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Colour TV Service Manual
2
Model: CT-21LS9MTS Chassis: 3Y03
Model No: CT-21LS9MTS Version 1.0
3
CONTENT
SERVICE ADJUSTMENT ...................................................................................................................... 4 COMPLETE MACHINE GENERAL ADJUSTMENT........................................................................... 6 FACTORY MENU DISCRIPTION......................................................................................................... 8 CONTROL LOCATION........................................................................................................................ 11 INPUT & OUTPUT TERMINALS........................................................................................................ 12 MECHANICA DISASSEMBLING ....................................................................................................... 13 CABINET PARTS LIST........................................................................................................................ 15 CIRCUIT DIAGRAM ............................................................................................................................ 16
Model No: CT-21LS9MTS Version 1.0
4
SERVICE ADJUSTMENTS
Please notice the following before alignment and equipment
1. 2. 3. 4. Don't short any two soldering points, which should not be shorted and don't touch any components, which should not be touched. Please pull out plug before equipment. For safety reasons, all components equipped or replaced should be identical with BOM. Must be warm up for 30 minutes or more and degauss CRT thoroughly with demagnetizer before alignment.
The data of EEPROM must be stored before the adjustment for main chassis and EEPROM must be corrected by the correct file 3Y03 ROM CORRECT.hex to avoid signal of CH6 weaken. R.bias, G.bias, B.bias, R.drv, G.drv, B.drv should be set to proper values. Sub_bright is set to 63 usually.
Tools and equipments for adjustment
1. 2. 3. 4. 5. 6. 7. Small (-) screwdriver Screwdriver without inductance Pattern generator DC Regulated power supply Digital voltmeter Sweep signal generator 20MHz 2-Channel oscilloscope
Signal condition
ITEMS 1 2 3 4 LOGO CH14 CH3 CH8 CH12 PICTURE CARRIER 471.25MHz 61.25MHz 181.25 MHz 205.25 MHz PATTERN COLOR BAR GRAY SCALE MONOSCOPE CROSS HATCH SYSTEM NTSC/M NTSC/M NTSC/M NTSC/M SOUND MODE MONO 1KHz BTSC 0.3K, 3KHz MONO MUSIC MONO 1KHz
Adjust for main chassis
PIF Adjustment (45.75MHz) 1. 2. 3. Tuner AGC connects to GND. Pattern generator outputs 45.75MHz IF. Signal (70db V) and connects to SAW filter output terminal through a capacitor. Connect digital voltmeter across C227. DC regulated power supply positive terminal output +14V to C617. Adjust L203 coil to obtain 3.6V Digital voltage meter reading.
Note: To cancel this adjustment, L203 can be adjusted before inserted to the chassis with a special equipment.
Model No: CT-21LS9MTS Version 1.0
5
B+ adjustment 1. 2. 3. 4. Disconnect horizontal load. Connect a bulb (100W) AC 250V across C321. Add 220V AC 50HZ to CN601 and switch on power switch. Test the voltage with digital voltage meter between C321 two terminals. Adjust VR601 to obtain +110V 0.5V.
AGC alignment 1. 2. 3. Receive 60dB RF signal. Connect digital voltmeter positive terminal to tuner AGC terminal and negative terminal to GND. Press MENU key, then press Q.VIEW key, MUTE key in turn on telecontroller. TV SET will go to factory mode. Press TIMER key to go to the next factory menu. Go to MENU5 status by this means. Press MENU key to exit factory mode. Select RF.AGC by pressing CH+ and CH- keys. Adjust VOL+ and VOL- keys to obtain 4V digital voltage meter reading.
Model No: CT-21LS9MTS Version 1.0
6
COMPLETE MACHINE GENERAL ADJUSTMENT
Go to factory mode according to 4-2-2 before warm up line Focus adjustment 1. 2. 3. Receive monoscope pattern. Set TV to work in dynamic status. Adjust the focus knob of FBT to get the clearest picture.
Screen voltage adjustment 1. 2. 3. 4. Check the R.bias, G.bias, B.bias, R.drv, G.drv, B.drv and sub_bright. Go to factory mode MENU2 status according to 4-2-2. Usually G.bias should be same as the value of auto white balance equipment. And SUB_BRIGHT is 63. Set Cross_BW 3. Then the picture will be a white +. Cross_BW is in factory menu 3. In menu 5, select SUBB.ADJ and set it to 1. Adjust the screen knob of FBT to get a faintness +. Restore the SUBB.ADJ to 0 and CROSS.BW to 0.
