Noblex 29TC676F Service Manual

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SERVICE MANUAL Colour Television

Specifications

Power Source . . . . . . . . AC220V, 50Hz / 60Hz

Receiving System . . . . . PAL (M/M, N/N), NTSC (M/M)

Channel Coverage

Antenna mode VHF: CH02-CH13, UHF: CH14-CH69

CATV mode

VHF band: CH01-CH13, Mid band: CH14-CH22

Super band: CH23-CH36, Hyper band: CH37-CH64

Ultra band: CH65-CH94 and CH100-CH125

Low mid band: CH95-CH99

Video IF . . . . . . . . . . . . . 45.75MHz

Aerial Input Impedance 75Ω

Input Terminals

AV1 (Video): Composite Video Input (Phone Jack) x 1

S-Video Input (Separated Y/C) DIN 4-pin Jack x 1

AV1 (Audio):L/R Stereo Input (Phone Jack) x 1 set

AV2 (Video):Composite Video Input (Phone Jack) x 1

AV2 (Audio):L/R Stereo Input (Phone Jack) x 1 set

AV3 (Video): Component Y, C

AV3 (Audio): L/R Stereo Input (Phone Jack) x 1 set

Output Terminals

Video Monitor Output: Phono jack x 1

Audio Monitor Output: L/R Stereo Output (Phone Jack) x 1 set

Headphone Jack: Mini stereo jack x 1

Sound Output (RMS) . . . 5W + 5W

Speaker . . . . . . . . . . . . . . 6cm x 12cm x 2 pcs.

Dimensions . . . . . . . . . . . 758.5(W) x 594(H) x 486.5(D)mm

Weight . . . . . . . . . . . . . . . approx. 40 Kg

Specifications subject to change without notice.

BB7A

, C

Input (Phone Jack) x 1 set

NOBLEX

FILE NO.

Model No. 29TC676F

Service Ref. No. 29TC676F-00

Product Code: 13007500

Original Version

Chassis Series: LB5-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 trans-

mission system and power source differ from

the design specifications. Refer to the speci-

fication table.

(Argentina)

