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TV-20F243
TV-20F243
BLOCK DIAGRAMS TV BLOCK DIAGRAM
MICON/ OPERATION/ IN/OUT V. OUTPUT IC401 LA78040 SCL SDA Q602, Q603 UNGER+8V REG Q608 HI-FI Y/C/AUDIO/CCD/ HEAD AMP/ TU1_AUDIO_A AT+13V TU1_VIDEO CHROMA IC601 M61206FP 57 55 SAW FILTER CF601 1 4 5 62 41 33 39 13 50 10 5 27 64 14 15 Y/C/AUDIO/ MONITOR_V CCD/HEAD AMP Q901 BUFFER DIGITAL COMB FILTER IC901 TC90A45F 4 13 Q903 BUFFER Q902 BUFFER X602 3.579545MHz Q403, Q404 SW. X_RAY_TEST VD HI-FI AUDIO_OUT_R AUDIO_OUT_L IC602 KIA78R09API P.CON + 9V L503 DEGAUSS COIL TH501 DEGAUSS ELEMENT 3 2 6 F50 1 D501 RECTIFIER POWER CONTROL IC501 TEA1507P/N1 Q501 POWER 5 13 11 15 Q503 SWITCHING AT + 30V Q505 SWITCHING POWER FAIL VCR_POWER-H TV_POWER-H TV_A_MUTE MICON/ OPERATION/ IN/OUT UNREG + 8V 5 9 T501 8 Q507 FEED BACK SW. VR502 +B ADJ FEED BACK IC506 LTV-817M-VB 9 8 1 12 10 SP351 SPEAKER 4 SP352 SPEAKER 9V REG IC603 KIA78R05PI 5V REG P.CON + 5V Q502 PROTECT DRIVE 2 7 19 14
SOUND AMP IC352 AN7522
THERMAL PROTECTION AT+5V AM P PUMP UP 5 7 Q405 H-DRIVE Q406 H. OUTPUT DY Q651 SW. MICON/ H-CONTROL OPERATION/ IN/OUT
REG Q605, Q606 REG
P.CON+8V 1 P.CON+5V
VCC 2 3
TU601 1 4 5 11
FB401 3 E27 COL 1 2 +B HV J801 7 ABL 9 AFC F S F 7 11 8 6 Q803, Q812 BLUE AMP P. CON + 8V Q801, Q810 RED AMP Q802, Q811 GREEN AMP 10 V801 CRT
1
16 17
10 HEATER
60
29 30
31 15 36 34 32 12 6 7
28 20
DIGITAL SOUND CONTROL IC301 M62420SP 9 10
HD OSD_BLK OSD_B OSD_R OSD_G AFT_M MICON/ OPERATION/ IN/OUT
2
2 6 7 5 4 3 1 HEADPHONE JACK J351
AC IN
No.51987
2-3
2-4
No.51987
TV-20F243
TV-20F243
Y/C/AUDIO/CCD/HEAD AMP BLOCK DIAGRAM
X4001 3.579545MHz
HF2
HI-FI
HF COM HF1 Y/C/A/CCD/H.AMP IC IC4001 LA71205M-MPB
Q4012
BUFFER
Q4010
BUFFER
FSC
HI-FI MICON/ OPERATION/ IN/OUT
50
49
41
43
38
VSS
34
37
FRONT_VIDEO_IN
41
CP4001 9 HF1(R) 8 HF COM 7 HF2(L) 6 SP-CH1 (R) CYL 5 SP_COM 66 HA GND R 67 P
VX01 L H
PLL REC APC 3.58M BPF2
R Main CONV P
REC APC
CLAMP
4 SP-CH2 (L) 3 EP/LP-CH2 (R) 2 EP/LP_COM 1 EP/LP-CH2 (L)
73 R P 65 72 P P H L C-LPF
CLAMP CCD
B-UP AMP AGC
AUTO-BIAS SERAIL DECODER
58 53 54 55
VCR_A_MUTE Y/C_CLK Y/C_DATA Y/C_CS
MICON/ OPERATION/ IN/OUT
74
OUT VCA 36
ACC DET
9 7 CP4003 FE HEAD 1 FE HEAD (HOT) 2 FE HEAD (GND) 8 AUTO BIAS 6
EQ AMP
3.58M BPF1
REC AMP
VREF
VIDEO AGC
SYNC SEP QV-QH
YNR/COMB
1 2 3
39 C-ROT RF-SW IN 57 AUDIO 58 MUTE HA SW ENV DET 59 60B
H. SW VCR_A_MUTE ENV. DET V.REC_ST-H
LINE AMP PB.EE MUTE
LPF
R P
ALC
1 2 3 SYNC SEP 24 26 25 Q4007 SYNC IN
MICON/ OPERATION/ IN/OUT
Q4009
BUFFER
DUMMY_V. SYNC
SD_VIDEO
SD_SYNC
11 CP4002 6 AUDIO PB 5
HEAD AUDIO CONTROL COIL, BIAS OSC T4001
3
4
5
2
10
80 76
32 30
28
Q4005 BIAS CTL
MONITOR_V
AUDIO REC CTL+ CTLAE HEAD(-) AE HEAD(+)
5 6
2 3
TU1_VIDEO
TV
4 3 2 1
Q4006 BIAS OSC P. CON + 5V
NORMAL_A
L4007 HI-FI
4
1
2
Q4001, Q4002
3
Y/C_AUDIO
Q4003 SW CTL+ CTLMICON/ OPERATION/ IN/OUT
AUDIO PB SW
No.51987
2-5
2-6
No.51987
TV-20F243
TV-20F243
MICON/OPERATION/IN/OUT BLOCK DIAGRAM
SW1001
TIMER SYSCON MICON IC IC1001 OEC7071A
50 TAB SW RESET-L 34 1 OUT
SYSTEM RESET IC IC1003 R3111N311A/C-TR
SDA
HI-FI
SCL
AT+5.6V P. CON+5V 1 2 1 2 4 3 4 3 MS_SEN B Q1003 MS_SEN A Q1009 2 MSSEN-B 1 MSSEN-A
POWER_FAIL_L X-OUT(12MHz) X-IN(12MHz) XC-OUT(32KHz) XC-IN(32MHz)
85 39 38 36 35
X1001 12MHz X1002 32.768KHz
Q1008 BUFFER
J701 2 4 6 FRONT_VIDEO_IN FRONT_AUDIO_IN_L
Y/C/AUDIO/ CCD/HEAD AMP HI-FI
FRONT_AUDIO_IN_R
CTL+ 1 2 3 4 REEL SENS. Q1005 80 REEL-T CTL-
95 94 66 56 18 68 70 69 6 81 72 71 97 73 64 63 62 7 60 59 58 82 9 28 POWER ON/OFF REC/OTR STOP/EJECT PLAY FF/CUE Q1004 FF/REW_SW 5 SDA 6 SCL EEP ROM IC IC1099 S-24C04BDP-LA
CTL+ CTLV. REC_ST_H SD_VIDEO SD_SYNC H. SW Y/C_DATA Y/C_CLK Y/C_CS ENV_DET VCR_A_MUTE
V-REC-START-H
CVIN
H_CONTROL
TV X-RAY_TEST VCR_POWER_H
24
41 27 12 76 87 11
H_CONTROL
X-RAY_TEST VCR-POWER VIDEO-H. SW SDATA SCLK
Y/C/AUDIO/ CCD/HEAD AMP
CAPSTAN 9 DD UNIT 10 11 12
CP1001 1 CAP_FG 4 CAP/M F/R 5 I LIMIT CAP_CTL LDM_CTL CTL_FG/PG CYL_CTL
CAP-LIMIT
CAP-PWM CAP-FG CAP-FWD
CS VIDEO ENV
VCR_A_MUTE IIC-DATA1 IIC-CLK1 CTL AMP-OUT FF/REW-L R
20 LDM CTL 90 DRUM FG/PG 77 DRUM-PWM
POWER _FAIL SDA SCL OSD_R OSD_G OSD_B AFT_M OSD_BLK VD HD TV_A_MUTE TV_POWER_H TV
HI-FI-ENV HI-FI-H.SW HI-FI VCR_A_MUTE ST_SELECT Y/C/AUDIO/CCD/ HEAD AMP
5 19 81
HI-FI-ENV HI-FI-H.SW VCR_A_MUTE
G B AFT(MONI) OSD OUT1
100 DEW/ST_SELECT
13
DUMMY_V. SYNC
DUMMY-V.SYNC
V-SYNC H/C-SYNC
Q1013 AT+5.6V EOT SENSOR Q1006 LED DRIVER 61 CENTER LED 3 EOT
TV_A_MUTE
KEY 1
TV-POWER
REW/REV
KEY 2 Q1011 BOT SENSOR
D1003 ON-TIMER LED REMOCON-IN REC LED
10 31 14 Q4205 30 REC LED SW REC/OTR AT+5V T-REC Q4201 ON TIMER LED SW
OS753
1 2 3 CH DOWN CH UP VOL. UP VOL. DOWN
4
BOT
D793 Q4206
T-REC LED 29
T-REC LED SW
D791
CS KANTAN/ON TIMER D794
No.51987
2-7
2-8
No.51987
TV-20F243
TV-20F243
HI-FI BLOCK DIAGRAM
HI-FI AUDIO/HEAD AMP/DEM IC IC5501 AN3662FBP AGC INPUT SW HF1 24 AMP 2 10 4 NC 15 FRONT_AUDIO_IN_L NC FRONT_AUDIO_IN_R MICON/ OPERATION/ IN/OUT
HF2
22
AMP
Y/C/AUDIO/CCD/ HEAD AMP
AMP
53 57
AUDIO_OUT_R AUDIO_OUT_L TV
HF_COM
21
OUTPUT SW
AMP
PNR
FSC Y/C_AUDIO NORMAL_A
45 62 61 VCO-FO ADJ LOGIC 25 BPF 48 TU1_AUDIO_A
FM LIM
30 29
V. REC_ST_H
DEM BLOCK
P.CON+5V
P.CON+9V
40
51 58
28
27 36
HIFI_ENV. HIFI_H.SW VCR_A_MUTE
42 LOGIC
43 56
SCL SDA ST_SELECT
MICON/ OPERATION/ IN/OUT
No.51987
2-9
2-10
No.51987
TV-20F243
TV-20F243
WIRNING CONNECTION DIAGRAM
A B C D E F G H
SPEAKER
INTERCONNECTION DIAGRAM
SP351 8OHM COMMAND TRANSMITTER TM101
