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MT1120S
SERVICE MANUAL
COLOR TELEVISION RECEIVER
ORIGINAL MFR'S VERSION E
Design and specifications are subject to change without notice.
F-3
R511 R510 C805 R811 W165 R815 C804 R813 R809 C806 R816 R814 R101 R508 R113
R512 R519
R636 R112 R117 R516
R513
R135
C114
R518
C113 C119 R137 R127 R132
C129
R107 IC101
SOLDER SIDE
C120 R130 C121_1 R133 R129 R115 C125
R119 R106 C103 R116 R749 R109 R134 C130
R126
R406
R105
C116_1 C117_1 R352 C359_1 C351_1 C411_1 C358_1 R361 W033 R644 Q351 R628 C101
Q701
Q702
W808 W814
R123 R102 R122 R103
R104 R121
W843
R128
PRINTED CIRCUIT BOARDS MAIN/CRT (CHIP MOUNTED PARTS)
C707
R629
C363_1
R420 Q706
R419
R357 Q352
R120
R709 R716 R708 W164 C708 R740 R851 Q851 R858 C880 R861 C882 Q705 R704 R854 R855 Q707 R703 C001 R007 R006 C128 C874 R860 C881
R124 C616 R362 C650 R637 W159 R864 R859 R862 R639 R635 C631 R650 C636 R634 R852 Q852 R606 C004 R727 R729 R857 C862 C866 C863 C858 IC852 R621 R618 R622 C623_1 Q610 R640 R853 R615 C621 R617 IC601 49 17 C879 C883 R863 R647 R638 R642
C651_1
C647_1 R633 33 1
R646 C661 C648
C652
C653
R616
C884 C888 R866 C886 R867 R865
C867 R850 C864 C868
R611 C618 R609 R602 R601 C626 C607 C634 R652 R603 R645
R625 R619 R614 R605 R613 R604 C639 R624 R110 R648 R626 R111 R114 C127
F-4
A
B
C
D
E
F
G
H
MICON/TUNER SCHEMATIC DIAGRAM
(MAIN PCB)
8
TU001
15
8
ENV56D66G3 3 ADRES 1 AGC 4.6 7 BPL 5 SDA 9 BTL 4 SCL 6 V.S
13 12
10
ACCESSORY
14
11 IF
0.0 NC
0.0 NC
8
NC
30.0
1.3 NC 6.2 NC
0.0
5.0
5.0
5.0
2
6.3V 470 YK
AGC TP001 JWF-50K-1
R006 270
0.01 F
0.022 F
C001
C002
7
HZ30-3L
TM101 RC-DW040 C004
D001
R007 270
FROM/TO CHROMA C003 AGC 50V 4.7 KA TUNER+5V
7
R001_1 33K 2W
IF
SYNC I2C_OFF Y_VIDEO
6
2 5.2 R110 1K 4 41 2 5 0 5 0.1 F C103 3.2 0 0 0 5 R134 R115 47K C130 100P CH R135 10K 12 NC P24 10K 5 4.2 P51/V.SYNC P00/EXT MUTE P01/I2C_OFF P02/AUDIO MUTE P03/(Surround) P04 P05/(Center_SP) INT2/P.FAIL INT1/REMOCON P23/SYNC GREEN G BLUE B MICON IC IC101 OEC7044C 42 1 P50/H.SYNC RED R 4.8 4.8 4.8 0 0 R132 37 6 P21/AV1 P22/POWER P10/DEGAUSS_H 5.2 R127 5.2 47K 47K 3 R123 R122 R121 R120 4.7K 4.7K 4.7K 4.7K 560 R103 R102 R104 R124 560 560 4.7K
VD HD
6
OSD_R OSD_G OSD_B OSD_BLK GND 220P B C127 C128
R109 4.7K R116 OS101 PIC-28143SY-2 1 Vout 3 GND 47K R117 4.7K 2 B+
OUT1/BLANK BL P20/AV2
5
38
5
39
4
40
3
5
36
220P
B
C125 16V 10 KA C123 0.01 F R131 47 1/4W
POWER AT+5V AFT R105 C117_1 3.3K R114 220 SCL SDA RESET FROM DEFLECTION/CRT R111 R119 220 1K W801
7
35 34 33
NC 5.2
9
8
SCL1 SCL2
10
NC 5.2
47P R106
CH 3.3K C116_1
11
SDA1 SDA2
32
31
4
NC
X-RAY
47P
CH
4
13
NC 5.6 C122 0.1 KA 50V 1 KA R130 1K C121_1 2.2 0.8 3.6 C129 220P CH 0 3.9 4.4 0
30
P25/ON_TIMER AD1/X_RAY_TEST AVCC HLF V.HOLD CVIN CNVSS Xin Xout VSS X-RAY AD4/AFT AD5/KEY1 AD6/KEY2 RESET OSC1 OSC2 VCC
NC 0 2.8 5.2 R112 5.2 5.2 3.6 R137 3.3uH 2.7K L101 4.4 5.2 C101 0.022 F 5.0 SDA 5.0 5 6 SCL 0.0 MODE 7 5.0 8 VCC MEMORY IC IC199 S-24C02BDP-1A 560 2.7K 2.2K R113 2.2K C114 C115 0.68 TF R107 10K FROM TV POWER
14
29
15
28
+B FROM/TO SOUND AMP SDA SCL
C124
C120 200P CH 0.001 B R133 R129 680K 1.5K
50V
16
1 1 2
18
25
3
17
26
27
3
AUDIO_MUTE TO AV AV1 AV2 EXT_MUTE
19
24
10P CH C113 10P CH
20
X101 CSTS0800MG03-T2
21
C119
22
23
3
R101
R126
0.1 F C118
W837
R128
14/20 POWER SW106 SKHVBED010 20 VOL DOWN SW107 SKHVBED010 560 20 CH UP SW105 SKHVBED010 20 VOL UP SW103 SKHVBED010 14 CH UP 20 CH DOWN SW104 SKHVBED010
2
6.3V 470 YK VSS
2
E2
4 0.0 0.0
3 0.0
E1 2 0.0
E0 1
PCB010 TMX474
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARE
ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
DEFLECTION SIGNAL TUNER VIDEO SIGNAL R.SIGNAL G.SIGNAL B.SIGNAL
G H
1
A
B
C
D
E
F
G-1
G-2
A
B
C
D
E
F
G
H
CHROMA SCHEMATIC DIAGRAM
(MAIN PCB)
8
FROM TV POWER AT+10V 4.9 6 REG Q601 2SD734 120 1/4W 5.6 REG Q604 2SD734 REG Q605 2SD734 4.9 5.6 8.1 0.015 M 11.3 REG Q606 2SD734 100P CH C651_1 C655 50V 0.22 KA 8.2 R645 10
8
4.9 R623
8.2 8.2 5.6
7
7
R647 100
L607 15uH
R636
10V 100 YK
C614 10V 47 KA
C635 16V 47 KA
10V 47 KA
33K
C631
C619
R622 220
C630
3.8
C640_1
C622
5.5
16V 47 YK
50V 2.2 KA
BUFFER Q603 4.3 2SD734
R633 C625 8.2K 50V 1 KA
CF604 TPS4.5MB 0.01 F C644
8.7 R639 100
CC003
FROM/TO AV Y_VIDEO
R635 100
R628
100 R629
100
15P CH
R615 0.01 F L606 R650 C636 CF603 SFSH4.5MCB 1uH 470
100
C616
7
C647_1 R638 C661 R646
0.01 B 6.8uH C650 220P B 12K 0.01 F 47K C638 50V 0.47 KANP 1K
VIDEO_IN VIDEO
1.8K
R644
3.579545MHz
W818
X602
L608
D607
6
TO SOUND AMP R634 STEREO+5V R611 10K 10K
2.6 2 48 47 49 2.3
1 46
8 45 Hi Vcc
8 44
4 43 INTELLIGENT MONI
1SS133 4.9 8.6 3.2 5.6 0 0 42 41 40 39 38 37 5.7V REG OUT(FOR CPU) VIDEO/CHROMA GND MCU RESET Y SW OUT 5v REG
R637
2.8 3.2 2 36 35 34 CHROMA APC FILTER TV/Y IN
8.5 33 32 3.6 2.2 0 5 0 0 7.2
6
R642 C648 0.1 F C652 0.1 F C610 50V 0.22 KA C645 390K
D605 11E1-EIC
50
AUDIO OUT AUDIO BYPASS EXT AUDIO IN FM DIRECT OUT VIF VCO F/B VREG Vcc VIF APC FILTER VIF VIDEO OUT VIF GND
ACL/ABCL R IN V PULSE OUT
C604 50V 1 KA
51
52
NC C623_1 AUDIO_DET 120P CH C632 AUDIO_DET TP601 JWF-50K-1 R632 BUFFER Q610 2SC2412K 8.9 2.9 KA D601 2.3 R643 1.2K 1SS133 C656 100 1/2W D602 R618 10M 8.8 MTZJ8.2B C624 16V 47 YK C605 2.8 2.6 0 0 2.6 C626 R606 10K C606 SAW FILTER 50V 0.22 CF601 SAF45MFY220ZR IN IN G OUTOUT 1 2 3 4 5 L601 KA 0.001 B 2.8 2 2.6 1.5 50V 2.2 KA 3.6 3.2
53
5
55
SPOT KILLER fsc OUT
56
25
26
46 SW REG CONT 47 LIMITER IN 48 IF AGC 49 QIF OUT
34 EXT C in 33 8.7V REG OUT 32 X'TAL
54
FAST BLK
27
28
G OUT
29
30
2.2
31
5
330 50V 0.47 KA
NC 5 5 6 3 0 8
100P CH
C618
IF/CHROMA AUDIO IC IC601 M61203CFP VIDEO CHROMA Vcc V RAMP CAP
57
58
50V 2.2
R609
23
24
6.3V 47 KA
C613 R641 22K +-1% 1 TF C653 0.1 F FROM/TO DEFLECTION/CRT FBT+8V
59
C621 W840
0.01 F
60