Table of Contents

Summary of Contents for Noblex 29TC676F

Page 1: Specifications
FILE NO. SERVICE MANUAL Colour Television Model No. 29TC676F (Argentina) Service Ref. No. 29TC676F-00 Specifications Product Code: 13007500 Power Source ..AC220V, 50Hz / 60Hz Receiving System ..PAL (M/M, N/N), NTSC (M/M)
Page 2: Table Of Contents
Contents Safety Notice ................2 Chassis Block Diagram .
Page 3: Chassis Block Diagram
Chassis Block Diagrams SIGNAL PROCESSING CIRCUIT...
Page 4: Ic Block Diagrams
IC Block Diagrams IC601 POWER SUPPLY IC (QTN6Q04-E)
Page 5 IC Block Diagrams IC201 < IF/Video/Chroma/Def./CPU > LA76933...
Page 6 IC Block Diagrams IC501<Vertical.Output> LA78041-E IC001<AUDIO AMP> LA42032...
Page 7 IC Block Diagrams IC3401 <MTS> CXA2234QP...
Page 8: Service Adjustments
Service Adjustments General This set has an On-screen Service Menu system included in the CPU that allows remote operation for most of the service adjustments. IC802 (EEPROM) Replacement When IC802 (EEPROM) is replaced, IC201 (CPU) will automatically write the initial reference data into IC802 for basic TV operation. However, the bus data should be checked and some bus data should be set up before attempting the service adjustments.
Page 9 Service Adjustments On-screen Service Menu Following table shows the initial values which have been stored in the CPU ROM, and items for the service adjustments. When IC802 (EEPROM) is replaced, check the bus data to confirm they are the same as below. The shaded menu should be checked and be set up or readjusted according to the procedures described in the following pages.
Page 10 Service Adjustments Item Initial value Range Description G-YA 00,01 G-Y Angle RBGB 00~15 R-Y/B-Y Gain Balance RBAG 00~15 R-Y/B-Y Angle G-YAN 00~01 Difference value of NTSC G-Y Angle RBGBN -8~+7 Difference value of NTSC R-Y/B-Y Gain Balance RBAGN -8~+7 Difference value of NTSC R-Y/B-Y Angle RBADP -8~+7 Difference value of DVD PAL R/B Angle...
Page 11 Service Adjustments Item Initial value Range Description VSURF 00~ 01 Adjustment of Vertical Sync. Separation Sensitivity (RF) CDMRF 00~07 Vertical Count Down Loop Adjustment (RF) AFCAV 00~01 Adjustment of AFC Gain & Gate (AV) VSUAV 00~01 Adjustment of Vertical Sync. Separation Sensitivity (AV) CDMAV 00~07 Vertical Count Down Loop Adjustment (AV)
Page 12: Important Notice
Service Adjustments Important Notice: Do not attempt to adjust service adjustments not listed on below otherwise it may cause loss of performance and for correct operation. Item 01 [RFAGC] AGC NOTE: Do not attempt this adjustment with weak signal. 1. Tune the receiver to most clearest (or strongest) VHF Vertical size station in your area.
Page 13: Main Board
Service Adjustments Items 35-42 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. Set each value of Item-35 RBIAS, 36 GBIAS, 37 BBIAS mode to 00. Set each value of Item-38 RDRIV, 40 BDRIV mode to 64, 39 GDRIV to 08.
Page 14 Service Adjustments Service Adjustment-2 (MTS Adjustment) Following table shows the initial values of MTS Adjustment which have been stored in the CPU ROM. Item Initial value Range INPUT LEVEL 00~15 HIGH SEPARATION 00~63 LOW SEPARATION 00~63 1. Enter the Service Menu While pressing the MENU button on the televi- sion, press the Number Key 3 on the remote control unit.
Page 15 Service Adjustments MAIN BOARD SOUND LEVEL ADJUSTMENT 1. Receive the channel with audio 1KHz 100% modulation signal. 2. Connect a DC Volt-Meter to TP-317(JD64) and the ground. 3. Set the Surround OFF. Press and hold the MENU button on the TV set, and press “3” button on the remote control transmitter to enter the service mode.
Page 16: Service Adjustment
