Sanyo HT28745 Service Manual page 59

MODEL HT28745 Chassis No. 28745-00
P/D Board
(Power and Deflection)
AC Smoothing
K6B
1
To Front Board
2
(K6M)
3
IC602
STR-6626
IC602H1
1
To Front Board
(K6F)
D616
2 R
K6L
C613 R615
35EM100T
2SJ
0.18
PE
R487 D486
1/2DJ180K R
C483
FK2200BF
R488
:FK2200D
DJ5.6K
C581
16PM D581 Q582
10LBZA AE
140V
D582
R581
1SS133
DJ150K
R584
R582 DJ150K
R583 10K
Q581
10K R585
2SA1319R
18K
:2SA1319S
:2SA1319T
To DY
L421
R424
2SJ470
C426
1000KK
R481 3900CRD
1/2DJ :1000KK
1B
1 D481 3900CTB
To CRT 200V
C482
Board 2
160EM47CY
HEATER
(K7C)
GND
3
K4C
R480
R497 1/2DJ
2SJ2.2 1B
K4GND1
Flyback Transformer
K4GND2
T402
To CRT
Anode
HV
1
To CRT
FO
J417 J418
2
Board J
JP402
J
SC 4
6
7 3
R413
7SJ
C422
3.9VCA
250GJ
0.47
8 5 R428
LOW 15K
R482
+B AFC DJ56
9
10
HEATER R493 D482
DG39K
R494
11 13 DG47K
C493
100PM
2.2X TP50 R491 TP51 R495
DJ1K 1/6DG12K
— 65 —
TJ7
T601
L621
Switching
Transformer 11 12 D615
R621
10 13 4.7K
C622
25EM R618
9 3300CD 1K
14
C614 D621A D641
400NJ YG901C2-LB EU01Z
0.022EAQ
5 15
L656
J
R604
C609 –15V
2SJ47K 6 16
200EM
R640
680VCC D656
100K
R623
7 17 8.2K D623
C656
R
D695 EM220LBWA
C608
L810
C608A
8 R624
18
1000KK470NH 10K
D624
:1000KK470CRD
C686
:1000KK470CTB
C686A
1000KK
L623 C626
470NH
R616 19 16EM
:1000KK
DJ150 D624H1 3300
D614 470CRD
R612 :1000KK CD
J
L615 470CTB
3 20
J
D613 D627
C641
2 21 1000KK1000CTB
Oscillation
L613 :1000KK1000CRD
L631 D627H1
D631
J
1 35V
22
D617 R619
P DJ2.2K
D652
R
D625H1 C625
C642
EM470
LBWA TJ1
D625
R613 C616 C615
FJ1200BE FJ470BE L625 L628
2SJ
:FJ1200D :FJ470D C628A
0.18
160EM
470VCS
1
R617
DJ3.3K
2
Voltage
3 R641
D612
1/2DJ68K
Feedback
PC123YC2
IC601
3 2
SE140NL
4 1
R642
22K
K6GND2
C633
250KM3300VBW
:250KM3300VBBW
K6GND3
K6GND4
L641
L641A
IC501 LA7846N C644
160EM
Vertical Drive
220XK
C624
160EM
– 470VCS
PUMP UP
+
R503
1FJ1 R512
:1FJ1VFNW 1/6DG5.6K
–15V
D504 V_RAMP+
54 Vpp [V] 18 R513
C505 C513
1/6NF
25EM D513 500KK
5.6K
1000T 0.01A
R502
J VRAMP–
C510 R501
L502 R506 500CK 1/6DG5.6K
J 47GAA
2SJ680
C423 3 1
2 D514 1.3 Vpp [V]
R509
C423
1/6NF
R508 5.6K
C507
250MJ0.2AU 2SJ1.8 R511
L511
:250MJ0.2AT R507 EM220T DJ1B J
C424
:250MJ0.2AP 1/2DJ15
14V_TV
C424
D502 R504 D501 C504
D511
250MJ0.12AU D503 1/2FJ 25EM
2200CD
:250MJ0.12AT 1.1 Vpp [H] 1.5
:250MJ0.12AP
:1/2FJ 9
1.5VFNW D512
17
C411 C508
100GK 29 Vpp [V] Horizontal Drive
1500MH 0.47P
3600NP
L461
C405
16EM2200MY
L411
L464 C415
L417 L416
ZZ0122 3000KK R438 L414
820NH Q402
J
TXXAVB011
C412 R409
(2SC5857) T401
2SJ8.2
1500MH D411
5100AN 3 2
C416 R410
500KK 1SJ56 1 D401
C408 4
2700AAB
1000KK
C414 150CRD
L462 D412
L463 500KK R406
2200AAB 2SJ1K
L413
D461
FMC-
J421 J419 C404
G28SL
J J
1000KK2200NHA
:1000KK2200CR
C470 C463 C462
C464 J422 C403
630NJ 630NJ 630NJ C466 C465 16 30 Vpp [H]
100GJ 100GJ J C403A
J 0.012 0.01 0.01 100GJ
2.2P 2.2P 2.2P 1000KK
EAQ EAQ EAQ
470NHA
J420 R463 C467
J
DJ82K 400MK0.047AZ
:200NJ0.047EAQ
R461 19
PCC
2FJ1
:2FJ1VFNW
D429
R
L460
Q460 D460 R462
R464
TE7 R 1/6NF
2SB817E 1/6NF39K