AFT OUT QIF IN RF AGC OUT INV FBP OUT AFC FILTER H VCO F/B RF AGC FILTER VIF Vcc 64 VIF IN 1 VIF IN 17 V OUT 16 B OUT POWER ON CONT
V RAMP FEEDBACK B IN STRAT UP Vcc
R640
470
61
4
20
21
22
4
62
19 18
63
8 4.6 16V 1000 YK D610 MTZJ6.8B C612_1 R648 100 10 V_OUT ABCL V_FEEDBACK GND H_OUT H_SYNC R627 R630 100 1/4W 100 1/4W 100 1/4W MTZJ12B MTZJ12B MTZJ12B R617 2.7K B.OUT G.OUT R.OUT CLAMP TEST POINT CP601 173979-6 R616 82 B.OUT INT.MONI IIC_OFF SDA SCL GND 6 5 4 3 2 1
H OUT
R OUT
FBP IN
G OUT
SCL
64
DEF
1 1.6 0.01 F
2 5
4 3 5 6 7 5 2.6 4.8 6.4 6.4 R652 18 C658 6.3V 1000 YK R601 4.7K
8 0
9 0
10 5
SDA
11 5
12 5
13 14 15 16 5 2.8 2.5 2.6
C634
C639 0.01 F
1.2uH 1uH R621 L605 2.2K
9 R626
11 12 C603 50V 1 KA 13 0.01 F
R603
1.5K
FROM/TO MICON/TUNER
8 R624 2K
10K
IF Y_VIDEO AT+5V SYNC TUNER+5V RESET AFT AGC GND
6.3V 2200 YK
3
17
3
100
W843
R602
C601
R604
C607
R614 2.2K
R619 2.2K
0.0068 M
100uH
R605
R625 2.2K
R613
C620
L603
100
4.7K
W832
1K
R631
D609
D608
2
HD POWER OSD_B OSD_BLK OSD_G VD OSD_R I2C_OFF SDA SCL
D606
2
TO AV AT+5V
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
R.SIGNAL G.SIGNAL B.SIGNAL DEFLECTION SIGNAL AUDIO SIGNAL LUMINANCE SIGNAL TUNER VIDEO SIGNAL
F G
PCB010 TMX474
1
A
B
C
D
E
H
G-3
G-4
A
FROM CHROMA CLAMP
B
C
D
E
CP802A 51048-1000 GND CLAMP G.OUT R.OUT B.OUT S801 CP802B 51048-1000 GND CLAMP G.OUT R.OUT B.OUT NC HEATER GND NC 180V
F
G
H
DEFLECTION/CRT SCHEMATIC DIAGRAM(MAIN PCB)
V-OUT IC THERMAL PROTECTION IC401 LA78040 PUMP UP + 1 4.5 2 25 3 25 C414 4 35V 100 YK 0 5 24 6 48 7 4.8
1 2 3 4
1 2 3 4 5 6 7 8 9 10
8
G.OUT R.OUT B.OUT FBT+8V
8
TO SOUND AMP +12V
5 NC 6 HEATER 7 GND 8 NC 9 180V 10
0607
CP801_1 TS-80P-02-V1
7
14 W810
C804
CD801 8M82025A 18
1 D403 1 2 2
220uH
560P B
560P B
820P CH
7
C805 C806 3.2 2.7 126.0 RED OUT Q801_1 2SC4217 GREEN OUT Q802_1 2SC4217 3.9K 3.9K R811 2.7 120.5 BLUE OUT Q803_1 2SC4217 2.2K R816 330 330 330 R814
19
11E1-EIC 25V1000 YK 100V 0.012 M
L801
100V 0.15 TF
C430
C422
2.7
R418 150P CH 500V 22P SL C417 R419 C429_1 11K +-1% C411_1 33K +-1%
R420
50V 2.2 1.8K MHE
1 1/2W
C418
R416
3.3K
R813
R417
5 7 1
50V 10 MHE C427
6
R407
HS401 763WSA0015
2.2 1/2W
TO DY 5 4 100V 22 YK 3 NC 2 1 CP401 B05B-DVS 20 21 22
R815
9 10 8 6 11
128.0
R G B
R809
V801 A51LMU50X50N45
3.2
3.2
6
L401 1/4W R426 R406
ELH-5L50N1431 C401_1 C434
TP022
TP024
TP023
2.2K
2.7K 1/4W
1/4W
HZ27-1L 22K 1/4W 1K +-1%
12K +-1%
12K
R405
R408
R401 TO MICON/TUNER 100K 1/4W +-1%
1K
1W
R429_1 3.3 2W
D401
R803
R802
R805
R804
2.7K
R404
AU02A-EIC
R807
12K 2W
2KV 0.001
YR
5
D402
R424 6.8K +-1%
R409 5.6K +-1% 4.7mH 0909
R806
2.7K 1/4W
12K 2W
D411
2W
X-RAY
5
HZ11B1L
FROM/TO CHROMA GND
500V 22P SL 4.7K 1/2W
C437
6 68 1/2W R423
250V 0.33
NC 2 1
PMS
3
4
CC002
4
V_FEEDBACK V_OUT ABCL H_OUT H_SYNC
R446
C801
C439
330P B
15
250V 1 YK
C413
T401 305Y001
L410
16
160V 1 MHE
4
W891 FB401_1 3221016 HV FOCUS
8.2K 5W
500V 0.0022 B
H.OUTPUT Q401_1 2SD2499(LBOEC1)
W831
C444_2
R428
C446
100 1/4W
FROM TV POWER +B
HS402 763WSA0015 W811 R403_1
W897
2
B+
AFC 9 HEA 10 TER
GND 0 11 ABL 7
0.3 0
C819_1
S
SCREEN
2KV 0.001 B
C440
0
CP806_1 005P-2100
R427
0.3
H.DRIVE Q402 2SC2621
C443
27.0
2KV 220P YR
130.0 0 0
17
1.6KV 0.0082 ECWH
130.0
1
COL
137.0 6 VIDEO
F
FOCUS
SCREEN
1
6.4
4 5
96.4
3
3
GND 6.8K 1/2W C406 MTZJ6.2B D404 500V 22P SL
NC
6
8
5
9
101.6
7
3
E25 E8
0
99.6
J801 HPS3200-010501
F
4
E12
GND 0 8
0
1
0 8 GND
0
3
R.SIGNAL G.SIGNAL
AU02A-EIC
D405 16V 470 YK 16V 470 YK D410
2
C405 C404
AU02A-EIC
B.SIGNAL DEFLECTION SIGNAL
PCB110 TCX335
2
D400 AU02A-EIC
R445
35V 1000 YK 200V 22 MHE
220K 1/4W
0.1 TF 220K 1/4W C435 R421 PCB010 TMX474
100V
AU02A-EIC
C403
C448
1
D406
ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY ARE
NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A
B
C
D
E
F
G
H
G-5
G-6
A
B
C
D
E
F
G
H
TV POWER SCHEMATIC DIAGRAM
(MAIN PCB)
8 8
5A 125V CAUTION: ATTENTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE ONLY WITH THE SAME TYPE 5A 125V (F501) POUR LINE PROTECTION CONTINUE LES RISQUES D'INCEIE N'UTILISER QUE DES FUSIBLE DE MEME TYPE 5A 125V (F501) R517_1 2.7 2W TO SOUND/AMP SOUND+B
C516 500V 470P B
C519_1
21DQ09N D515 21DQ09N
25V 1000 MHE
7
D505
7
GND
DEGAUSS COIL L503 8R200026 1 2 1
2.7M 1/2W +-10%
R500_2
W845
D510 160V 100 YXF RU2AM
CP502 TV-50P-02-A1
2
6
W821 3 4
T502 81290604 R501_1 2.2 7W 178 R510 1.2M RM11C-EIC RM11C-EIC 7 9 15.3 C517_2 2KV 470P YR 10 NC D513 NC 6 177 5 11EQS04N C512 161 500V 470P B 0 0 11.8 16V 1000 MHE 11 12 13 14 15 0 C515
C521_1
TO DEFLECTION/CRT W807 +B GND TO CHROMA AT+10V
6
TH501_1 PTAD14K2-3R0Q141 2
1
2
D501
C526
C502 250V 0.22 ECQUL 500V 0.001 B D504 RM11C-EIC
C503 RM11C-EIC 500V 0.001 B D503
R511
1.2M
3
1
D502
P
H
200V 470 USR
L501_2 1R5A102F20
MTZJ18B
NC 4 8.5 0 8.6 3 2 1
D509
5
C505
TO MICON/TUNER +B
5A 125V F501 5A125V
5
C507_1
BLACK BLADE WIDE 2 2 WHITE WHITE
250V 0.0047 KH
CP501 THL-P03P-B1
W806
4
39 3W SWITCHING Q501 2SK2662 177 D G 3.6 S 0 R504
C511 D518 50V 1 KA D506 R505 220 1W C509 1SS133 D508 0.047 M 1SS133 MTZJ15B R520 150K 1/2W
1SS133
1
1
120V 60Hz CD501_1 120R614914 BLACK
233005-MB000 FH501 FH502 EYF-52BC EYF-52BC D512
16 NC
4
2KV 680P YR
C514_1
MTZJ15B
D507
1K 1/4W
1/4W
R512
R509
R506
1.8K
2.2K
0.47
4
3
2
0
C501
HS501 763WAA0083
0.01 M
0.47
1
0.8 FEED BACK IC506 TLP621(D4-GR-LF2)
8.8 R515_1
8.8 FEED BACK SWITCHING Q507 2SC1740SP 6 R516 470 5.5 D514 1SS133 R519 330 16V 47 YK +B ADJ. VR501 470 D519 1SS133
2
22K
1/4W
39K
9.6
0
R514_1
R542
SWITCHING Q502 3.6 2SC2120Y
2.7K
R513
1W
5.6K
3
R508
1/4W
3
2
MTZJ5.6B
D528
C510
R518
2.2K
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
PCB010 TMX474
1
CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARE
ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
A
B
C
D
E
F
G
H
G-7
G-8
A
B
C
D
E
F
G
H
SOUND AMP SCHEMATIC DIAGRAM
FROM/TO MICON/TUNER
(MAIN PCB)
8
REGULATOR 9V IC IC853 KIA78L09BP-AT