White balance adjustment (Applied in factory) 1. 2. 3. 4. Set TV AV status in custom mode (or other mode need for the adjustment). Receive black white pattern. Insert six-row-wire into CN002. Press adjustment keys and then go to automatic white balance adjustment. PIN DISCRIPTION OF CN002: 1SDA2SCL3GND4GND5SCL6SDA After adjust well, pull out six-row-wire.
White balance adjustment (Applied when servicing) 1. 2. 3. Set TV AV status and receiv GREY SCAL. The one sampling tube of CRT color analyzer (CA-100) covers on GREY signal and the another covers on white signal. Go to factory mode MENU2. Obtain GREY signal X=281 and y=311 by adjusting R-CUT and Bcut. Obtain white signal X=281 and y=311 adjusting R-DRV and B-DRV. Obtain both X=281 and Y=311 by adjusting the two status repeatedly.
Sub_Bright adjustment Receive the grey scale. Get into the menu5 of factory mode. Set SUBB.ADJ to 1. Then adjust the SUB.BRI option to get a scale to be seen a little brightness (only two rows can be seen). Vertical size and Pin Cushion adjustment 1. 2. 3. Receive monoscope pattern. Set TV standard status. Adjust V.size to obtain pictures vertical redisplay ratio mode than 90% in factory mode MENU1. Receive cross hatch pattern. Set TV standard status. Adjust V.LINE and V.SC to obtain picture vertical pin cushion a good status in factory mode MENU1. Receive cross hatch pattern. Set TV standard status. In factory mode MENU1 adjust V.POS to obtain pictures vertical center at the center of CRT screen.
Horizontal Center adjustment and horizontal position of OSD adjustment 1. 2. Receive monoscope PATTERN. Set TV standard status. Adjust H.PHASE in menu 1. to obtain horizontal center at the center of CRT screen. Adjust OSD.HPOS to get right display position.
Model No: CT-21LS9MTS Version 1.0
7
SUB.TINT adjustment Receive the color bar signal of NTSC system. Set the picture mode at normal mode. Adjust the SUB.TINT option in menu 5 at service mode to get the right hue. MTS adjustment Receive the RF CROSS-TALK signals but FM with BTSC. Enter into the factory mode. Set ADJ. FREQ to 1 in 9852 AUTO.ADJ. wait 1 second. Quit factory menu after ADJUSTING change to 0. Color purity adjustment 1. 2. 3. 4. 5. 6. 7. Before color purity adjustment, warm up the TV set over 15 minutes and fully degauss. Receive pure white signal in AV status and set the TV receiver dynamic. Go to factory mode MENU2. After write down the values of R-BIAS and B-BIAS, set the values of R-BIAS and B-BIAS zero. Loosen the clamp screw of the deflection yoke and pull the deflection yoke towards color purity magnetic loop. Adjust color purity magnetic loop to make the green area at the center of CRT screen. Slowly push the deflection yoke toward the front of CRT and set it where a uniform green field is obtained. Tighten the clamp screw of the deflection yoke. Restore the value of R-BIAS, G-BIAS and B-BIAS.
Convergence adjustment 1. 2. 3. 4. 5. Receive a dotted pattern. Set the TV receiver dynamic. Loose the convergence magnet clamper and align red with blue dots at the center of the screen by rotating (R,B) static convergence magnets. Align Red /Blue with green dots at the center of the screen by rotating (RB-G) static convergence magnet. Remove the DY wedges and slightly tilt the deflection yoke horizontally and vertically to obtain the good overall convergence. Fix them after the good overall convergence got. If purity error is found, follow PURITY ADJUSTMENT instructions.
