LC-15PX1U
20
TROUBLE SHOOTING TABLE
No picture and sound
Chec
k all the settings on the microprocessor's adjust process men
u.
Fluorescent light in tr
oub
le
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
YES
YES
NO
Does the load side k
eep
nor
mal circuits when F3701
and F3702 are disconnected?
Are F3701, F3702, F6501 and
F6502 nor
mal?
Do Q6502 and Q6505 k
eep
nor
mal circuits?
Chec
k Q6502, Q6505 and
their per
ipher
al circuits
.
Chec
k S4053 and the
connecting cab
les
.
Chec
k the connecting cab
les
and the per
ipher
al circuits of
J3701.
Are pins (10) and (11) of
IC1201 "H"?
Are the oscillation w
a
v
es from
the pr
imar
y sides of
T6500
thr
u T6502
nor
mal?
Chec
k and replace the
fluorescent light.
Chec
k the connecting cab
les
and the per
ipher
al circuits of
Q6500 thr
u Q6505.
Chec
k that line
, IC1201 and
their per
ipher
al circuits
.
Are +35V
, +9V
, +5V and -12V
on the secondar
y side output
at T701
nor
mal?
Are pins (14) of IC702 thr
u
IC707 nor
mal? (1.35V
-2.05V)
Chec
k the load side
.
Do Q716, S4053 and the
per
ipher
al circuits on the
pr
imar
y side of
T701 k
eep
nor
mal circuits?
Replace F3701 and F3702.
Are F3701 and F3702
nor
mal?
Summary of Contents for LC-15PX1U
Page 27: ...LC 15PX1U 27 17 16 19 18 15 14 13 12 11 10 INVERTER Unit OPERATION Unit ANALOG Unit ...
Page 30: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 30 OVERALL WIRING DIAGRAM ...
Page 31: ...LC 15PX1U 31 17 16 19 18 15 14 13 12 11 10 ...
Page 33: ...33 6 5 4 3 2 1 A B C D E F G H LC 15PX1U SCHEMATIC DIAGRAM Ë OPERATION Unit ...
Page 34: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 34 ËMAIN Unit 1 14 ...
Page 35: ...LC 15PX1U 35 17 16 19 18 15 14 13 12 11 10 ...
Page 36: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 36 ËMAIN Unit 2 14 ...
Page 37: ...LC 15PX1U 37 17 16 19 18 15 14 13 12 11 10 ...
Page 38: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 38 ËMAIN Unit 3 14 ...
Page 39: ...LC 15PX1U 39 17 16 19 18 15 14 13 12 11 10 ...
Page 40: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 40 ËMAIN Unit 4 14 ...
Page 41: ...LC 15PX1U 41 17 16 19 18 15 14 13 12 11 10 ...
Page 42: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 42 ËMAIN Unit 5 14 ...
Page 43: ...LC 15PX1U 43 17 16 19 18 15 14 13 12 11 10 ...
Page 44: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 44 ËMAIN Unit 6 14 ...
Page 45: ...LC 15PX1U 45 17 16 19 18 15 14 13 12 11 10 ...
Page 46: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 46 ËMAIN Unit 7 14 ...
Page 47: ...LC 15PX1U 47 17 16 19 18 15 14 13 12 11 10 ...
Page 48: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 48 ËMAIN Unit 8 14 ...
Page 49: ...LC 15PX1U 49 17 16 19 18 15 14 13 12 11 10 ...
Page 50: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 50 ËMAIN Unit 9 14 ...
Page 51: ...LC 15PX1U 51 17 16 19 18 15 14 13 12 11 10 ...
Page 52: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 52 ËMAIN Unit 10 14 ...
Page 53: ...LC 15PX1U 53 17 16 19 18 15 14 13 12 11 10 ...
Page 54: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 54 ËMAIN Unit 11 14 ...
Page 55: ...LC 15PX1U 55 17 16 19 18 15 14 13 12 11 10 ...
Page 56: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 56 ËMAIN Unit 12 14 ...
Page 57: ...LC 15PX1U 57 17 16 19 18 15 14 13 12 11 10 ...
Page 58: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 58 ËMAIN Unit 13 14 ...
Page 59: ...LC 15PX1U 59 17 16 19 18 15 14 13 12 11 10 ...
Page 60: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 60 ËMAIN Unit 14 14 ...
Page 61: ...LC 15PX1U 61 17 16 19 18 15 14 13 12 11 10 ...
Page 62: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 62 ËANALOG Unit 1 4 ...
Page 63: ...LC 15PX1U 63 17 16 19 18 15 14 13 12 11 10 ...
Page 64: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 64 ËANALOG Unit 2 4 ...
Page 65: ...LC 15PX1U 65 17 16 19 18 15 14 13 12 11 10 ...
Page 66: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 66 ËANALOG Unit 3 4 ...
Page 67: ...LC 15PX1U 67 17 16 19 18 15 14 13 12 11 10 ...
Page 68: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 68 ËANALOG Unit 4 4 ...
Page 69: ...LC 15PX1U 69 17 16 19 18 15 14 13 12 11 10 ...
Page 70: ...70 6 5 4 3 2 1 A B C D E F G H LC 15PX1U ËR C LED Unit ...
Page 71: ...71 6 5 4 3 2 1 A B C D E F G H LC 15PX1U ËCARD LED Unit ...
Page 72: ...72 6 5 4 3 2 1 A B C D E F G H LC 15PX1U ËCARD DETECT Unit ...
Page 73: ...73 6 5 4 3 2 1 A B C D E F G H LC 15PX1U ËINVERTER Unit ...
Page 78: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 78 ANALOG Unit Side A ...
Page 79: ...LC 15PX1U 79 17 16 19 18 15 14 13 12 11 10 ...
Page 82: ...82 6 5 4 3 2 1 A B C D E F G H LC 15PX1U INVERTER Unit Side A ...