TE7-FCT 680
R466
D428
1/6NF470
RD20EB3
C460
:MTZJ20C TP7 D422
D421 100GK
HZ11B2L R475
HZ11B2L 0.1P
Q462 1/6NF C468
33K 16PM
:2SC3332S
R422 C421 22P
R421 2SC3332R
1/6NF10K R423 6.3EM
1/6NF 1/6NF 220LBWA D467 D468 R467
1.8K R
3.3K R 1/6NF3.3K
C484
EM4.7LBWA
P-FAIL
HOLD_DOWN
— 66 —
To Video Board
(K25A)
K6A
10
21V
AGND
14V_TV
C619
14V_TV
P-FAIL KZ0.01F 14V_TV
To Main Board
GND
D618
R GND (K6PDA)
14V_DM
14V_DM
GND
D642 GND
1
C640
EM100
LBWA
K4D
R635 5
2SJ12K
TJ2
31VTV
14V_TV D635 To Main
GND
5VAL
5VAL Board
P-FAIL
P-FAIL
(K6PDD)
PWR_SW
L624 1
C629
16EM
3300
CD
P-FAIL
K6J
4
140V
MAIN+14V To VM
GND Board
NC
(K17J)
140V
1
D649
R
D643 Q642
AD
R646
10K
P-FAIL
7
1.5 Vpp [V]
8
K5B
12
15 50 Vpp [H]
NORMAL_SW
VRAMP–
V_RAMP–
V_RAMP+
R407
V_RAMP+
2SJ47
HOLD
35V
1.6 Vpp [H] GND
DOWN
C402 HOLD_DOWN
EM470T
Q401 14 PCC
2SC5291S PCC To Main
C401 R401
:2SC5291T H_DRIVE GND
EM3.3 J
Board
H_DRIVE
HGND
R402
HGND (K9FDB)
560
AFC
R405
AFC
5.6K
GND
D402 ABL
R R429 ABL
2.2
14V_TV 1
C417
R412
500CJ68G
12K
AFC
R411 R416
1SJ6.8K DJ100
D413
ABL
R469
J
PCC
C471
R468
FK0.082BF
1/6NF1K
FK0.082D
–15V
D462 C472
R470 FK0.022BF
1.5M :FK0.022D
C1902
16EM
10
LBWA
P/D
FRONT
LIST OF REPLACEABLE TRANSISTORS
(2SA933S TYPE)
14TH CODE 2SA933S 2SA1015
AB 7T200181 R Y,GR
AC 7T200182 Q,R O,Y,GR
(2SA1037K CHIP TYPE)
2SA1179 2SA1037
14TH CODE
AJ 7T200221 M6,M7 R,S
(2SC1740S TYPE)
14TH CODE 2SC1740S 2SC945A
AD 7T200183 Q,R,S QA,PA
AE 7QT00202 Q,R,S RA,QA,PA
(2SC2412K CHIP TYPE)
14TH CODE 2SC2812 2SC2412K
AH 7T200220 L6,L7 R,S
LIST OF REPLACEABLE DIODE
14TH CODE
R 7DD00019 1S1555,1S2473,1S2076,DS442,1N4148
1S1555,1S2473,1S2076,DS442,1N4148
AA 7DD00192
1SS176,1SS133,GMA01
M 7ED00025 1SS176,GMA01,1SS133
P 7DD00021 1S1553,1S2076A,1S2471,1N4148
RC Receiver
A1901
Standby Power Supply
U20B40500
D1902 KFRONT2
KFRONT J
(5V Regulator)
L1902
RC PRE AMP J
IC1611
PQ050EA1MXP
1 2 3
L1901
C1615
C1903 10EM C1620
C1614
6.3EM 470LBWA KZ0.01F
KZ0.01F
470
LBWA
D1901
R1611
5.6K
R1910
1K
R1612
CH.– CH.+ VOL.– VOL.+ POWER
33K
R1909
1K
Key Switch
K1901 K1902
1 6 1 8
To Main
To Main Board
(K9FRA)
Board
(K9FRB)
— 67 —
2SA564A
R
Q,R
2SC1815
Y,GR
O,Y,GR
DIODE NAME
CAUTION
FOR CONTINUED PROTECTION AGAINST
A RISK OF FIRE, REPLACE ONLY WITH
THE SAME TYPE 6A, 125V FUSE.
ATTENTION: POUR MAINTENIR LA PROTECTION
CONTRE LES RISQUES D' INCENDIE UTILISER UN
6A 125V
FUSIBLE DE RECHANGE DE MEME TYPE 6A, 125V.
AC Cord
D1612
T681
C601
VA601
D1614 A2
275GM
3 1 VEV0043
0.22VDC
6 4 1
C610
275GM
8 1
0.1VDB 2
2 F601
4
A1
6A125VT
C1613 F601B
16EM
LF602 LF601 F601A
2200 D1615 D1613
LBWA
D601
Q1611
2SC3068 RBV-608
– ~ + ~
RL601 AC Rectification
D1611
AC Switching
C1618
KZ0.01F
R601
15WK1VEC
C600 PS601 C604
DHXAA 500KK
500KK 1000A
KD1P EV0068
4700A
L901
C602
DEG. COIL 500KK
1000A
KD2P
R603
1/2CM3.3MXU
:1/2XJ3.3MV
(A:CA)
R602
:1/2DK3.3MLBWA 2SJ6.8K
Degaussing
Coil
K6F
K6M
Switching
1 2
RL602
4 3
C689
KZ0.01F
D683
R
R686
DJ120
Q688
R687 AB
22K
D687 R688
12K
R
C688
16EM
100
LBWA
Front Board
— 68 —
W601