Table of Contents
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SERVICE MANUAL Colour Television
Specifications
Power Source
. . . . . . . .AC127-240V, 50/60Hz.
Colour System . . . . . . . .PAL, NTSC4.43, NTSC, PAL 60Hz
Television System . . . . .B/G
Channel Coverage . . . . .VHF: E2-E12, R1-R12, K1-K9, J1-J12, A2-A13
UHF: 21-69, A14-A69, J13-J62
CATV: S1-S41, X, Y, Z, Z+1, Z+2
Video IF . . . . . . . . . . . . . .38.0 MHz
Aerial Input Impedance . 75Ω
Ext. Terminals
Video inputs: Phono jack 2 (1.0Vp-p, impedance 75Ω)
DVD Input: Component Video Jack-Y 1 (1.0Vp-p, impedance 75Ω)
Component Video Jack CB/CR 1 (0.7Vp-p, impedance 75Ω)
Audio inputs: Phono jack (L/R) 2 (436mVrms, impedance more than 40KΩ)
Video monitor output: Phono jack 1 (1.0Vp-p, 75Ω)
Audio monitor outputs: Phono jack(L/R) 1(436mVrms, Impedance less than
600Ω)
Speaker . . . . . . . . . . . . . . 5 cm 9 cm 2 pcs.
Sound Output (RMS) . . . 5W + 5W
Dimensions . . . . . . . . . . . 580 (W) 465 (H) 326 (D)mm
Weight . . . . . . . . . . . . . . . approx. 19.7 Kg
Specifications subject to change without notice
BE4B
-
+
CH
FILE NO.
Model No. CT21KS2
(Thailand)
Service Ref. No. CT21KS2-00
TV/AV
TIMER
x
1
2
3
4
5
6
7
8
9
-/--
P
P
0
SWAP
CH
CH SCAN
MENU
.
A B
CH
PICTURE
SOUND S. SYS
BASS
SURROUND
JXPSC
Product Code: 113016101
Original Version
Chassis Series: FC8-A
Give complete "SERVICE REF. NO." for parts
order or servicing. It is shown on the rating plate
at the cabinet back of the unit.
This T.V. receiver will not work properly in
foreign countries where the television
transmission system and power source dif-
fer from the design specifications. Refer to
the specification table.
REFERENCE NO.
SM
3010349
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Table of Contents
Related Manuals for Sanyo CT21KS2
Summary of Contents for Sanyo CT21KS2
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Page 1: Specifications
FILE NO. SERVICE MANUAL Colour Television Model No. CT21KS2 (Thailand) Service Ref. No. CT21KS2-00 TV/AV TIMER -/-- SWAP CH SCAN MENU PICTURE SOUND S. SYS BASS SURROUND JXPSC Specifications Product Code: 113016101 Power Source ..AC127-240V, 50/60Hz. -
Page 2: Table Of Contents
Contents Safety Notice ..........2 Chassis Block Diagram . -
Page 3: Chassis Block Diagram
Chassis Block Diagrams... - Page 4 Chassis Block Diagrams System Control KEY SWITCH TUNER IC 1201 AUDIO SWITCH CONTROL SW-1 SOUND MUTE IC 001 SW-2 (MUTE=H) AUDIO AMP. A-SW MUTE ON-OFF (POWER ON=High) RC SIGNAL IN IC201 (ACTIVE=HIGH) RC. PRE AMP. QXXAAJQ0899-- QXXAAJQ0897-- QXXAVD034---M QXXAVD032---M OSD R-OUT (Active=High) OSD G-OUT (Active=High)
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Page 5: Ic Block Diagrams
IC Block Diagrams IC201 < CPU/IF/Video/Chroma/Def.> QXXAVD034---M / QXXAAJQ0899--... -
Page 6: Ic Block Diagrams
IC Block Diagrams IC001 < Audio AMP.> LA42205-E IC501 < Vertical Output > LA78141-E Standby Thermal Protection Input amplifier + OUT1 Output amplifier 30kΩ - OUT1 Pump MUTE Vcc / ground shorting protection circuit Load shorting protection circuit Thermal protection circuit + OUT2 Output amplifier 30kΩ... -
Page 7: Service Adjustment With Replacing Memory Ic(Ic801)
Service Adjustments with Replacing Memory IC(IC801) Note: The CPU (IC201) and memory IC (IC801) store the service adjustments data and controls data for each circuit.When the Memory IC(IC801) is replaced, some of the service adjustments should be readjusted to obtain the best performance. The necessary service adjustments are carried out by using the RC handset. Please set up the TV set with following steps [1] to [2]. -
Page 8: Entering To Service Mode
Service Adjustments with Replacing Memory IC(IC801) [Entering to Service Mode] Press and hold the MENU button on the TV set and press the numeric 1 button on the Remote Control. Following setting items appears on the screen. Display for [Align RF AGC Threshold] RF AGC adjustment Version ®... - Page 9 Service Adjustments with Replacing Memory IC(IC801) Following table shows the initial values which have been stored in the CPU ROM, and items for the service adjustments. Service mode adjustments table in CPU ROM Item Range Data Description T-DIS 0 ~ 1 Disable the Test SW &...
