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SERVICE MANUAL Colour Television
VIDEO
Specifications
Power Source . . . . . . . . . AC110-240V, 50Hz/60Hz.
Colour System . . . . . . . . PAL/SECAM/NTSC4.43/NTSC/PAL-60Hz
Television System . . . . . . B/G, D/K, K', I, M/M
Channel Coverage . . . . . VHF: E2-E12, R1-R12, K1-K9, A2-A13, J1-J12
UHF: 21-69, A14-A69, J13-J62
CATV: S1-S41, X, Y, Z, Z+1, Z+2
Video IF . . . . . . . . . . . . . . 38.0MHz
Aerial Input Impedance . . 75Ω
Ext. Terminals
Video inputs: Phono jack ✕ 2 (1Vp - p, 75Ω)
Audio inputs: Phono jack (L/R) ✕ 2(436mVrms, more than 40KΩ)
Video monitor outputs: Phono jack ✕ 1(1Vp - p, 75Ω)
Audio monitor outputs: Phono jack ✕ 1(436mVrms, less than 600Ω)
Sound Output (RMS) . . . . 5W + 5W
. . . . . . . . . 625 (W) ✕ 460.5 (H) ✕ 483.8 (D)mm
Dimensions
Weight . . . . . . . . . . . . . . . approx. 21.2 Kg
Specifications subject to change without notice.
C4VK/C4VKA
TV/AV MENU
P
L-AUD IO-R
FILE NO.
Model No. CM21KX8S
CM21KX8SA
Service Ref. No. CM21KX8S-00
TIMER
TV/AV
1
2
3
4
5
6
7
8
9
0
-/--
BASS
A B
SURROUND
PL
P
P
CH SCAN
PM
SWAP
MENU
PIC MODE
JXMYA
Product Code:
1 113 582 09 (CM21KX8S)
1 113 582 29 (CM21KX8SA)
Original Version
Chassis Series: AC5-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.
(Middle East)
CM21KX8SA-00
SM
5110355
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Table of Contents
Related Manuals for Sanyo CM21KX8S
Summary of Contents for Sanyo CM21KX8S
- Page 1 Specifications Product Code: Power Source ..AC110-240V, 50Hz/60Hz. 1 113 582 09 (CM21KX8S) Colour System ..PAL/SECAM/NTSC4.43/NTSC/PAL-60Hz 1 113 582 29 (CM21KX8SA) Television System ..B/G, D/K, K’, I, M/M Channel Coverage .
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Page 2: Table Of Contents
Contents Safety Notice ............... . 2 Chassis Block Diagram . -
Page 3: Chassis Block Diagram
IC802 5VRC MEMORY Front Key in IC801 R/C in A1901A 9V-1 C Bus CRT UNIT H-VCC 180V PRE-AMP. 5V-2 Mute Vol. VIDEO Protect HOR. VERT Stand by Mono/St. Q901 5V-2 D1910 X161 Heater SAW Filter VIDEO-OUT IF in IF OUT IC201 INT. - Page 4 SOUND VOLUME OUT (ACTIVE=LOW) BASS EXPANDER ON/OFF (ON=HIGH) IC001 BASS EXPANDER CIRCUIT MUTE OUTPUT AUDIO AMP. (MUTE ON=HIGH) COLOUR SYSTEM OPTION INPUT IC801 KEY SWITCH IN RESET INPUT (ACTIVE=LOW) SWITCH QXXABV864 A101 MONO/STEREO F/S TUNER IC1201 TV/AV SWITCH AUDIO SWITCH (TV=LOW, AV=HIGH) IC2001 TELETEXT...
