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POWER SUPPLY BLOCK DIAGRAM
POWER C.B.A. (CIRCUIT BOARD P)
F801
6.3A 125V LF801A
LF802
D802
C813
P803-1
AC LINE
AC LINE
FULL-WAVE
AC IN
P803-3
FILTER
FILTER
RETIFIER
R800
RUSH
RL803
CURRENT
PROTECTOR
Q842
T802
2
9
TP54
7
3
6
PFC (POWER FACTOR CORRECTION) CIRCUIT <DC+330V OUTPUT FOR BALLAST>
D803
FULL-WAVE
RETIFIER
2
12
L804
R801
RUSH
RL802
CURRENT
PROTECTOR
6
5
IC802
Q843
(SWITCHING CONTROL)
8
VCC
5
+1.5V
4
3
MULIPLIER
ERROR
AMP
1
+2.5V
T801
12V
TP12
(+12V)
1
9
(+30V)
IC801 (SWITCHING CONTROL)
TPG1
(-16V)
GND
(+16 V)
7
VCC
10
(STBY+7V)
(AC SW ON(H))
OVER VOLTAGE
4
PROTECTION
(AC STOP(L))
9
5
11
(LOW+B SW ON(H))
ZERO CURR.
1
DRIVE
DETECTION
D
CONTROL
30V
12
ERROR VOLT.
S
2
TP30
DETECTION
5
13
TPN20
OVER CURRENT
-16V
DETECTION
14
7
15
TPA20
16V
8
16
PC800
FEED BACK
IC841
(SHUNT REGULATOR)
3
1
2
V-REF(2.495V)
AC SW
TP1
STANDBY POWER CIRCUIT
STB 7V
STB 7V
TP53
TPS7
D851-D854
FULL-WAVE
RETIFIER
D861
LOWB SW
TP2
BALLAST C.B.A.
B1
(+330V)
P801-1
LAMP POWER
P801-4
CIRCUIT
B2
ZERO CURRENT
DETECT COMP.
CURRENT COMP.
LOGIC
CONTROL
DRIVE
Q802
7
BASE C.B.A. (CIRCUIT BOARD A)
12V
30V
TP033
TP032
P802-(22-26)
PA8-(22-26)
P802-32,33
PA8-32,33
P802-18,19
PA8-18,19
P802-12,13
PA8-12,13
P802-4
PA8-4
P802-6
PA8-6
P802-3
PA8-3
P802-5
PA8-5
TP034
-16V
TP035
16V
TP037
LOWB SW
Q2804,
IC2808 (FAN DRIVE)
Q2806
SW
2
REG.
4
5
Q2801
IC2809 (FAN DRIVE)
2
REG.
4
5
Q2802
9V
IC2803 (+9V REG.)
TP001
1
REG.
2
4
5V
IC2802 (+5V REG.)
TP003
1
REG.
2
Q2803,
Q2805
4
SW
IC2801
STB 7V
TP038
+3.3V
4
5
REG.
IC2806 (+9V REG.)
2
REG.
4
5
3.3V
IC2804 (+3.3V REG.)
TP002
LAMP
1
REG.
2
4
2.5V
IC2805 (+2.5V REG.)
TP004
(LAMP ON (H))
PA6-1
1
REG.
2
(LAMP DET(ON(L)/SOS(H))
PA6-3
4
DC/DC CONVERTER (STEP-DOWN CHOPPER SYSTEM)
IC2807 (DC-DC CONVERTER)
3
1
4
2
5
22
SWITCHING
6
23
24
25
OVER CURR.
16
19
VCC
LIMITER
15
CONSTANT
13
VOLTAGE
CONTROL
MAIN C.B.A.
(CIRCUIT BOARD DG)
5V TV
9V TV
TP1166
TP1161
TP1163
TP1165
TP039
TP040
TP1168
TP1167
TP1162
TP1164
PA16-17
PDG1-17
PA16-21
PDG1-21
PA16-19
PDG1-19
PA16-22
PDG1-22
PA16-20
PDG1-20
PA16-25,26
PDG1-25,26
PA16-29
PDG1-29
PA16-12
PDG1-12
PA16-9
PDG1-9
PA16-7
PDG1-7
PA16-16
PDG1-16
PA16-8
PDG1-8
PA16-15
PDG1-15
PA16-14
PDG1-14
AC STOP(L)
PA16-65
PDG1-65
AC SW ON(H)
PA16-64
PDG1-64
FAN CONTROL
PA16-10
PDG1-10
LOW+B SW ON(H)
FAN SOS
SOS 2
LAMP ON(H)
LAMP DET (ON(L)/SOS(H))
LAMP COVER OPEN(L)
FRONT JACK C.B.A.
PA10-1
P3903-1
STBY+3.3V
(+7V ~ +12V)
(FAN LOCK(H))
(+7V ~ +12V)
(SOS (OPEN) : OVER 120 ) C
THERMOSTAT
(NEAR THE LAMP)
PA5-1
TP011
PA5-2
PA5-3
PA5-4
3.3V
TP036
AC SW
COLOR WHEEL C.B.A.(CIRCUIT BOARD CW)
PCW1-1
PCW1-7
(OVER VOLTAGE (+15V) DETECT)
DMD DRIVE C.B.A.(CIRCUIT BOARD L)
TV+3.3V
TV+5V
TV+9V
ATSC+12V
PL2-1
-16V
PL2-7
+16V
PA7-7
PL4-7
PA7-9
PL4-9
PA7-(1-3)
PL4-(1-3)
DIGITAL TUNER C.B.A.
(CIRCUIT BOARD DT)
PDG2-8
DT12-8
DT+30V
PDG2-(51-53)
DT12-(51-53)
DT+9V
PDG2-54,57
DT12-54,57
DT+5V
+9V
+5V
+3.3V
+2.5V
OPERATION C.B.A.
STBY+3.3V
PGD3-6
P6701-6
STBY+3.3V
TO/FROM
SYSTEM CONTROL
BLOCK DIAGRAM
FAN 2
(on the Lamp)
PA2-1
PA2-2
PA2-3
PA2-4
FAN 1
PA2-5
(on the Rear Shield Plate)
PA2-6
FAN 3
(next to the Lamp)
PA1-1
PA1-2
PA1-3
COVER SWITCH C.B.A.
SW2911
COVER SW
P2912-1
P2912-2
+5V
+3.3V
TP6053
TP6049
TP6059
TP6060 TP6058
+5V
+12V
+3.3V
IC6013 (+2.5V REG.)
TP6070 TP6075
REG.
+2.5V
1
2
4
IC6008 (+1.8V REG.)
TP6066 TP6071
2
REG.
4
+1.8 V
5
POWER SUPPLY BLOCK DIAGRAM
PT-56DLX75/PT-61DLX75
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