8
SCL SDA
AUDIO_MUTE
C873
IN 3
GND 2 0
OUT R860 4.7K 1 9.1
10V 47 KA R862
100 R867
7
R851 2.2K
R865
1K
100
11.7
7
R864 50V 2.2 KA 25 C875 2.3 2.2K 0 R852 26 16V 10 KA C870 R859 4.7K 4.4
C881
3.2 BUFFER Q851 2SA1037AK
1.8K 0.033 B C879 C883 0.022 F 4.2 4.4 3 4 1.8K + VR3 S1 0.47 F 3.4 3.3 4.4 3.7 9 5 S3 S5 VR5 6 S7 7 8 TONE AMP1 + 6.5K CONTROL LOGIC + TONE VR6 AMP2 15 14 13 4.4 0 S4 S6 S8 3.8 10 I2C BUS INTERFACE 0
TONE CONTROL IC IC854 M62420SP
R850 2.7M
0.047 B C864
R854
100 R855
C862
F
C867
F
1 REF
4.2 2 VR1 REF REF + + -
100
0.1
3.2 BUFFER 2.3 0 SOUND AMP IC IC852 AN5829S 24 23
AGC
0.1
136K
12K 50V 2.2 KA
6
GND
C869
Q852 2SA1037AK
2.7 22
2.7 21
DAC
NC 20
5 19
4.9 18
0 17
3.5 16
3.5 15
Det Pilot
2.5 14
VCA Input
3.5 13
Det SAP
50V 2.2 KA
RMS Det Wide Band
dbx De-Emph
Expand Spectral
RMS Det Spectral
Det Noise
C876
Switch Matrix De-Emph (L-R)/SAP 75us Filter Cancel SAPout Offset Expand Cancel Wide Band Offset
L+R Filter
L+R Demod
Filter Stereo
Filter Noise Filter Spectral
Filter SAP Demod SAP
R857
L-R Filter
L-R Demod
Cancel Pilot
S2
OUT SW
ZAP IIC Decoder
St.PLL
SIMAMP1 VOLAMP16.5K VOLAMP2 SIMAMP2 6.5K VR2 + 136K 1.8K VR4 20 19 18 17 16 8.9 4.2 4.2 4.4 3.4 C880 C882
6.5K
6
12 5.0
11 5.0
fH.2fH Trap Filter
Filter Wide Band
1 1.5
2
3 2.4
4 2.4 50V 4.7 KA
5 0.7 C857
6
16V 3.3 TT +-10%
0.1 F
7 5 16V 10 TT +-10%
Vcc
8 2.4 50V 0.33 KA
9
2.4 C861
10 0.7 C865
11 2.2
12 2.2 C868
0.022 F 0.47 F R863 C884 1.8K 0.033 B C888 0.001 B R866 100K 16V 47 KA 0.022 F
R858 12K
C871 50V 2.2 KA R861 1K 25V 47 KA 0.022 F C874
50V 4.7 KA
R853
C854
3.3
C872
KA
6.3V 47 KA
C858 0.022 B
50V 4.7
C860
FROM/TO AV SOUND_R REAR_AUDIO_R REAR_AUDIO_L FRONT_AUDIO_R AUDIO_OUT_R AUDIO_OUT_L SOUND_OUT_L 22uH 0607 FRONT_AUDIO_L L851 27 SOUND_L
4
0.022
0.1 F
C855
C863
C866
C886
B
5
220K C853
C885
5
SOUND_OUT_R
SOUND AMP IC
IC351
LA4600
4
P.CON+5V
OUTPUT GND RIPPLE FILTER VCC P.P STAND-BY ATT. INPUT GND
FROM TV POWER SOUND+B GND W829 W825 1K 1/4W
C358_1 0.047 R363 B R360
1 8.1
2 0
3 8.1
4 12.1
5 6.0
6 8.9
7 0.9
8 1.4
9 0
10 1.4
W859
1K 1/4W W805
R357 50V 4.7 MHE 1.8K 28
C359_1
0.018
2.7K
2.7K
AUDIO_DET
W834 STEREO+5V S803Y S803X 0 2.9 MUTE SW. Q351 0.6 0 2SC2412K 0 0 C350 16V 1000 MHE MUTE SW. Q352 2SC2412K
2
FROM DEFLECTION/CRT +12V
R362 4.7K C360 6.3V 47 KA
C357
FROM CHROMA
0.018 B
S801X S801Y
16V 47 KA C352
HS351 763WAA0131
3
0.047 C363_1 B B R352 R361
3
C351_1
2
C353 16V 1000 MHE PCB010 TMX474
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARE
ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
AUDIO SIGNAL
1
A
B
C
D
E
F
G
H
G-9
G-10
A
B
C
D
E
F
G
H
AV SCHEMATIC DIAGRAM
(MAIN PCB)
8 8
FROM STEREO JACK CP701B 8283_0812_00_000 8 7 6 5 4 3 2 1 GND FRONT_VIDEO_IN GND NC A_IN_R GND A_IN_L NC GND FRONT_VIDEO_IN GND R740 75 A_IN_R GND A_IN_L R729 1K FROM/TO SOUND AMP R727 C701 1K C702 FRONT_AUDIO_R 16V 10 KA FRONT_AUDIO_L 16V 10 KA MTZJ6.8B D702 MTZJ6.8B D711 GND
7
7
REAR_AUDIO_R REAR_AUDIO_L AUDIO_OUT_R AUDIO_OUT_L CP703B 8283_0512_00_000 1 2 3 4 5 L-OUT L+OUT R-OUT R+OUT GND W814 SOUND_OUT_R P.CON+5V SOUND_OUT_L W808 GND
6
TO STEREO JACK
6
VIDEO AMP IC
IC703
NJM2234L
5
VIN 1 1 5.5 SW1 VIN2 2 5.0 C720_1 3 5.5 50V 10 YK SW2 4 VIN3 5 5.5 VT 6 VOUT 5.0 7 4.0 GND 8 0.0
5
5.0
50V 1 YK
C706_1
50V 10 YK D703
MTZJ12B
10V 470 YK C707
C712_1
0.022 F
MTZJ12B
C719_1
D701
FROM MICON/TUNER EXT_MUTE AV2 AV1 FROM/TO CHROMA VIDEO
4
4
R711 5 6 R709 R724_1 5
H2 H1 NC H1 E
C704 C703 16V 10 MTZJ6.8B D708 KA MTZJ6.8B D707 R702
VIDEO_IN
1K 1/4W
H2 H1 NC H1
E
Y_VIDEO 10 1/4W AT+5V R720 C726 16V 10 KA MTZJ6.8B C730 16V 10 KA D706
1K
16V 10 KA
3
6
1
E
2
75 1/4W NC
4
3
1
E
2
R721 1K C722 10V 470 YK R760 47 1/4W MUTE Q705 2SC2412K 0 33P CH 0 0 0 1/4W
1K 1/4W
3
R_A/V_IN (STEREO) J703_1 AV3-19DS-1
4
R_A/V_OUT (STEREO) J704_1 AV3-19DS-1
3
R708
MTZJ12B
D705
0
C708
4.5
C705
1K R704 0 1K
50V 4.7 KA
R716
75
1K
0
2
D709
5.2
0
MTZJ6.8B
BUFFER Q706 2SA1037AK
0
MUTE_SW 5.0 Q701 MUTE DTA144EKA 4.4 Q707 2SC2412K R703 0
R749 2.2K 4.4 MUTE_SW Q702 DTC114EK
2
CAUTION: DIGITAL TRANSISTOR NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
CAUTION: DIGITAL TRANSISTOR
PCB010 TMX474
AUDIO SIGNAL TUNER VIDEO SIGNAL
1
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A
B
C
D
E
F
G
H
G-11
G-12
A
B
C
D
E
F
G
H
STEREO JACK SCHEMATIC DIAGRAM
8
(STEREO JACK PCB)
8
7
7
TO AV CD701 CH28110A F_A/V_IN(STEREO) J702_1 JPJ3653-01-234 7 NC
PCB280 TE9977
6
8 7 6 5 4 3 2 1
A_IN_R GND A_IN_L GND V_IN GND
A_IN_R GND A_IN_L NC GND V_IN GND NC
6
A_IN_R E A_IN_L V_IN E 1 E 3 5
H
2
H
4
H
6
5
CD353 CH14061A 4 3 2 1
SPEAKER L+ LRR+ SPEAKER 8 OHM 2.5W SP355_1 MS-2D6SB02 8 OHM 2.5W SP354_1 MS-2D6SB02
5
4
4
W860 FROM AV CD352 CH25088A 5 NC R+ OUT R- OUT L+ OUT L- OUT W861
3
4 3 2 1
3
2
2
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
1
1
A
B
C
D
E
F
G
H
G-13
G-14
WAVEFORMS
MICON/TUNER
1 200mV 5ms/div
7 200mV 20µs/div
12 1V 20µs/div
2 0.5V 20µs/div
8
20V 20µs/div
13 1V 20µs/div
DEFLECTION/CRT
3 200mV 20µs/div
9
200mV 20µs/div
14 0.5V 5ms/div
4 200mV 5ms/div
10 0.5V 5ms/div
15 20V 20µs/div
CHROMA
6 0.5V 20µs/div
11 1V 20µs/div
16 2V 20µs/div
NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
H-1
WAVEFORMS
17 200V 20µs/div
22 50V 20µs/div
SOUND AMP
18 10V 5ms/div
25 200mV 1ms/div
19 10V 5ms/div
26 200mV 1ms/div
20 50V 20µs/div
27 0.5V 1ms/div
21 50V 20µs/div
28 1V 1ms/div
NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
H-2
MECHANICAL EXPLODED VIEW
115 204 204
204 204 204 204
205 201
203
J801
107
201
204
116
108 203
203
114
PCB110 (CRT PCB)
204
L503
116
107 V801
116
107
202
203
FB101
113
206
116
107 111 207 PCB010 (MAIN PCB) SP354 SP355 207 201 109 110 105 106 104 112 201 202
206
TU001
206
PCB280 (STEREO JACK PCB)
103 102 101
I-1
MECHANICAL REPLACEMENT PARTS LIST
REF. NO. PART NO.