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Page 5: Ic Block Diagrams
IC Block Diagrams IC201 < IF/Video/Chroma/Def. > LA76818 Audio Output SIF Input FM Output/Selected SIF APC Filter Audio Output SIF Output PIF AGC Ext. Audio Input RF AGC Output PIF Input1 APC Filter VCO Coil 1 PIF Input 2 VCO Coil 2 IF Ground VCO Filter IF Vcc... - Page 6 Data Clock 1000p Filter 0.01u SIF.In SIF.Out 500K FM Gain Deem-TC 1bit 1bit to BUS Line Sound 500K Interface emph FM.Level 5bit pre- SIF. Sys scaller VIF AMP 2bit 2.5V FM Mute IF In Filter Chroma 1 bit VIF 1 VIF 2 VIF 3 Video...
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Page 7: Service Information
IC Block Diagrams IC501 < Vertical Output > LA78040/TDA9302H IC281 <SECAM Decoder> LA7642N Thermal EQU-Adj Video In Kil-Out AV/SECAM 4.43MHz In SC-In 4MHz In Protection Pulse System Pulse Bell/EQU Bell/EQU Filter Pump KILLER Clamp Filter F0 Adj ID-KIL SW/ALC 4.43DC ID-Fil 4M-DC B-Y Out... -
Page 8: Service Adjustments With Replacing Memory Ic(Ic802)
Service Adjustments with Replacing Memory IC(IC802) Note: The CPU (IC801) and memory IC (IC802) store the service adjustments data and controls data for each circuit.When the Memory IC(IC802) 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 9 Service Adjustments with Replacing Memory IC(IC802) [2] Required Service Adjustments Readjust the following service adjustments. Adjustments Service Mode No. & Item RF AGC Item 01, RF AGC Horizontal centre Item 02, H-PHA Vertical size Item 04, V-SIZ Vertical-S correction Item 05, V-SCO Vertical linearity Item 06, V-LIN Gray scale...
- Page 10 Service Adjustments with Replacing Memory IC(IC802) INITIAL DATA ITEM DESCRIPTION DATA RANGE PORWN Switching of RF Pre-shoot and Over shoot. PORSN RF Pre-shoot/Over shoot Adj. 00~03 RF Tint Adj. TINT -16~+15 -16~+15 NTSC 4.43 Tint Adj. TINT 443 SHRF RF Sharpness Adj. -32~+31 TEXTC -128~+127...
- Page 11 Service Adjustments with Replacing Memory IC(IC802) [Entering to Service Mode] Press and hold the MENU button on the Remote Control and press the VOLUME (+) button on the TV set. Following setting items appears on the screen. MENU Display for [RF AGC] RF AGC adjustment MENU Read Status SI.
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Page 12: 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 11. Item 01 [RF AGC] AGC Item 06 [V-LIN] VERTICAL LINEARITY NOTE: Do not attempt this adjustment with weak signal. - Page 13 Service Mode Adjustments Items 14-17, 19-21 GREY SCALE (1) Receive the monochrome circular pattern. (2) Set the brightness and colour to normal, contrast to maximum. (3) Enter to the service mode. (4) Set each value of Item-14 RBIAS, 15 GBIAS, 16 BBIAS, 17 RDRIV and 19 BDRIV mode to 64. (5) Select Item-20 mode to be one horizontal scanning line and turn the screen volume on the FBT to obtain just visible one coloured line.
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Page 14: Service Adjustments
Service Adjustments Following adjustments are not required to readjust when replacing the memory IC. VERTICAL CENTRE B-VOLTAGE SUPPLY CHECKING (1) Receive the monochrome circular pattern. (1) Connect DC meter to TP-B and the ground. (2) Set the brightness and contrast to maximum. (2) Tune the receiver to an active channel and synchro- (3) Adjust the vertical centre of the picture with SW501. -
Page 15: 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 16: 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 17: Cabinet Parts List
Cabinet Parts List C4VK/C4VKA Note: Parts order must contain Service Ref. No., Part No., and descriptions. Model CM21KX8S, CM21KX8SA AUDIO IN VIDEO IN ANT. 75Ω AUDIO OUT VIDEO OUT TV/A V MENU TV/AV TIMER VIDE O L-AU DIO-R -/-- BASS... -
Page 18: Chassis Electrical Parts List
C4VK/C4VKA Chassis Electrical Parts List (Model CM21KX8S & CM21KX8SA) 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 19 C4VK/C4VKA Ref. No. Part No. Description Ref. No. Part No. Description 405 015 8704 TR 2SC2812-L6-TB 405 011 8609 TR 2SC1740S-S 405 015 8902 TR 2SC2812-L7-TB 405 012 2002 TR 2SC1815-GR Q174 405 014 4509 TR 2SC2412K-T-96-R 405 012 2101 TR 2SC1815-O 405 014 4608 TR 2SC2412K-T-96-S...