8
GND GND GND
8
SP352 8OHM MONITOR V.OUT 6 COMB PCB VEA975 PCB300 CY901 5 4 3 GND 2 FSC 1 P.CON+5V
2 FRONT AV JACK J701_1
1
E
1 2 FRONT_VIDEO_IN
E
3 4 FRONT_AUDIO_IN_L
E
5 6 FRONT_A_IN_R 7 FRONT_AUDIO_IN_L CD355
SP OUT R+
SP OUT R-
SPEAKER
Y_IN
TO OS753
2
H
H
H
NC
FROM TM101
SP OUT L+
SP OUT L-
1
C_IN
CD757_1 1 2 3 4 5 6 7 8 9 10
REMOCON_OUT 1 GND AT+5V 2 3 4 5 KEY_A T-REC_LED REC_LED KEY_B 6 8 9 7
CP2201_2
HALL SENSOR
MAIN COIL
ROTOR MAGNET
MR FG SENSOR VCC
6 MONITOR V.OUT
Y_IN
C_IN
3 GND
HEADPHONE JACK J351 1 5 4 3 2 6 7
CP604
4 5 6 7 8 9 10 11 12 13
SOUND_GND SOUND_OUT_L SP_OUT_L GND FRONT_A_IN_R SP_OUT_R EARPHONE_L EARPHONE_R
4 5 6 7 8
2 B+
3 FRONT_AUDIO_IN_L 3
1 Vout
FSC
2
GND
2
P.CON+5V
1
FRONT_VIDEO_IN 1
OS753
7
CP704
CD704
CD356
O
G
7
GND
ON_TIMER_LED 10
OUT HALL HALL SWITCH VCC IN LOGIC CP1001 1 CAP_FG CAP_VCO VCC CAP/M/F/R I LIMIT MOTOR_GND GND CYL/LAD VCO CAP_CTL LDM_CTL CYL_FG/PG CYL_CTL 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 CAPSTAN DD UNIT M2001
5
4
3
2
SOUND_OUT_R 9 10 11 12 13
CD702
1 2 3 4 5 6 7 8 9 10
FRONT_VIDEO_IN 1 GND SOUND_GND SOUND_OUT SP_OUT GND FRONT_A_IN_R 2 4 5 6 7 8 FRONT_AUDIO_IN 3
CP4202
1
2 3 4 5 6 7 8 9 10 11 12
6
6
9 SOUND_OUT_R 10 SP_OUT_R 11
AV PCB PCB250 TEXA46
OPERATION PCB PCB030 TEXA45
11
RED FFC LM
WHITE
6
5
7
1
2
3
4
5
CP601 GND 1
LOADING MOTOR M101
5
1
2
3
4
5 D-W OUT
6 D-V OUT
CD601 D-PG GND D-U OUT M-GND D-COM GND 1 D-PG OUT
CP820B SOUND+B SOUND_GND H.OUT GND V.FEEDBACK V.OUT VCR_POWER_H ACL MOTOR_GND DEGAUSS_H STANDBY_H UNREG+8V UNREG+8V H.PULSE POWER_FAIL X-RAY_TEST CRT ANODE H.V CP401 CP403 GND 1 CD402 GND 1 1 2 3 4 5 5 4 FBT FB401 1 F CP802_1 1 CP803A 1 HEATER GND_A GND_A NC NC 180V SCREEN CD803 CP803B HEATER GND_A GND_A NC NC 180V 1 2 3 4 5 6 B.OUT R.OUT G.OUT CUT_OFF GND CRT PCB PCB110 TCA382 CP805 1 2 3 4 5 SYSCON PCB PCB010 VMA245 NC NC 2 GND_A GND_A CRT SOCKET J801 CD802 10 11 6 NC 7 DY V801 DEGAUSS_H CP810B GND GND NC AT+12V 8 9 UNREG+8V UNREG+8V AT+13V AT+30V X-RAY_STOP 1 2 3 4 EP/LP HEAD AT+12V AT+13V AT+30V GND GND TV_POWER_H SOUND_GND POWER_FAIL 1 2 3 4 5 6 7 8 10 11 13 CP4001 9 8 7 6 5 4 3 2 1 HF1 (R) HF_COM HF2 (L) SP-CH1 (R) SP_COM SP-CH2 (L) EP/LP-CH1 (R) EP/LP_COM EP/LP-CH2 (L) 9 8 7 6 5 4 3 2 1 SP HEAD HI-FI HEAD CYLINDER UNIT ASS'Y UN4001
4
X-RAY_TEST V.FEEDBACK SOUND+B H.PULSE H.OUT V.OUT GND ACL NC
7
4
TV_POWER_H 9
10
11
12
13
CP820A
CP810A_1
3
10
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
VCR_POWER_H 12
MOTOR_GND 5 6 7 8 9 10 11 CP805B B.OUT R.OUT G.OUT CUT_OFF GND 1 2 3 4 5 NC NC 9 +30V 8 7 +5V 6 5 SDA 4 SCL 3 2 1 AGC
12 13 14
3
TU601
15
CP4003 FE HEAD (GND) FE HEAD (HOT) 2 1 2 1 FE HEAD (GND) FE HEAD (HOT) FULL ERASE HEAD ASS'Y H5002
11 IF NC 10
CP4002 6 5 4 3 2 1 AUDIO PB AUDIO REC CTL+ CTLAE HEAD(-) AE HEAD(+)
FFC 6 5 4 3 2 1 AUDIO PB AUDIO REC CTL+ CTLAE HEAD(-) AE HEAD(+)
HEAD AUDIO CONTROL ASS'Y H5001 AUDIO
2
2 DEGAUSS COIL L503 1
2 2 1 CP502 3 4 5 6 AC120V_60Hz CD501_1 S501 BLACK S502 BLADE WIDE WHITE MAIN PCB PCB070 TMA524
2
CONTROL
AE
FOCUS
FOCUS SCREEN
CP801 1
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 NOTE: THIS INTERCONNECTION DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
1
A
B
C
D
E
F
G
H
No.51987
2-11
2-12
No.51987
TV-20F243
TV-20F243
SCHEMATIC DIAGRAMS
[SYSCON PCB CHROMA/IF SCHEMATIC DIAGRAM]
A
FROM/TO MICON HD VD DEGAUSS_H POWER_FAIL OSD_R OSD_G OSD_B OSD_BLK SDA SCL AFT_M VCR_POWER_H X_RAY_TEST PROTECT PROTECT_A H_CONTROL IIC_OFF TU1_VIDEO
B
C
D
E
F
G
H
CHROMA/IF SCHEMATIC DIAGRAM(SYSCON PCB)
5.7VREF[PCON] 5.7VREF[AT] 8.7VREF
8
8
FROM/TO Y/C/AUDIO/HEAD AMP VIDEO_OUT TU1_AUDIO TU1_VIDEO VD
R616 100uH 0305 220 6.3V 47 KA 3.4 0 C620 2.7 L608
L620 47uH R620 10uH L607
L618
C676 L610 1.5K 100uH 9A06B 1.5M 1/4W
33uH 150P CH R681 CF604 EFCT4R5MW5
FROM/TO DIGITAL COMB FILTER TO SOUND AMP SOUND+B SOUND_GND 18P CH CP604 (CY901) IMSA-9130B-06 P.CON+5V FSC GND C IN R661 8.2K FROM IF D605 11ES1N ACL MONITOR_V AGC AGC_R W803 P.CON+5V C665 C661 B R646 R642 6.8K 1/4W 32 1 3.3 3.0 0 4.7 0 0.1 7.3 5.0 16V 47 YK 0.1 B SOUND+B SOUND_GND H_OUT C660 C659 0.039 B C644 8.2K 16V 10 KANP R638 5.6K R643 47K C700 0.0012 B R652 4.7K C658 0.22 B fsc OUT 25 OSD_BLK FROM/TO DEFLECTION CP820B (CP820A) B2013H02-13P SOUND+B SOUND_GND H.OUT GND W938 C615_1 R641 27K 0.001 B V.FEEDBACK V_OUT ACL H_PLUSE PROTECT_A W942 POWER_FAIL MTZJ11B 8.2 D606 8.2 3.8 C664 63V 1 MKT W939 X_RAY_TEST DEGAUSS_H V_OUT 16V 220 YK MTZJ6.8B D613 V.OUT ACL H.PLUSE 1 2 3 4 5 6 7 8 MONITOR_V C683 6.3V 470 YK Y IN MONITOR V.OUT C654 1 2 3 4 5 6
0.1 B
C640
0.01 B
C614
C641
6.8K BUFFER Q601 2SA1037AK 22P CH C629
25V 220 YK
16
R677
C648_1 50V 0.1 YK
7
7
R622
470 R672
470 C636
R625
0.015 B
R633
C650
8.2K 50V 1 YK C651 47P CH
CF603 EFCT4R5YS5A
0.01 B
D607 VIDEO_OUT 1SS133 C628 180P CH
X602 15
AUDIO_OUT_R
W810
W809
3.3uH
L613
2.0 48 49 2.3 2.4 47
2.0 46
8.2 45
8.2 44 Hi Vcc Hi Vcc
8.2 43 INTELLIGENT MONI
4.0
NC NC 0 0 3.2 3.2 2.0 8.8 4.8 5.5 2.8 5.6 42 41 40 39 38 37 36 35 34 33 VIDEO/CHROMA GND 5.7V REG OUT(FOR CPU) VIDEO/CHROMA GND CHROMA APC FILTER MCU RESET Y SW OUT 5v REG TV/Y IN
R608
6
9 8 6 5 4 3 2 1
TEST POINT AGC_R CP602 09JQ-ST W919 W921 AFT_R AGC_R B.OUT AGC_M IIC_OFF SDA SCL GND W808 R607 220 1/2W C624 TU1_AUDIO 100P CH C623_1 C632 50V 2.2 KA MTZJ8.2C 10M 16V 220 YK D602 D601 R673 1.2M C627 C618_1 R609 220 1 B 22P CH AGC W924 10K
100CT3R505 C656 0.01 B