101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 201 202 203 204 205 206 207 --------------A3G853J720 701WPJB240 711WPAA065 713WPAA010 735WPBA220 735WPAA279 800WR0A003 741WUA0001 7220001107 7220001119 723000A900 726000A014 8995034000 702WPAA129 722A08A081 769WSAA003 8110630A04 8110630802 8111J50D04 8117540A64 8117540A04 8109I30A04 8117330A04 JB5K0100 J3G85301 791WHA0025 792WHA0199 792WHA0200 A3G853J975 793WCDA937
DESCRIPTION
CABINET,FRONT ASS'Y CABINET,FRONT PLATE,DISPLAY GUIDE,REMOCON BUTTON,CHANNEL BUTTON,BASE SHEET,CRT SUPPORT SPRING,EARTH SHEET,HWC SHEET,CSA WARNING FILM,DECORATION SHEET,CRT SERVICEMAN CORD CLIP UL CO. CABINET,BACK SHEET,RATING WASHER SCREW,TAP TITE (P) SCREW,TAP TITE (P) SCREW,TAPPING (A) SCREW,TAPPING (B0) SCREW,TAPPING (B0) SCREW,TAP TITE (B) SCREW,TAPPING (B0) POLY BAG INSTRUCTION BOOK LAMIFILM BAG PACKAGE,TOP PACKAGE,BOTTOM INSTRUCTION BOOK KIT GIFT BOX BRAZIER BRAZIER GW22 TRUSS TRUSS WH7 FLAT
9.5x22xT2 3x10 3x8 5x40 4x16 4x10 3x10 3x10
J1-1
ELECTRICAL REPLACEMENT PARTS LIST
REF. NO. PART NO.
! ! ! ! ! ! ! ! ! ! ! ! ! ! ! R001 R401 R404 R405 R406 R407 R408 R409 R424 R426 R428 R429 R500 R501 R504 R505 R509 R517 R518 R519 R542 R629 R803 R3X18A333J R4X5T4104F R3X181102J R4X5T4223F R801R7222J R002T22R2J R4X5T6123F R4X5T6562F R4X5T6682F R002T4102J R5X2CD822J R6558A3R3J R0G3K2275K R5X2CE2R2J R3X28B390J R3X181221J R002T4182J R3X28A2R7J R801R7222J R801R7331J R3X181R47J R801R7101J R3X18A123J R3K18A123J R3X18A123J R3K18A123J R3X18A123J R3K18A123J C0JLYR713K C01BBP713K E02LF4102M E02LT4101M E02LF3102M E02LT8220M P4J7F3334J P414F9822H C0JLYR7H2K E5EZTB010M E53ZTB010M E53ZTD010M E5EZFC220M C0JTB0513K C0JTB0513K P2122B224M CB3HE0MQ3M E50HU5010M C0JLYR7U2K E5EZT2102M E53ZT2102M C0JLYR7Q2K E5EZT3102M E02YT3102M E62NFB101M E52DGC471M E0EL02102M P1S3T0682J C0JBB0713K D94TA30013 D2WTAU02A0 D94TA27011 D94TA11B11 D2WT011E10 D97U06R21B D92UA6R2B2 D2WTAU02A0 D2WTAU02A0 D2WTAU02A0 D2WTAU02A0 D2WTRM11C0 D2WTRM11C0 D2WTRM11C0 D2WTRM11C0 D28T21DQN9 D97U01501B D97U01501B
DESCRIPTION RESISTORS
R,METAL OXIDE R,METAL R,METAL OXIDE R,METAL RC RC R,METAL R,METAL R,METAL RC R,CEMENT R,FUSE RC R,CEMENT R,METAL OXIDE R,METAL OXIDE RC R,METAL RC RC R,METAL RC R,METAL OXIDE R,METAL R,METAL OXIDE R,METAL R,METAL OXIDE R,METAL 33K OHM 2W 100K OHM 1/4W 1K OHM 1W 22K OHM 1/4W 2.2K OHM 1/10W 2.2 OHM 1/2W 12K OHM 1/6W 5.6K OHM 1/6W 6.8K OHM 1/6W 1K OHM 1/4W 8.2K OHM 5W 3.3 OHM 2W 2.7M OHM 1/2W 2.2 OHM 7W 39 OHM 3W 220 OHM 1W 1.8K OHM 1/4W 2.7 OHM 2W 2.2K OHM 1/10W 330 OHM 1/10W 0.47 OHM 1W 100 OHM 1/10W 12K OHM 2W 12K OHM 2W 12K OHM 2W 12K OHM 2W 12K OHM 2W 12K OHM 2W
REF. NO. PART NO.
D508 ! D509 ! D510 D512 ! D513 D514 D515 D518 D519 D528 D601 D602 D605 D606 D607 D608 D609 D610 D701 D702 D703 D705 D706 D707 D708 D709 D711 IC101 IC199 ! IC351 ! IC401 ! IC506 IC601 IC703 IC852 IC853 IC854 Q351 Q352 Q401 Q402 Q501 Q502 Q507 Q601 Q603 Q604 Q605 Q606 Q610 Q701 Q702 Q705 Q706 Q707 Q801 Q802 Q803 Q851 Q852 D1VT001330 D97U01801B D2BTRU2AM0 D1VT001330 D28XQS04N0 D1VT001330 D28T21DQN9 D1VT001330 D1VT001330 D97U05R61B D1VT001330 D97U08R21B D92UA8R2B2 D2WT011E10 D97U01201B D1VT001330 D97U01201B D97U01201B D97U06R81B D97U01201B D97U06R81B D97U01201B D97U01201B D97U06R81B D97U06R81B D97U06R81B D97U06R81B D97U06R81B I56F07044C A3G851J015 I03SP46000 I03TD80400 0002500560 I06FC1203C I0QS02234L I01FF58290 I1KJ98L090 I06DF62420 T8YJ2412K0 T8YJ2412K0 TDUU024990 TC3Q026210 T25FK26620 TC5T021204 TCYT1740S0 TD3T007340 TD3T007340 TD3T007340 TD3T007340 TD3T007340 T8YJ2412K0 TPYJD05001 TNYTB05001 T8YA2412K0 T6YJ1037K0 T8YA2412K0 TC3F042170 TC3F042170 TC3F042170 T6YJ1037K0 T6YJ1037K0 021LA63R3K 022R000002 021679472K 029T00A7M1 028R200026 021LA61R2M 02167D101K 021LA61R0M 021LA61R0M 021LA6150K 021LA66R8K 02167D221K 02167D220K
DESCRIPTION DIODES
DIODE,SILICON DIODE,ZENER DIODE,SILICON DIODE,SILICON DIODE,SCHOTTKY DIODE,SILICON DIODE,SCHOTTKY DIODE,SILICON DIODE,SILICON DIODE,ZENER DIODE,SILICON DIODE,ZENER DIODE,ZENER DIODE,SILICON DIODE,ZENER DIODE,SILICON DIODE,ZENER DIODE,ZENER DIODE,ZENER DIODE,ZENER DIODE,ZENER DIODE,ZENER DIODE,ZENER DIODE,ZENER DIODE,ZENER DIODE,ZENER DIODE,ZENER DIODE,ZENER 1SS133T-77 MTZJ18B T-77 RU2AM V1 1SS133T-77 11EQS04N-TA2B5 1SS133T-77 21DQ09N-TA2B1 1SS133T-77 1SS133T-77 MTZJ5.6B T-77 1SS133T-77 MTZJ8.2B T-77 or RD8.2ES AB2 11E1-EIC MTZJ12B T-77 1SS133T-77 MTZJ12B T-77 MTZJ12B T-77 MTZJ6.8B T-77 MTZJ12B T-77 MTZJ6.8B T-77 MTZJ12B T-77 MTZJ12B T-77 MTZJ6.8B T-77 MTZJ6.8B T-77 MTZJ6.8B T-77 MTZJ6.8B T-77 MTZJ6.8B T-77 OEC7044C S-24C02BDP-1A LA4600 LA78040 TLP621(D4-GR-LF2) M61203CFP NJM2234L AN5829S KIA78L09BP-AT M62420SP 2SC2412KT146(R,S) 2SC2412KT146(R,S) 2SD2499(LB0EC1) 2SC2621(D,E)-RAC 2SK2662 2SC2120Y(TPE2) 2SC1740SP(R,S) TP 2SD734(E,F)-AA 2SD734(E,F)-AA 2SD734(E,F)-AA 2SD734(E,F)-AA 2SD734(E,F)-AA 2SC2412KT146(R,S) DTA144EKAT146 DTC114EKT147 2SC2412KT147(R,S) 2SA1037AKT146(R,S) 2SC2412KT147(R,S) 2SC4217(D,E)-RAC 2SC4217(D,E)-RAC 2SC4217(D,E)-RAC 2SA1037AKT146(R,S) 2SA1037AKT146(R,S) 3.3 UH ELH-5L50N1431 4.7 MH 1R5A102F20 8R200026 1.2 UH 100 UH 1 UH 1 UH 15 UH 6.8 UH 220 UH 22 UH
! ! ! !
