Instruction d'utilisation JVC AV-20NMG3B

Instruction d'utilisation pour le dispositif JVC AV-20NMG3B

Dispositif: JVC AV-20NMG3B
Catégorie: Téléviseur CRT
Fabricant: JVC
Dimension: 0.63 MB
Date d'addition: 12/16/2013
Nombre des pages: 32
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Résumés

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Résumés du contenu
Résumé du contenu de la page N° 1

AV-20N3
AV-20NMG3
AV-20NMG3B
SERVICE MANUAL
COLOUR TELEVISION
BASIC CHASSIS
AV-20N3/AV-20N3/D
CG
AV-20NMG3/AV-20NMG3B
/AV-20NMG3
/-A
[
RM-C364GY ]
[ RM-C364 ]
CONTENTS
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SPECIFICATIONS・・・・・ ・・・・・ ・・・・ ・・・・ ・・・・ ・・・・ ・・・・ ・・・・ ・・・・ ・・・・ ・・・・ ・・・・ ・・・・ ・・・・・ ・・・・・・・・・・ ・・・・・ ・・・・ ・・・・ ・・・・ ・・・・ ・・・・ ・・・・ ・・・・ ・・・・ ・・・・ ・・・・ ・・・・ ・・・・

Résumé du contenu de la page N° 2

AV-20N3 AV-20NMG3 AV-20NMG3B SPECIFICATIONS CONTENTS ITEM AV-20NMG3 AV-20N3 AV-20NMG3B /D AV-20N3 /-A AV-20NMG3 Dimensions(W×H×D) 619mm×458mm×488mm Mass 19kg TV RF System B/G, I, D/K B/G, I, D/K,M RF Mode PAL / SECAM PAL / SECAM / NTSC3.58 / NTSC4.43 Colour System VIDEO Mode PAL / SECAM / NTSC3.58 / NTSC4.43 Picture Tube Visible size: 48cm measured diagonally High Voltage 26.5kV±1.5kV(at zero beam current) Receiving Frequency ~ VHF (VL) 46.25MHz 168.25MHz VHF (VH) 175.25MHz~463.25MHz UHF 471.25M

Résumé du contenu de la page N° 3

AV-20N3 AV-20NMG3 AV-20NMG3B SAFETY PRECAUTIONS 1. The design of this product contains special hardware, many 9. Isolation Check circuits and components specially for safety purposes. For (Safety for Electrical Shock Hazard) continued protection, no changes should be made to the original After re-assembling the product, always perform an isolation design unless authorized in writing by the manufacturer. check on the exposed metal parts of the cabinet (antenna Replacement parts must be identical

Résumé du contenu de la page N° 4

AV-20N3 AV-20NMG3 AV-20NMG3B FEATURES " New chassis design enables use of an interactive on-screen control. " Wide range voltage (110V~240V) AC power input. " With AUDIO / VIDEO INPUT & OUTPUT terminal. " MUTING button can reduce the audio level to zero instantly. " Functional remote control to operate T V set (for channel select, volume control, power ON/OFF, etc.) from a distance. 2 " I C bus control utilizes single chip ICs for IF, V/C, DEF. VSM PRESET, PRESET & SETUP TOUR. " By means of

Résumé du contenu de la page N° 5

AV-20N3 AV-20NMG3 AV-20NMG3B FUNCTIONS ■ FRONT PANEL MENU buttons 1 -+ CHANNEL / buttons 2 -+ VOLUME / buttons 3 AI ECO sensor 4 REMOTE CONTROL sensor 5 O 6 N TIMER lamp 7 POWER lamp MAIN POWER button 8 A/ 9 V INPUT terminal 10 HEADPHONE jack 7 10 9 1 2 3 4 5 6 8 ■ REAR TERMINAL ANT Terminal 1 2 VI 2 DEO INPUT Terminal 1 3 V 3 IDEO OUTPUT Terminal 4 A 4 UDIO INPUT Terminal 5 AUDIO OUT PUT Terminal 5 No. 52025 5

Résumé du contenu de la page N° 6

AV-20N3 AV-20NMG3 AV-20NMG3B ■ REMOTE CONTROL UNIT /D /-A RM-C364GY : AV-20N3 / AV-20N3 / AV-20NMG3 / AV-20NMG3 RM-C364 : AV-20NMG3B ECO SENSOR key 1 1 SOUND SYSTEM key 2 2 10 COLOUR SYSTEM key 3 3 11 4 TV/VIDEO key 4 OFF TIMER key 5 12 5 CHANNEL SCAN key 6 RETURN+key 7 6 8 DISPLAY key 13 7 CHANNEL key 9 14 8 10 POWER key 15 PICTURE MODE key 11 Number (CH.) key 12 16 9 13 -/--key 14 MUTING key MENU key 15 MENU ▲/▼ key MENU -/+ key 16

