Panasonic PT-56DLX25 Service Manual page 56

PT-56DLX75 / PT-61DLX75
7) Abnormal Temperature detection circuit
IC1102 (MAIN MICROCONTROLLER)
SERIAL DATA4
SOS: over 75 C or under -24 C
MAIN C.B.A. (CIRCUIT BOARD DG)
8) Abnormal Lamp detection circuit
LAMP ENABLE
IC1102 (MAIN MICROCONTROLLER)
LAMP ON(L)
LAMP STATUS
MAIN C.B.A. (CIRCUIT BOARD DG)
9) IC6004 (DMD Control) ASIC READY is incomplete detection circuit
IC1102 (MAIN MICROCONTROLLER)
ASIC READY (H)
59 5
Q1108 Q1109
360Hz
3V
OFF ON
Q1110
18
27
SOS Normal
SOS: Lamp does not light up
Normal: Lamp ON
Normal
SOS
88
SOS: Incomplete (Low)
Normal: ready high(+3.3V)
MAIN C.B.A. (CIRCUIT BOARD DG)
5 4
DMD DRIVE C.B.A.
(CIRCUIT BOARD L)
BASE C.B.A. (CIRCUIT BOARD A)
65 65
64 64
DC+330V
GND(HOT)
POWER C.B.A. (CIRCUIT BOARD P)
1 1
54
IC6904
4 1 SERIAL DATA4
Temp too high -- ALERT
Temp too low -- ALERT
COLOR WHEEL C.B.A. (CIRCUIT BOARD CW)
1 1
2 2
3 3
DC+330V
1 1
GND(HOT)
4 3
BALLAST C.B.A.
IC6006
IC6004
(BUFFER)
ASIC READY (H)
12 8 AD2
DMD DRIVE C.B.A. (CIRCUIT BOARD L)