or or or
! R805 ! R807
CAPACITORS
! C401 ! ! ! ! C403 C414 C418 C434 C437 ! C443 ! C444 ! C446 CC CC CE CE CE CE CMPP CMPP CC CE CE CE CE CC CC CMP CC CE CC CE CE CC CE CE CE CE CE CP CC 0.001 UF 2KV YR or 0.001 UF 2KV BP 1000 UF 35V 100 UF 35V 1000 UF 25V 22 UF 100V 0.33 UF 250V PMS 0.0082UF 1.6KV ECWH 220 PF 2KV YR 1 UF 160V or 1 UF 160V VZ or 1 UF 250V VZ 22 UF 200V 0.001 UF 500V B 0.001 UF 500V B 0.22 UF 250V ECQUL 0.0047UF 250V 1 UF 50V 680 PF 2KV YR 1000 UF 16V or 1000 UF 16V VZ 470 PF 2KV YR 1000 UF 25V or 1000 UF 25V 100 UF 160V 470 UF 200V 1000 UF 16V 0.0068UF 50V 0.001 UF 2KV B
ICS
IC IC IC IC PHOTO COUPLER IC IC IC IC IC
TRANSISTORS
TRANSISTOR,SILICON TRANSISTOR,SILICON TRANSISTOR,SILICON TRANSISTOR,SILICON TRANSISTOR,FIELD EFFECT TRANSISTOR,SILICON TRANSISTOR,SILICON TRANSISTOR,SILICON TRANSISTOR,SILICON TRANSISTOR,SILICON TRANSISTOR,SILICON TRANSISTOR,SILICON TRANSISTOR,SILICON COMPOUND TRANSISTOR COMPOUND TRANSISTOR TRANSISTOR,SILICON TRANSISTOR,SILICON TRANSISTOR,SILICON TRANSISTOR,SILICON TRANSISTOR,SILICON TRANSISTOR,SILICON TRANSISTOR,SILICON TRANSISTOR,SILICON COIL COIL,LINEARITY COIL COIL,LINE FILTER COIL,DEGAUSS COIL COIL COIL COIL COIL COIL COIL COIL
! ! ! ! ! !
C448 C502 C503 C505 C507 C511 C514 C515
! ! ! !
C517 ! C519 ! C521 ! C526 C612 C620 C819 D001 D400 ! D401 ! D402 D403 D404 ! D405 D406 ! D410 ! D411 ! D501 ! D502 ! D503 ! D504 ! D505 D506 D507
DIODES
DIODE,ZENER DIODE,SILICON DIODE,ZENER DIODE,ZENER DIODE,SILICON DIODE,ZENER DIODE,ZENER DIODE,SILICON DIODE,SILICON DIODE,SILICON DIODE,SILICON DIODE,SILICON DIODE,SILICON DIODE,SILICON DIODE,SILICON DIODE,SCHOTTKY DIODE,ZENER DIODE,ZENER HZ30-3L TD AU02A-EIC HZ27-1L TD HZ11B1L TD 11E1-EIC MTZJ6.2B T-77 RD6.2ES AB2 AU02A-EIC AU02A-EIC AU02A-EIC AU02A-EIC RM11C-EIC RM11C-EIC RM11C-EIC RM11C-EIC 21DQ09N-TA2B1 MTZJ15B T-77 MTZJ15B T-77
! ! !
COILS &TRANSFORMERS
or L101 L401 L410 ! L501 ! L503 L601 L603 L605 L606 L607 L608 L801 L851
J2-1
ELECTRICAL REPLACEMENT PARTS LIST
REF. NO. PART NO. DESCRIPTION COILS &TRANSFORMERS
T401 ! T502 J702 J703 J704 ! J801 SW103 SW104 SW105 SW106 SW107 VR501 03305Y0018 0481290604 0602431015 060Q431018 060Q431018 066X120014 0504201T31 0504201T31 0504201T31 0504201T31 0504201T31 TRANS,HORIZONTAL DRIVE TRANSFORMER,SWITCHING 305Y001 8129060 JPJ3653-01-234 AV3-19DS-1 AV3-19DS-1 HPS3200-010501 SKHVBED010 SKHVBED010 SKHVBED010 SKHVBED010 SKHVBED010 EVNCYAA03BQ2 EVNDXAA03BQ2 TMX474A TCX335A TE9977A CH25088A CH14061A 120R614914 CH28110A 8M82025A SAF45MFY220ZR SFSH4.5MCB-TF21 TPS4.5MB-TF21 B05B-DVS THL-P03P-B1 TV-50P-02-A1 173979-6 TS-80P-02-V1 005P-2100 8283_0812_00_000 8283_0512_00_000 51048-1010 51048-1010 XRY20X30BD 233005-MB000 3221016 EYF-52BC EYF-52BC PIC-28143SY-2 MS-2D6SB02 MS-2D6SB02 PTAD14K2-3R0Q141 RC-DW040 ENV56D66G3 A51LMU50X50N45 CSTS0800MG03-T2 3.579545MHz or
JACKS
RCA,JACK RCA,JACK RCA,JACK SOCKET,CRT
SWITCHES
SWITCH,TACT SWITCH,TACT SWITCH,TACT SWITCH,TACT SWITCH,TACT
VARIABLE RESISTORS
V1163Q2BTC VOLUME,SEMI FIXED V1163Q2BT6 VOLUME,SEMI FIXED
P.C.BOARD ASSEMBLIES
PCB010 PCB110 PCB280 CD352 CD353 CD501 CD701 CD801 CF601 CF603 CF604 CP401 CP501 CP502 CP601 CP801 CP806 CP701B CP703B CP802A CP802B EL001 F501 FB401 FH501 FH502 OS101 SP354 SP355 TH501 TM101 TU001 V801 X101 X602 A3G853J01A PCB ASS'Y A3G853J11A PCB ASS'Y A3G853J28A PCB ASS'Y
MISCELLANEOUS
06CH25088A 06CH14061A 120R614914 06CH28110A 068M82025A 1022T45R72 1012T4R509 1012T4R503 069X450029 0697320039 069W420029 0694260139 069D320018 069D010010 069E280129 069E250129 067R010019 067R010019 124120301A 081PA05003 043221016A 06710T0006 06710T0006 077Q014003 070W463002 070W463002 DF40A3R0Q0 076N0DW040 0145S00052 098Y210412 1002T00802 100CT3R505 CORD,CONNECTOR CORD,CONNECTOR CORD,AC CORD,CONNECTOR CORD,CONNECTOR FILTER,SAW FILTER,CERAMIC FILTER,CERAMIC TRAP CONNECTOR PCB SIDE CORD,UX CONNECTOR CONNECTOR PCB SIDE CONNECTOR PCB SIDE CONNECTOR PCB SIDE CONNECTOR PCB SIDE CONNECTOR PCB SIDE CONNECTOR PCB SIDE WIRE HOLDER WIRE HOLDER EYE LET FUSE TRANSFORMER,FLYBACK HOLDER,FUSE HOLDER,FUSE REMOTE RECEIVER SPEAKER SPEAKER DEGAUSS,ELEMENT TRANSMITTER TUNER,VHF-UHF CRT W/DY CERAMIC OSCILLATOR CRYSTAL HC-49/C
!
! ! !
! !
! ! ! ! !
RESISTOR RC................... CARBON RESISTOR CAPACITORS CC................... CERAMIC CAPACITOR CE................... ALUMI ELECTROLYTIC CAPACITOR CP................... POLYESTER CAPACITOR CPP.................. POLYPROPYLENE CAPACITOR CPL.................. PLASTIC CAPACITOR CMP................... METAL POLYESTER CAPACITOR CMPL................ METAL PLASTIC CAPACITOR CMPP................ METAL POLYPROPYLENE CAPACITOR
J2-2
SPEC.NO. O/R NO.
M3G8-53J W143007
SERVICING NOTICES ON CHECKING
1. KEEP THE NOTICES
As for the places which need special attentions, they are indicated with the labels or seals on the cabinet, chassis and parts. Make sure to keep the indications and notices in the operation manual.
6. AVOID AN X-RAY
Safety is secured against an X-ray by considering about the cathode-ray tube and the high voltage peripheral circuit, etc. Therefore, when repairing the high voltage peripheral circuit, use the designated parts and make sure not modify the circuit. Repairing except indicates causes rising of high voltage, and it emits an X-ray from the cathoderay tube.
2. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an electric shock while the electric current is flowing.
3. USE THE DESIGNATED PARTS
The parts in this equipment have the specific characters of incombustibility and withstand voltage for safety. Therefore, the part which is replaced should be used the part which has the same character. Especially as to the important parts for safety which is indicated in the circuit diagram or the table of parts as a mark, the designated parts must be used.
7. PERFORM A SAFETY CHECK AFTER SERVICING
Confirm that the screws, parts and wiring which were removed in order to service are put in the original positions, or whether there are the portions which are deteriorated around the serviced places serviced or not. Check the insulation between the antenna terminal or external metal and the AC cord plug blades. And be sure the safety of that.
(INSULATION CHECK PROCEDURE)
4. PUT PARTS AND WIRES IN THE ORIGINAL POSITION AFTER ASSEMBLING OR WIRING
There are parts which use the insulation material such as a tube or tape for safety, or which are assembled in the condition that these do not contact with the printed board. The inside wiring is designed not to get closer to the pyrogenic parts and high voltage parts. Therefore, put these parts in the original positions.
5. TAKE CARE TO DEAL WITH THE CATHODE-RAY TUBE
In the condition that an explosion-proof cathoderay tube is set in this equipment, safety is secured against implosion. However, when removing it or serving from backward, it is dangerous to give a shock. Take enough care to deal with it.
1. Unplug the plug from the AC outlet. 2. Remove the antenna terminal on TV and turn on the TV. 3. Insulation resistance between the cord plug terminals and the eternal exposure metal [Note 2] should be more than 1M ohm by using the 500V insulation resistance meter [Note 1]. 4. If the insulation resistance is less than 1M ohm, the inspection repair should be required.
[Note 1]
If you have not the 500V insulation resistance meter, use a Tester.
[Note 2]
External exposure metal: Antenna terminal
HOW TO ORDER PARTS
Please include the following informations when you order parts. (Particularly the VERSION LETTER.) 1. MODEL NUMBER and VERSION LETTER The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be found at the end of the SERIAL NUMBER. 2. PART NO. and DESCRIPTION You can find it in your SERVICE MANUAL.