- Page 10 Service Adjustments with Replacing Memory IC(IC801) Following table shows the initial values which have been stored in the CPU ROM, and items for the service adjustments. Service mode adjustments table in CPU ROM Item Range Data Description DOSD 0 ~ 1 Select Digital OSD mode/Analogue OSD mode EXCNT 0 ~ F...
- Page 11 Service Adjustments with Replacing Memory IC(IC801) Following table shows the initial values which have been stored in the CPU ROM, and items for the service adjustments. Service mode adjustments table in CPU ROM Item Range Data Description EQUON 0 ~ 1 Enable EQU circuit IFAGC 0 ~ 1...
- Page 12 Service Adjustments with Replacing Memory IC(IC801) Following table shows the initial values which have been stored in the CPU ROM, and items for the service adjustments. Service mode adjustments table in CPU ROM Item Range Data Description Y APF 0 ~ 1 Y APF YDLAD 0 ~ 7...
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Page 13: Service Adjustment With Replacing Memory Ic(Ic801)
Service Adjustments with Replacing Memory IC(IC801) Following table shows the initial values which have been stored in the CPU ROM, and items for the service adjustments. Service mode adjustments table in CPU ROM Item Range Data Description RFBRI 0 ~ FF Bias Brightness(RF) RFCON 0 ~ FF... -
Page 14: Service Mode Adjustments
Service Mode Adjustments Items 32 - 39 GREY SCALE (1) Receive a monochrome circular pattern. (2) Set the brightness and colour to normal, contrast to maximum. (3) Enter to the service mode. (4) Select No. , and No. and set each data to 0 by pressing 32 RBIAS (R), 33 GBIAS (G), 34 BBIAS (B) 39 WHITE BALANCE the VOLUME + or - key. -
Page 15: Service Mode Adjustments
Service Mode Adjustments Following adjustments should be carried out when the memory IC is replaced. How to enter the service mode and adjust values, please refer to “ Entering to Service mode” on page 8. Item 91 [ALIGN RF AGC THRESHOLD] RF AGC Item 17 [ALIGN VERTICAL LINEARITY] V LIN NOTE: Do not attempt this adjustment with weak signal. -
Page 16: Service Adjustments
Service Adjustments Following adjustments are not required to readjust when replacing the memory IC. HIGH VOLTAGE CHECK B-VOLTAGE SUPPLY CHECKING (1) Connect DC meter to TP-B and the ground. Note: +B (+115V) Voltage Check and Grayscale Adjustment (2) Tune the receiver to an active channel and synchro- must be completed before attempting High Voltage Check. -
Page 17: Special Function
Special Function The following special functions can be set up on this TV How to set the special function: set. Note: When making the VOLUME LOCK setting, set the (1) Volume Lock setting desired maximum sound volume by pressing the VOLUME + or - button before entering Special Function setting mode. -
Page 18: Purity And Convergence Adjustment
Purity and Convergence Adjustment CAUTION: The Convergence and Purity adjustments have been made at the factory. Readjustment should be made only after picture tube or deflection yoke replacement, following the steps below: PURITY ADJUSTMENT 8. Tighten the mounting screw of the Deflection Yoke. Adjust 1. -