Service Adjustments 6. Select “HI SEPARATION” by pressing the CHANNEL UP/DOWN button on the remote control or TV set. 7. Adjust the level of 4KHz at TP-318 (JE53) to become Minimum leakage TP-318 (L) minimum level by pressing the VOLUME (+/-) button on the remote control or TV set.
Page 17 Service Adjustments Service Adjustment-4 FOCUS ADJUSTMENT 1. Receive the monochrome circular pattern. FOCUS VR (Upper side) 2. Set the brightness to normal and contrast to maximum. 3. Adjust the focus control on the F.B.T. for the best focus on the screen centre. +B POWER SUPPLY CHECK 1.
Page 18: Cabinet Parts List
BUTTON POWER-BC2A IS00620 COIL SPRING-D8HA 1AA2DEM0447-- DEC IND-BC2A 1AA2DDM0199- DOOR-BB7A 1AA2BUM0486-- BUTTON UNITED-C8AE 1AA2DES0921-- DEC SHEET-BB7A 1AA2CAM0594B- CABINET FRONT-BB7A 1AA2BAA0021-A BADGE,NOBLEX-C4CA 1AA2CBM0433-- CABINET BACK-BB7E 1AA6P4S3231-- LABEL RATING-BB7A 1AV0U10B30303 ASSY,REMOCON JXMTG 1AA2RCM0226-- RC-BATTERY LID-JXMTA 1AV4U19B00700 ANTENNA CONVERTER 1AV4U19B00701 ANTENNA CONVERTER 1LG6P1P0178-A...
Page 19: Chassis Electrical Parts List
R : ±0.25-0pF S : ±0-0.25pF E : +0-1pF More than 10pF A : Not specified B : ±0.1% C : ±0.25% D : ±0.5% F : ±1% G : ±2% H : ±3% J : ±5% K : ±10% L : ±15% M : ±20% N : ±30%...
Page 20 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description A013 013BA7E ELECTRICAL PARTS DIRECTORY C1111 CPXLB1C100ZAN NP-ELECT 10U M 16V L901 1LB4L81B00700 COIL,DEGAUSSING C1112 CPXLB1C100ZAN NP-ELECT 10U M 16V Q901 BXXAVB429TFU- CRT A68ELM021X003 C112 CK1H103KGQBNZ CERAMIC 0.01U K 50V SP901...
Page 21 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description C609 CEXAA2G271ACN ELECT 270U M 400V C3427 CEXLB1H1R0VDN ELECT 1U M 50V C609 CEXAA2G271AMN ELECT 270U M 400V C3431 CK1H472KGQBNZ CERAMIC 4700P K 50V C609 CEXLB2G271UBN ELECT 270U M 400V C3432...
Page 22 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description D003 DD1SS133----N DIODE 1SS133 D462 DD1S2076A---N DIODE 1S2076A-E D003 DD1S2076A---N DIODE 1S2076A-E D465 DDXAAED0434-- DIODE 1N4148 D1001 DZUDZS12B---G ZENER DIODE UDZS-TE-1712B D465 DD1SS133----N DIODE 1SS133 D1007 DZUDZS12B---G ZENER DIODE UDZS-TE-1712B D465...
Page 23 Chassis Electrical Parts List Safety Safety Location Description Location Part No. Description Part No. D887 DDXAAED0434-- DIODE 1N4148 L461 1LB4L26B0030N INDUCTOR,2.0MH D887 DD1SS133----N DIODE 1SS133 L462 1LB4L26B0041N INDUCTOR,550UH D887 DD1S2076A---N DIODE 1S2076A-E L601 LQ0001 LINE FILTER F601 F31S4R0A2HOTS FUSE 250V L601 1AV4F35B0470N LINE FILTER...
Page 24 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description R009 RDD1001JPAANN CARBON 1K JA 1/6W R1112 RDB3900JPBANN CARBON 390 JA 1/4W R010 RGF6801JTCANZ MT-GLAZE 6.8K JA 1/10W R1114 RDB3900JPBANN CARBON 390 JA 1/4W R112 RGF5601JTCANZ MT-GLAZE 5.6K JA 1/10W R011...
Page 25 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description R484 RDB1003JPBANN CARBON 100K JA 1/4W R280 RDD1000JPAANN CARBON 100 JA 1/6W R485 RDB8202JPBANN CARBON 82K JA 1/4W R284 RGF3303JTCANZ MT-GLAZE 330K JA 1/10W R486 RGF5601JTCANZ MT-GLAZE 5.6K JA 1/10W R285...
Page 26 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description R654 RDB2201JPBANN CARBON 2.2K JA 1/4W SW1906 1AV4S10B5650J SWITCH,PUSH 1P-1TX1 R655 RSXLB22R7JXAS OXIDE-MT 2.7JA SW601 1AV4S10B5560N SWITCH,PUSH POWER 2P-2T R655 RS22R70JGDAGN OXIDE-MT 2.7 JA SW601 1AV4S10B5750N SWITCH,PUSH POWER 2P-2T R655 RS22R70JGDANN...
Page 27 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description R721 RGF1800JTCANZ MT-GLAZE 180 JA 1/10W R723 RDD4700JPAANN CARBON 470 JA 1/6W R724 RSXLB2123JXAS OXIDE-MT 12KJA 2 W R724 RS21202JGDAGN OXIDE-MT 12K JA R724 RS21202JGDANN OXIDE-MT 12K JA R732 RDD10R0JPAANN...
Page 28 NOBLEX Mar./2007...

Noblex 29TC676F Service Manual

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