IMPORTANT
Inferior silicon grease can damage IC's and transistors. When replacing an IC's or transistors, use only specified silicon grease (YG6260M). Remove all old silicon before applying new silicon.
A1-1
CONTENTS
SERVICING NOTICES ON CHECKING ...................................................................................................... HOW TO ORDER PARTS ........................................................................................................................... IMPORTANT ................................................................................................................................................ CONTENTS ................................................................................................................................................. GENERAL SPECIFICATIONS .................................................................................................................... DISASSEMBLY INSTRUCTIONS ............................................................................................................... SERVICE MODE LIST ................................................................................................................................. CONFIRMATION OF USING HOURS ......................................................................................................... NOTE FOR THE REPLACING OF MEMORY IC ........................................................................................ ELECTRICAL ADJUSTMENTS .................................................................................................................. MAJOR COMPONENTS LOCATION GUIDE ............................................................................................. BLOCK DIAGRAM ...................................................................................................................................... PRINTED CIRCUIT BOARDS MAIN/CRT/STEREO JACK ............................................................................................................... MAIN/CRT ......................................................................................................................................... SCHEMATIC DIAGRAMS MICON/TUNER .................................................................................................................................. CHROMA ........................................................................................................................................... DEFLECTION/CRT ............................................................................................................................ TV POWER ........................................................................................................................................ SOUND AMP ..................................................................................................................................... AV ..................................................................................................................................................... STEREO JACK ................................................................................................................................. WAVEFORMS ............................................................................................................................................. MECHANICAL EXPLODED VIEW .............................................................................................................. MECHANICAL REPLACEMENT PARTS LIST .......................................................................................... ELECTRICAL REPLACEMENT PARTS LIST ............................................................................................
A1-1 A1-1 A1-1 A2-1 A3-1~A3-4 B-1 C-1 C-1 C-1 D1-1~D2-1 D3-1 E-1, E-2 F-1, F-2 F-3, F-4 G-1, G-2 G-3, G-4 G-5, G-6 G-7, G-8 G-9, G-10 G-11, G-12 G-13, G-14 H-1, H-2 I-1 J1-1 J2-1, J2-2
A2-1
GENERAL SPECIFICATIONS
G-1.Outline of the Product 20 inch(508.0mmV):Measured diagonally Color CRT 90 degree deflection G-2.Broadcasting System US G-3.Color System System NTSC M PAL SECAM or Monochrome signal Yes Yes No No
G-4.NTSC Playback(PAL 60Hz) G-5.NTSC 3.58+4.43/PAL60Hz G-6.Antenna Input Impedance VHF/UHF 75 ohm unbalanced G-7.Tuner and Receiving channel Tuner Receiving channel VHF (LOW) (HIGH) (CATV) UHF Tuning System Frequency syn. G-8.Preset Channel -- channels G-9.Intermediate Frequency Picture(fP) Sound (fS) fP-fS G-10.Stereo/Dual TV Sound Yes( NICAM G-11.Tuner Sound Muting G-12.Power Source G-13.Power Consumption: Stand by: Per Year: G-14.Dimensions(Approx.) 600 mm(W) G-15.Weight(Approx.) G-16.Cabinet Material Cabinet Front: 479 Net : Gross: 45.75 MHz 41.25 MHz 4.50 MHz GERMAN Yes 120 95 -8 -V
Contactless Electric tuner Oscar(W/O HYPER) France CATV) 2 ch ~ 6 ch 7 ch ~ 13 ch A5 ch ~ I ch 14 ch ~ 69 ch Voltage syn.
1Tuner System 2Tuner System Oscar(W/ HYPER) Others
J ch~W+29 ch
GGG ch~W+84 ch
Others
MHz MHz MHz USA No AC 50Hz 120 --V V V 60 JAPAN)
MHz MHz MHz No
AC 60Hz Hz Hz
W at AC W at DC W at AC kWh / Year 446
mm(D)
mm(H)
21.0 kg ( 46.3 lbs) 23.8 kg ( 52.5 lbs) PS ABS PS ABS 94HB 94V2 94V0 94HB 94V2 94V0 DECABROM NON-DECA DECABROM NON-DECA
Back Panel:
A3-1
GENERAL SPECIFICATIONS
G-17.Protector: G-18.Regulation Safety UL BS SEMKO NOM Radiation FCC SABA CNS X-Radiation PTB G-19.Temperature Operation Storage G-20.Operating Humidity G-21.Clock and Timer Sleep Timer On/Off Timer Wake Up Timer G-22.Timer back up Time More than G-23.Terminals VHF/UHF Antenna Video Input(Front) Video Input(Rear) Video Output(Rear) Audio Input(Front) Audio Input(Rear) Audio Output(Rear) 21 Pin Head Phone Jack(ø3.5) Diversity G-24.Indicator ( Power ) ( Stand By ) ( On Timer ) NONE Din Type F-Type Phono Jack (RCA ø8.3) Phono Jack (RCA ø8.3) Phono Jack (RCA ø8.3) Phono Jack (RCA ø8.3)x2 Phono Jack (RCA ø8.3)x2 Phono Jack (RCA ø8.3)x2 DC Jack(Center +) AC Outlet S Input(Front) France Type BNC BNC BNC Power Fuse
CSA NF NZ AS3159 DOC SI CISPR13 DHHS 5 -20 ºC~ ºC~
SAA NEMKO HOMOLO DENTORI FTZ NF DENTORI HWC 40 ºC 60 ºC Less than Yes Max Yes Yes -80
SI FEMKO SABS UNE PTT NZ AS/NZS DENTORI
CE DEMKO CNS GOST CE HOMOLO NONE NONE
SEV IEC65 SISIR NONE SEV UNE
%RH 10 Min. Step) No No No
120 Min.( Programs Programs
Minutes (at Power Off Mode)
Ear Phone Jack(ø3.5) Ext Speaker S Input(Rear)
G-25.Display On Screen Display Menu Clock Set( 12H 24H) Hotel Lock Sound 1/2 Guide CH Set CATV V-Chip Control Level Sound Color Tuning Balance Stereo,Audio Output,Bilingual Stereo,Audio Output,SAP Stereo,Audio Output AV Channel Sleep Timer Sound Mute
System Selec Area Code NICAM Auto Off Audio Pin Code Registration Brightness Tint(NTSC Only) Bass Back Light Picture Menu Mid Night Theater GAME Clock Pin Code
On/Off Timer CH Tuning Picture Language Sap On/Off Contrast Sharpness Treble
Hotel Lock
A3-2
GENERAL SPECIFICATIONS
G-26.OSD Language Eng Ger OSD Language Setting Eng Ger Not Applicable G-27.Speaker P o s itio n Size Imp. Power G-28.EXT Speaker : Yes Fre Fre Spa Spa Ita Ita Por Por Jpn Jpn
Front Side Bottom 6 1/3 x 2 1/4 inches 32 ohm x 2 pcs Max 2.5 + 2.5 W 10% 2.0 + 2.0 W (Typical) -W Imp -ohm
G-29.Carton Need No Need Master Carton: Content: ---Set Material: ---/ ---Corrugated Carton Dimensions: ---- mm(W) ---- mm(D) ---- mm(H) Description of Origin Yes No Gift Box AB Double/Brown Corrugated Carton ( with Photo Label) Material AB Double/White Corrugated Carton ( with Photo Label) AB Double Full Color Carton W/Photo 541 mm(H) Dimensions: 660 mm(W) 540 mm(D) Design: As Per BUYER 's Description of Origin: Yes No Drop Test Natural Dropping At 1 Corner / 3 Edges / 6 Surfaces 25cm 31cm 46cm 62cm Height Container Stuffing: 304 Sets / 40' container
80cm
G-30.Accessories Owner's Manual ( W/Guarantee Card) [English/French] AC Plug Adapter Channel Film Battery (UMx ) Remote Control Unit Safety Tip Toll Free Insert Sheet Guarantee Card Audio-Video Cord (RCA) Registration Card Warning Sheet Quick Set-Up Sheet Schematic Diagram Information Sheet U/V Mixer 75 ohm Coaxial Cable ( Single Shield Double Shield) 300 ohm to 75 ohm VHF Antenna Adaptor 21pin Cable Car Cord Rod Antenna One Pole Two Pole ( F-Type Din Type France Type) Loop Antenna ( F-Type Din Type France Type) G-31.Other Features Auto Degauss Auto Shut Off Canal+ CATV(181CH) Anti-Theft Rental Unitext Picture Menu Auto Search CH Allocation SAP Channel Lock Just Clock Function Game Position TopText Mid Night Theater Full OSD Premiere Comb Filter Auto CH Memory Hotel Lock Fastext Closed Caption V-Chip
A3-3
GENERAL SPECIFICATIONS
G-32.Switch Front Power(Tact) System Select Main Power SW Rear AC/DC Degauss G-33.Magnetic Field BV : BH : BV : BH : +0.45G 0.18G -0.15G 0.15G TV/CATV Selector Main Power SW BV BH BV BH : : : : +0.35G 0.30G -0.25G 0.15G BV BH BV BH No Battery UM 4x2 TV/AV Bar Select PAL/SECAM Volume Up Volume Down CH Call CH Down CH Up CH Down/Page Down CH Up/Page Up Page +/Program F/T/B Hold List Rotate Browse Std/Auto Memory Band Select Search Clock/Program Clock/Set Ch Set Set + Set Green Nicam/Mono Tone A/B FM Transmitter Audio Select : : : : +0.25G 0.30G -0.50G 0.30G Channel Up/Reset Channel Down/Enter Sub Power Volume Up/Set Up Volume Down/Set Down Menu:Vol UP+Vol Down
G-34.Remote Control Unit: RC-DW Glow in Dark Remocon Power Source: D.C 3 Total 28 Key Power Stand By 0 1 2 3 4 5 6 7 8 9 10 11 12 1* 2* 0/10 Tone 1/2 Info Mono/Auto TV/Caption/Text Expand Red Cyan Normal Color System Wide Selecy Auto Wide On/Off Picture Position Direct Change/Auto Search Picture Menu
Yes V
Quick View Status Time Select Time Set Muting CH Skip CH1/CH2 Channel Text/Mix/TV Display Cancel Initial Store Reveal Sleep Aft/Skip Preset 5.5/6.5MHz Auto Memory Auto Call Reset Menu Enter Add Delete Yellow Random Tuning Up/Time Text Tuning Down/Reset Navi Back Light Mid Night Theater
A3-4
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF ANODE CAP
Read the following NOTED items before starting work. 3. After one side is removed, pull in the opposite direction to remove the other. NOTE Take care not to damage the Rubber Cap. INSTALLATION 1. Clean the spot where the cap was located with a small amount of alcohol. (Refer to Fig. 1-3.)
