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MT1120S

Memorex MT1120S Service Manual

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SERVICE MANUAL
COLOR TELEVISION RECEIVER
ORIGINAL
MFR’S VERSION E
MT1120S
Design and specifications are subject to change without notice.
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
R.SIGNAL G.SIGNAL B.SIGNAL
DEFLECTION SIGNAL
X101
CSTS0800MG03-T2
1
2
3
IC101 OEC7044C
MICON IC
110111213141516171819 22021
22 23 24 25 26 27 28 29
3
30 31 32 33 34 35 36 37 38 39
4
40 41 42
56789
SW106
SKHVBED010
14/20 POWER
SW107
SKHVBED010
20 VOL DOWN
SW103
SKHVBED010
20 VOL UP
SW105
SKHVBED010
20 CH UP
SW104
SKHVBED010
14 CH UP
20 CH DOWN
IC199
S-24C02BDP-1A
MEMORY IC
1234
5678
TP001
JWF-50K-1
AGC
R001_1
33K 2W
L101
3.3uH
TM101
RC-DW040
D001
HZ30-3L
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARESINCE THESE PARTS MARKED BYCAUTION:
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
ETANTLES PIECES REPAREES PAR UNATTENTION:
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
GNDB+Vout
OS101
PIC-28143SY-2
123
R123 4.7K
R133
1.5K
R130 1K
R114
220
R111
220
R106 3.3K
R105 3.3K
R119
1K
R131
47 1/4W
R115
47K
R007 270
R109
4.7K R116
47K
R117
4.7K
R124
4.7K
R104
560
R103
560
R102
560
R120 4.7K
R121 4.7K
R122 4.7K
R110
1K
R006 270
R132 47K
R127 47K
R107
10K
R113
2.2K
R112
2.2K
R134 10K
R129
680K
R135
10K
R101
560
R126
2.7K
R128
560
R137
2.7K
C123
1016V KA
C003
4.750V KA
C002 4706.3V YK
C122
150V KA
C124
0.150V KA
C129
220P
CH
C121_1
200P CH
C117_1
47P CH
C116_1
47P CH
C120
0.001 B
C128
220P B
C127
220P B
C125
0.01 F
C103
0.1 F
C101
0.022 F
C001 0.01 F
C004
0.022 F
C119
0.1 F
C130
100P CH
C115
0.68 TF
C114
10P CH C113
10P CH
C118
4706.3V YK
TU001 ENV56D66G3
1
10
11
12 13
14 15
23456
7
8
9
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.
NOTE:
TUNER VIDEO SIGNAL
W801
W837
AGC
TUNER+5V
IF
SYNC
I2C_OFF
Y_VIDEO
VD
HD
OSD_R
OSD_G
OSD_B
OSD_BLK
GND
POWER
AT+5V
AFT
SCL
SDA
RESET
X-RAY
+B
SDA
SCL
AUDIO_MUTE
AV1
AV2
EXT_MUTE
G-2G-1
(MAIN PCB)
MICON/TUNER SCHEMATIC DIAGRAM
TO AV
FROM/TO SOUND AMP
FROM TV POWER
FROM DEFLECTION/CRT
FROM/TO CHROMA
ACCESSORY
TMX474
PCB010
NC
NC
NCNC
NC
V.S
RESET
X-RAY
AD4/AFT
RED R
GREEN G
BLUE B
OUT1/BLANK BL
P20/AV2
P21/AV1
P22/POWER
P10/DEGAUSS_H
SCL1
SCL2
SDA1
SDA2
AD1/X_RAY_TEST
AD5/KEY1
AD6/KEY2
OSC1
OSC2
VCCVSS
Xout
Xin
CNVSS
CVIN
V.HOLD
HLF
P04
P24
P23/SYNC
INT1/REMOCON
INT2/P.FAIL
P05/(Center_SP)
P03/(Surround)
P01/I2C_OFF
P00/EXT MUTE
P51/V.SYNC
P50/H.SYNC
P02/AUDIO MUTE
NC
NC
NC
NC
NC
1.3
6.2
4.6
0.0
0.0
0.0
5.0
5.0
5.0
30.0
AGC
ADRES
SCL
SDA
BPL
BTL
IF
NC
E0
E1E2VSS
VCC
MODE
SCL
SDA
5.0 5.0
0.0 0.0 0.0 0.0
0.0
5.2
5
0
5
3.2
0
0
0
5
5
4.2
4.4
0
3.9
0
3.6
0.8
2.2
5.6
P25/ON_TIMER
AVCC
4.8
4.8
4.8
0
0
5.2
5.2
5.2
5.2
0
2.8
5.2
5.2
5.2
3.6
4.4
5.2
1
2
3
4
5.0
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
LUMINANCE SIGNAL
AUDIO SIGNAL
R.SIGNAL
G.SIGNAL
B.SIGNAL
DEFLECTION SIGNAL
X602
3.579545MHz
L603
100uH
CP601
173979-6
1
2
3
4
5
6
CF604
TPS4.5MB
CF603
SFSH4.5MCB
IC601
M61203CFP
IF/CHROMA AUDIO IC
1 10111213141516
17 18 19
2
20 21 22 23 24 25 26 27 28 29
3
30 31 32
333435363738394404142434445464748
49
5
50515253545556575859
6
6061626364
789
OUTOUTGININ
CF601
SAF45MFY220ZR
SAW FILTER
12345
R641
22K +-1%
C638
0.4750V KANP
Q604
2SD734
REG
Q605
2SD734
REG
Q601
2SD734
REG
Q603
2SD734
BUFFER
Q606
2SD734
REG
Q610
2SC2412K
BUFFER
D601
1SS133
D605
11E1-EIC
D607
1SS133
CC003
TP601
JWF-50K-1
AUDIO_DET
L608 6.8uH
L605
1uH
L601
1.2uH
L607
15uH
L606
1uH
D606 MTZJ12B
D602
MTZJ8.2B
D610
MTZJ6.8B
D608 MTZJ12B
D609 MTZJ12B
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
R631 100 1/4W
R630 100 1/4W
R627 100 1/4W
R611
10K
R617
2.7K
R613
100
R624 2K
R648
100
R626
10K
R635 100
R603
1.5K
R621
2.2K
R634
10K
R609
330
R642
390K
R625 2.2K
R619 2.2K
R632
100 1/2W
R639
100
R628
100
R629
100
R623
120 1/4W
R644 100
R622
220
R615
470
R606
10K
R638 12K
R646
47K
R633
8.2K
R618 10M
R602
1K
R601
4.7K
R604 100
R637 1K
R650
1.8K
R636
33K
R605 4.7K
R614 2.2K
R647
100
R640
470
R643
1.2K
R645
10
R616
82
R652
18
C601
22006.3V YK
C640_1
4716V YK
C612_1
100016V YK
C605
0.4750V KA
C624
4716V YK
C632 2.250V KA
C645
476.3V KA
C614
4710V KA
C630
4710V KA
C635
4716V KA
C619
2.250V KA
C610
0.2250V KA
C644
10010V YK
C625
150V KA
C606
0.2250V KA
C603 150V KA
C604
150V KA
C655
0.2250V KA
C656
2.250V KA
C658
10006.3V YK
C620
0.0068 M
C647_1 0.01 B
C623_1 120P CH
C651_1
100P CH
C650 220P B
C613
1TF
C634
0.01 F
C636
0.01 F
C616
15P CH
C631
0.01 F
C622 0.015 M
C621 0.01 F
C607 0.01 F
C626 0.001 B
C653
0.1 F
C648
0.1 F
C652
0.1 F
C661
0.01 F
C618
100P CH
C639
0.01 F
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.