Purity Magnet RB-G Magnet Clamper RB
Static Magnet
Model No: CT-21LS9MTS Version 1.0
8
FACTORY MENU DISCRIPTION
1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 1 2 3 4 5 6 1 1 2 3 4 MENU1 V.SIZE V.POS V.LINE V.SC H.PHASE H.BLK.RL H.FREQ MENU2 V,KILL R.B F.B B.B R.D G.D B.D MENU3 RG.GAM B.GAM R.B. ANG AT.FLESH GRAY.MODE CROSS.BW AFC.GAIN H.BLK.SW MENU4 FILT.SYS CORING OSD.CONT OSD.HPOS BLK.STR.D BRIABL.T MENU5 RF.AGC OPTION 2AV.CH SRH.SPEED TDA9852 TUN.AS.V VALUE 101 32 16 0 8 4 22 VALUE 0 138 182 148 67 8 45 VALUE 1 3 1 0 0 0 0 0 VALUE 1 1 30 0 0 VALUE 31 VALUE 3 0 1 1 DISCRIPTION Align vertical amplitude Align vertical DC bias Align vertical linearity Align vertical S-correction Align sync to flyback phase H-blanking control (width /phase Align ES Sample horizontal frequency DISCRIPTION Disable vertical output Align Red out DC level Align Green out DC level Align Blue out DC level Align Red out AC level Align Green out AC level Align Blue out AC level DISCRIPTION Disable R/G gamma correction (0/ON; 1/OFF) Select and Disable B gamma correction (0~2 /ON; 3/ OFF) Adjust the demodulation angle of R-Y and B-Y Select Test mode (0 /White; 1/Gray) Service Test mode (0 /TV; 1/Black; 2/ White; 3/ Crosshatch) Select Horiz. 1st loop gain & H-sync gate on /off (0/ auto; 1/ enforce) H BLK R&L selection (0/ right side blanking can be adjusted; 1/ left) DISCRIPTION Select Y/C filter mode (0,2/3.58 unsymm.; 1,3/3.58 sym.; 4~7/ no filt) Enable luminance coring (0/ OFF; 1/ ON) Align the horizontal position of OSD Disable black stretch Align brightness ABL threshold DISCRIPTION Align RF AGC threshold DISCRIPTION Select AV numbers (0/ No AV; 1/1 AV; 2,3/2AV) Select auto search speed (0/ fastest, 7/ lowest) Disable 9852 (0/disable; 1/able) Select the Tuner address (0/ Tuner pin3 to ground; 1/pin3 not used)
Model No: CT-21LS9MTS Version 1.0
9
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
9852 AUTO. ADJ ADJ.FREQ ADJUSTING FM.LVL 76075.VOL L3-L0 TC2-TC0 A14-A10 A24-A20 TDA1 VOL.RIGHT VOL.LEFT GMU AVLON LOFF CCD SC2-SC0 SAP.ID TDA2 STERO.ID TZCM LMU EF2-EF0 L3-L0 A14-A10 A24-A20 STS TDA ADJ AT1-AT2 TC2-TC0 WR.ERR RD ERR MANU ADJ STEREO SAP
VALUE 0 0 16 0 0 0 0 0 VALUE 125 125 0 0 0 0 2 0 VALUE 1 0 0 0 0 0 0 0 VALUE 0 0 0 0 0 0 0 0
DISCRIPTION Disable auto adjusting (0/disable; 1/get into auto adjust mode)
Input level adjust Timing current alignment data Stereo alignment data for wideband expander Stereo alignment data for spectral expander DISCRIPTION Volume control right Volume control left Mute control for all output (general mute) Auto volume control (with 0.1Vrms 1.1Vrms input to get constant output 0.2Vrms) Switch loudness on/off Selection between line in and line out DISCRIPTION Zero cross mode in volume operation Mute control for line out Selection between mono, stereo linear, spatial stereo and pseudo mode Input level adjust Stereo alignment data for wideband expander Stereo alignment data for spectral expander Stereo level switch DISCRIPTION Stereo adjust on/off Attack time at AVL Timing current alignment data
Mode selection for line out Mode selection for line out
Model No: CT-21LS9MTS Version 1.0
10
White balance address
Data Name bright contrast color Sub-bright R.B G.B B.B R.D G.D B.D White Balance address E2PROM Address 12H 11H 10H 24H 1EH 1FH 20H 21H 22H 23H LA76814 ADDRESS #1011 1010B #0001 0100B #0001 0101B #1011 1010B #0001 0011B #0000 1101B #0000 1110B #0000 1111B #0001 0000B #0001 0000B #0001 0010B
Model No: CT-21LS9MTS Version 1.0
11
CONTROL LOCATION
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Remote sensor Power indicator Main switch Speakers Program down & up button Volume down & up button Menu button AV /TV button Front AV In (Option) Audio /Video In/out Jack AC Power cord Terminal antenna (75 Ohm)
(STEREO)
4
9
5
6
7
8
2
1
3
4
(MONO)
11
10
12
Model No: CT-21LS9MTS Version 1.0
12
INPUT AND OUTPUT TERMINAL
Video and audio input/output terminals 1. 2. Video /audio input for playback for VCR Video /audio output for TV monitor output.