* *
After turning the power off there might still be a potential voltage that is very dangerous. When removing the Anode Cap, make sure to discharge the Anode Cap's potential voltage. Do not use pliers to loosen or tighten the Anode Cap terminal, this may cause the spring to be damaged.
REMOVAL 1. Follow the steps as follows to discharge the Anode Cap. (Refer to Fig. 1-1.) Connect one end of an Alligator Clip to the metal part of a flat-blade screwdriver and the other end to ground. While holding the plastic part of the insulated screwdriver, touch the support of the Anode with the tip of the screwdriver. A cracking noise will be heard as the voltage is discharged. Location of Anode Cap
Fig. 1-3 GND on the CRT NOTE Confirm that there is no dirt, dust, etc. at the spot where the cap was located. 2. Arrange the wire of the Anode Cap and make sure the wire is not twisted. 3. Turn over the Rubber Cap. (Refer to Fig. 1-4.)
Screwdriver
CRT Support Alligator Clip
GND on the CRT
Fig. 1-1
Fig. 1-4 4. Insert one end of the Anode Support into the anode button, then the other as shown in Fig. 1-5.
2. Flip up the sides of the Rubber Cap in the direction of the arrow and remove one side of the support. (Refer to Fig. 1-2.) Rubber Cap
CRT Support Fig. 1-2
CRT
Support Fig. 1-5
5. Confirm that the Support is securely connected. 6. Put on the Rubber Cap without moving any parts.
B-1
SERVICE MODE LIST
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter the Service Mode, press both set key and remote control key for more than 1 second. Set Key VOL. (-) MIN VOL. (-) MIN Remocon Key 0 1 Releasing of V-CHIP PASSWORD. Initialization of the factory. NOTE: Do not use this for the normal servicing. POWER ON total hours is displayed on the screen. Refer to the "CONFIRMATION OF USING HOURS". VOL. (-) MIN 6 Can be checked of the INITIAL DATA of MEMORY IC. Refer to the "NOTE FOR THE REPLACING OF MEMORY IC". VOL. (-) MIN 8 Writing of EEPROM initial data. NOTE: Do not use this for the normal servicing. Display of the Adjustment MENU on the screen. Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment). Operations
VOL. (-) MIN
9
CONFIRMATION OF USING HOURS
POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation. 1. Set the VOLUME to minimum. 2. Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second. 3. After the confirmation of using hours, turn off the power.
ADDRESS DATA
INIT CRT ON
00
83 0010
Initial setting content of MEMORY IC. POWER ON total hours.
= (16 x 16 x 16 x thousands digit value) + (16 x 16 x hundreds digit value) + (16 x tens digit value) + (ones digit value)
FIG. 1
NOTE FOR THE REPLACING OF MEMORY IC
If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1.
INI 70 +0 A9 +1 FA +2 A2 +3 09 +4 06 +5 63 +6 24 +7 3B +8 A3 +9 00 +A FF
Table 1 1. Enter DATA SET mode by setting VOLUME to minimum. 2. Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second. ADDRESS and DATA should appear as FIG 1. 3. ADDRESS is now selected and should "blink". Using the SET + or - keys on the remote, step through the ADDRESS until required ADDRESS to be changed is reached. 4. Press ENTER to select DATA. When DATA is selected, it will "blink". 5. Again, step through the DATA using SET + or - until required DATA value has been selected. 6. Pressing ENTER will take you back to ADDRESS for further selection if necessary. 7. Repeat steps 3 to 6 until all data has been checked. 8. When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input. The unit will now have the correct DATA for the new MEMORY IC.
C-1
ELECTRICAL ADJUSTMENTS
1. BEFORE MAKING ELECTRICAL ADJUSTMENTS
Read and perform these adjustments when repairing the circuits or replacing electrical parts or PCB assemblies. CAUTION · Use an isolation transformer when performing any service on this chassis. · Before removing the anode cap, discharge electricity because it contains high voltage. · When removing a PCB or related component, after unfastening or changing a wire, be sure to put the wire back in its original position. Inferior silicon grease can damage IC's and transistors. · When replacing IC's and transistors, use only specified silicon grease (YG6260M). Remove all old silicon before applying new silicon. Prepare the following measurement tools for electrical adjustments. 1. Synchro Scope 2. Digital Voltmeter On-Screen Display Adjustment 1. In the condition of NO indication on the screen. Press the VOL. DOWN button on the set and the Channel button (9) on the remote control for more than 1 second to appear the adjustment mode on the screen as shown in Fig. 1-1.
2. BASIC ADJUSTMENTS
2-1: RF AGC DELAY Place the set with Aging Test for more than 15 minutes. Receive an 65dB monoscope pattern. Connect the digital voltmeter to TP001. Activate the adjustment mode display of Fig. 1-1 and press the channel button (02) on the remote control to select "RF DELAY". 5. Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 3.1V. 1. 2. 3. 4. 2-2: CUT OFF 1. Adjust the unit to the following settings. R.DRIVE=10, B.DRIVE=10, R.BIAS=64, G.BIAS=64, B.BIAS=64, BRIGHTNESS=110, CONTRAST=90. 2. Place the set with Aging Test for more than 15 minutes. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (01) on the remote control to select "CUT OFF". 4. Adjust the Screen Volume until a dim raster is obtained. 2-3: FOCUS 1. Receive the monoscope pattern. 2. Turn the Focus Volume fully counterclockwise once. 3. Adjust the Focus Volume until picture is distinct. 2-4: WHITE BALANCE NOTE: Adjust after performing CUT OFF adjustment. 1. Place the set with Aging Test for more than 15 minutes. 2. Receive the white 100% signal from the Pattern Generator. 3. Using the adjustment control, set the brightness and contrast to normal position. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (10) on the remote control to select "R.BIAS". 5. Using the VOL. UP/DOWN button on the remote control, adjust the R.BIAS. 6. Press the CH. UP/DOWN button on the remote control to select the "R.DRIVE", "B.DRIVE", "G.BIAS" or "B.BIAS". 7. Using the VOL. UP/DOWN button on the remote control, adjust the R.DRIVE, B.DRIVE, G.BIAS or B.BIAS. 8. Perform the above adjustments 6 and 7 until the white color is looked like a white. 2-5: SUB TINT/SUB COLOR 1. Receive the color bar pattern. (RF Input) 2. Connect the oscilloscope to TP023. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (16) on the remote control to select "TINT". 4. Press the VOL. UP/DOWN button on the remote control until the waveform becomes as shown in Fig. 2-1. 5. Connect the oscilloscope to TP022. 6. Press the CH DOWN button once to set to "COLOR" mode. 7. Press the VOL. UP/DOWN button on the remote control until the red color level is adjusted to 110% of the white level. (Refer to Fig. 2-2) 8. Receive the color bar pattern. (Audio Video Input) 9. Press the TV/AV button on the remote control to set to the AV mode. Then perform the above adjustments 2~7. D1-1
TV
00 OSD
15 Fig. 1-1
2. Use the Channel UP/DOWN button or Channel button (0-9) on the remote control to select the options shown in Fig. 1-2. 3. Press the MENU button on the remote control to end the adjustments. NO. 00 01 02 03 04 05 06 07 08 09 10 11 12 FUNCTION OSD H CUT OFF RF DELAY VIF VCO H VCO H PHASE V SIZE V SHIFT R DRIVE B DRIVE R BIAS G BIAS B BIAS NO. 13 14 15 16 17 18 19 20 21 22 23 24 FUNCTION BRIGHTNESS CONTRAST COLOR TINT SHARPNESS FM LEVEL LEVEL SEPARATION 1 SEPARATION 2 TEST MONO TEST STEREO X-RAY TEST Fig. 1-2
ELECTRICAL ADJUSTMENTS
2-9: OSD HORIZONTAL 1. Activate the adjustment mode display of Fig. 1-1. 2. Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum. (Refer to Fig. 2-3) Fig. 2-1 TV