NOTE:
TUNER VIDEO SIGNAL
W832
W818
W840
W843
AT+10V
Y_VIDEO
VIDEO_IN
VIDEO
STEREO+5V
AUDIO_DET
FBT+8V
V_OUT
ABCL
V_FEEDBACK
GND
H_OUT
H_SYNC
B.OUT
IF G.OUT
Y_VIDEO
AT+5V R.OUT
SYNC
TUNER+5V CLAMP
RESET
AFT AGC GND
HD POWER OSD_B
OSD_BLK
OSD_G
VD OSD_R
I2C_OFF
SDA SCL
AT+5V
7
6
FROM/TO MICON/TUNER
TO AV
FROM/TO AV
G-4G-3
(MAIN PCB)
CHROMA SCHEMATIC DIAGRAM
TEST POINT
INT.MONI
B.OUT
IIC_OFF
SDA
SCL
GND
FROM/TO DEFLECTION/CRT
TO SOUND AMP
FROM TV POWER
PCB010 TMX474
8.7
8.1
11.3
3.8
5.5
4.3
5.6
NC
Y SW OUT
ACL/ABCLAUDIO OUT
46 SW REG CONT
16 B OUT
17 V OUT
1 VIF IN
64 VIF IN
32 X’TAL
33 8.7V REG OUT
34 EXT C in
49 QIF OUT
48 IF AGC
47 LIMITER IN
5.7V REG OUT(FOR CPU)
VIF Vcc
MCU RESET
INTELLIGENT MONI
RF AGC FILTER
G OUT
SPOT KILLER
FAST BLK
VIDEO/CHROMA GND
5v REG
TV/Y IN
CHROMA APC FILTER
R IN
V PULSE OUT
G OUT
fsc OUT
VIDEO CHROMA Vcc
V RAMP CAP
V RAMP FEEDBACK
B IN
STRAT UP Vcc
POWER ON CONT
INV FBP OUT
H VCO F/B
SDA
H OUT
DEF
AFC FILTER
R OUT
Hi Vcc
FM DIRECT OUT
EXT AUDIO IN
AUDIO BYPASS
VIF VCO F/B
VREG Vcc
VIF APC FILTER
QIF IN
VIF VIDEO OUT
VIF GND
AFT OUT
RF AGC OUT
SCL
FBP IN
NC
8.9
2.3
2.9
4.9 8.2
4.9 8.2
5.6
8.2
4.9
5.6
2.3
2.2
3.6
3.2
8.8
2.8
2.6
0
0
2.6
2.8
2
2.6
1.5
1.6 55 2.6 4.8 6.4 6.4 0 0 5 5 5 5 2.8 2.5 2.6
4.6
8
8
3
6
0
5
5
7.2
0
0
5
0
2.2
3.6
2 8.53.22.8005.63.28.64.9488122.6
8
9
10
12
11
13
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
R.SIGNAL
G.SIGNAL
B.SIGNAL
DEFLECTION SIGNAL
L401 ELH-5L50N1431
CP401
B05B-DVS
1
2
3
4
5
R428 8.2K 5W
IC401 LA78040V-OUT IC
1234567
R429_1
3.3 2W
R423
68 1/2W
CP806_1
005P-2100
1
Q401_1
2SD2499(LBOEC1)
H.OUTPUT
B
G
R
11
6
8
10
9
175
V801
A51LMU50X50N45
CP801_1
TS-80P-02-V1
1
2
HS402
763WSA0015
HS401
763WSA0015
CP802B
51048-1000
1
10
2
3
4
5
6
7
8
9
CP802A
51048-1000
1
10
2
3
4
5
6
7
8
9
F
J801
HPS3200-010501
1
3
4
5
6
7
8
9
VIDEO
8
E8
E25
E12
GND
TER
HEA
AFC
B+
GND
ABL
GND
COL
HV
F
S
FB401_1 3221016
1
10
11
2
3
4
5
6
7
8
9
T401
305Y001
1
2
34
6
S801
CD801
8M82025A
L801
220uH 0607
R417
11K +-1%
R418
33K +-1%
R409
5.6K +-1%
R424
6.8K +-1%
R401
100K 1/4W
+-1%
R408
12K +-1%
R405
22K 1/4W
+-1%
Q402
2SC2621
H.DRIVE
Q801_1 2SC4217
RED OUT
Q802_1
2SC4217
GREEN OUT
Q803_1
2SC4217
BLUE OUT
D405
AU02A-EIC
D410
AU02A-EIC
D403
11E1-EIC
D400
AU02A-EIC
D406
AU02A-EIC
D411
AU02A-EIC
CC002
TP023
TP022 TP024
R404
1K 1W
R807 12K
2W
R805 12K
2W
R803 12K
2W
L410
4.7mH 0909
D402
HZ11B1L
D401
HZ27-1L
D404
MTZJ6.2B
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARESINCE THESE PARTS MARKED BYCAUTION:
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
ETANTLES PIECES REPAREES PAR UNATTENTION:
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
R403_1
6.8K 1/2W
R416
1 1/2W
R427
100 1/4W
R446
4.7K
1/2W
R806 2.7K
1/4W
R804
2.7K 1/4W
R802 2.7K
1/4W
R445 220K
1/4W
R421
220K1/4W
R407
2.2 1/2W
R420
3.3K
R419
1.8K
R406
2.2K
R426
1K 1/4W
R814 330
R816 2.2K
R809 330R813 3.9K
R811 330R815 3.9K
C405
47016V YK
C413
1250V YK
C446 1160V MHE
C403
100035V YK
C448
22
200V
MHE
C434
22100V YK
C418
1000
25V YK
C414
10035V
YK
C404
47016V YK
C435
0.1
100V
TF
C443
0.00821.6KV
ECWH
C429_1
22P500V
SL
C422
0.15
100V
TF
C440 0.0022500V
B
C439
22P500V
SL
C411_1
150P CH
C430
0.012100V
M
C801
330P B
C406
22P500V SL
C804 560P B
C805 560P B
C806 820P CH
C819_1
0.0012KV B
C444_2
220P2KV YR
C437
0.33250V
PMS
C401_1
0.0012KV YR
C427
1050V MHE
C417
2.250V
MHE
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.
NOTE:
W811
W810
W891W831
W897
GND GND
CLAMP
CLAMP CLAMP
G.OUT
G.OUT G.OUT
R.OUT
R.OUT R.OUT
B.OUT
B.OUT B.OUT
FBT+8V
HEATER HEATER
GND GND
180V 180V
+12V
X-RAY
GND
V_FEEDBACK
V_OUT
ABCL
H_OUT
H_SYNC
+B
GND
17
TCX335
FROM CHROMA
G-6G-5
DEFLECTION/CRT SCHEMATIC DIAGRAM
(MAIN PCB)
TO DY
FROM TV POWER
FROM/TO CHROMA
TO MICON/TUNER
TO SOUND AMP
0
0
130.0
NC
0.3 0
27.0
NC
PCB110
SCREEN
FOCUS
0.3
0
137.0
130.0
0
0
0
NC
UP
PUMP
+
PROTECTION
THERMAL
FOCUS
SCREEN
NC
NC
NC
NC
101.6
0
0
6.4
0
96.4
128.0
3.2
2.7
126.0
3.2
2.7
120.5
2.7
3.2
99.6
PCB010 TMX474
1
2
-
4.5 25 25 0 24 48 4.8
14
19
18
15
16
20 21 22
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
IC506
TLP621(D4-GR-LF2)
FEED BACK
1
2
34
F501
5A125V
233005-MB000
FH502
EYF-52BC
FH501
EYF-52BC
CP501
THL-P03P-B1
12
L501_2
1R5A102F20
12
34
BLADE
WIDE
BLACK
WHITE
21
CD501_1
120R614914
120V 60Hz
VR501
470
+B ADJ.