* Please keep AC cord unplugged when connecting TV system
(STEREO)
AV-OUT AV-IN
L
L
VIDEO
AUDIO R
VIDEO R
AUDIO
(MONO)
OUT VIDEO AUDIO VIDEO IN AUDIO
Note: This is a mono CTV even though there are R & L audio input & output jack. These audio R/L input terminals are parallel connected inside and make mixed monaural sound output. There are some monaural audio output come from R/L output terminals.
Model No: CT-21LS9MTS Version 1.0
13
MECHANICAL DISASSEMBLIES
Cabinet back removal 1. Refer to figure 1, remove 9 screws. 2. Pull off cabinet back and remove.
Chassis removal 1. Remove cabinet back. 2. Discharge the picture tube anode (2nd anode lead) to the dag coating (picture tube grounding lead). 3. Disconnect degaussing coil socket (KE), picture tube socket, deflection yoke connector (KDY), speaker connectors (KL) and (KR) and 2nd anode lead. 4. Remove chassis completely by sliding it straight back.
Model No: CT-21LS9MTS Version 1.0
14
Picture tube removal Caution: Do not disturb the deflection yoke or magnet assembly on the picture tube neck. Care must be taken to keep these assemblies intact unless picture tube is being replaced. Discharge the picture tube to the coating before handling the Tube. 1. Remove chassis, referring to chassis removal instructions. 2. Place cabinet front face down on the soft surface. 3. Remove the screw on each corner of the picture tube and GENTRLY lift the picture tube out of the cabinet. 4. Install a replacement picture tube in reverse order. Properly install the degaussing coil and picture tube grounding lead on the picture tube. Note: If the picture tube is being replaced, mount the degaussing coil on the picture tube. See following.
DEGAUSSING COIL
DEGAUSSING COIL HOLDER
PICTURE TUBE GROUNDING LEAD
DEGAUSSING COIL SOCKET
To CRT Unit ground
Model No: CT-21LS9MTS Version 1.0
15
CABINET PARTS LIST
1
6
2
7
4
3
5
1
8
10 11
9
12
Key No 1 2 3 4 5 6 7 8 9 10 11 12
Part No. SK140121NZM001(2) SK100121NZM002 SK100721NZM002 SK100721NZM002 SK190100821210 SK100425TM0002 SK100821NZM001 SK060121NZM001 SK100221NX0001 SK1015HS080002 SK1016HS080003 SK1014HS080012
Description Speaker grille (L&R)- silver blue #Sb001 (PVC) Front cabinet- metal silver grey #MSG001 W/AV (O-RL-V) Front lens (remote control window) Front lens (LED window) Power knob spring DIA 0.6 spring wire Side AV jack bracket dark grey #DG001(ABS) Control key knob- electro plating silver (ABS) Back label ENG Back cabinet dark grey #DG001 Bottom cabinet- normal grey #NG001 (ABS) Battery door normal grey #NG001 (ABS) Top cabinet normal grey #NG001 (ABS)
