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HOT P POWER SUPPLY
D417 395V PR401 F_5A_250V 12 11
COLD
Vdat OVER VOLTAGE DETECTION(100V 25V)
10 9 D539 3 6 4 D531 73V
+
IC512
Q527 ERROR DET (Vda)
Vda75V
D540
T401
LINE FILTER L404 L405
D419 C446
Q412
OSC
D544
D545 3
P12
K
TO SS12
Vdat Vdat +15V STB12V STB_PS
1
1 2
D401
-
RECTIFIER
8
7
6
5
4
3
2
1
D420
C555
R670 2 D569 D570
A
+
Q404,Q406 R405,D415
9 10 11 12 13 14 15 16
Q408
OSC 7 8 D506
R665 R676 R674 R631 Vdat
1 2 3
4 8 10
OVER VOLTAGE PROTECTION (490V 80V)
Q413
OSC 2 D536
15V
D571
15
5 1 D572
Q520
Q517
Q409
OSC 0.1 SW
C469
16
T404
9 10 4 5 3 6 2
T402
PR402 R441 R442 R445 8 7
MOS DRIVE
Q401
6 5
CURR DET
R472 R475 R479 R480 27.4kx6
RESONANCE CONVERTER (120-145KHz)
D549 R579
P_OUT
P_OUT
VDD2
340kx6
SW
CRT_ON
Q402
D407
PFC
CURR COMP
IC520
POWER CONTROL (Vlow)
VDD1
L403
IC406
VCC
R447 R470
D579 12 13 15 16 BUFF
Q564
BUFF
+ FB
P11
1 3
TO SS11
Vsus GND
1
2
3
4
4
2
Vref 5V
Q565
6
Q566
D602 R455
D521
PR509
D535
P2
TO SC2
Vsus GND
Q536
Q509
VlOW DET 1 R661 2 Vlow 3
1 3
Q420 Q407
TO AC CORD
P9
LIVE 4 Vref F402 250V 8A NEUTRAL 1 1 2 A K 3 F401 250V 8A 1 2
R444 BUFF R443 PFC 3
P5
1 2
TO PA5
+15Vs(S) +15Vc +15Vs(S) +15Vc +15Vs(S) STBY5V F_STBY_ON F_STB F_STB F_STB ALL_OFF AC_GOOD +5Vc
IC411
ERROR DET
D418
Q422
Q541 Q507
7 10 T601 2 3 180k x4
REF
PR601
IC508
K
R649
3 4
HOT
COLD
Q540
R650
5 10
Q510
Vlow POWER CIRCUIT
Q508
VlOW DET
5V OUT DETECTION (3V 1.0V)
12 13 15
A
1
4
IC403
PHOTO COUPLER (AC DET)
K
IC511
K REF
IC509
5 4
Vsus 192V
17 16
2
3
IC513
Vda DET
REF
VOLTAGE OUT DETECTION 40V) (60V
R622 R648 R636
18 20
Q530
1 2 3
P6
4
1
RESET
NO USE
+15Vs(S) +15Vs(S) +15Vs(S) F_STBY F_STBY F_STBY
A
RL403
R413 F403 T630mA 250V
IC401
RL401
3 2
Q535 Q525
K Vref
R626
1 2 3 7
RL402
R411
PHOTO COUPLER (PFC_ON/OFF)
Q434
R435
A
3
1 R627
8 9
4 R427 L410 LINE FILTER R420 R415 R410
1
4
1
ON
D522 D523
D701
IC507
PHOTO COUPLER
3 2 3 2
IC505
PHOTO COUPLER
IC506
ERROR DET (Vsus)
A
2 R628
Vsus
P7
1 2 5 6 8 12V ON/OFF 9 10
NO USE
+15Vc +15Vc STBY5V F_STBY_ON ALL_OFF AC_GOOD +5Vc
T410 RCC CONV. (100KHz)
15 9 14 D511 STB_12V
D404
R407
+
D435 RECTIFIER
IC501
POWER MCU
1 VDD VSS XIN XOUT PANEL_ MAIN_ON 24 AC_DET/ 23 F STB H V LOW DET 22 AC_P_DET 21 (FAIL:H) AC_GO_L 20 GO:L 6 ON:H 7 8 ON:L ON:H 9 RESET STB PS Vdat_GO_L STB 5 ON/OFF VSUS DET 19 ON:L F_15V_ON/OFF 18 SOS4_PS 17 ON:L PFC ON/OFF 16 ON:H V LOW ON/OFF 15 VSUS 14 ON/OFF ALL OFF 13 ON:L
13
Q554
P25
1
STB5V 7 5 12 11 D509 2 2
TO D25
+15Vc +15Vc +5Vc +5Vc STBY5V PANEL_MAIN_ON SOS4_PS VDATA_DET
IC502
RESET
3 1
X501 4NHz
IC409
D441
4 7 2 1 2 3 4 4 1 10
4
Q563 Q553
2 5 6 9 11 12 13
IPD
8 7 5 D416 Source Source Source Source Source Drain Control
5V
MAIN RELAY ON
RUSH RELAY ON
IC408
PHOTO COUPLER
10 LOW 15
Q501 Q502
11 MAIN RELAY(H) 12 RUSH RELAY(H)
POWER SOS LED BLINKING : 4TIMES
3
2
Q410 Q411
IC510 IC504
ERROR DET
STB5V ON/OFF 3 2 1
DC-DC CONV.
2 OUT Vcc 1
PR505
Q537 Q521
INV.
Q524
4
1
ECO
5
6 D S 3
7 D S 2
8 D S 1
5
6 D S 3
7 D S 2
8 D S 1
IC412
3 2
Q555
DC/DC CONV. (15V)
D G 4
Q556
DC/DC CONV. (F STB 5V)
D G 4
PHOTO COUPLER
HOT
COLD
Q569
TH-37/42PV70F/P, TH-37/42PX70B/E P-Board Block Diagram
TH-37/42PV70F/P, TH-37/42PX70B/E P-Board Block Diagram