PH
TH501_1
PTAD14K2-3R0Q141
123
S
D
G
Q501
2SK2662
SWITCHING
21
L503
8R200026
DEGAUSS COIL
5A 125V
5A 125V
T502
81290604
1
10
11
12
13
14
15
16
2
3
4
5
6
7
9
R501_1
2.2 7W
CP502
TV-50P-02-A1
1
2
HS501
763WAA0083
Q507
2SC1740SP
FEED BACK SWITCHING
Q502
2SC2120Y
SWITCHING
D512
1SS133
D518
1SS133
D514
1SS133
D519
1SS133
D510
RU2AM
D508
1SS133
D513
11EQS04N
D504
RM11C-EIC
D503
RM11C-EIC
D501
RM11C-EIC
D502
RM11C-EIC
D505
21DQ09N
D515
21DQ09N
R542
0.47 1W
R504
39 3W
R505
220 1W
R517_1
2.7 2W
D506
MTZJ15B
D507
MTZJ15B
D528
MTZJ5.6B
D509
MTZJ18B
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARESINCE THESE PARTS MARKED BYCAUTION:
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
ETANTLES PIECES REPAREES PAR UNATTENTION:
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
R509
1.8K 1/4W
R500_2
2.7M 1/2W
+-10%
R508
2.7K
R512
2.2K
R520
150K 1/2W
R519
330
R506
1K
1/4W
R516
470
R513
5.6K
R511
1.2M
R510
1.2M
R518
2.2K
R514_1
39K 1/4W
R515_1
22K 1/4W
C526
470200V USR
C511
150V
KA
C507_1
0.0047250V KH
C505
0.22250V ECQUL
C514_1
680P2KV YR
C501
0.01
M
C512
470P500V B
C509
0.047 M
C503
0.001500V B
C502
0.001500V B
C516
470P500V B
C517_2
470P2KV YR
C510
4716V YK
C515
100016V MHE
C521_1
100160V YXF
C519_1
100025V MHE
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.
NOTE:
W845
W821
W806
W807
SOUND+B
GND
+B
GND
AT+10V
+B
G-8G-7
(MAIN PCB)
TO CHROMA
TO DEFLECTION/CRT
TO MICON/TUNER
TO SOUND/AMP
BLACK
WHITE
CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD
REPLACE ONLY WITH THE SAME TYPE 5A 125V (F501)
ATTENTION: POUR LINE PROTECTION CONTINUE LES RISQUES
D’INCEIE N’UTILISER QUE DES FUSIBLE DE MEME TYPE 5A 125V (F501)
TV POWER SCHEMATIC DIAGRAM
PCB010 TMX474
NC
NC
NC
NC
177
3.6
0
3.6
0.47
0
9.6 0
0.8 8.8
8.8
6
5.5
178
177
8.5
0
8.6
11.8
0
0
161
0
15.3
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
Q852
2SA1037AK
BUFFER
Q851
2SA1037AK
BUFFER
AUDIO SIGNAL
IC853
KIA78L09BP-AT
REGULATOR 9V IC
123
IC351 LA4600SOUND AMP IC
11023456789
IC854 M62420SP
TONE CONTROL IC
110
111213141516171819220
3456789
IC852 AN5829S
SOUND AMP IC
1 101112
13141516171819
2
2021222324
3456789
S803Y S803X
S801YS801X
HS351
763WAA0131
L851
22uH 0607
Q352
2SC2412K
MUTE SW.
Q351
2SC2412K
MUTE SW.
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARESINCE THESE PARTS MARKED BYCAUTION:
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
ETANTLES PIECES REPAREES PAR UNATTENTION:
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
R363
1K 1/4W
R853
220K
R850 2.7M
R859
4.7K
R361
2.7K
R352
2.7K
R858
12K
R860
4.7K
R861
1K
R862
1K
R865
100
R867
100
R864
1.8K
R866
100K
R863
1.8K
R362
4.7K
R360
1K 1/4W
R357
1.8K
R857
12K
R851
2.2K
R852
2.2K
R854
100
R855
100
C854
4.750V KA
C855
4.750V KA
C871
2.250V KA
C869
2.250V KA
C873
4710V KA
C875
2.250V KA
C876
2.250V KA
C870
1016V KA
C853
4.750V KA
C857
1016V TT
+-10%
C861
0.3350V KA
C865
3.316V TT
+-10%
C860
476.3V KA
C353
100016V MHE
C350
100016V MHE
C879
0.022 F
C883
0.47 F
C363_1
0.018 B
C351_1
0.018 B
C874
0.022 F
C888
0.022 F
C881
0.033 B
C886
0.001 B
C882
0.47 F
C880
0.022 F C884
0.033 B
C863
0.022 B
C866
0.1 F
C868
0.1 F
C867
0.1 F
C864
0.1 F
C862
0.047 B
C858
0.022 B
C358_1
0.047 B
C359_1
0.047 B
C885
4716V KA
C357
4716V KA
C352
4.750V MHE
C872
4725V KA
C360
476.3V KA
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.
NOTE:
W834
W825
W859
W805
W829
SCL
SDA
AUDIO_MUTE
SOUND_R
REAR_AUDIO_R
SOUND_L
REAR_AUDIO_L
FRONT_AUDIO_R
FRONT_AUDIO_L
AUDIO_OUT_R
AUDIO_OUT_L
SOUND_OUT_L
SOUND_OUT_R
P.CON+5V
SOUND+B
GND
AUDIO_DET
STEREO+5V
+12V
FROM/TO MICON/TUNER
FROM DEFLECTION/CRT
G-10G-9
(MAIN PCB)
SOUND AMP SCHEMATIC DIAGRAM
FROM CHROMA
FROM TV POWER
FROM/TO AV
0
27
0
0
2.9
4.4
4.24.2
8.9
VR1
VR2
REF REF
REF
5.0
3.8
3.7
0
3.3
3.4
4.4
4.2
5.0
0
4.4
3.3
3.4
4.4
4.2
VR6
S8
TONE
AMP1
AMP2
TONE
6.5K
S5
S3
S6
S4
S7
VR5
VR3
S1
S2
1.8K
1.8K
VR4
6.5K
6.5K
6.5K
VOLAMP2
SIMAMP2
VOLAMP1
SIMAMP1
136K
136K
­+
-
+
-
+
-
+
+
-
-
+
LOGIC
CONTROL
I2C BUS
INTERFACE
4.4
0 1.41.40.98.96.012.18.108.1
P.PVCC STAND-BY
ATT.
FILTER
RIPPLE
OUTPUT GND
INPUT GND
2.3
2.3
3.2
3.2
0
OUTGNDIN
Filter SAPout
75us
De-Emph
Switch
(L-R)/SAP
DAC ZAP
Expand
Wide Band
Cancel Offset
Cancel Offset
Matrix
AGC
OUT SW
fH.2fH Trap Filter
L-R Filter L-R Demod
IIC Decoder
L+R DemodL+R Filter
Filter
Wide Band
RMS Det
Wide Band
Demod
SAP
dbx De-Emph
Expand
Spectral
Vcc
Pilot
Cancel
St.PLL
Det
Pilot
VCA
Input
GND
Filter Stereo
Det SAP
Filter
Spectral
Filter Noise
Filter
SAP
RMS Det
Spectral
Det
Noise
NC
1.5 2.4 2.4 0.7 5 2.4 2.4 0.7 2.2 2.2
2.7 2.7
5 4.9 0 3.5 3.5 2.5
3.5
11.7 0 9.1
0.6
0
0
28
26
25
PCB010 TMX474
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
CAUTION: DIGITAL TRANSISTORCAUTION: DIGITAL TRANSISTOR
Q702
DTC114EK
MUTE_SW
Q701
DTA144EKA
MUTE_SW
CP703B 8283_0512_00_000
1
2
3
4
5
IC703 NJM2234LVIDEO AMP IC
12345678
CP701B 8283_0812_00_000
1
2
3
4
5
6
7
8
EE
H1NCH1H2
J703_1
AV3-19DS-1
R_A/V_IN (STEREO)
1
234
5
6
EE
H1NCH1H2
J704_1
AV3-19DS-1
R_A/V_OUT (STEREO)
1
2
34
5
6
Q706
2SA1037AK
BUFFER
AUDIO SIGNAL
Q707
2SC2412K
MUTE
Q705
2SC2412K
MUTE
D701
MTZJ12B
D707
MTZJ6.8B
D702
MTZJ6.8B
D709
MTZJ6.8B
D706
MTZJ6.8B
D705
MTZJ12B
D711
MTZJ6.8B
D708
MTZJ6.8B
D703
MTZJ12B
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
R724_1
75 1/4W
R711
1K 1/4W
R709
1K
R749
2.2K
R703
1K
R704
1K
R716
1K
R760
47 1/4W
R729
1K
R727
1K
R708
75
R702
10 1/4W
R721
1K 1/4W
R720
1K 1/4W
R740
75
C712_1
47010V YK
C720_1
1050V YK
C706_1
150V YK
C704
1016V KA
C703
1016V KA
C705
4.750V KA
C702
1016V KA
C701
1016V KA
C719_1
1050V YK
C708
33P CH
C707
0.022 F
C726
1016V KA
C730
1016V KA
C722
47010V YK
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.