C649
AUDIO_OUT_L
10K
6
50
C625 1 F
51
AUDIO BYPASS EXT AUDIO IN FM DIRECT OUT VIF VCO F/B VREG Vcc VIF APC FILTER VIF VIDEO OUT VIF GND VIF GND AFT OUT QIF IN RF AGC OUT
R IN V PULSE OUT
52
2.0 NC 3.2 9.0 3.0 2.2 0 0 2.4 0.01 B C621 R614 180K C626 0.1 B 2.9 2.3 C622 0.22 B SAW FILTER CF601_1 TSF5229P3 2 2.7 1.5
53
55
SPOT KILLER
5
AGC_M
56
26
CHROMA+13V
46 SW REG CONT 47 LIMITER IN 48 IF AGC 49 QIF OUT 50 AUDIO OUT
34 EXT C in 33 8.7V REG OUT 32 X'TAL 31 ACL/ABCL
G IN FAST BLK
54
27
28
29
7 INTELLGENT_MONI
3.0 NC
30
2.3
31
VD
5
57
1SS133
CHROMA/IF IC IC601 M61206FP
R618
VIDEO/CHROMA Vcc VIDEO/CHROMA Vcc V RAMP CAP V RAMP FEEDBACK
24 23 22 21 20
4.9 4.9 4.8 2.0 0
220 1/4W
R603
100 1/4W R601 2.2K 1/4W
60
AFT_M
R610
59
58
50V 2.2 KA
R605
C610
22K
64 VIF IN 1 VIF IN
17 V OUT 16 B OUT POWER ON CONT H.PLUSE OUT
61
B IN STRAT UP Vcc
PROTECT/TV_POWER_H 9
62
13
12
19
AGC_M
POWER_FAIL 10 X-RAY TEST 11 VCR_POWER_H 12 DEGAUSS_H 13
AFC FILTER
AGC 1 2 1.8 NC NC 2.5 2.5 2.5 NC 0
63
H VCO F/B
DEF GND
DEF GND
VIF Vcc
VIF Vcc
H OUT
R OUT
220 1/4W
0.01 B
3 SCL 4 SDA 5 6 TECC1040PG32E +5V 7 8 +30V 9 10 IF 11
15 14
R602
SDA
4
FBP IN
G OUT
SCL
18
RF AGC FILTER
4
64
17
C653
1 C674 0.1 F 1.5
2 5.0
3 5.0
4 2.6
5 3.6
6 0.8
7 2.5
8 0
9 0 C647
10 3.6
11 3.4
12 3.9
13 4.8
14 2.5
15 2.5
16 2.4
3
0.01 B
0.01 B
C645
C669
R626
R647
C639
6.3V 220 YK
C612
R624
2K
TU601
0.1 B
C613
3
L601 0.39uH W920
W928
29.5 NC 2.0 0
C692
R658 2.2K R660 2.2K D609 R659 2.2K D608 MTZJ6.8B D612 MTZJ6.8B D620 1SS133
50V 10 YK
R648
R649
2.2K
2.2K
4.9 NC 0 0.1 B C602
100uH 0305
16V 47 YK W943 C634 0.01 B D603 MTZJ11B
R631 6.8K
L604
C601
2.2K
0.01 B 10K
10P CH
C635
50V 1 KA
4
C655
R693 10K 1/4W
P.CON+5V
3
D621 1SS133 D619 1SS133 8.2 R651 0.001 B C670 220P CH 0.001 B C630 C633 C699 100 1/4W 0.3 8.2 0.001 B SW Q604 KRA102SRTK
W930
MTZJ6.8B
FROM/TO POWER GND
100 1/4W
1SS133
P.CON+8V D618 1K R634 R636 100 P.CON+5V[CHROMA] AT+30V P.CON+5V[TU1] SW Q651 2SC2412K 16V 10 KA 5.1 FROM/TO DEFLECTION C671_1 0 R630 R655 W824 100 100 R656 R657
R684
R683
6.8K 1/4W
6.8K
8.2 C741 0.3 PROTECT SW Q609 50V 2.2 YK 2SC2412K 0 R627 TO CRT 10K CP805B (CP805) B2013H02-5P GND 0.001 B G.OUT R.OUT CUT_OFF G.OUT R.OUT B.OUT 5 4 3 2 1
2.2K
100 1/4W
1SS133
6.8K 1/4W
D617
D616
W933
R635
5.7VREF[PCON] 5.7VREF[AT] CHROMA+13V P.CON+5V GND
0 220 1/4W
R685
470
8.7VREF
R692
2
1SS133
R688
2
C734
CD604 (CP403) CH01006A
R679 47K 1
R687 H_CONTROL 1K
(W109) VCR_POWER_H
B.OUT OSD_R OSD_G OSD_B
H_PLUSE
H_OUT
R.OUT
G.OUT
SDA
CAUTION: DIGITAL TRANSISTOR
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.
HD
B.OUT
SCL
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
NOTE: THE RESISTOR MARKED F IS FUSE RESISTOR. THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP IS NON POLAR ONE. F
R.SIGNAL G.SIGNAL B.SIGNAL
G
DEFLECTION SIGNAL AUDIO SIGNAL(REC) TUNER VIDEO SIGNAL
H
PCB010 VMA245
1
A
B
C
D
E
No.51987
2-13
2-14
No.51987
TV-20F243
TV-20F243
[SYSCON PCB Y/C/AUDIO/CCD/HEAD AMP SCHEMATIC DIAGRAM]
A B C D E F G H
Y/C/AUDIO/CCD/HEAD AMP SCHEMATIC DIAGRAM
8
VCR_A_MUTE H.AMP_SW1 C_ROTARY COMP
(SYSCON PCB)
P.CON+5V ENV_DET H.SW P.CON+5V Y/C_DATA Y/C_CS Y/C_CLK FSC
8
R4046
L4005
47uH 0305
R4054
12K
22K
22K
R4047
2 12K L4006 47uH 0305 5.1 R40414.0 1.8K 50V 1 KA 6.3V 47 KA C4064 BUFFER Q4012 2SC2412K 3.4
R4044
W854
R4045
1K
R4043
C4060
0.01 B
C4063
7
FROM POWER P.CON+5V GND
FROM IN/OUT 1.8K FRONT_V_IN
7
(S801) C4062 B
0.022 B
FROM/TO HI-FI TU2_AUDIO
0.1
W988
50V 1 KA
C4069
C4065
R4039
NORMAL_A Y/C_AUDIO FSC HF2
8.2K
0.022 B
C4058 C4059 50V 1 KA R4038 680K 0.1 B 6.3V 47 KA C4061 0.01 B C4078 2.2K 1/4W 0.1 B R4036 3.3M 0 2.2 0.8 43 42 41
4Fsc PLL OUT AUTO-BIAS VSS CLAMP CLOCK 0 VSS
R4042
1.5K
C4066
C4067
6
X4001
HF_COM HF1
Y/C/AUDIO/CCD/HEAD AMP IC IC4001 LA71205M-MPB 0.5 2.8 60 C4016 2.2 61 0 62 4.0 63 1.8 64 C4086 0.1 B 0.7 65
P
100CT3R502
FROM/TO MICON Y/C_CLK Y/C_DATA Y/C_CS H.SW SD_VIDEO ENV_DET VCR_A_MUTE CTL+ CTLR4034 C4048 16V 10 KA C4049 C4053 50V 1 KA C4054 0.1 C4050 50V 0.22 KA W859 C4051 MTZJ13B D4003 6.3V 33 KA R4032 220 R4029 C4082 47K 33P CH L4004 P.CON+5V R4065 2.2M 50V 1 KA C4046 1 W855 22uH 0305 W856 VIDEO_OUT SD_VIDEO 180 1/4W R4048 DUMMY_V.SYNC B W801 50V 4.7 KA C4057 50V 1 KA C4047 FRONT_V_IN 50V 1 KA FROM IF VIDEO_OUT FROM/TO CHROMA/IF TU1_VIDEO TU1_AUDIO VD VIDEO_OUT 82K R4035 100K C4052 50V 1 KA C_ROTARY DUMMY_V.SYNC V.REC_ST_H H.AMP_SW1 COMP SD_SYNC
6
FROM/TO CYL CP4001 TOC-C09X-A1 9 8 7 6 5 4 3 2 1 HF1 (R) HF_COM C4083 22P CH HF2 (L) SP-CH1 (R) SP_COM SP-CH2 (L) EP/LP-CH1 (R) EP/LP COM EP/LP-CH2 (L) P.CON+5V 6.3V 47 KA 0.33 B C4009 C4055 22uH 0305 L4001 C4019 0.047 F 0.068 B
59
0 58
0 57
0 4.8 4.8 4.8 5.0 1.9 2.6 4.0 3.3 3.3 2.3 5.0 5.0 56 55 54 53 52 51 50 49 48 47 46 45 44
SERAIL DECODER C-VCC VX01 320FH VCO
P R
OUT ENV COMP DET KILL DET HA GND CHROMA DET ACC DET
AUDIO C-ROT C-GND MUTE RF-SW HA SW IN
SLD
B
40
ALWAYS VDD 5V
1.7
TIMMING DRIVER CCD
BGA BGA
BUFFER Q4010 2SA1037AK 1.7 2.3
OUT
39
38
REC APC
PB APC
REC AFC
0 3.0 37 2.8 36 3.1 35 3.1
0
R
P
BEFORE
IN
AFTER
5
0.7 66
R H
P R
BGA
R P
CNC PB AMP B.D
P
R4033
NC
VCA VCA CLAMP VCP
5
0.7 67
P
L
5.0 68
HA VCC
C-LPF
1.7 69
P
33 2.0 32 4.0 31 2.0 30 2.3 29 2.3 28 1.6 27 2.9
Main CONV
34 2.6
REG 4V BAL TC1
3.58M BPF2 B-UP AMP ACC AMP ACC DET
R
3.58M BPF1
PB-C
R4012
680 +-1%
1.8 70 0 71 2.0 72
P H L R
+
1 2 3
4.21M BPF HA PRE GND Sub CONV
YNR/COMB
P R R
VIDEO AGC