Model No: CT-21LS9MTS Version 1.0
16
CIRCUIT DIAGRAM
AR IN
RFAGC ADD SDA VCC VCC NC SCL NC IF1 IF2 33V
R114 220
9V(2)
R407 2.2K R409 2.2K
AR-OUT
C419 2.2U/50V
9V(2)
2.2U/50V C426 0.0082UF
TUNER
R103 120K
10 11
R108 5.6K R105 0
C114 0.01U
R109 270
L102 0.82UH R410 20K C427 0.015UF
X401 503F58
C418 0.22U/M
R408 12/1W C415 220U/16V C442 ZD401 8V2
GND EXT INT
IC402 LA4285
GND VCC OUT VOL SW NF 6
4.7U/50V
4.7U/50V
2.2U/50V
10U/16V
0.015UF
0.015UF
0.47U/M
C107 0.01U
1
2
3
4
5
6
7
8
9
C104 4.7U/50V
Q101 2SC2717 C111 0.01U C108 1U/50V R111 1K R110 47
C109 0.01U
C416 100U/16V
C439
C445 5 100U/25V
C421
C420
100
100
10
C424
C423
C425
C422
0.022U
C417
R107 33K
1
2
3
4
6
7
8
9
AUDIO R
C450
C441 100P
0.01U
SCL
R406 100
C444 220/25V
SPEAKER
R101
R102
AUDIO L
EOR LDR LIR LOR Vcap AVR Cps1 Cps2 CER SOR Cmo Vcc OUTR COMP Cadj SCL VIR Css Cph Cp2 Cp1
R412 4.7K C437 10UF/50V
R441 1K C446 1U/50V
42
24
40
28
27
41
39
34
33
31
30
36
38
37
35
32
29
26
25
23
22
8R 3W
L101 100UH
C110 330U/16V
9V(2) TDA9852 IC404
GND CNR VEO Cdec SDA VEI Cm CS
5V(2)
33V
OUTL CTW CAV AVL EOL LDL LOL SOL CTS Vref VIL CW LIL
VOL
CPU PIN5 R405 100 C440 100P
R468 15K
Q464 2SC1815
R466 4.7K D401
GND EXT INT
IC403 LA4285
GND VCC OUT VOL SW NF 6
1
2
C404 C402 3 0.0082UF 2.2U/50V 4
4.7U/50V 5
100U/16V 6
47U/16V 7
8
9
10
10U/16V 11
10U/16V 12
1U/50V 13
1U/50V 14
R403 15 8.2K 16
10U/16V 17
0.1U/C 18
4.7U/50V19
20
21
M001
3 2 1
5V(1)
CR1 0.022U RR1 1 RD11 1K LED Q003 2SA1015
R002 4K7 R001 10K
AUDIO L
SDA
R467 1.8K
4148
1
2
3
4
5
6
7
8
9
C450 0.022U
C406
C403
C405
C447 220/25V
C413
C407
C408
C409
5V(1)
WRITE IDsecam V_L V_H UHF IDscart VOL COB.F POWER TUNE GND XTF1 XTF2 VDD KEY AFT PGCin OPT RESET FIL OPTselect Vsyn Hsyn BLK B G R
C401 0.1U/M
C410
R404 150
C412
C414
R402
C453 10U/50V
R050 9K1
AL-OUT
PMA64xxM
R013 4.7K 1
2 3
42 41 40 39 38 37
5V(1)
R022 22K
AL IN
R401 2.2K
20K
C411 0.047UF
C448 100U/25V R413 4.7K
R442 100 C451 1U/50V C452 1000UF/25V
10
SPEAKER
8R 3W
AUDIO R
C438 10UF/50V
FM
AV1/2 SW AV/TV SW
4.7K 4.7K 4.7K 4.7K
20V
4 5 6
VOL POWER
PROGPROG+ VOLVOL+ MENU SLEEP SEARCH AV/TV R021 33K R067 24K C009 330U/16V
IC001 LA8633XX
MUTE AV2 AV1
C243 0.047U/M
1 2
7
SW001
C004 220P 8 C005 100P C007 15P C008 15P X001
9 10 11
S_VHS M_TRAP REMOTE SD BALANCE SAFTY IICCLK IICDATA CLK DATA
36 35
IC201 LA76814
A OUT FM OUT PIF AGC RF AGC IF IN IF IN IF GND IF VCC FM FIL AFT OUT BUS DATA BUS CLOCK ABL R IN G IN B IN FB IN VCC R OUT G OUT B OUT SYNC V OUT RAMP ALC H VCC H AFC FIL H OUT SIF IN SIF FIL SIF OUT EXT.A IN APC FIL VCO VCO FLL FIL TV OUT BLACK S.F INT.V IN VCC V/C/D EXT.V IN G V/C/B V OUT ACC FIL XRAL FSC OUT APC1 FIL KILLER FIL XRAY H GND OSD CON NC NC VCO IREF FBP IN 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28