- Page 20 C4VK/C4VKA Ref. No. Part No. Description Ref. No. Part No. Description 409 265 4806 IC L78M05CV C222 403 305 3507 CERAMIC 0.1U Z 409 172 1509 IC MC78M05CT C223 403 305 3507 CERAMIC 0.1U Z 409 320 5700 IC UPC78M05AHF C224 403 305 3507 CERAMIC...
- Page 21 C4VK/C4VKA Ref. No. Part No. Description Ref. No. Part No. Description C604 403 271 9602 CERAMIC 1000P K C856 403 113 3805 CERAMIC 1000P K C605 403 271 9602 CERAMIC 1000P K C861 403 047 8402 ELECT 0.1U M C606 403 271 9602 CERAMIC 1000P K...
- Page 22 C4VK/C4VKA Ref. No. Part No. Description Ref. No. Part No. Description R130 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R433 401 007 1104 CARBON 1K JA 1/2W R132 401 105 5202 MT-GLAZE 470 JA 1/16W R434 401 009 9306 CARBON 390 JA 1/2W R140...
- Page 23 C4VK/C4VKA Ref. No. Part No. Description Ref. No. Part No. Description R804 401 105 7909 MT-GLAZE 0.000 ZA 1/16W COIL R805 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R811 401 105 5301 MT-GLAZE 4.7K JA 1/16W L171 645 049 3379 TRANS,OSC,38MHZ R812 401 105 0603...
- Page 24 C4VK/C4VKA Ref. No. Part No. Description Ref. No. Part No. Description 407 013 4306 DIODE 1S2076A D685 407 099 5600 ZENER DIODE MTZJ6.8A 407 013 7109 DIODE 1S2473 407 057 4003 ZENER DIODE RD6.8EB1 D476 407 099 5600 ZENER DIODE MTZJ6.8A D686 407 099 5501 ZENER DIODE MTZJ6.2C...
- Page 25 C4VK/C4VKA Ref. No. Part No. Description Ref. No. Part No. Description 405 015 3907 TR 2SC2688-L MISCELLANEOUS 405 015 4003 TR 2SC2688-M Q741 406 000 6804 TR 2SA1015-GR(SAN) K701-L 645 026 2005 SOCKET,CRT 8P 405 001 7407 TR 2SA1015-O(SAN) 405 001 7605 TR 2SA1015-Y(SAN) 405 004 3109 TR 2SA564A-Q(CU)
- Page 26 -26-...
- Page 27 -27-...
- Page 28 SANYO Electric Co., Ltd. A14800 /June /’02 /30 BB Printed in Japan...
- Page 29 N: Metalized carbon Q,R,S Kind (M.carbon) 8. This circuit diagram covers a basic or representative chassis only. There S: Oxied metalized CM21KX8S-00 W: Wire wounding may be some components or partial circuit differences between the Rated wattage (1/2W) POSISTER SERVICE...
- Page 30 CRT BOARD (Component Location) Waveforms & Voltages (On the Main Board) IC201 (IF/VIDEO/CHROMA) (B-OUT) Pin-1 2.3V 2.2V 2.7V 3.2V 2.9V 2.9V 5.0V 2.5V 2.3V 4.3V 4.1V 4.3V 1.6V 1.7V 1.6V 8.3V 2.2V 2.1V 2.1V 2.0V 2.2V 2.7V 5.2V 2.6V 0.7V 1.3V 1.7V 0.9V...