NOTE:
TUNER VIDEO SIGNAL
W814
W808
A_IN_R
FRONT_AUDIO_R
GND
A_IN_L
FRONT_AUDIO_L
GND
GND
FRONT_VIDEO_IN
GND
REAR_AUDIO_R
REAR_AUDIO_L
AUDIO_OUT_R
AUDIO_OUT_L
GND
SOUND_OUT_L
SOUND_OUT_R
P.CON+5V
EXT_MUTE
AV2
AV1
VIDEO
VIDEO_IN
Y_VIDEO
AT+5V
FROM/TO SOUND AMP
FROM MICON/TUNER
SW1VIN 1 VIN2 SW2 GNDVOUTVTVIN3
0.04.05.05.55.05.55.05.5
FROM STEREO JACK
TO STEREO JACK
(MAIN PCB)
AV SCHEMATIC DIAGRAM
G-12G-11
FROM/TO CHROMA
TMX474
PCB010
GND
R+OUT
R-OUT
L+OUT
L-OUT
NC
NC
FRONT_VIDEO_IN
GND
A_IN_L
A_IN_R
GND
GND
NC
4.4
4.4 0
0
0
5.0
0
0
0
000
0
4.5
5.2
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
NC
H
E
H
E
H
E
J702_1
JPJ3653-01-234
F_A/V_IN(STEREO)
1
2
3
4
5
6
7
CD353
CH14061A
1
2
3
4
SPEAKER
SP355_1
MS-2D6SB02
8 OHM 2.5W
SPEAKER
SP354_1
MS-2D6SB02
8 OHM 2.5W
CD352 CH25088A
1
2
3
4
5
CD701 CH28110A
1
2
3
4
5
6
7
8
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
W860
W861
A_IN_R
GND
A_IN_L
GND
V_IN
GND
PCB280 TE9977
(STEREO JACK PCB)
STEREO JACK SCHEMATIC DIAGRAM
G-14
G-13
FROM AV
TO AV
NC
NC
NC
A_IN_R
GND
A_IN_R
A_IN_L
GND
V_IN
GND
L+
L-
R-
R+
R+ OUT
R- OUT
L+ OUT
L- OUT
V_IN
A_IN_L
MICON/TUNER
1
2
WAVEFORMS
0.5V 20µs/div
200mV 5ms/div
200mV 5ms/div
4
CHROMA
H-1
NOTE: The following waveforms were measured at the point of the corresponding
balloon number in the schematic diagram.
6
0.5V 20µs/div
200mV 20µs/div
7
8
20V 20µs/div
0.5V 5ms/div
10
11
1V 20µs/div
15
20V 20µs/div
12
1V 20µs/div
1V 20µs/div13
9
200mV 20µs/div
DEFLECTION/CRT
14
0.5V 5ms/div
3
200mV 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-2
200V 20µs/div
17
22 50V 20µs/div
25
200mV 1ms/div
SOUND AMP
WAVEFORMS
26 200mV 1ms/div
10V 5ms/div18
10V 5ms/div
19
0.5V 1ms/div
27
50V 20µs/div
20
1V 1ms/div28
21
50V 20µs/div
MECHANICAL EXPLODED VIEW
I-1
202
113
206
206
206
TU001
PCB010 (MAIN PCB)
FB101
202
203
203
203
203
107
107
107
107
116
L503
116
116
116
V801
108
PCB110 (CRT PCB)
J801
111
114
204
204
204
204
204
115
204
204
204
205
201
201
101
103
102
105
104
106
112
201
207
SP354
SP355
207
PCB280 (STEREO JACK PCB)
201
110
109
MECHANICAL REPLACEMENT PARTS LIST
REF. NO.PART NO. DESCRIPTION
101 A3G853J720CABINET,FRONT ASS'Y 102 701WPJB240CABINET,FRONT 103 711WPAA065PLATE,DISPLAY 104 713WPAA010GUIDE,REMOCON 105 735WPBA220BUTTON,CHANNEL 106 735WPAA279BUTTON,BASE 107 800WR0A003SHEET,CRT SUPPORT 108 741WUA0001SPRING,EARTH 109 7220001107 SHEET,HWC
110 7220001119 SHEET,CSA WARNING 111 723000A900 FILM,DECORATION 112 726000A014 SHEET,CRT SERVICEMAN 113 8995034000 CORD CLIP UL CO. 114 702WPAA129CABINET,BACK 115 722A08A081SHEET,RATING 116 769WSAA003WASHER 9.5x22xT2
201 8110630A04 SCREW,TAP TITE (P) BRAZIER 3x10 202 8110630802 SCREW,TAP TITE (P) BRAZIER 3x8 203 8111J50D04 SCREW,TAPPING (A) GW22 5x40 204 8117540A64 SCREW,TAPPING (B0) TRUSS 4x16 205 8117540A04 SCREW,TAPPING (B0) TRUSS 4x10 206 8109I30A04 SCREW,TAP TITE (B) WH7 3x10 207 8117330A04 SCREW,TAPPING (B0) FLAT 3x10
--- JB5K0100 POLY BAG
--- J3G85301 INSTRUCTION BOOK
--- 791WHA0025LAMIFILM BAG
--- 792WHA0199PACKAGE,TOP
--- 792WHA0200PACKAGE,BOTTOM
--- A3G853J975INSTRUCTION BOOK KIT
--- 793WCDA937GIFT BOX
J1-1
ELECTRICAL REPLACEMENT PARTS LIST
REF. NO.PART NO. DESCRIPTION REF. NO.PART NO. DESCRIPTION
RESISTORS DIODES
!R001 R3X18A333J R,METAL OXIDE 33K OHM 2W D508 D1VT001330DIODE,SILICON 1SS133T-77 !R401 R4X5T4104FR,METAL 100K OHM 1/4W !D509 D97U01801BDIODE,ZENER MTZJ18B T-77 !R404 R3X181102J R,METAL OXIDE 1K OHM 1W !D510 D2BTRU2AM0DIODE,SILICON RU2AM V1 !R405 R4X5T4223FR,METAL 22K OHM 1/4W D512 D1VT001330DIODE,SILICON 1SS133T-77 !R406 R801R7222J RC 2.2K OHM 1/10W !D513 D28XQS04N0DIODE,SCHOTTKY 11EQS04N-TA2B5 !R407 R002T22R2J RC 2.2 OHM 1/2W D514 D1VT001330DIODE,SILICON 1SS133T-77 !R408 R4X5T6123FR,METAL 12K OHM 1/6W D515 D28T21DQN9DIODE,SCHOTTKY 21DQ09N-TA2B1 !R409 R4X5T6562FR,METAL 5.6K OHM 1/6W D518 D1VT001330DIODE,SILICON 1SS133T-77 !R424 R4X5T6682FR,METAL 6.8K OHM 1/6W D519 D1VT001330DIODE,SILICON 1SS133T-77 !R426 R002T4102J RC 1K OHM 1/4W D528 D97U05R61BDIODE,ZENER MTZJ5.6B T-77 !R428 R5X2CD822JR,CEMENT 8.2K OHM 5W D601 D1VT001330DIODE,SILICON 1SS133T-77 !R429 R6558A3R3JR,FUSE 3.3 OHM 2W D602 D97U08R21BDIODE,ZENER MTZJ8.2B T-77 or !R500 R0G3K2275KRC 2.7M OHM 1/2W D92UA8R2B2DIODE,ZENER RD8.2ES AB2
R501 R5X2CE2R2JR,CEMENT 2.2 OHM 7W D605 D2WT011E10DIODE,SILICON 11E1-EIC !R504 R3X28B390J R,METAL OXIDE 39 OHM 3W D606 D97U01201BDIODE,ZENER MTZJ12B T-77 !R505 R3X181221J R,METAL OXIDE 220 OHM 1W D607 D1VT001330DIODE,SILICON 1SS133T-77