C245 39PF
C242 0.001U
W1 W2 W3
V501 CRT
3 HEATER 2 GND 1 +180V
R530 150K/1W
R049
R048
R046
SW008 RD2 56K
SW007 SW006 SW005 RD3 22K RD4 11K RD5 6.8K
C001 0.01U
34 33 32 31 30 29 28 27 26 25 24 23 22
R047
SW004 SW003 SW002 RD6 4.7K RD7 4.3K RD8 3K
R243 1K C241 39PF L203 45.75M C209 0.47U R225 1K C230 1U/50V R229 1K L241 15UH
C246 0.01U R233 390 C224 0.001U C247 0.47U/50V
C010 0.01U
RD21 15K
C203 0.022U SAW101 C205 100U/16V IC002 24C04 C206 0.01U C016 0.1U 45B R008 100K R007 100K R200 470 R209 470 C237 100P C239 0.22U
3 4 5 6 7 8
RD9 2K
CN301B
FROM CN301
32.768K
5V(1)
AFT
Q006 2SA1015
12 13 14
SW
RD21 16K CN001 PIN3 R037 R036 10K 10K
15 16 17
R051 100 R052 100
5V(2)
AFT 5V(1)
EHT
R514 15K/2W Q503 2SC2482 R513 15K/2W Q502 R511 2K7 1/2W R510 2K7 1/2W R512 15K/2W R509 2K7 1/2W Q501 R515 390 D506 R507 1N4148 2K2 C501 150P 2SC2482 C504 1000P/2KV
5V(1)
R032 1.5K ZD003 3.6V R033 8.2K R034 4.7K C011 0.01U R038 1M
5V(1)
R039
C221 R201 9
2.2U/50V 20K 10
100 C013 0.022U
C012 2.2U/50V R043 10K R065 4.7K
C014 4.7U/50V
18 19 20 21
D010 D009 D008 D007
1N4148 1N4148 1N4148 1N4148 R031 R030 R029 330 330 330
5V(1) 5V(2)
Q221
BLK OSD-B OSD-G OSD-R
C236 100P
11 12 13 14
C231 0.1U
5V(2)
AV V IN
R506 390 C503 150P R503 150
5K1 R712
5K1 R711
5K1 R710
R709
Q007 2SC1815
AV V OUT IC201 PIN40
D201 1N4148
1K
OSD-R OSD-G OSD-B BLK
C240 10U/25V
C232 1U/50V
15 16 17
AV V OUT
C235 15P C233 10U/16V 3.579545M X201
D505 R508 1N4148 2K2
R505 390 C502 150P
2SC2482
H-SYNC
2SC1815 R226 2.2K
J147 1K
Q008 2SC1815
CN201
9V(2)
9V(2)
R208 47 C207 47U/16V
C222 0.01U R255 100 R254 100 R256 100
18 19 20 21 22
C238 C227 5n6 0.01U C228 1000P R214 1K R213 1K5 R221 10K R222 22K D221 IN4148
D507 R504 1N4148 2K2
R719
1 BO 2 GO 3 RO 4 GND
R502 150 C507 C505 10u/25V 0.01U R523 10K Q508 2SC1815 R524 270 C506 470u/16V D504 BA158 R501 150
1K
V-SYNC
R240 100K
V-IN
AV1/2 SW
23
AR-OUT
AV/TV SW
AR OUT
AL-OUT
VOUT
AL-OUT
AR-IN
AL-IN
IC201 PIN42
AV VOUT
Q402 2SC1815 C435 10U/50V R446 10K
5V(1)
R463 10K R462 10K
5V(2) 9V(1) R211
120 C214 0.01U
C219 0.33U
C217 0.1U
5V(2)
9V(2)
24 25
CN201B
FROM CN201
5 +9V(2)
9V(2)
Q401
R210 3K3 C212 470U/16V C216 C215 1U/50V 0.022U
26 27
C436 10U/50V 2SC1815 R445 10K
9V(2)
R440 100 R437 10K R465 10K R464 10K Q462 2SC1815 Q461 2SC1815
R241 10K
R212 4.7K
CRT PCB
ABL
V OUT AR OUT AL OUT
FRONT AV (OPTION)
C432 47U/16V
R438 10K R436 10K 10K
V-SYNC
POWER
V-IN
C431 47U/16V
R439
IC301 LA7840
7 6 5 4 3
!