DETAIL ENH NL EMPHA
R
P
CLAMP
P
2.0
N.L. DEEM NC1
PB-C
1/2 FBC
R P R P
4
2.0
NL EMPHA FM MOD
R-EQ TEST NORMAL
73
Y-LPF
R
Y/C MIX
4
P
AGC TC2 6DB
0 75
A-GND
1 2 3
74
76
W852
77
A-VCC ALC DET PB,EE EQ AMP SP,LP PB,EE REC:LPP R
C4021 0.1 W853 B C4023 6.3V 22 KA
2.3 78 0 79 2.3 80
Vref 2.3V
24 4.9
Y-VCC
TU1_AUDIO
W851
1
F
4.9
ALC
R P
LPF
LINE AMP
REC FM-EQ FM AGC PB FM EQ S-EQ
VHS SOPB
25 0 23 2.8 22 1.8
B
TU2_AUDIO
C4020
2.2
DOUBBLE LIM
FM DEM
SUB LPF MAIN DE-EM
QV/QH SYNC SEP V.SYNC SEP
R
26 3.6 21
P
R
P
C4075 0.1 B
3
NORMAL_A R4055 12K FROM/TO HEAD AUDIO CONTROL P.CON+5V CP4002 IMSA-9604S-06Z14 6 5 4 3 2 AUDIO PB AUDIO REC CTL+ CTLAE HEAD(-) AE HEAD(+) 0 AUDIO PB SW Q4001 KTC3198T 0 (Y,GR) FROM/TO FULL ERASE HEAD CP4003 TMC-T02X-E1 2 1 FE HEAD(GND) FE HEAD(HOT) GND HOT AUDIO PB SW Q4002 KTC3198T (Y,GR) 0 0.7 CTL+ CTL5 560 R4002 C4004 6.3V 220 YK 100V 0.022 MKT 10K C4002 5.3 SW Q4003 KRA103SRTK R4001 5.2 V.REC_ST_H 0 COIL,BIAS OSC T4001 1626009 R4056 8.2K
AUTO PHASE PHASE EQ EQ BIAS fo-ADJ Q-ADJ
FM AGC FIL
Y-GND
MAIN EMPHA S DET FIL
4.7K
3
C4012 1/4W R4004 6.3V 22 KA L4008 100uH 0305 R4062 6.8K L4003 100uH 0305 0.01 B R4010 C4005 3.3K
1 2.2 2.2 C4028
2 2.3 0.1 B
3 2.2
4 2.2
5 2.3
6 2.3 C4032
7 2.2 0.0033 B
8 2.3 R4022
9 2.4 820
10 5.0
11 1.0
12 1.0
13 1.7 3
14 1.4
15
16 0 0
17 NC 1.5
18 0.1
19 2.5
20
5.0 R4028 47K 0 5.0 SYNC IN Q4007 2SC2412K 0.7 R4026 3.4 39K 1/4W 0 C4045 BUFFER Q4009 2SA1037AK
C4036 V.ENV 390P B C4037 0.1 B
L4009 22uH 0305 C4043 6.3V 100 KA 0.1 B C4042 SD_SYNC
15
C4025 6.3V 470 YK
R4017 6.8K R4018 12K
R4025
25V
0.01 B 4.7
1K 0.001 B R4019 50V 3.3 KA R4058 330K C4029 C4031 0.01 B
R4024
50V 3.3 KA
1.5K
BIAS CTL Q4005 KTA1266T (Y,GR) 0.2
100
C4033
4.7
C4077
R4057
C4034
22K
KA
6.3V 33 KA
R4021
TP4001 NC
C4027
5.0
R4011 22K
AMP Q4013 2SC2412K R4060 270P CH C4071
390
0
R4014
2
C4038
10M
5 4
2 3
0
180P CH
0.33 B
C4044
0.1 B
C4041
27K
5.1
R4023
C4035
6
1
6.3V 220 KA
1
2
180 16V 10 KA
10M 1/4W
R4020 C4030
0.015 B
C4006
R4059
0 R4069
R4061
0.7 R4003 10K
BIAS OSC C4010 Q4006 0 KTC3203_ 6.3V 47 KA YT 2.2
0.01 B
1.5K
4
R4005
0.047 B
0 1.5K 10M
C4022
6
4
S102X
S102Y
C4014
NC
15.6KHZ TRAP L4007 STP-01064
Y/C_AUDIO W857 PCB010 VMA245
1
2
0
VD
1
NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK
CAUTION: DIGITAL TRANSISTOR NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CAUTION: DIGITAL TRANSISTOR
3
AUDIO SIGNAL(REC) RECORD COLOR SIGNAL AUDIO SIGNAL(PB) RECORD LUMINANCE SIGNAL PLAYBACK COLOR SIGNAL PLAYBACK LUMINANCE SIGNAL
E F G H
1
A
B
C
D
No.51987
2-15
2-16
No.51987
TV-20F243
TV-20F243
[SYSCON PCB MICON SCHEMATIC DIAGRAM]
A B C D E F G H
MICON SCHEMATIC DIAGRAM
FROM/TO POWER CAP_CTL
(SYSCON PCB)
FROM/TO HI-FI W874 CENTER_LED V.REC_ST_H HIFI_ENV HIFI_H.SW SCL SDA ST_SELECT VCR_A_MUTE C1071_1 330P B SD_SYNC OSD_BLK OSD_B R1004 1K C1056 R1032 4.7K 0.1 B W871 10K
8
OSD_R
CYL_CTL
REEL_T
Y/C_DATA
AT+5V[UCON] GND P.CON+5V 0.0033 B AT+12V W823 R1047 C1030 10K W860 MOTOR_GND D1001 POWER_FAIL MTZJ11B 4.1 4.9
W992
V.REC_ST_H
Y/C_CLK
Y/C_CS
OSD_G
SDA
SCL
AT+5V[BACKUP]
8
R1007
R1035
270
R1029
R1045
R1038
4.9
BUFFER Q1008 2SA1037AK
0.1 B 4.7K 3.3K 220
270
C1065
R1036
C1009 220P CH C1067 100P CH C1023 220P CH C1010 220P CH C1037 390P CH C1034 1K 0.1 B R1031
R1028
22K
C1028 R1044 R1042 0.0068 B R1021 3.3K R1017 220 270 0.1 B 33K
SERVICE TP1001 NC
FROM/TO Y/C/AUDIO/HEAD.AMP Y/C_CLK Y/C_DATA Y/C_CS 9 H.SW SD_VIDEO
7
STANDBY-H FROM/TO DECK CP1001 TMC-J12P-B2 1 2 3 4 5 6 7 8 9 10 11 12 CAP_FG CAP_VCO VCC CAP/M/F/R I_LIMIT GND[M] GND LD/CY_VCO CAP_CTL LDM_CTL CYL_FG/PG CYL_CTL CAP_CTL LDM_CTL CYL_FG/PG CYL_CTL R1001 IIC_OFF CAP_FG BOT SENSOR Q1002 ST-304L EOT SENSOR Q1013 ST-304L 5.2 220 1/4W 0 R1002 5.2 0 BOT EOT 2.8 CENT SW 4.8 Q1006 KRC103SRTK 3.7 D1003 LNA2702L010R 330K TAB SW. SW1001 TAB_SW CENTER_LED CTLMXS01380MPP0 CTL+ R1012 10K 3.3K R1008 0.0039 B 1K C1013 R1018 4.7K 11 W866 VCR_A_MUTE TV_A_MUTE R1077 1K 3.3K 1/4W R1016 CAP_F/R CAP_LIMIT S807Y W869 R1039 C1002 35V 330 YK CAP_FG C1041 0.1 B D1014 3.3K 1/4W
C1035 220P CH C1031 0.001 B
7
C1029
R1033 1K
C1062 1 B HD VD ENV_DET VCR_A_MUTE CTL+ CTL-
R1053
R1020
MTZJ6.8B
22K
220
NC
NC 680P CH C1038
8 R1034 1M
DRUM-PWM
NC 4.9 2.5 2.6 0 0.1 4.8 0 0 4.8 0 4.9 4.2 0 2.3 1.6 2.1 5.2 0 5.2 0.9 0.9 0 1.8 2.5 0 0 0 0 4.8 0 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 VOLUME/REC_AGC CAP-PWM V_REC_START_H VHOLD NUA OSD OUT1 JUST CLOCK OSD-VCC NC(AV3) BBE_H V-SYNC H-SYNC SCLK CENTER LED R CS SDATA G REEL-S B HLF CAP FULL FF/REW-L SERVICE REEL-T CVIN SD-IN 81 IIC-DATA1 0 5.1 NC 0 NC 5.1 5.9 5.2 2.5 0 2.0 0.0022 B R1043 4.7K C1015 10V 47 KA C1018 50V 4.7 KA R1013 560 1/4W C1016 16V 22 KA R1009 560 1/4W C1020 16V 10 KA 7 0.6 2.5 2.5 0.2 0 2.5 2.6 2.5 5.2 5.2 0 IIC-CLK1 50 5.2
C_ROTARY DUMMY_V.SYNC TAB_SW V.REC_ST_H H.AMP_SW1 COMP SD_SYNC C1046 2.2uH R1058
82
49
6
6
AV1 NUB 81 VCR_A_MUTE 82 TV_A_MUTE 83 EXT_A_MUTE 84 NC(TUNER_CTL) 50 TAB SW 49 OSD-VSS 48 AV2 TIMER SYSCON MICON IC IC1001 OEC7071A OSC-OUT2 OSC-IN2 CLKSEL NC(CS_REC_LED) X-RAY_TEST VSS X-OUT(12MHz) 98 AMP-VCC 99 ANALOG VCC 100 DEW/ST_SELECT 33 PLAY LED 32 RENT_H / OTPB_LED 31 ON-TIMER LED DUMMY-V.SYNC COLOR ROTARY X-IN(12MHz) VCC XC_OUT(32KHz) XC_IN(32KHz) RESET-L HEAD.AMP.SW REMOCON-IN VIDEO-MUTE VIDEO-H.SW ENV-CMP-IN STANDBY-H H CONTROL HI-FI-H.SW VCR-POWER DEGAUSS_H TV-POWER T-REC LED PROTECT
85