R509 R002T4182J RC 1.8K OHM 1/4W D608 D97U01201BDIODE,ZENER MTZJ12B T-77
R517 R3X28A2R7JR,METAL 2.7 OHM 2W D609 D97U01201BDIODE,ZENER MTZJ12B T-77 !R518 R801R7222J RC 2.2K OHM 1/10W D610 D97U06R81BDIODE,ZENER MTZJ6.8B T-77 !R519 R801R7331J RC 330 OHM 1/10W D701 D97U01201BDIODE,ZENER MTZJ12B T-77 !R542 R3X181R47JR,METAL 0.47 OHM 1W D702 D97U06R81BDIODE,ZENER MTZJ6.8B T-77
R629 R801R7101J RC 100 OHM 1/10W D703 D97U01201BDIODE,ZENER MTZJ12B T-77 !R803 R3X18A123J R,METAL OXIDE 12K OHM 2W or D705 D97U01201BDIODE,ZENER MTZJ12B T-77
R3K18A123J R,METAL 12K OHM 2W D706 D97U06R81BDIODE,ZENER MTZJ6.8B T-77
!R805 R3X18A123J R,METAL OXIDE 12K OHM 2W or D707 D97U06R81BDIODE,ZENER MTZJ6.8B T-77
R3K18A123J R,METAL 12K OHM 2W D708 D97U06R81BDIODE,ZENER MTZJ6.8B T-77
!R807 R3X18A123J R,METAL OXIDE 12K OHM 2W or D709 D97U06R81BDIODE,ZENER MTZJ6.8B T-77
R3K18A123J R,METAL 12K OHM 2W D711 D97U06R81BDIODE,ZENER MTZJ6.8B T-77
CAPACITORS ICS
!C401 C0JLYR713KCC 0.001 UF 2KV YR or IC101 I56F07044C IC OEC7044C
C01BBP713KCC 0.001 UF 2KV BP IC199 A3G851J015IC S-24C02BDP-1A !C403 E02LF4102MCE 1000 UF 35V !IC351 I03SP46000 IC LA4600 !C414 E02LT4101MCE 100 UF 35V !IC401 I03TD80400 IC LA78040 !C418 E02LF3102MCE 1000 UF 25V !IC506 0002500560 PHOTO COUPLER TLP621(D4-GR-LF2) !C434 E02LT8220MCE 22 UF 100V IC601 I06FC1203CIC M61203CFP
C437 P4J7F3334J CMPP 0.33 UF 250V PMS IC703 I0QS02234LIC NJM2234L !C443 P414F9822H CMPP 0.0082UF 1.6KV ECWH IC852 I01FF58290 IC AN5829S !C444 C0JLYR7H2KCC 220 PF 2KV YR IC853 I1KJ98L090 IC KIA78L09BP-AT !C446 E5EZTB010MCE 1 UF 160V or IC854 I06DF62420 IC M62420SP
E53ZTB010MCE 1 UF 160V VZ or
TRANSISTORS
E53ZTD010MCE 1 UF 250V VZ Q351 T8YJ2412K0TRANSISTOR,SILICON 2SC2412KT146(R,S) !C448 E5EZFC220MCE 22 UF 200V Q352 T8YJ2412K0TRANSISTOR,SILICON 2SC2412KT146(R,S) !C502 C0JTB0513KCC 0.001 UF 500V B !Q401 TDUU024990TRANSISTOR,SILICON 2SD2499(LB0EC1) !C503 C0JTB0513KCC 0.001 UF 500V B !Q402 TC3Q026210TRANSISTOR,SILICON 2SC2621(D,E)-RAC !C505 P2122B224MCMP 0.22 UF 250V ECQUL !Q501 T25FK26620TRANSISTOR,FIELD EFFECT2SK2662 !C507 CB3HE0MQ3MCC 0.0047UF 250V !Q502 TC5T021204TRANSISTOR,SILICON 2SC2120Y(TPE2) !C511 E50HU5010MCE 1 UF 50V Q507 TCYT1740S0TRANSISTOR,SILICON 2SC1740SP(R,S) TP
C514 C0JLYR7U2KCC 680 PF 2KV YR Q601 TD3T007340TRANSISTOR,SILICON 2SD734(E,F)-AA C515 E5EZT2102MCE 1000 UF 16V or Q603 TD3T007340TRANSISTOR,SILICON 2SD734(E,F)-AA
E53ZT2102MCE 1000 UF 16V VZ Q604 TD3T007340TRANSISTOR,SILICON 2SD734(E,F)-AA
C517 C0JLYR7Q2KCC 470 PF 2KV YR Q605 TD3T007340TRANSISTOR,SILICON 2SD734(E,F)-AA
!C519 E5EZT3102MCE 1000 UF 25V or Q606 TD3T007340TRANSISTOR,SILICON 2SD734(E,F)-AA
E02YT3102MCE 1000 UF 25V Q610 T8YJ2412K0TRANSISTOR,SILICON 2SC2412KT146(R,S) !C521 E62NFB101MCE 100 UF 160V Q701 TPYJD05001COMPOUND TRANSISTOR DTA144EKAT146 !C526 E52DGC471MCE 470 UF 200V Q702 TNYTB05001COMPOUND TRANSISTOR DTC114EKT147
C612 E0EL02102MCE 1000 UF 16V Q705 T8YA2412K0TRANSISTOR,SILICON 2SC2412KT147(R,S) C620 P1S3T0682J CP 0.0068UF 50V Q706 T6YJ1037K0TRANSISTOR,SILICON 2SA1037AKT146(R,S) C819 C0JBB0713KCC 0.001 UF 2KV B Q707 T8YA2412K0TRANSISTOR,SILICON 2SC2412KT147(R,S)
DIODES
!Q801 TC3F042170TRANSISTOR,SILICON 2SC4217(D,E)-RAC D001 D94TA30013 DIODE,ZENER HZ30-3L TD !Q802 TC3F042170TRANSISTOR,SILICON 2SC4217(D,E)-RAC D400 D2WTAU02A0DIODE,SILICON AU02A-EIC !Q803 TC3F042170TRANSISTOR,SILICON 2SC4217(D,E)-RAC
!D401 D94TA27011 DIODE,ZENER HZ27-1L TD Q851 T6YJ1037K0TRANSISTOR,SILICON 2SA1037AKT146(R,S) !D402 D94TA11B11DIODE,ZENER HZ11B1L TD Q852 T6YJ1037K0TRANSISTOR,SILICON 2SA1037AKT146(R,S)
D403 D2WT011E10DIODE,SILICON 11E1-EIC
COILS &TRANSFORMERS
D404 D97U06R21BDIODE,ZENER MTZJ6.2B T-77 or L101 021LA63R3KCOIL 3.3 UH
D92UA6R2B2DIODE,ZENER RD6.2ES AB2 L401 022R000002COIL,LINEARITY ELH-5L50N1431
!D405 D2WTAU02A0DIODE,SILICON AU02A-EIC L410 021679472KCOIL 4.7 MH
D406 D2WTAU02A0DIODE,SILICON AU02A-EIC !L501 029T00A7M1COIL,LINE FILTER 1R5A102F20
!D410 D2WTAU02A0DIODE,SILICON AU02A-EIC !L503 028R200026COIL,DEGAUSS 8R200026 !D411 D2WTAU02A0DIODE,SILICON AU02A-EIC L601 021LA61R2MCOIL 1.2 UH !D501 D2WTRM11C0DIODE,SILICON RM11C-EIC L603 02167D101KCOIL 100 UH !D502 D2WTRM11C0DIODE,SILICON RM11C-EIC L605 021LA61R0MCOIL 1 UH !D503 D2WTRM11C0DIODE,SILICON RM11C-EIC L606 021LA61R0MCOIL 1 UH !D504 D2WTRM11C0DIODE,SILICON RM11C-EIC L607 021LA6150KCOIL 15 UH !D505 D28T21DQN9DIODE,SCHOTTKY 21DQ09N-TA2B1 L608 021LA66R8KCOIL 6.8 UH
D506 D97U01501BDIODE,ZENER MTZJ15B T-77 L801 02167D221KCOIL 220 UH D507 D97U01501BDIODE,ZENER MTZJ15B T-77 L851 02167D220KCOIL 22 UH
