1531, D1532, D1533, D1805, D1808, D1931, D1932, D1933, D1940,
Q1303, Q1304, Q1401, Q1503, Q1801, R1005, R1330, R1408, R1409, R1410, R1411, R1511, R1512, R1933
RL1902, RL1903,
R1700, R1701, R1704, R1705
A
B
C
PT-52LCX66-K / PT-56LCX16-K / PT-61LCX66-K
35
Содержание PT-52LCX66-K
Страница 6: ...4 Specifications 6 PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K ...
Страница 8: ...PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 8 ...
Страница 9: ...PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 9 ...
Страница 10: ...5 2 Replacement of Lamp PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 10 ...
Страница 106: ...PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 106 ...
Страница 116: ...PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 116 ...
Страница 179: ...16 Exploded Views Cabinet Section 16 1 MAIN PARTS SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 179 ...
Страница 180: ...PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 180 ...
Страница 181: ...16 2 BASE BODY SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 181 ...
Страница 182: ...16 3 DISPLAY SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 182 ...
Страница 183: ...PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 183 ...
Страница 184: ...16 4 SCREEN SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 184 ...
Страница 185: ...PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 185 ...
Страница 186: ...16 5 PROJECTION SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 186 ...
Страница 187: ...16 6 TV UNIT SECTION 1 PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 187 ...
Страница 188: ...16 7 TV UNIT SECTION 2 PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 188 ...
Страница 189: ...16 8 PACKING PARTS AND ACCESSORIES SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 189 ...
Страница 207: ...18 Exploaded Views Projection Section 18 1 PROJECTION SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 207 ...
Страница 208: ...18 2 OPTICAL UNIT SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 208 ...
Страница 209: ...18 3 OPTICAL IRIS UNIT SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 209 ...
Страница 210: ...18 4 POWER UNIT SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 210 ...
Страница 211: ...18 5 PACKING PARTS SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 211 ...