POWER_FAIL_L IIC OFF CAP-FG AMP-VSS NC DRUM-FG/PG AMP-VREFOUT AMP-VREFIN C CTLCTL+ AMP C CTL AMP-OUT VIDEO-ENV AFT(MONI) CAP-LIMIT
46
0 NC 4.8 NC 4.8 L1001 2.7K 0 2.6 2.5 5.2 NC 0 0 0 2.6 2.1 5.2 1.3 1.5 5.2 NC 4.9 NC 0 0 10 X1002 100DA32R01 C1050 20P CH 12
83
84
47
48
FROM/TO CHROMA/IF HD VD DEGAUSS_H POWER_FAIL OSD_R
86
45
20P CH C1047 18P CH
87
44
88
43
R1040 33K 1/4W
C1014 0.1 B
89
42
90
41
CYL_FG/PG
R1006 1K 1/4W
X_RAY_TEST C1040 18P CH C1048 18P CH C1049 22P CH RESET X1001 100CT01207
OSD_G OSD_B OSD_BLK SDA SCL AFT_M VCR_POWER_H X_RAY_TEST PROTECT IIC_OFF PROTECT_A H_CONTROL
C1001
91
6.3V 330 KS
93
C1026
94
95
96
R1011
220K
6.3V 100 KA
0 4.8 0
R1003
C1011
98
MSSEN-A
MSSEN-B
HI-FI-ENV
CAP-FWD
AFT(REC)
X-RAY IN
LDM CTL
100 99
REC LED
KEY 1
BOT
EOT
4
31
ST_SELECT
KEY 2
32
0.1 B
33
FF/REW_SW Q1004 KRC103SRTK
97
C1022
0.0039 B
34
C1027
35
36
37
0.001 B
38
C1019
92
39
40
5
5
ON_TIM_LED FROM/TO IN/OUT TV_POWER_H VCR_POWER_H H.SW COMP ON_TIM_LED REC_LED T-REC_LED KEY_A KEY_B PROTECT SW Q1014 KRC103SRTK 0 TP1002 H.SW NC STANDBY-H 4.9 PROTECT_A 0 0 0 PROTECT SW Q1007 KRC103SRTK REMOCON_IN TV_POWER_H
4
1 2 3 4.9 1.4 0
4 0
5
6 7 8 1 0 2.4 2.2 0
0 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 9 4.9 0 5.2 5.2 0 2.2 0 0 0 5.2 2.3 2.6 2.6 0 0 0 4.9 0 0 5.2 5.2 0 NC 1/4W 1K
R1024
W868
HIFI_H.SW
DUMMY_V.SYNC
R1014
560
4.7K 1/4W
NC
TP5502
W817
R1052
REMOCON_IN
C_ROTARY
3
MS_SEN-A MS_SEN-B CAP_LIMIT HIFI_ENV ENV_DET CAP_F/R AFT_M KEY_A BOT EOT KEY_B
4.8 H_CONTROL T-REC_LED PROTECT REC_LED 4.7K 1/4W R1066
3
10K 1/4W HIFI_H.SW
H.AMP_SW1
LDM_CTL
DEGAUSS_H
R1062
FROM/TO SOUND AMP TV_POWER_H SDA SCL MS_SEN-B MS_SEN-A REEL_T RESET TV_A_MUTE SCL R1049 4.7K SDA
W862
W863
390 1/4W
0.2 SYSTEM RESET IC IC1002_1 R3111N311A/C-TR R1019 47K
NC 5 NC
0.3
NC 4 NC
MS_SEN B Q1003 RPI-352C40N 5.1 2 2.5 5 EEP ROM IC IC1099 S-24C04BDP-LA SDA 2.6 6 SCL 0 7 TEST 5.2 8 VCC 1 3.9 4 1.4 3 5.1
MS_SEN A Q1009 RPI-352C40N 3.9 2 3 0 1 2.7 4 4.9 1 5.1
R1046
2
2
R1051
OUT 1 5.2 5.2
IN 2
GND 3 0
FROM/TO IF 5.6K SCL
1.2 2
D1002 4 3 0 0.1 REEL SENS Q1005 RPI-303 1SS133 16V 47 KA 6.3V 470 YK C1003_1
1
4 0 0
3 0
2 0
1
NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CAPSTAN AFC SIGNAL TUNER VIDEO SIGNAL DEFLECTION SIGNAL CYLINDER AFC SIGNAL CYLINDER APC SIGNAL B.SIGNAL G.SIGNAL R.SIGNAL
F G
SDA PCB010 VMA245
100P CH R1050
100P CH
VSS
A2
A1
A0
R1083
100 R1087
33K C1006
33K C1008
C1017
0.12 B
C1021
CAUTION: DIGITAL TRANSISTOR
1
A
B
C
D
E
H
No.51987
2-17
2-18
No.51987
TV-20F243
TV-20F243
[SYSCON PCB IN/OUT SCHEMATIC DIAGRAM]
A B C D E F G H
IN/OUT SCHEMATIC DIAGRAM
8
(SYSCON PCB)
FROM/TO OPERATION FROM/TO OPERATION ON_TIMER_LED 10 CP4202 (CD351) 8283_1112_00_000 9 8 7 6 5 4 3 2 SOUND_OUT_R 10 FRONT_AUDIO_IN_L 3 FRONT_VIDEO_IN 1 CP2201_2 (CD757) 8283_1012_00_000 FRONT_A_IN_R REMOCON_OUT 1 11 9 8 7 6 5 4 2 POWER_ON_L
8
SOUND_OUT_L
SOUND_GND
SP_OUT_R
SP_OUT_L
T-REC_LED
REC_LED
KEY_B
KEY_A
AT+5V
GND
GND
NC
W908
7
FROM/TO SOUND AMP C4203 0.001 B SOUND_GND SOUND_L+ SOUND_R+ SP_OUT_R 470P CH C4222 CP4203 06CH01408A 1 GND 470P CH SP_OUT_L C4205 0.01 B ON TIMER LED SW Q4201 DTC114ES 0 (W239) W828 REC LED SW Q4205 KRC102SRTK 3.7 S807X C4201 0.01 B W267
NC
GND
7
R4201
6
FRONT_A_IN_R FRONT_A_IN_L FRONT_V_IN REC_LED ON_TIM_LED
47P CH
C4204
C4218
75
6
0 T-REC LED SW Q4206 KRC102SRTK 0 3.7 0
FROM POWER
5
AT+5V[UCON] TV_POWER_H GND T-REC_LED W883
0 4.8
0 TV POWER LED SW Q4204 KRC102SRTK
5
R2211 4.7K 1/4W R2212
FROM/TO MICON
4.7K
ON_TIM_LED REC_LED T-REC_LED KEY_A KEY_B REMOCON_IN TV_POWER_H
4
4
AT+5V[UCON]
3
TO Y/C/AUDIO/HEAD AMP FRONT_V_IN
REMOCON_IN
KEY_B
KEY_A
3
TO HI-FI
2
FRONT_A_IN_L FRONT_A_IN_R
2
PCB010 VMA245
CAUTION: DIGITAL TRANSISTOR
1
NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
TUNER VIDEO SIGNAL AUDIO SIGNAL(REC)
1
A
B
C
D
E
F
G
H
No.51987
2-19
2-20
No.51987
TV-20F243
TV-20F243
[SYSCON PCB SOUND AMP SCHEMATIC DIAGRAM]
A B C D E F G H
SOUND AMP SCHEMATIC DIAGRAM
8
SOUND AMP IC IC352 AN7522
(SYSCON PCB)
8
+
1 6.6 2 3.5 3 0
4 3.5 5 3.9
L 6 1.3 7 0
R 8 1.3 9 6.6
10 3.5 11 0
+
12 3.5 R357
KA
7
100K 1/4W
C350
50V 0.1
HS353 763WAA0027
7
FROM/TO IN/OUT SOUND_R+ FROM CHROMA/IF B301 SOUND+B C321_2 W5RH3.5X5X1.0 16V 1000 MHE W951 SP_OUT_L SOUND_L+ W952 SP_OUT_R SOUND_GND
6
SOUND_GND
6
25V 33 YK
C357
W945
R353 TV_POWER_H R359 68K 1/4W
C323
FROM/TO MICON
50V 1 KA
5
TV_A_MUTE 47K 1/4W
0 MUTE SW Q350 2SC2412K
2.0
5
0
R310 SCL R309 SDA R313 390 220 1/4W C302 FROM HI-FI R303 AUDIO_OUT_R R316 AUDIO_OUT_L 3.9K 50V 10 KA C312 C304 0.022 B C306 0.47 B 4.4 DIGITAL SOUND CONTROL IC IC301 M62420SP 4.3 4.3 4.4 0 10.5 1.6 41 5 6 7 8 9 0 VR5 VR3 TONE AMP1 I2C BUS REF INTERFACE + VR1 + SIMAMP1 VOLAMP16.5K REF 6.5K 6.5K VOLAMP2 + REF CONTROL SIMAMP2 + 6.5K LOGIC VR2 + TONE 136K 1.8K VR4 VR6 AMP2 20 19 18 17 16 15 14 13 12 11 5.2 5.2 8.9 4.4 4.4 4.4 4.3 4.3 4.4 0 R318 C305 C307 100 R311 C308 0.022 B 0.47 B 100K 0.001 B C303 R307 1 2 3 S2 S1 S4 S6 S8 S7 136K 1.8K + S3 S5 R304 4.7K 0.033 B R305 4.7K 1.8K C317 0.1 MMTS C310 0.022 B 0.1 B C316 L301 100uH 4.4 4.4 4.4 0.033 B R306 1.8K C314 C318 100P CH C319 100P CH 220 1/4W W947
R317
100 50V 10 KA
4
3.9K
C325_1 16V 10 KANP
R358 390
4
R308 C311
3.3K
3
50V 10 KA
3
C309 16V 47 YK
FROM POWER L302 P.CON+9V
16V 47 YK
C315
50V 10 YK
R302
3.3K
C301
2
100uH 0607 P.CON+5V
2
GND FROM/TO CHASSIS CD302 (CD402) CH01408A 1 GND
W991 W985
PCB010 VMA245
1
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.
