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2) Fan1, Fan2 or Fan3 stopped detection circuit
MAIN C.B.A. (CIRCUIT BOARD DG)
BASE C.B.A. (CIRCUIT BOARD A)
BASE C.B.A. (CIRCUIT BOARD A)
SOS: over +15V
SOS: Fan stop
(Over v15V) Detect)
PDG1
PA
16
15
15
93
SOS2
IC1102
(MAIN MICROCONTROLLER)
POWER C.B.A. (CIRCUIT BOARD P)
MAIN C.B.A. (CIRCUIT BOARD DG)
1) SOS2 (over voltage detect) detection circuit
Normal
SOS
Normal
SOS
ATSC+9V
ATSC+5V
TV+9V
TV+3.3V
TV+2.5V
TV+3.3V_L
ATSC+12V
IC1102 (MAIN MICROCONTROLLER)
FAN SOS
61
MAIN C.B.A. (CIRCUIT BOARD DG)
SOS terminal of IC1102 (Main microcontroller)
IC1102 (MAIN MICROCONTROLLER)
IC4200 (CPLD)
IC4265 (VIDEO SIGNAL PROCESS)
GC4U
(Error No. 2) FAN SOS
CW DET(Error No. 6)
61
+12V
DRIVE
(+7V - +12V)
(+7V - +12V)
4
2
IC2809
FAN2
FAN1
FAN3
PA2-1
PA2-2
PA2-3
PA2-5
PA2-6
PA2-4
PA1-1
PA1-2
PA1-3
DRIVE
4
2
IC2808
+9V
REG
2
1
IC2803
IC841
T801
+5V
REG
2
1
IC2802
+9V
REG
2
1
IC2806
+3.3V
REG
2
1
IC2804
+2.5V
REG
2
1
IC2805
DC-DC
CONVERTER
IC2807
PA
16
PDG1
14
14
P802
PA
8
PDG4
16
5
40
110
PDG1
15
(Error No. 1) SOS2
93
14
AC ATOP
89
9
(Error No. 3) DT+9V SENS
108
21
(Error No. 4) +3.3V SENS
63
25
26
(Error No. 8) LAMP DET
27
64
ASIC READY(H) (Error No. 9)
PDG5
1
88
I2C SERIAL DATA4 (Error No. 7)
5
59
I2C SERIAL DATA2 (Error No. 5)
I2C SERIAL DATA2
85
A4
22
26
22
26
1
SHUNT
REG.
3
IC801
9
SWITCHING
CONTROL
POWER
TRANS.
R853
R852
R854
FULL-WAVE
RECTIFIER
(+12V)
2
PC800
(FEEDBACK LOOP)
FEED
BACK
9
1
5
Protection circuit
PT-56DLX75 / PT-61DLX75
52
Summary of Contents for PT-56DLX25
Page 7: ...3 ABOUT LEAD FREE SOLDER PbF 5 PT 56DLX75 PT 61DLX75 ...
Page 64: ...PT 56DLX75 PT 61DLX75 62 ...
Page 76: ...PT 56DLX75 PT 61DLX75 74 ...
Page 82: ...PT 56DLX75 PT 61DLX75 80 ...
Page 85: ...12 EXPLODED VIEWS 12 1 MAIN PARTS SECTION PT 56DLX75 PT 61DLX75 83 ...
Page 86: ...PT 56DLX75 PT 61DLX75 84 ...
Page 87: ...12 2 FRONT AND BASE SECTION PT 56DLX75 PT 61DLX75 85 ...
Page 88: ...12 3 DISPLAY SECTION PT 56DLX75 PT 61DLX75 86 ...
Page 89: ...PT 56DLX75 PT 61DLX75 87 ...
Page 90: ...12 4 SCREEN SECTION PT 56DLX75 PT 61DLX75 88 ...
Page 91: ...PT 56DLX75 PT 61DLX75 89 ...
Page 92: ...12 5 OPTICAL BLOCK SECTION PT 56DLX75 PT 61DLX75 90 ...
Page 93: ...12 6 TV UNIT SECTION PT 56DLX75 PT 61DLX75 91 ...
Page 94: ...12 7 PACKING PARTS AND ACCESSORIES SECTION PT 56DLX75 PT 61DLX75 92 ...