V IN 1 AR IN 1 AL IN 1
9V(2)
9V(2)
2 1 2 1
15
14
13
12
16
11
10 CONB
ACOM
CONA
AI2
AI1
AI0
VDD
AI3
9
IC401 HEF4052
7
6
5
4
INHBIT
BCOM
GND
VEE
BI0
BI2
BI3
BI1
C325 100/16V D301 BA158
3
C315 1U/50V
R301 47K
R303 5.1K
R330 1.5K
C434 47U/16V
C328 100U/16V
R327 2.2 2W C324 0.47U R318 100K C323 1U/50V C327 0.1U R326 270 2W
R237 560K
R235 5K1
1
2
3
4
5
6
7
8
R431 10K R434 10K R433 10K R435 100
9V(2)
R340 5.1K
C304 220U/50V
CN302
! D306 BA157 R309 1K 1W C326 2200U/25V R311 180 1W C317 680P/500V R316 3.9/2W D304 BA158 C318 680P/500V C312 1U/250V
C433 47U/16V R432 10K
R319 15K
C316 0.033U/M C615 680P/500V R4F1 75 R618 0.68/2W
1 9
9V(2)
C321 100U/160V R625 IC004 33V
R329 10K
R331 1K5/1W !
R324 3.9K
D607 BYW36 C641 680P/500V
C616 100U/160V C640 1000U/25V
15K 2W
B+ 33V
T603
FBT
!
R315 22K 1W R317 0.68 2W
C311 0.47U 250V
L301 44UH
R320 1.2 2W
CN301
4 1
!
25V
C642 0.01U
C607
1N5397 X4
!
220U/200V
20V
IC601
L7805
1
L601 R605 2M2 C608 0.001U/2KV Q601 2SC2482 R613 47/0.5W R612 10K ZD602 15V D610 BA158
T601
3
!
7
IC302 LA7809
2 3
3 2 1
!
T601
C601A .0047 C601D .0047 R602 SCK473
D601A
D601C
R619 2.2 /2W
D640 BA158
R621 0
! !
D601D D601B
R608 2M2
C605 680P/500V
4 5 10 11 12
C623 4.7UF/160V R609
C620 10U/50V
5V(1)
C630 0.01U
9V(2)
C320 220U/16V
2
C301 47U/50V D310 BA158
R607 39K/3W C602 .22/250V ! R601 PTC 10 !
4 STR-G6653
1
D609 IN4148 L602 R610 680 R603 0.22/1W C614 1000P D605 4148 R604 0.22/1W
BA158
D611
47
D608 BA158 C619 680P/500V
C617 C621 2200U/25V 0.01U/50V R629 10K
Q611 2SA966
R626 0 R628 22
IC203
L7805
CONTROL BLOCK
2 5 OCP/FB 3
C610 100UF/35V R611 2K2
5V(2) 9V(1)
B+
R620 150K 1/2W
7 3 8
C313 .0047/2KV C314 .0076/2KV
FOCUS
SCREEN
D602 IN4148 C609 0.0033/100V
6
R653 BA158 R642 1.2K R645 1K ZD601 3V9
D604 IN4148
C612 0.1U
F601 T3.15A/AC250
! R622 2M7 ! !
IC602
IC603
R643 1K C611 0.1U/63V
!
C618 470U/25V
R632 10K 78L09 Q609
R306 5.1K 5W C322 R308 2.7K 1/2W 560P/500V T301 R310 ! 22 1/2W
10 6
R207 1K C308 0.056U/M
R236 680
R630 10K R307 100
5V(2)
Q610 2SC1815 R646 3K9 VR601 2KB(H)
R644
Q301 2SC2482
Q302 2SD2499 ! C310 0.056U/250V
R322 0.68 2W C302
D305 BA158 C303 10U/250V
!
!
C613 0.0022U/250V
Q602 2SC1815 !
680P/500V
L
N
CN601
! !
CN602
L601 DEG.COIL
100K/2W
C309 0.0022U/1KV
AC110V
Model No: CT-21LS9MTS Version 1.0