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARE
1
ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
NOTE: THE RESISTOR MARKED F IS FUSE RESISTOR. THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP IS NON POLAR ONE. F G
AUDIO SIGNAL(REC)
A
B
C
D
E
H
No.51987
2-21
2-22
No.51987
TV-20F243
TV-20F243
[SYSCON PCB HI-FI SCHEMATIC DIAGRAM]
A B C D E F G H
VCR_A_MUTE TU2_AUDIO P.CON+5V P.CON+5V
HI-FI SCHEMATIC DIAGRAM
8
SDA
SCL
FSC
(SYSCON PCB)
L5501 6.3V 47 KA
8
L5503
82uH
C5521 100uH 0.22 B C5514
R5518 3.3K
L5504 C5555_1 220P CH
R5520 220
R5521 220
22uH 0305
24P CH
C5501
C5502
W959
C5530
0.1 B C5531
C5522
0.1 F
0.1 F
6.3V 47 KA
16V 33 KA
C5561 C5534 R5510 50V 4.7 KA C5562_1 560P B C5523 W961 100P CH C5560 100P CH 22K
16V 10 KA
C5538
FROM IN/OUT FRONT_A_IN_L FRONT_A_IN_R HI-FI AUDIO/HEAD AMP/DEM IC IC5501 AN3662FBP
C5519
2.7M
1 F
R5512
2.2 48 49 C5508 0.1 F R5503 10M C5506 C5507 0.1 F 3.9 0.1 F 3.8 5.4 2.9 4.6 2.0 0 ST_SELECT 22 AUDIO_OUT_L L5506 P.CON+9V 0.01 B C6309 100uH 0305 C5510 16V 47 KA R5525 2.2K C5552 16V 10 KA 1.8 4.5 9.0 NC 4.6 C5512 R5501 15K 1/4W R5502 5.6K C5556 0.022 B C5515 0.001 B C5518 16V 10 KA C5513 0.1 F NC 0.2 2.6 1.1 0.7 50V 3.3 KA 0.4
2.1
NC 3.9 47 46
0 2.4 1.8 0.3 45 44 43 42
PILOT DET SL PLL L.R DEMOD (L.R)/SAP SWITCH LOGIC 75uS DE-EMPH LPF
0 5.2 0 NC 39 41 40
0 1.8 38 37
0 2.6 0.7 2.6 36 35 34 33 32 C5540 0.015 B 2.6 C5541 0.22 B 2.6 2.0 2.0 3.9 3.5 C5542 0.1 F 0 TU2_AUDIO 5.3 0 0 0.7 0 2.7 2.6 2.6 0.7 C5543 0.01 F NORMAL_A C5544 0.01 F HF_COM C5545 C5546 0.015 B C5548 16V 10 KA 0.1 F C5547 16V 10 KA C5551 0.1 F FROM/TO MICON V.REC_ST_H HIFI_ENV HIFI_H.SW C5550 6.3V 47 KA SCL SDA ST_SELECT VCR_A_MUTE Y/C_AUDIO HF2 FSC HF1 FROM/TO Y/C/AUDIO/HEAD AMP TP5501 NC HIFI ENV
DEM_BLK INPUT VCA STEREO FILTER SAP DEMOD MUTE VCO-F0 ADJ CTL LOGIC
ZZ-PROM
50
16V 10 KA
R5517
7
7
1K
C5536
51
PNR RCH SW21 SW NOISE SW9 MUTE FROM 1PIN R SW18 BS L NORMAL AUDIO LIMIT PC PB LPF
SW12 PB RCH VCO REC LPF HPF NOISE DET SW10 LINER SW HA1 HOLD TIMING PC AUDIO LIMIT SW14 SW4 SW NOISE PB LPF CURR AMP HA2 + SW13 REC
30
S/N
31
6
AUDIO_OUT_R
D5501 1SS133
52
23
29
V.REC_ST_H HIFI_ENV
TO SOUND AMP AUDIO_OUT_R AUDIO_OUT_L
6
R5526 2.2K
C5516 16V 10 KA C5509 W818
53
28
C5549 0.1 F HIFI_H.SW
54
50V 2.2 KA
AMP
55
MIX SW16 MIX HIFI RCH BPF FM UM LCH BPF
56
L AMP RFC SAP DET SW17 R L L
57
BS FROM 3PIN
58
MIX
59
5
R SW22 SW2 DBX NOISE REDUCTION L MATRIX R INPUT_SW(R) PNR LCH
22
23
24
25
MUTE
26
SW19 R
HIFI
27
5
60
61
S/N MIX REC LPF INPUT_SW(L) LCH VCO
DET AGC
62
SW11
L
63
64
VREF1
1
2
3
4
5 2.6 16V 10 KA
6 2.0 25V 4.7 KA
7 0.4 KA
8 0
9 0.1
10
11 0 2.2
12 2.6
13
14 0 0.1
15 2.6
16
2.6 NC0.1 NC2.6 NC0.1 NC2.2
17
18
19
Y/C_AUDIO
SW15 H
20
NORMAL_A
21
L5505
25V 4.7 KA
50V 1 KA
4
0.1 B
6.3V 33 KA
22uH 0305
4
FROM POWER P.CON+5V P.CON+9V GND
C5525
C5526
C5524
C5527
16V 10
C5532
C5533
50V 1 KA
3
680P CH C5564
50V 1 KA
C5529
R5516
C5537
10K
C5539
3
680P CH C5557 10K
R5508
W813 47K 1/4W R5514 W802 47K
R5507
W805
W815
W806
2
W807
W821
2
FRONT_A_IN_R
REAR_A_IN_R
W820
W819
REAR_A_IN_R
FRONT_A_IN_L
PCB010 VMA245
1
NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
AUDIO SIGNAL(REC) AUDIO SIGNAL(PB)
F G H
1
A
B
C
D
E
No.51987
2-23
2-24
No.51987
TV-20F243
TV-20F243
[SYSCON PCB POWER SCHEMATIC DIAGRAM]
A B C D E F G H
POWER SCHEMATIC DIAGRAM
8
(SYSCON PCB)
8
7
TO Y/C/AUDIO/HEAD.AMP P.CON+5V GND 12.6 FROM/TO TV POWER CP601 (CD404) 003P-2100 1 GND 7.8 5.6 7.5 R690 1K 1/2W D604 SB10-03A3 5.5 5.5 7.8 5.2 REG. Q602 KTC3203_YT 5.2 REG. Q603 KTC3203_YT R682 R663 100 R662 50V 22 MHE 100 1/4W 16V 22 KA 50V 22 YK 100 C685 50V 1 MHE C680_1 C684_1 100 R686 100 7.8 5.6 5.2 REG. Q605 2SC13840W 5.2 REG. Q606 2SC13840W 8.8 8.2 REG. Q608 2SC13840W
7
TO IF P.CON+9V
CD601 (CP403) CH01408A
TO MICON AT+12V MOTOR_GND AT+5V[UCON] AT+5V[BACKUP] P.CON+5V GND TO IN/OUT AT+5V[UCON] C688_2
6
1
GND
6
R644
5
9V REG IC IC602 KIA78R09API
GND
5V REG.IC IC603 KIA78R05PI
5
TO SOUND AMP P.CON+9V
C608 IN 1 F 12.6 1 9.0 OUT 2 0.3 GND 3 8.2 7.7 SW 4 IN 1 5.2 OUT 2 0.3 GND 3 8.8 R669 1K 1/4W 35V 47 YK SW 4
P.CON+5V GND
FROM/TO CHROMA/IF 5.7VREF[PCON] 5.7VREF[AT] 8.7VREF AT+30V
1 YK
4
FROM TV POWER W879 C643 CP810B (CP810A_1) B2013H02-11P 1 2 3 4 5 6 7 8 9 10 11 AT+12V MOTOR_GND UNREG+8V UNREG+8V AT+13V AT+30V X-RAY STOP NC GND GND NC W990 C677
4
R668 C694 HS603_1 763WAA0081 15 1/4W 470 1/4W 6.3V 100 YK P.CON+5V P.CON+8V P.CON+5V[CHROMA] P.CON+5V[TU1] GND CHROMA+13V W996
50V
R667
TO HI-FI P.CON+5V P.CON+9V GND
3
3
TO MICON W850 STANDBY-H
2
2
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.