Résumé du contenu de la page N° 7

AV-20N3 AV-20NMG3 AV-20NMG3B MAIN DIFFERENCE LIST Part Name Main PWB Remote Control Unit Front Cabinet Rating Label Model Name AV-20N3 SCG-1403A-H2 RM-C364GY-1H LC10438-027A-H LC20377-010B-H /D SCG-1425A-H2 AV-20N3 AV-20NMG3 SCG-1422A-H2 LC10438-029A-H AV-20NMG3B RM-C364-1H LC10438-033A-H /-A AV-20NMG3 RM-C364GY-1H LC10438-029A-H LC20413-002B-H Part Name Picture Tube Inst Book Di gest Manual Model Name AV-20N3 A48LWX10X LCT1188-001A-H LCT1189-001A-H AV-20N3/D AV-20NMG3 A48LDD09

Résumé du contenu de la page N° 8

AV-20N3 AV-20NMG3 AV-20NMG3B SPECIFIC SERVICE INSTRUCTIONS DISASSEMBLY PROCEDURE REMOVING THE REAR COVER 1. Unplug the power plug. !! 2. As shown in figure, remove the 6 screws marked !! and a screw marked "". "" 3. Withdraw the rear cover toward you. REMOVING THE MAIN PW BOARD " After removing the rear cover. 1. Slightly raise the both sides of the MAIN PW BOARD by hand. 2. Withdraw the MAIN PW BOARD backward. (If necessary, take off the wire clamp, connectors etc.) REMOVING THE SPEAKER " Aft

Résumé du contenu de la page N° 9

AV-20N3 AV-20NMG3 AV-20NMG3B FRONT CABI. SPEAKER CRT SOCKET C (××2) ×× PWB MAIN PWB SPEAKER C (××2) ×× POWER CORD REAR COVER B (××1) ×× A (××6) ×× No. 52025 9

Résumé du contenu de la page N° 10

AV-20N3 AV-20NMG3 AV-20NMG3B REPLACEMENT OF MEMORY ICs 1. MEMORY ICs This model uses memory ICs. This memory IC data are for proper operation of the video and deflection circuits. When replacing memory ICs, be sure to use ICs written with the initial values of data. 2. PROCEDURE FOR REPLACING MEMORY ICs SERVICE MENU (1) Power off 1.IF 2.V/C Switch the power off and disconnect the power plug from the wall outlet. 3.DEF 4.VSM PRESET 5.PRESET (2) Replace ICs 6.SETUP TO

Résumé du contenu de la page N° 11

AV-20N3 AV-20NMG3 AV-20NMG3B SETTING OF SYSTEM CONSTANT SET Setting value Setting item Setting contents AV-20N3 AV-20N3/D AV-20NMG3 AV-20NMG3B AV-20NMG3/-A MULTI. TRIPLE PAL TRIPLE MULTI. COLOUR YES NO NO BILINGUAL MA MU MU TUNER YES NO YES AI ECO SENSOR E/R/A/P E/R E/C/M/I E/C/M/I E/R/A/P E/R LANG UAGE ON OFF ON OFF B/B SOUND YES 10 20 ~ 230 180 LOCK 250 240 YES NO YES NO COLOUR AUTO MINT MQSS MINT QSS YES NO NO ALC 10 20 40 80 20 TEXT RATE YES NO

Résumé du contenu de la page N° 12

AV-20N3 AV-20NMG3 AV-20NMG3B INITIAL SETTING VALUE OF SERVICE MENU 1. Adjustment of the SERVICE MENU is made on the basis of the initial setting values ; however, the new setting values which set the screen in its optimum condition may differ from the initial setting. 2. Do no t change the initial Setting Values of the Setting (Adjustment) items not listed In “ADJUSTMENT”. 2. V/C Initial setting value Colour system Variable Setting item range PAL SECAM NT SC 3.58 NT SC 4.4 3 RED -128~+127 1. CU

Résumé du contenu de la page N° 13

AV-20N3 AV-20NMG3 AV-20NMG3B 5. PRESET The items in the following table, it is no requirement for adjustment. If values had changed by the miss operation, set the initial setting values in the following table. Colour System Do Not Adjust Initial setting value (Fixed value) Setting item PAL SECAM NT SC 3.58 NT SC 4.43 1. C TRAP FIX 1 1 1 1 2. SHARP PEAK 0 0 0 0 3. ABL 1 1 1 1 4. GAMMA 0 0 0 0 TV 0 2 2 3 5. Y. DELAY TIME VIDEO 0 2 0 2 +3 +3 +3 +3 6. BL ACK EXP START TV 1