Page 19: Mechanical Disassembly
Mechanical Disassembly CABINET BACK REMOVAL 1. Refer to Figure 1, remove 9 screws. 2. Pull off cabinet back and remove. INPUT MONITOR AV1/DVD AUDIO AUDIO ANT. 75 VIDEO VIDEO Figure 1. Cabinet Back Removal Protection Circuit This TV set has a built-in power supply protection circuit. It is provided to protect the TV set in case of a power supply circuit malfunctions. -
Page 20: Cabinet Parts List
610 339 3513 DEC IND-BE4A 610 339 2844 BUTTON UNITED BE4A 610 341 2368 ASSY,CABINET FRONT-BE4A 610 339 2769 CABINET FRONT-BE4A 610 339 2813 DOOR-BE4A 645 069 2185 BADGE,SANYO*43.5X10L43.5 610 339 2769 CABINET BACK-BE4A 652 002 0634 REMOCON,JXPSG 1AA6P1P5576-A INSTRUCTION MANUAL-BE4B-A -20-... -
Page 21: Chassis Electrical Parts List
Chassis Electrical Parts List BE4B Product safety should be considered when a component replacement is made in any area of a receiver. Components indicated by a mark in this parts list and the circuit diagram show components whose value have special significance to product safety. - Page 22 BE4B Ref. No. Part No. Description Ref. No. Part No. Description 4050144618 TR 2SC2412K T146 S 4050144519 TR 2SC2412K T146 R 4050158724 TR 2SC2812-L6-TB 4050144618 TR 2SC2412K T146 S 4050158922 TR 2SC2812-L7-TB 4050158724 TR 2SC2812-L6-TB 4051631612 TR 2SC2812N-L6-TB0 4050158922 TR 2SC2812-L7-TB 4051739813 TR 2SC3928A1R 4051631612...
- Page 23 BE4B Ref. No. Part No. Description Ref. No. Part No. Description IC501 4096697908 IC LA78141-E 4033053517 CERAMIC 0.1U Z IC601 4105643100 IC STR-W6754(LF2003) C1008 4041044900 CERAMIC 0.1U K IC801 4104958007 IC AT24C16A-10PU-2.7 4040912606 CERAMIC 0.1U K 4106374607 IC LE24C162-E 4033670417 CERAMIC 0.1U K 4094594506...
- Page 24 BE4B Ref. No. Part No. Description Ref. No. Part No. Description C202 4041046102 CERAMIC 3300P K 4031554214 CERAMIC 15P J 4040913900 CERAMIC 3300P K C225 4032750318 POLYESTER 0.47U J 4031552210 CERAMIC 3300P K 4032560808 MT-COMPO 0.47U J C203 4041113705 CERAMIC 15P J C226 4041046706...
- Page 25 BE4B Ref. No. Part No. Description Ref. No. Part No. Description C433 4041135301 CERAMIC 1000P K 500V 4032889107 POLYESTER 0.22U K 100V 4031149519 CERAMIC 1000P K 500V 4033407112 MT-COMPO 0.22U J 100V C434 4041085705 ELECT 330U M C601 4040881704 MT-POLYEST 0.22U K 250V 4041075201...
- Page 26 BE4B Ref. No. Part No. Description Ref. No. Part No. Description C635 4041036301 CERAMIC 0.33U K R1021 4011505816 MT-GLAZE 100K JA 1/10W 4032794312 CERAMIC 0.33U K R1022 4012567318 MT-GLAZE 6.8K JA 1/10W 4034015712 CERAMIC 0.33U K R1024 4012565918 MT-GLAZE 2.7K JA 1/10W C636 4041102600 ELECT...
- Page 27 BE4B Ref. No. Part No. Description Ref. No. Part No. Description R240 4010531301 MT-FILM 22K FA 1/6W R602 4020980106 WIRE WOUND 1.8 KA R241 4010257409 CARBON 220 JA 1/6W R603 4010642601 OXIDE-MT 0.56 JA R242 4012556817 MT-GLAZE 30K JA 1/10W R604 4010642601 OXIDE-MT...