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
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
PCB010 VMA245
1
1
A
B
C
D
E
F
G
H
No.51987
2-25
2-26
No.51987
TV-20F243
TV-20F243
[SYSCON PCB IF SCHEMATIC DIAGRAM]
A B C D E F G H
IF SCHEMATIC DIAGRAM
8
(SYSCON PCB)
8
7
TO CHROMA/IF MONITOR_V AGC_R AGC
7
6
6
5
TO Y/C/AUDIO/HEAD AMP VIDEO_OUT
5
VIDEO_OUT
4
MONITOR_V
W982
4
FROM POWER
P.CON+9V AGC_R
3
TP6001 +9V
3
NC W970
2
2
NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THE RESISTOR MARKED F IS FUSE RESISTOR. THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP IS NON POLAR ONE.
PCB010 VMA245
TUNER VIDEO SIGNAL
1
1
A
B
C
D
E
F
G
H
No.51987
2-27
2-28
No.51987
TV-20F243
TV-20F243
[MAIN PCB TV POWER SCHEMATIC DIAGRAM]
A B C D E F G H
TV POWER SCHEMATIC DIAGRAM
8
5A 125V CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE 5A 125V(F501) ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQUES D'INCEIE N'UTILISER QUE DES FUSIBLE DE MEME TYPE 5A 125V(F501) RELAY DRIVE Q504 KTC3198-AT(Y,GR) 0.2 0.6 R515 10K
(MAIN PCB)
8
DEGAUSS_H
FROM/TO DEFLECTION W810 PROTECT DRIVE Q502 2SA1624 PROTECT C510 100V 10 MHE R506 +B SOUND+B DEGAUSS_H R504 2.2K 1/4W AT+13V POWER_FAIL VCR.POWER_H R502 D505 0.56 2W +B TP501_1 +B SOUND+B 16V 1000 YK C520_1 SOUND_GND GND
D516 1SS133
R513
7
RY501 ALKS321 2 DEGAUSS COIL L503 8R200024 1 2 TH501_1 1 3 CP502 A1561WV2-2P 1
0 C502 10K 0.1 B 22K 1/4W
7
2.7M 1/2W
R500
4
250V 0.001 KX
250V 0.001 KX
T501_1 81350774 8 7 6 DC IN SB 9 SG 10 11 HG COL 8V LG
W801
SB290S D509 SB290S
2
6
1
ZPB45BL3R0A 1 R501 7W 1 D501 GBL06L-6177 1 200V 470 UP 3 C507 1.5M 1/2W W802
C530
C533
6
53 D510 RU2AM-EIC 200V 220 YXF R512 31.5 22K 1W 30.9 R518 10K 1/4W W804 FROM/TO POWER 270K 1/4W C503 R519 0.1 F CP810A_1 (CP810B) 52147-1010 GND GND 3.5 SWITHING Q505 2SC2909 4.8 0 UNREG+8V MHE UNREG+8V AT+30V STAND_BY_H R520 47K NC AT+12V UNREG+8V UNREG+8V AT+13V AT+30V 1 2 3 4 6 7 8 9 MOTOR_GND 5 0.022 B D515 MTZJ33B C528 SWITHING Q503 2SA1371 31.4
PH001 003P-2100
PH002 003P-2100
5
12 13 14
275V 0.22 PHE840
PHE840
AC120V_60Hz CD501_1 0R414903 BLACK
L501 1R5A472F24
2 4
AT+30V
S501 C505 5A 125V S502
C506
4 2
3 1
2 1
ADJ 13V GND 12V
C517_1 15 2KV 0.0022 16 R
BLADE WIDE
WHITE
5
F501 5A125V 51MS050LCC FH502 EYF-52BC FH501 EYF-52BC
275V 0.1
R538
C521
NC 3 NC
5
C540
R522 4.7 R533 470 1/4W R534 22K C543 0.47 F
D 176.0 4.7 G S0 R535 0.1 1W D524 D504 1K R527
2KV 0.0015 R
POWER Q501 2SK3326(2)
B502 W4BRH3.5X6X1.0X2 R
C518 500V 470P B
C504
2KV 0.001
D514 SB290S D512 SB290S
11E1-EIC
C531
16V 2200
4
0 POWER CONTROL IC IC501 TEA1507P/N1 5 Isense 4.4 6 DRIVER 0 NC 11.4 7 8 NC HVS DRAIN
11E1-EIC
HS501 763WAA0166
ST.BY_H/CAP_VCO 10
4
R529 C523 0.22 1W D523 1N4937 SB290S C501 2KV 470P R 25V 470 MHE
AT+13V
DEM
CTRL
GND
FEED BACK IC506 LTV-817M-VB 1 4 7.3 C554 16.9
4 1.3 R523 1.2
3 0
2 16.7
VCC
1 D508 1N4937 R516 R511 50V 10 YK 22 1/2W D507 1SS133 C537 R505 1K 1/4W POWER_FAIL
3
D506
0.01 B 6.0 6.3
6.3
1.4
1K 680K 0.022 B 25V 47 YK R510 680K
3
2
+B ADJ VR502 1K METAL
FEED BACK 5.4 SWITCHING Q507 KTC3198-AT (Y,GR)
3
R531
R525
C541
C542
D519 SB290S
R532
470
1K
1/4W 39K 1/4W
R553
250V 0.0022 KX
1SS133
D533
1K
MTZJ5.6B
+-1%
W809 25V 1000 YK
W821 D525 1SS133 D526 1SS133 SOUND+B UNREG+8V
R514
2
D528
C529
2
R554
2.7K
18K
CAUTION:
MTZJ4.7B
IS THE LIVE CONNECTION
D517
R507
100 1/4W
STAND_BY_H
C524
PCB070 TMA524
1 NOTE: THE RESISTOR MARKED F IS FUSE RESISTOR. THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP IS NON POLAR ONE. A B
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 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
C
D
E
F
G
H
No.51987
2-29
2-30
No.51987
TV-20F243
TV-20F243
[MAIN PCB DEFLECTION SCHEMATIC DIAGRAM]
A B C D E F G H
DEFLECTION SCHEMATIC DIAGRAM(MAIN PCB)
8
FROM/TO POWER CD402 (CD302) CH01004A 1 GND
Vcc
V.OUTPUT IC401 LA78040
THERMAL PROTECTION AMP + PUMP UP GND
8
FROM/TO CHROMA/IF CP403 003P-2100 1 GND
1 3.9
2 25.5
3 1.3
4 0
5 12.9
6 24.8
7 3.9
11E1-EIC
7
D401
C406 100 YK
7
1K 1/2W TO DY CP401 A1561WV2-A5P 5 L402 ELH5L4113 R448 FB401_1 1K 1W 1 C450 1.8K 1/2W R407 470 1/2W 2KV 0.001 R 6 2 9 C431 500V 0.001 B 250V 22 YK C430 10 8 1N4937 D413 NC 4 3 8 ECWF NC 5 COL E180 B+ AFC HEA TER GND E12 E27 GND E8 F S GND 0 11 ABL V801 A51LVV896X01(O) 3220054R HV NC 4 3 2 1 R421
35V
57
680 1/2W
680 1/2W
R417
R419
R412 1.2K 56 R411
R413 39K +-1%
R416 15K +-1% 50V 1 YK V.LINEARTY VR401 47K METAL MTZJ30B
FROM/TO CHROMA/IF CP820A (CP820B) 52147-1310 1 2 3 4 5 6 7 8 SOUND+B SOUND_GND H.OUT GND V.FEEDBACK V.OUT ACL H.PULSE PROTECTER POWER_FAIL X-RAY TEST VCR_POWER_H DEGAUSS_H HS401_1 763WSAA013
C405
MTZJ30B
MKT
1 1/2W
R467
6
25V 2200 YK D404 D403
C407_1
W835
22K +-1%
470 1/2W V.POSI VR402 1K METAL
R463
6
C434
R401_1 100 2W
D406 1SS133
D405 1SS133
R402 150 2W 250V 1 MHE C422
100V 0.22
1 1/2W
R418
R464
5
9 10 11 12 13
7
9 10 8 6 11
R G B 5 7 1
5
L401
4.7mH 0909
150 1/2W
31.0 5 1 NC 0.2 100V 0.033 MKT 54 C417_1 22.3 4
0
R447
T401_1 ETH14Y47AY
250V 0.39
C423
2
1
TO CRT
CD802 CU823001
1.3 55 W816 1.3
247.6 H.OUTPUT Q406_1 2SD2499 MPP
FROM/TO TV POWER
C428_2
DEGAUSS_H VCR.POWER_H R456 SOUND_GND SOUND+B POWER_FAIL AT+13V GND PROTECT H-DRIVE Q405_2 KTC3227_Y-AT 14.3 0 0
1.5KV 0.013
4
W823
3
2
0
4
FOCUS C429_1 SCREEN 500V 0.0022 B
120 1/2W
50V 22 YK
100 1/4W
R460
C418
HS402 763WSAA013
W817
W814 D411
0 50V 22 YK 17.9 10K 35V 470 MHE 0 3.3K +-1% C433 SWITHING Q403 KRC111MAT R443
1N4937
+B
C421
R450 TO CRT 6.8 2W 180V 6 5 180V NC NC GND GND HEATER CD803 WDL6030038
C419
3
47 YK
R431
3
15K +-1%
SWITHING Q404 KTA1266-AT 17.9 (Y,GR) 10.0
R428
16V
R444
10K
NC
17.9 D412 MTZJ6.8B RMPG06J D410 100V 0.1 MKT
D409 HZ11B3L
R442 12K +-1%
NC 4 GND 3 GND 2 HEATER 1 22K 1/4W C439_1 500V 180P B R423 10K 1/4W R490 CP803A (CP803B) B2013H02-6P
C432
W854 R453 100K 1/4W PCB070 TMA524
2
2 1 CP506 RF-H022TD-1190
2
CD506 JM-2W-96
2
1
DEFLECTION SIGNAL
+B(A) +B(B)
1
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.