0% 00 OSD 110% A 100% Fig. 2-2 2-6: HORIZONTAL PHASE 1. Receive the center cross signal from the Pattern Generator. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (05) on the remote control to select "H PHASE". 4. Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on right and left becomes minimum. 2-7: VERTICAL SIZE NOTE: Adjust after performing adjustments in section 2-6 1. Receive the crosshatch signal from the Pattern Generator. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (06) on the remote control to select "V SIZE". 4. Press the VOL. UP/DOWN button on the remote control until the rectangle on the center of the screen becomes square. 5. Receive a broadcast and check if the picture is normal. 2-8: VERTICAL SHIFT NOTE: Adjust after performing adjustments in section 2-7 1. Receive the crosshatch signal from the Pattern Generator. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (07) on the remote control to select "V SHIFT". 4. Press the VOL. UP/DOWN button on the remote control until the horizontal line becomes fit to the notch of the shabow mask. 2-10: VIF VCO 1. Place the set with Aging Test for more than 15 minutes. 2. Connect the digital voltmeter to pin 5 of CP601. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (03) on the remote control to select "VIF VCO". 4. Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.5V. 2-11: CONSTANT VOLTAGE 1. Using the remote control, set the brightness and contrast to normal position. 2. Connect the digital voltmeter to TP401. 3. Set condition is AV MODE without signal. 4. Adjust the VR501 until the digital voltemeter is 130 ± 1V. 2-12: SEPARATION 1, 2 1. Receive the stereo broadcasting signal. 2. Connect the AC voltmeter to AUDIO OUT JACK through stereo filter (L=400Hz, R=2KHz). 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (20) on the remote control to select "SEPARATION 1". 4. Press the VOL. UP/DOWN button on the remote control until the output of L-CH and R-CH become minimum. 5. Press the CH UP button once to set to "SEPARATION 2" mode. 6. Press the VOL. UP/DOWN button on the remote control until the output of L-CH and R-CH become minimum. B Fig. 2-3 15
D1-2
ELECTRICAL ADJUSTMENTS
3. PURITY AND CONVERGENCE ADJUSTMENTS
NOTE 1. Turn the unit on and let it warm up for at least 30 minutes before performing the following adjustments. 2. Place the CRT surface facing east or west to reduce the terrestrial magnetism. 3. Turn ON the unit and demagnetize with a Degauss Coil. 3-1: STATIC CONVERGENCE (ROUGH ADJUSTMENT) 1. Tighten the screw for the magnet. Refer to the adjusted CRT for the position. (Refer to Fig. 3-1) If the deflection yoke and magnet are in one body, untighten the screw for the body. 2. Receive the green raster pattern from the color bar generator. 3. Slide the deflection yoke until it touches the funnel side of the CRT. 4. Adjust center of screen to green, with red and blue on the sides, using the pair of purity magnets. 5. Switch the color bar generator from the green raster pattern to the crosshatch pattern. 6. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets. 7. Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets. 8. Adjust the crosshatch pattern to change to white by repeating steps 6 and 7. 3-2: PURITY NOTE Adjust after performing adjustments in section 3-1. 1. Receive the green raster pattern from color bar generator. 2. Adjust the pair of purity magnets to center the color on the screen. Adjust the pair of purity magnets so the color at the ends are equally wide. 3. Move the deflection yoke backward (to neck side) slowly, and stop it at the position when the whole screen is green. 4. Confirm red and blue colors. 5. Adjust the slant of the deflection yoke while watching the screen, then tighten the fixing screw. DEFLECTION YOKE DEFLECTION YOKE SCREW MAGNET SCREW 3-3: STATIC CONVERGENCE NOTE Adjust after performing adjustments in section 3-2. 1. Receive the crosshatch pattern from the color bar generator. 2. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets. 3. Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets. 3-4: DYNAMIC CONVERGENCE NOTE Adjust after performing adjustments in section 3-3. 1. Adjust the differences around the screen by moving the deflection yoke upward/downward and right/left. (Refer to Fig. 3-2-a) 2. Insert three wedges between the deflection yoke and CRT funnel to fix the deflection yoke. (Refer to Fig. 3-2-b) RGB RGB
R G B
R G B RIGHT/LEFT SLANT
UPWARD/DOWNWARD SLANT Fig. 3-2-a
WEDGE
WEDGE
WEDGE WEDGE POSITION Fig. 3-2-b
PURITY MAGNETS 6 POLE MAGNETS 4 POLE MAGNETS Fig. 3-1
D2-1
MAJOR COMPONENTS LOCATION GUIDE
VR501
CP601
TU001 FB401 TP001
FOCUS VOLUME SCREEN VOLUME MAIN PCB
TP023 J801 TP022
CRT PCB
D3-1
BLOCK DIAGRAM
SOUND AMP IC IC852 AN5829S TONE CONTROL IC IC854 M62420SP REGULATOR 9V IC IC853 KIA78L09BP-AT 1 14 22 21 23 18 19 3 2 9 10 2 19 14 7 20 3 +12V Q352 MUTE SW.
Q852 BUFFER
Q851 BUFFER
Q705 MUTE Q701
Q707 MUTE TU001 IF 11 AGC 1
Q351 MUTE SW. IF/CHROMA AUDIO IC IC601 M61203CFP Q610 BUFFER 55 VREG VCC VIF VIDEO OUT 57 X' TAL 32 X602 3.579545MHz IC351 LA4600 8 10 SOUND AMP IC 1 3 SPEAKER SP355 SPEAKER SP354
J702 2
MUTE_SW
6
Q702
MUTE_SW
CF601 MICON IC IC101 OEC7044C 4 2 6 SAW FILTER
62 RF AGC OUT 64 VIF IN 1 VIF IN R 42 G 41 B 40 30 R IN 28 G IN R OUT 14 G OUT 15 B OUT 16
Q706 BUFFER
Q801 RED OUT Q802 GREEN OUT Q803 BLUE OUT TV/Y IN 36 8.7V REG OUT 33 Q603 Q606 REG AT+10V AT+5V
2
4 J704
CH DOWN 5 VOL DOWN POWER 27 KEY1 CH UP CVIN 17 OS101 REMOCON 10 26 KEY2 3 EXT MUTE 38 AV2 37 AV1 Xin 19 Xout 20 H. SYNC 1 V. SYNC 2 AT+5V 1 2 3 AUDIO MUTE
J703
20 B IN 12 INV FBP OUT 29 V PULSE OUT 10 5 6 SDA SCL FPB IN
2 7
5
3
1
4 6
VIDEO AMP IC IC703 NJM2234L
VOL UP
X101 CSTS0800MG03-T2
MEMORY IC IC199 S-24C02BDP-1A
36 POWER
5.7V REG OUT(FOR CPU) 41 13 POWER ON CONT Y SW OUT 40 17 V OUT H OUT 7 2 VIF Vcc 5V REG 39
BUFFER
SDA 5
SCL 6
34 SCL 1 32 SDA 1 L503 DEGAUSS COIL TH501 VCC 2 PUMP UP AMP + 1 F501 AC IN D501~D504 RECTIFIER IC506 TLP621(D4-GR-LF2) FEED BACK
T502
V-OUT IC IC401 LA78040
Q402 H. DRIVE Q401 H. OUTPUT
11 B Heater 10
6 G
8 R CRT V801
F
7
7
3
6
5
VR501
Q507 FEED BACK SW.
Q501, Q502 SW.
7 3
12
DY Q601
STEREO+5V
Q604 REG Q605 REG
TUNER+5V FB401 3 1 9 5 FBT 10 F S HV 4 +12V
+B ADJ.
REG
E-1
2
E-2
PRINTED CIRCUIT BOARDS MAIN/CRT (INSERTED PARTS)
SOLDER SIDE
STEREO JACK
SOLDER SIDE
D402 R424 R408
D605 D404 W096 D411 R409 C434 C404 C406 R403_1 C435
CD701
CD352
D401 W097
CD353 W001
J703_1
J704_1 R724_1 W142 R711 R721 D709 R720
W137
C003
W143 TP001 C706_1 D001 D706 W027
W860
W861 J702_1 W139
CP802A
W140
W141 C722
W123
C870 C405
R421 R429_1
R405
C720_1 C704 D701 C703 C730
D705 W138 R445 R760 C712_1 C448 R426
D410 D406
D708 C719_1 IC703
C726 C002
D707 W132 W129
D703
IC853 W811 W098 C403 C430
R401
D400
W131 W155
D405 CP401
R4
L401
C401_1
TU001 C427 C422 R416 C414 W106 W094 C418 C443 W897 C444_2 W092 CP601 W119 CP701B W118 C701 W117 W116 R001_1 W060 W057 W113 W112 W056 R446 W105 W032 W028 W130 W002 W003 W114 W148 W156 W825 W021 W101 W102 W103 W031 W055 TP601 C656 W152 C869 D609 W070 D606 W024 R630 R631 L603 W025 R641 C853 C854 CF604 R643 W014 W041 C604 L601 CF601 C601 W069 C612_1 D610 W007 W008 W067 D608 W006 L606 L607 W832 C606 L605 C658 OS101 C857 C861 D602 C855 C603 C865 C860 W012 C632 C605 D601 C620 CF603 W005 C619 W818 W004 W149 C635 C655 Q604 IC199 L608 Q601 W035 C624 R627 S803X W158 W154 C885 C871 W153 W109 W110 IC854 IC351 W023 C357 W834 C360 S803Y C352 W160 C350 C519_1 CP703B W043 R623 C875 C353 W859 VR501 C876 S801Y W104 C702 D702 D711 W108 W107 W058 W115 R702 C872 W089 C873 Q606 W015 D607 R407 D403 W810 HS401 R427 HS402 W829 L851 W086 W087 W088 W083 C644 Q605 W040 C630 C622 C640_1 C638 X602 W010 W009 C613 C614 W077 W076 C625 W079 W078 SW105
04
W090
FB401_1 W091 C437
L410
C413 W831
R423
W891 Q401_1
IC401
W093
HS501 R505
D512 D507 R509 T502 D508 W806 D506 C501 Q502 R506 C514_1
Q501
T401
C429_1
C446 R428
R417
R418 C417 R360 Q603 W837
D509 R504
C511
C440 Q402 C439
C509
C510 D528 IC506
W049 C526 R542 D513
W100 W001 S801X W805 HS351
W022 W085 W013
Q507
D501 CP502 D502 D503 W845 R515_1 R501_1 D505 C516 W050
R363 C512 C521_1 W053 D514 W807 R514_1 R520 D518 C517_2
D504 C503 C502 TH501_1 C507_1 D515 W821
D510
C645 W095 W074 W073 W072 W026 W064 W071 W011 C705 W075 C610
W082 W157
R632 C515 D519 W840 W019 W020 C115 W038 C124 C122 W036 W037 W046 W016 W801 W039 W030 CC002 W145 C118 X101 SW103 L101 R131 W146 W045
R5
17
_1
W151
W150
CP802B
C801 C819_1 CP806_1 CP801_1 Q803_1 R806 Q801_1 TP024 R802 TP022 TP023 R804 FH502 R500_2 Q802_1 L801 L501_2
C5 05
J8
01
F501
R805
FH501
R803
W048
R807
SW104
C123 CC003
W063
5A125V
CP501
SW107
SW106
F-1
F-2