J2-1
ELECTRICAL REPLACEMENT PARTS LIST
REF. NO.PART NO. DESCRIPTION
COILS &TRANSFORMERS
T401 03305Y0018 TRANS,HORIZONTAL DRIVE 305Y001
!T502 0481290604 TRANSFORMER,SWITCHING 8129060
JACKS
J702 0602431015 RCA,JACK JPJ3653-01-234 J703 060Q431018 RCA,JACK AV3-19DS-1 J704 060Q431018 RCA,JACK AV3-19DS-1
!J801 066X120014 SOCKET,CRT HPS3200-010501
SWITCHES
SW103 0504201T31 SWITCH,TACT SKHVBED010 SW104 0504201T31 SWITCH,TACT SKHVBED010 SW105 0504201T31 SWITCH,TACT SKHVBED010 SW106 0504201T31 SWITCH,TACT SKHVBED010 SW107 0504201T31 SWITCH,TACT SKHVBED010
VARIABLE RESISTORS
VR501 V1163Q2BTCVOLUME,SEMI FIXED EVNCYAA03BQ2 or
V1163Q2BT6VOLUME,SEMI FIXED EVNDXAA03BQ2
P.C.BOARD ASSEMBLIES
PCB010 A3G853J01APCB ASS'Y TMX474A PCB110 A3G853J11APCB ASS'Y TCX335A PCB280 A3G853J28APCB ASS'Y TE9977A
MISCELLANEOUS
CD352 06CH25088ACORD,CONNECTOR CH25088A CD353 06CH14061ACORD,CONNECTOR CH14061A
!CD501 120R614914 CORD,AC 120R614914
CD701 06CH28110ACORD,CONNECTOR CH28110A CD801 068M82025ACORD,CONNECTOR 8M82025A CF601 1022T45R72 FILTER,SAW SAF45MFY220ZR CF603 1012T4R509 FILTER,CERAMIC SFSH4.5MCB-TF21 CF604 1012T4R503 FILTER,CERAMIC TRAP TPS4.5MB-TF21
!CP401 069X450029 CONNECTOR PCB SIDE B05B-DVS !CP501 0697320039 CORD,UX CONNECTOR THL-P03P-B1 !CP502 069W420029CONNECTOR PCB SIDE TV-50P-02-A1
CP601 0694260139 CONNECTOR PCB SIDE 173979-6 CP801 069D320018 CONNECTOR PCB SIDE TS-80P-02-V1 CP806 069D010010 CONNECTOR PCB SIDE 005P-2100 CP701B 069E280129 CONNECTOR PCB SIDE 8283_0812_00_000 CP703B 069E250129 CONNECTOR PCB SIDE 8283_0512_00_000 CP802A 067R010019 WIRE HOLDER 51048-1010 CP802B 067R010019 WIRE HOLDER 51048-1010 EL001 124120301A EYE LET XRY20X30BD
!F501 081PA05003 FUSE 233005-MB000 !FB401 043221016A TRANSFORMER,FLYBACK 3221016
FH501 06710T0006 HOLDER,FUSE EYF-52BC FH502 06710T0006 HOLDER,FUSE EYF-52BC OS101 077Q014003 REMOTE RECEIVER PIC-28143SY-2
!SP354 070W463002SPEAKER MS-2D6SB02 !SP355 070W463002SPEAKER MS-2D6SB02 !TH501 DF40A3R0Q0DEGAUSS,ELEMENT PTAD14K2-3R0Q141
TM101 076N0DW040TRANSMITTER RC-DW040
!TU001 0145S00052 TUNER,VHF-UHF ENV56D66G3 !V801 098Y210412 CRT W/DY A51LMU50X50N45
X101 1002T00802 CERAMIC OSCILLATOR CSTS0800MG03-T2 X602 100CT3R505CRYSTAL HC-49/C 3.579545MHz
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
M3G8-53JSPEC.NO.
O/R NO.
W143007
6. AVOID AN X-RAY1. KEEP THE NOTICES
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.
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.
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.
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.
IMPORTANT
HOW TO ORDER PARTS
SERVICING NOTICES ON CHECKING
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.
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.
PUT PARTS AND WIRES IN THE ORIGINAL POSITION AFTER ASSEMBLING OR WIRING
4.
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.
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)
1.
2.
3.
4.
Unplug the plug from the AC outlet. Remove the antenna terminal on TV and turn on the TV. 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]. 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
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 ............................................................................................
A2-1
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
GENERAL SPECIFICATIONS
A3-1
G-1.Outline of the Product
20 inch(508.0
mmV):Measured diagonally
Color CRT 90 degree deflection
G-2.Broadcasting System
US System M G-3.Color System NTSC PAL SECAM or Monochrome signal G-4.NTSC Playback(PAL 60Hz)
Yes No
G-5.NTSC 3.58+4.43/PAL60Hz
Yes No
G-6.Antenna Input Impedan ce
VHF/UHF 75 ohm unbalanced G-7.Tuner and Receiving Contactless Electric tuner
1Tuner System 2Tuner System
channel Tuner
Oscar(W/ O HYPER) Oscar(W/ HYPER) France CATV) Others
Receiving channel
VHF (LOW) 2 ch ~ 6 ch
(HIGH) 7 ch ~ 13 ch (CATV) A5 ch ~ I ch J ch~W+29 ch GGG ch~W+84 ch
UHF 14 ch ~ 69 ch
Tuning System
Frequency syn. Voltage syn. Others
G-8.Preset Channel
-- channels
G-9.Intermediate Frequency
Picture(fP) 45.75 MHz
MHz MHz Sound (fS) 41.25 MHz MHz MHz fP-fS 4.50 MHz MHz MHz
G-10.Stereo/Dual TV Sound
Yes( NICAM GERMAN USA JAPAN) No
G-11.Tuner Sound Muting
Yes No
G-12.Power Source 120 V
AC 50Hz AC 60Hz
G-13.Power Consumption: 95 W at AC 120 V 60 Hz
-- W at DC --- V Stand by: 8 W at AC V Hz Per Year: -- kWh / Year
G-14.Dimensions(Approx.)