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THE RESISTOR MARKED F IS FUSE RESISTOR. THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP IS NON POLAR ONE.
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
CAUTION: DIGITAL TRANSISTOR
1
A
B
C
D
E
F
G
H
No.51987
2-31
2-32
No.51987
TV-20F243
TV-20F243
[DIGITAL COMB FILTER SCHEMATIC DIAGRAM]
A B C D E F G H
DIGITAL COMB FILTER SCHEMATIC DIAGRAM
8
(SYSCON PCB)
8
7
7
C903_1
C904
6
27P CH
50V 0.47
YK C907 6.3V 470 YK C906 0.01 B
L901 820uH
6
0.01 B C902
0.01 B
DIGITAL COMB FILTER IC IC901 TC90A45F
1 AVSS
0
2 VRB
2.4
3 VRT
3.0
4 ADIN
2.6
0.01 B 2.6
C901
C905
5 BIAS1
6 TEST
0
7 KILLER
0
8 DVDD
5.5
C923 R901 BIAS2 BIAS3 CKIN 27K 2.5 AVDD DVSS YOUT COUT VFIL 150P CH C914 5.4 50V 3.3 KA R905 1K
5
5
16 5.4 C913
15 3.8
14 1.4
13 4.2
12 3.6 R914
11 2.2 820 C908
10 2.5 100P CH
9 0
1.9
BUFFER Q901 2SC2412K
180P CH
220P CH
0.01 B
0.01 B
C912
C911
C909
0.01 B
FROM/TO CHROMA/IF CY901 (CP604) IMSA-9130S-06L MONITOR V.OUT 6 Y_IN C_IN GND L902 150uH FSC P.CON+5V 5 4 3 2 1
R902
R903
R904
R913
4
L904 10uH 0305 R912 6.8K 5.0 BUFFER Q903 2SC2412K L903 15uH 0305
1K
0.01 B
C910
C922
24K
560
1K
C916 16V 47 YK C917 120P CH 0.01 B
4
C921 0.1 B 56P CH C924 100P CH
1.7 1.1
4.4 BUFFER Q902 2SC2412K
2.1 2.4
R906 1K
R909 R911 R910 3.3K 1K 100
C919
R908 1.2K
3
C920
PCB300 VEA975
3
2
2
1
NOTE: THE RESISTOR MARKED F IS FUSE RESISTOR. THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP IS NON POLAR ONE.
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.
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
TUNER VIDEO SIGNAL LUMINANCE SIGNAL COLOR SIGNAL
G H
1
A
B
C
D
E
F
No.51987
2-33
2-34
No.51987
TV-20F243
TV-20F243
[CRT PCB SCHEMATIC DIAGRAM]
A B C D E F G H
CRT SCHEMATIC DIAGRAM
8
(CRT PCB)
8
7
TP804
82uH 12K 2W 0607
R804
R
CRT PCB
RED AMP Q810 2SC1740S W853 58 3.0
7
7.3 2.4
L802
R828 2.7K 1/4W
RED AMP Q801 KTC4217(O,Y) 2.4
121.6 2.1
6
R813 220
D801 R805 1SS133 R810 1.8K R817 220 56
6
TP805
5
W827
R806
G
12K 2W
680P CH
C804
GREEN AMP Q811 2SC1740S W849 3.0
104.1 132.9 7.3 132.5 5 2.4 R829 2.7K 1/4W 0 4 6 7 8 9 10 11 132.8 0
5
FROM CHROMA/IF CP805 (CP805B) 52147-0510 5 4 GND CUT_OFF G.OUT R.OUT B.OUT R814 220
GREEN AMP Q802 KTC4217(O,Y) 2.2 D802
60 121.6
1
0
F
1.9
J801 CVT3275-5101
2 1
1.8K 560P CH R819 C805 220
56
R811
R807
4
3
1SS133
4
L801 82uH 12K 2W 0607 R808 B TP806 100uH BLUE AMP Q812 2SC1740S W850 3.1 2.5 C814 R830 BLUE AMP Q803 KTC4217(O,Y) 2.3 2.0 R815 D803 R809 FROM DEFLECTION 56 1SS133 R812 R821 1.8K PCB110 TCA382 59 121.4 C807 GND_A GND_A NC GND_A GND_A 220P CH HEATER 2.7K 1/4W 7.3 YK
3
L804
3
W808 C808 2KV 0.001 R
250V 2.2
ACCESSORY
180V
NC
2
220
TM101 RC-DQ
BL001 WEV1020-9004
2
CP802_1 (CD802) A2361WV2-2P
CP803B (CP803A) B2013H02-6P
680P CH
HEATER
C806
GND
GND
180V
220
GND GND
R.SIGNAL
BT002 R03(AB)E_20_T UM4 BT001 R03(AB)E_20_T UM4
FOCUS
S801
G.SIGNAL B.SIGNAL
6
5
1
2
4
3
2
1
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
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
1
A
B
C
D
E
F
G
H
No.51987
2-35
2-36
No.51987
TV-20F243
TV-20F243
[OPERATION & AV PCB SCHEMATIC DIAGRAMS]
A B C D E F G H
OPERATION SCHEMATIC DIAGRAM (OPERATION PCB)
8
FROM/TO IN/OUT CD702 (CP4202) CH2B032A 1 2 4 5 6 7 8 9 10 11 SPEAKER CD356 1 2 SP352 SG08G35BRA 8OHM SOUND_OUT_R SP_OUT_R 39 CH12440A SP_OUT L+ SP_OUT L16V 47 KA C352 R351 220 1/2W FRONT_VIDEO_IN GND SOUND_GND SOUND_OUT_L SP_OUT_L GND FRONT_A_IN_R NC C353 16V 47 KA R352 220 1/2W NC W809 W806 38 FROM/TO AV CD704 (CP704) CH2D001A FRONT_VIDEO_IN 1 GND SOUND_GND SP_OUT_L GND FRONT_A_IN_R SP_OUT_R 2 4 6 7 8 10
FRONT_AUDIO_IN_L 3
8
3 FRONT_AUDIO_IN_L
SOUND_OUT_L 5
7
SOUND_OUT_R 9 EARPHONE_L 11 EARPHONE_R 12 13
7
6
6
W807
5
FROM/TO IN/OUT CD757_1 (CP4201) CH2A012A POWER ON/OFF SW751 EVQ21505R 0.001 B 1 2 3 4 5 6 7 8 9 KEY-A EVQ21505R 0.001 B C779 T-REC_LED REC_LED KEY-B ON_TIMER_LED CH DOWN SW799 REMOCON_OUT C781 GND AT+5V NC NC R778 820 1/4W EVQ21505R REC/OTR SW795 R771 1K 1/4W EVQ21505R STOP/EJECT SW791 R772 1.5K 1/4W EVQ21505R PLAY SW792 R773 2.7K 1/4W EVQ21505R FF/CUE SW793 R774 5.6K 1/4W EVQ21505R 100 1/2W REW SW794 R766
R754 270 1/4W SLR-342MCT32 SLR-342VCT32 REC/OTR D793 T-REC D791 CS KANTAN/ON TIMER D794
5
SLR-342VCT32 270 1/4W
0 R777 220 KA EVQ21505R VOL DOWN SW797 EVQ21505R 1.5K 1/4W 4.8 4.8 100P B C751 C755
R775 EVQ21505R 820 1/4W CH UP SW798
R776 1K 1/4W VOL UP SW796
R793
6.3V
OS753 PIC-28143TC5
270
1 Vout
R794
2 B+
1/4W
3 GND
4
SPEAKER
10
PCB030 TEXA45
4
CD355 1 2
CH12435A SP OUT R+ SP OUT R-
(AV PCB)
H E 1
SP351 SG08G35BRA 8OHM
FROM/TO OPERATION CP704(CD704) 8283_1312_00_000 1 2 4 FRONT_VIDEO_IN GND SOUND_GND SOUND_OUT_L SP_OUT_L GND FRONT_A_IN_R SOUND_OUT_R SP_OUT_R EARPHONE_L EARPHONE_R NC W813 1 5 4 3 2 6 7 HEADPHONE_JACK J351 HTJ-035-28A W804
2
3 FRONT_AUDIO_IN_L W812
FRONT AV JACK J701_1 JPJ1187-010010
H
4
H
3
E
3
E
5 6 7 8 9 10 11 12 13
3
6 NC 7
2
5
2
TUNER VIDEO SIGNAL AUDIO SIGNAL
PCB250 TEXA46
1
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 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
No.51987
2-37
2-38
No.51987
TV-20F243
TV-20F243
WAVEFORMS
Y/C/AUDIO/CCD/HEAD AMP MICON
PB 0.5V 20µs/div POWER ON 0.5V 10ms/div PB 1.0V 0.5ms/div 5V 20µs/div 20.0V 20µs/div
1
7
12
55
60
OPERATION
POWER ON 100mV 0.1µs/div POWER ON 1.0V 10µs/div 1.0V 1ms/div 1V 10ms/div
2
8
38
56
PB 10mV 20us/div
PB 1.0V 10ms/div
1.0V 1ms/div
0.5V 5ms/div
3
9
39
57
TV POWER
PB 0.5V 1ms/div PB 1.0V 5ms/div REC/PB 5V 0.1ms/div
CRT
20.0V 20µs/div
4
10
53
58
DEFLECTION
REC 10.0V 5us/div PB 0.5V 0.5ms/div 0.5V 20µs/div 20.0V 20µs/div
5
11
54
59
NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
No.51987
2-49
2-50
No.51987