- Page 28 BE4B Ref. No. Part No. Description Ref. No. Part No. Description R840 4012564119 MT-GLAZE 56 JA 1/10W D1008 4070996122 ZENER DIODE MTZJ10B R886 4011623015 MT-GLAZE 22K JA 1/10W 4080472207 ZENER DIODE MTZJ10B-52 D101 4070996122 ZENER DIODE MTZJ10B VARIABLE RESISTOR 4080472207 ZENER DIODE MTZJ10B-52 VR631 6450065514...
- Page 29 BE4B Ref. No. Part No. Description Ref. No. Part No. Description D469 4070077405 DIODE EU1 4071630411 DIODE 1SS352-(TPH3) 4080457709 DIODE EU1 4071490817 DIODE 1SS355-TE-17 D476 4070639702 ZENER DIODE MTZJ9.1C D801 4072505817 ZENER DIODE KDZ10V 4080480301 ZENER DIODE MTZJ9.1C-52 4072065618 ZENER DIODE UDZS-TE-1710B D485 4070077405 DIODE EU1...
- Page 30 BE4B Ref. No. Part No. Description Ref. No. Part No. Description 4050416705 TR 2SC2621-E-RA Q703 4050416507 TR 2SC2621-D-RA 4050416705 TR 2SC2621-E-RA Q705 4050416507 TR 2SC2621-D-RA 4050416705 TR 2SC2621-E-RA Q721 4052203115 TR ISA1235AC1E 4052203016 TR ISA1235AC1F 4051648016 TR KTA1504S-GR-RTK 4051345925 TR 2SA1037AK-T146-R 4051472215 TR 2SA1037AK-S-T146 4051739615...
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Page 31: Component Locations
Component Locations Main Board (Parts Side) CH UP CH DOWN VOL UP VOL DOWN MENU AV/TV D1901 C1902 A1901 SW1904 SW1903 SW1901 SW1902 SW1906 SW1905 FC8A K1101 CHASSIS PS601 R602-H2 R602A-H1 C618 C618A KE-1 KE-2 C007 C006 C645 JP684 R646 D632 R646B-H1 R646A... - Page 32 Component Locations Main Board (Solder Side) -32-...
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Page 33: Component Locations
Component Locations CRT Board (Parts Side) CRT Board (Solder Side) C721 Q721 Q705 Q701 R G B Q703 Q705 R717 Q701 R712 R717 C708 C708A R712 Q703 C708A C708 R716 R716 R715 K701L R715 K701L CAUTION !!!! HIGH VOLTAGE AT FOCUS PIN A30C5 R732 R732... -
Page 34: Voltages And Waveforms Charts
Voltages and Waveforms Charts Note: Voltages and waveforms were measured with colour bar signal and controls adjusted for normal picture. Main Board Q002 Q1000 Q1001 Q1002 Q111 Q200 Q202 Q203 Q204 Q206 Q431 Q205 E 7.8V E 3.9V E 1.5V E 1.5V E 0.9V E 0.5V... -
Page 35: Voltages And Waveforms Charts
Voltages and Waveforms Charts CRT Board Q701 Q703 Q705 Q721 E 2.3V E 2.3V E 2.3V E 0.9V C 7.6V B 2.1V Q701-C Q701-B Q705-C Q705-B Q703-C Q703-B <B-out> <G-out> <G drive> <R-out> <R drive> <B drive> 5Vp-p 5.1Vp-p 134Vp-p 122Vp-p 4.7Vp-p 128Vp-p... - Page 36 SANYO Electric Co., Ltd. June /’08 Printed In Thailand...
- Page 37 SERIES scope and a low capacity probe. CAPACITOR N: Metalized carbon Kind (M.carbon) 8. This circuit diagram covers a basic or representative chassis only. S: Oxied metalized CT21KS2-00 W: Wire wounding Rated wattage (1/2W) There POSISTER SERVICE C: Solid RESISTOR may be some components or partial circuit differences between the REF.