600 mm(W) 479
mm(D) 446 mm(H)
G-15.Weight(Approx.) Net : 21.0 kg ( 46.3 lbs)
Gross: 23.8 kg ( 52.5 lbs)
G-16.Cabinet Material
Cabinet Front:
PS 94HB DECABROM ABS 94V2 NON-DECA
94V0
Back Panel:
PS 94HB DECABROM ABS 94V2 NON-DECA
94V0
GENERAL SPECIFICATIONS
A3-2
G-17.Protector: Power Fuse G-18.Regulation
Safety
UL CSA SAA SI CE SEV BS NF NEMKO FEMKO DEMKO IEC65 SEMKO NZ HOMOLO SABS CNS SISIR NOM AS3159 DENTORI UNE GOST NONE
Radiation
FCC DOC FTZ PTT CE SEV SABA SI NF NZ HOMOLO UNE CNS CISPR13 DENTORI AS/NZS NONE
X-Radiation
PTB DHHS HWC DENTORI NONE
G-19.Temperature
Operation 5 ºC~ 40
ºC
Storage -20 ºC~ 60 ºC G-20.Operating Humidity Less than 80 %RH G-21.Clock and Timer
Sleep Timer
Yes Max 120 Min.( 10 Min. Step) No On/Off Timer Yes Programs No Wake Up Timer Yes Programs No
G-22.Timer back up Time More than -- Minutes (at Power Off Mode) G-23.Terminals
VHF/UHF Antenna Din Type F-Type France Type Video Input(Fro nt) Phono Jack (RCA ø8.3) BNC Video Input(Rear) Phono Jack (RCA ø8.3) BNC Video Output(Rear) Phono Jack (RCA ø8.3) BNC Audio Input(Front) Phono Jack (RCA ø8.3)x2 Audio Input(Rear) Phono Jack (RCA ø8.3)x2 Audio Output(Rea r) Phono Jack (RCA ø8.3)x2 21 Pin DC Jack(Center +) Ear Phone Jack(ø3.5) Head Phone Jack(ø3.5) AC Outlet Ext Speaker Diversity S Input(Front ) S Input(Rear)
G-24.Indicator
Power Stand By On Timer NONE
( ) ( ) ( )
G-25.Display
On Screen Display
Menu Clock Set( 12H 24H) System Selec On/Off Tim er
Hotel L ock Area Code CH Tuning Sound 1/ 2 NICAM Auto Off Picture Guide C H Set Audio Language CATV Pin Code Registration Sap On/O ff V-Chip
Contro l Level Sound Brightness Contrast
Color Tint(NTSC Only) Sharpness Tuning Bass Treble
Balance Back Light Stereo,Audio Output,Bilingual Picture Menu Stereo,Audio Output,SAP Mid Night Theate r Stereo,Audio Output GAME AV Channel Clock Hotel Lock Sleep Timer Sound Mute Pin Code
GENERAL SPECIFICATIONS
A3-3
G-26.OSD Language
Eng Ger Fre Spa Ita Por Jpn
OSD Lang uage Setting
Eng Ger Fre Spa Ita Po r Jpn Not Applicable
G-27.Speaker
Positio n
Front Side Bottom Size 6 1/3 x 2 1/4 inches Imp. 32 ohm x 2 pcs Powe r Max 2.5 + 2.5 W
10% 2.0 + 2.0 W (Typical) G-28.EXT Speake r : Yes -- W Imp -- ohm G-29.Carton
Master Carton:
Need No Need Content: ---- Set Material: ---- / ---- Corrugated Carton Dimensions: ---- mm(W) ---- mm(D) ---- mm(H) Description of Or igin Ye s No
Gift Box
Material
AB Double/ Br ow n Cor ru gated Carton ( with Photo La bel) AB Double/ Wh it e Cor ru ga t e d Ca rton ( with P hoto Label) AB Double Full Color Carton W/Photo
Dimensions: 660 mm(W) 540
mm(D) 541 mm(H) Design: As Per BUYER 's Description of Or igin: Yes No
Drop Test Natural Dropping At 1 Corner / 3 Edges / 6 Surfaces
Height
25cm 31cm 46cm 62cm 80cm
Container Stuffing: 304 Sets / 40' container
G-30.Accessories
Owner's Manual ( W/Guarantee Card) [English/French] AC Plug Ad apter Chann el Film Battery (UM- x ) 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 Informat ion 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 Ante nn a One Pole Two Pole ( F-Type Din Type Fran ce Type) Loop Antenna ( F-Type Din Type France Type)
G-31.Other Features
Auto Degauss Auto Search Full OSD Auto Shut Off CH Allocation Premiere Canal+ SAP Comb Filter CATV(181CH) Channel Lock Auto C H Memory Anti-Theft Just Clock Function Hotel Lock Rental Game Position Fastext Unitext TopText Closed Caption Picture Menu Mid Night Theater V-Chip
GENERAL SPECIFICATIONS
A3-4
G-32.Switch
Front
Power(Tact) Channel Up/Reset Volume Up/S et Up System Select Channel Down/Enter Volume Down/Set Down Main Power SW Sub Power Menu:Vol UP+Vol Do wn
Rear
AC/DC TV/CATV Selector Degauss Main Power SW
G-33.Magnetic Fiel d
BV : +0.45G BV : +0. 35 G BV : +0.25G
BH : 0.18G BH : 0.30G BH : 0.30G
BV : -0.15G BV : -0.25G BV : -0.50G
BH : 0.15G BH : 0.15G BH : 0.30G
G-34.Remote Control Unit: RC-DW
Glow in Dark Remoc on Yes No Power Source: D.C 3 V Battery UM - 4 x 2 Total 28 Key
Power Quick View TV/AV Stand By Status Bar Select 0 Time Select PAL/SECAM 1 Time Set Volum e Up 2 Muting Volume Down 3 CH Skip CH Call 4 CH1/CH2 CH Down 5 Channel CH Up 6 Text/Mix/TV CH Down/Page Do wn 7 Display Cancel CH Up/Pag e Up 8 Initial Page +/­ 9 Store Program 10 Reveal F/T/B 11 Sleep Hold 12 Aft/Skip List 1 * Preset Rotate 2 * 5.5/6.5MHz Browse 0/10 Auto Memory Std/Auto Tone 1/2 Auto Memory Info Call Band Select Mono/Auto Reset Search TV/Caption/Text Menu Clock/Program Expand Enter Clock/Set Red Add Ch Set Cyan Delete Set + Normal Yellow Set ­Color Syst em Random Green Wide Selecy Tu ning Up/ Time Text Nicam/Mono Auto Wide On/Of f Tuning Down/Reset Tone A/B Picture Position Navi FM Transmi tter Direct Change/Auto Search Ba ck Lig ht Picture Menu Mi d N ight Th eate r Audio Select
1. REMOVAL OF ANODE CAP
Read the following NOTED items before starting work.
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.
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.)
2.
GND on the CRT
Screwdriver
Alligator Clip
Support
CRT
GND on the CRT
Rubber Cap
CRT
Support
Fig. 1-2
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.)
Location of Anode Cap
NOTE
Confirm that there is no dirt, dust, etc. at the spot where the cap was located.
2.3.Arrange the wire of the Anode Cap and make sure the wire is not twisted. Turn over the Rubber Cap. (Refer to Fig. 1-4.)
4. Insert one end of the Anode Support into the anode button, then the other as shown in Fig. 1-5.
5.6.Confirm that the Support is securely connected. Put on the Rubber Cap without moving any parts.
CRT
Support
DISASSEMBLY INSTRUCTIONS
Fig. 1-3
Fig. 1-4
Fig. 1-5
*
*
Fig. 1-1
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 Remocon Key Operations
VOL. (-) MIN
0
Releasing of V-CHIP PASSWORD.
VOL. (-) MIN 1
VOL. (-) MIN 6
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".
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.
VOL. (-) MIN
Display of the Adjustment MENU on the screen. Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).
9
C-1
CONFIRMATION OF USING HOURS
POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation.
1.
2.
3.
Set the VOLUME to minimum. Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second. After the confirmation of using hours, turn off the power.
INIT 00 83
0010
CRT ON
ADDRESS DATA
FIG. 1
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)
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.
Table 1
1.
2.
3.
4.
5.
6.
7.