Résumé du contenu de la page N° 14

AV-20N3 AV-20NMG3 AV-20NMG3B REPLACEMENT OF IC301 (IF V/C DECODER) " For the IC301(IF V/C DECODER) of this model, all data are written in the micro-computer. So, write the data in the micro- computer in accordance with the following procedures before starting adjustment. PROCEDURES (1) Turn the POWER OFF. (2) Replace the IC301 with a new one. (3) While pressing MENU button and VOL+ button ON the FRONT CABINET simultaneously, turn the POWER ON. When the POWER is turned ON, the data is written in

Résumé du contenu de la page N° 15

AV-20N3 AV-20NMG3 AV-20NMG3B SERVICE ADJUSTMENTS BEFORE STARTING SERVICE ADJUSTMENT 1. There are 2 way of adjusting this TV: One is with the 6. Never touch any adjustment parts, which are not specified REMOTE CONTROL UNIT and the other is the conventional in the list for this adjustment VRs, transforms, condensers, method using adjustment parts and components. etc. 2. The adjustment with the REMOTE CONTROL UNIT is made 7. Preparation for adjustment on the basis of the initial setting values. T

Résumé du contenu de la page N° 16

AV-20N3 AV-20NMG3 AV-20NMG3B BASIC OPERATION OF SERVICE MENU " The adjustment using SERVICE MENU The following adjustment items use the SERVICE MENU in the series of the adjustment. The adjustments are made on the basis of the initial setting values. The adjustment values which adjust the screen to the optimum condition can be different from the initial setting values. With the SERVICE MENU, various settings can be made, and they are broadly classified in the following items of settings. 1.IF・・

Résumé du contenu de la page N° 17

AV-20N3 AV-20NMG3 AV-20NMG3B [Method of setting] 1. IF [1 . VCO] ① 1 Key・・・・・・・・・・・・・・・・・・・・・・・・・ Select 1.IF. ② 1 Key・・・・・・・・・・・・・・・・・・・・・・・・・ Select 1.VCO ③ The VCO (CW) screen will be displayed a allow mark when the AFC voltage is at a certain level. ④ DISPLAY Key・・・・・・・・・・・・・・・・・・ As you press this key twice, you will return to the SERVICE MENU. [2. DELAY POINT] ① 1 Key・・・・・・・・・・・・・・・・・・・・・・・・・ Select 1.IF. ② 2 Key・・・・・・・・・・・・・・・・・・・・・・・・・ Select 2.DELAY POINT. ③ MENU -/+ Key・・・・・・・・・・・・・・・

Résumé du contenu de la page N° 18

AV-20N3 AV-20NMG3 AV-20NMG3B SERVICE MENU FLOW CHART SERVICE MENU SUB MENU 1. IF ***.** VCO (CW) MHz SERVICE MENU TO O HIGH IF ABOVE REFERENCE 1.IF 2.V/C JUST REFERENCE 3.DEF 4.VSM PRESET 1. VCO BELOW REFERENCE 5.PRESET 2. DE LAY P OINT TO O LOW 6.SETUP TOUR OFF ** ***(* *(**) *) ** ***(* *(**) *) AFT ADJUST VCO ADJUST ** ***(* *(**) *) ** ***(* *(**) *) 1-6 SELECT DISP : EXIT 1-2 : SELECT DISP : EXIT FINE *** ****** **

Résumé du contenu de la page N° 19

AV-20N3 AV-20NMG3 AV-20NMG3B ADJUSTMENT LOCATIONS (SOLDER SIDE) CRT SOCKET PWB TOP U TP-47R/G TP-47G/R TP-47B TP-E E1 T CRT EARTH WIRE (BRAIDED ASS'Y) MAIN PWB FRONT F9 01 IC702 IC701 MEMORY IC PW DEG S 1 S IC301 HV TU001 T U HVT 1Pin TP-91(B1) UPPER:FOCUS 2Pin NC LOWER:SCREEN 3Pin X-ray1 4Pin X-ray2 5Pin TP-E( ) No. 52025 19

Résumé du contenu de la page N° 20

AV-20N3 AV-20NMG3 AV-20NMG3B ADJUSTMENTS B1 POWER SUPPLY Measuring Item Test point Ad justment part Description instrument Check of Signal TP-91 ( B1) 1. Input a whole black signal. B1 Power generator TP-E (##) 2. Connect a DC voltmeter to TP-91(B1) and TP-E (#). ## Supply 3. Make sure that the voltage is DC116.5±2.0V. DC Volt- meter FOCUS ADJUSTMENT Measuring Item Test point Ad justment part Description instrument Ad justment Signal FOCUS VR 1. Input a cross-hatch signal. of FOCUS generator [In


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