Panasonic PT-56DLX25 Service Manual page 66

PT-56DLX75 / PT-61DLX75
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
12 30V
ERROR VOLT. S
2 TP30
DETECTION
5
13
TPN20
OVER CURRENT
-16V
DETECTION
14
7 15
16V
TPA20
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
(LAMP ON (H))
(LAMP DET(ON(L)/SOS(H))
ZERO CURRENT
DETECT COMP.
CURRENT COMP.
LOGIC
CONTROL
DRIVE
Q802
7
BASE C.B.A. (CIRCUIT BOARD A)
12V 30V 5V TV 9V TV
TP033 TP032 TP039 TP040
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 TP011
+3.3V
4 5
REG.
IC2806 (+9V REG.)
3.3V
REG.
2 4
5
3.3V
IC2804 (+3.3V REG.)
TP002
LAMP
REG.
1 2
4
2.5V
IC2805 (+2.5V REG.)
TP004
PA6-1 1 REG. 2
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 LIMITER 15
VCC
CONSTANT
13
VOLTAGE
CONTROL
64
DIGITAL TUNER C.B.A.
MAIN C.B.A. (CIRCUIT BOARD DG)
(CIRCUIT BOARD DT)
TP1166 TP1161 TP1163 TP1165
TP1168 TP1167 TP1162 TP1164
PA16-17 PDG1-17 PDG2-8 DT12-8
PA16-21 PDG1-21 PDG2-(51-53) DT12-(51-53)
PA16-19 PDG1-19 PDG2-54,57 DT12-54,57
PA16-22 PDG1-22 +9V
PA16-20 PDG1-20 +5V
PA16-25,26 PDG1-25,26 +3.3V
PA16-29 PDG1-29 +2.5V
OPERATION C.B.A.
PA16-12 PDG1-12 STBY+3.3V
PA16-9 PDG1-9
PA16-7 PDG1-7 PGD3-6 P6701-6
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
TO/FROM
PA16-10 PDG1-10 LOW+B SW ON(H)
SYSTEM CONTROL
FAN SOS
BLOCK DIAGRAM
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
FAN 2
(on the Lamp)
(+7V ~ +12V)
PA2-1
PA2-2
PA2-3
PA2-4
FAN 1
PA2-5
(FAN LOCK(H)) (on the Rear Shield Plate)
PA2-6
FAN 3
(next to the Lamp)
(+7V ~ +12V)
PA1-1
PA1-2
PA1-3
(SOS (OPEN) : OVER 120 ) C
THERMOSTAT
COVER SWITCH C.B.A.
(NEAR THE LAMP)
SW2911
PA5-1
COVER SW
PA5-2
PA5-3 P2912-1
PA5-4 P2912-2
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 TP6053 TP6049
ATSC+12V
PL2-1
-16V
PL2-7
+16V
TP6059 TP6060 TP6058
PA7-7 PL4-7
PA7-9 PL4-9
PA7-(1-3) PL4-(1-3)
IC6013 (+2.5V REG.)
TP6070 TP6075
1 REG. 2
4
IC6008 (+1.8V REG.)
TP6066 TP6071
2 REG. 4
5
POWER SUPPLY BLOCK DIAGRAM
DT+30V
DT+9V
DT+5V
STBY+3.3V
+5V
+3.3V
+5V
+12V
+3.3V
+2.5V
+1.8 V
PT-56DLX75/PT-61DLX75