8. The unit will now have the correct DATA for the new MEMORY IC.
Enter DATA SET mode by setting VOLUME to minimum. 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. 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. Press ENTER to select DATA. When DATA is selected, it will "blink". Again, step through the DATA using SET + or - until required DATA value has been selected. Pressing ENTER will take you back to ADDRESS for further selection if necessary. Repeat steps 3 to 6 until all data has been checked. When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
+9
+3 +4 +5
+6 +7
+8 +A
06 63
24 3B A3 00 FF09
+2
INI +0 +1
70 A9 FA A2
ELECTRICAL ADJUSTMENTS
1.
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.
1. Synchro Scope
2. Digital Voltmeter
On-Screen Display Adjustment
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.
1.
Fig. 1-1
Use the Channel UP/DOWN button or Channel button (0-9) on the remote control to select the options shown in Fig. 1-2. Press the MENU button on the remote control to end the adjustments.
2.
3.
Prepare the following measurement tools for electrical adjustments.
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.
00 01 02 03 04 05 06 07 08 09 10 11 12
Fig. 1-2
FUNCTION
BRIGHTNESS CONTRAST COLOR TINT SHARPNESS FM LEVEL LEVEL SEPARATION 1 SEPARATION 2 TEST MONO TEST STEREO X-RAY TEST
NO.
13 14 15 16 17 18 19 20 21 22 23 24
2. BASIC ADJUSTMENTS
2-1: RF AGC DELAY
D1-1
TV
00 OSD 15
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". Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 3.1V.
1.
2.
3.
4.
5.
BEFORE MAKING ELECTRICAL ADJUSTMENTS
2-2: CUT OFF
1.
2.
3.
4.
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. Place the set with Aging Test for more than 15 minutes. Activate the adjustment mode display of Fig. 1-1 and press the channel button (01) on the remote control to select "CUT OFF". Adjust the Screen Volume until a dim raster is obtained.
2-3: FOCUS
1.
2.
3.
Receive the monoscope pattern. Turn the Focus Volume fully counterclockwise once. Adjust the Focus Volume until picture is distinct.
1.
2.
3.
4.
5.
6.
7.
8.
2-4: WHITE BALANCE NOTE: Adjust after performing CUT OFF adjustment.
Place the set with Aging Test for more than 15 minutes. Receive the white 100% signal from the Pattern Generator. Using the adjustment control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (10) on the remote control to select "R.BIAS". Using the VOL. UP/DOWN button on the remote control, adjust the R.BIAS. Press the CH. UP/DOWN button on the remote control to select the "R.DRIVE", "B.DRIVE", "G.BIAS" or "B.BIAS". Using the VOL. UP/DOWN button on the remote control, adjust the R.DRIVE, B.DRIVE, G.BIAS or B.BIAS. Perform the above adjustments 6 and 7 until the white color is looked like a white.
2-5: SUB TINT/SUB COLOR
1.
2.
3.
4.
5.
6.
7.
8.
9.
Receive the color bar pattern. (RF Input) Connect the oscilloscope to TP023. Activate the adjustment mode display of Fig. 1-1 and press the channel button (16) on the remote control to select "TINT". Press the VOL. UP/DOWN button on the remote control until the waveform becomes as shown in Fig. 2-1. Connect the oscilloscope to TP022. Press the CH DOWN button once to set to "COLOR" mode. 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) Receive the color bar pattern. (Audio Video Input) Press the TV/AV button on the remote control to set to the AV mode. Then perform the above adjustments 2~7.
ELECTRICAL ADJUSTMENTS
D1-2
Fig. 2-1
110%
0%
100%
Fig. 2-2
2-9: OSD HORIZONTAL
1.2.Activate the adjustment mode display of Fig. 1-1. Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum.
(Refer to Fig. 2-3)
B
A
TV
00 OSD 15
Fig. 2-3
2-10: VIF VCO
1.
2.
3.
4.
Place the set with Aging Test for more than 15 minutes. Connect the digital voltmeter to pin 5 of CP601. Activate the adjustment mode display of Fig. 1-1 and press the channel button (03) on the remote control to select "VIF VCO". Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.5V.
2-6: HORIZONTAL PHASE
1.
2.
3.
4.
Receive the center cross signal from the Pattern Generator. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (05) on the remote control to select "H PHASE". 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.
2.
3.
4.
5.
Receive the crosshatch signal from the Pattern Generator. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (06) on the remote control to select "V SIZE". Press the VOL. UP/DOWN button on the remote control until the rectangle on the center of the screen becomes square. Receive a broadcast and check if the picture is normal.
2-8: VERTICAL SHIFT
1.
2.
3.
4.
Receive the crosshatch signal from the Pattern Generator. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (07) on the remote control to select "V SHIFT". Press the VOL. UP/DOWN button on the remote control until the horizontal line becomes fit to the notch of the shabow mask.
NOTE: Adjust after performing adjustments in section 2-7
Using the remote control, set the brightness and contrast to normal position. Connect the digital voltmeter to TP401. Set condition is AV MODE without signal. Adjust the VR501 until the digital voltemeter is 130 ± 1V.
1.
2.
3.
4.
2-11: CONSTANT VOLTAGE
2-12: SEPARATION 1, 2
1.
2.
3.
4.
5.
6.
Receive the stereo broadcasting signal. Connect the AC voltmeter to AUDIO OUT JACK through stereo filter (L=400Hz, R=2KHz). Activate the adjustment mode display of Fig. 1-1 and press the channel button (20) on the remote control to select "SEPARATION 1". Press the VOL. UP/DOWN button on the remote control until the output of L-CH and R-CH become minimum. Press the CH UP button once to set to "SEPARATION 2" mode. Press the VOL. UP/DOWN button on the remote control until the output of L-CH and R-CH become minimum.
ELECTRICAL ADJUSTMENTS
3.
1.
2.
3.
1.
2.
3.
4.
5.
6.
7.
8.
3-2: PURITY NOTE
Adjust after performing adjustments in section 3-1.
1.
2.
3.
4.
5.
Receive the green raster pattern from color bar generator. 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. Move the deflection yoke backward (to neck side) slowly, and stop it at the position when the whole screen is green. Confirm red and blue colors. Adjust the slant of the deflection yoke while watching the screen, then tighten the fixing screw.
DEFLECTION YOKE DEFLECTION YOKE SCREW MAGNET SCREW
PURITY MAGNETS 6 POLE MAGNETS
4 POLE MAGNETS
Fig. 3-1
PURITY AND CONVERGENCE ADJUSTMENTS
NOTE
3-1: STATIC CONVERGENCE (ROUGH ADJUSTMENT)
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. Receive the green raster pattern from the color bar generator. Slide the deflection yoke until it touches the funnel side of the CRT. Adjust center of screen to green, with red and blue on the sides, using the pair of purity magnets. Switch the color bar generator from the green raster pattern to the crosshatch pattern. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets. Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets. Adjust the crosshatch pattern to change to white by repeating steps 6 and 7.
Turn the unit on and let it warm up for at least 30 minutes before performing the following adjustments. Place the CRT surface facing east or west to reduce the terrestrial magnetism. Turn ON the unit and demagnetize with a Degauss Coil.
3-3: STATIC CONVERGENCE
D2-1
1.
2.
3.
3-4: DYNAMIC CONVERGENCE
Adjust after performing adjustments in section 3-3.
1.2.Adjust the differences around the screen by moving the deflection yoke upward/downward and right/left.
(Refer to Fig. 3-2-a)
Insert three wedges between the deflection yoke and CRT funnel to fix the deflection yoke.
(Refer to Fig. 3-2-b)
R G B
R G B
Fig. 3-2-a
WEDGE
WEDGE
WEDGE
WEDGE POSITION
Fig. 3-2-b
R G B
R G B
Receive the crosshatch pattern from the color bar generator. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets. Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets.
UPWARD/DOWNWARD SLANT RIGHT/LEFT SLANT
Adjust after performing adjustments in section 3-2.
NOTE
NOTE
MAJOR COMPONENTS LOCATION GUIDE
FOCUS VOLUME SCREEN VOLUME
FB401
D3-1
TU001
CRT PCB
MAIN PCB
J801
TP023
TP022
TP001
VR501
CP601
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