Manuale d’uso / di manutenzione del prodotto AV-29V514/B del fabbricante JVC
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SERVICE MANUAL COPYRIGHT © 2004 Victor Co mpan y of Japan, Limited No.YA139 2004/9 FLAT COLOUR TELEVISION YA139 2004 9 AV-29V514 /B TABLE OF CONTENTS 1 PRECAUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2 (No.YA139) SPECIFICATION Design & specification s are subject to cha nge without notice. Items Contents Dimensions (W × H × D) 81.2cm × 58.4cm × 52.0cm Mass 41kg TV RF System B, G, I, D, K, M Colour System TV Mode Video Mode PAL / SECAM / NTSC3.
(No.YA139)1-3 SECTION 1 PRECAUTION 1.1 SAFETY PRECAUTIONS (1) The design of th is product contains special hardware , many circuits and components specially fo r safety purposes. For continued prot ection , no changes shoul d be made to the original desig n unless authorized in writing by the manufacturer.
1-4 (No.YA139) SECTION 2 SPECIFIC SERVICE INSTRUCTIONS 2.1 FEATURES • New chassis design enables use of an interactive on-screen con trol. • Pure flat CRT produces fine te xtu red picture in every detail. • Wide range voltage (110V ~ 240V) for AC power inpu t.
(No.YA139)1-5 FRONT PANEL CONTROLS REAR TERMI NAL IN (VIDEO-3) VR MENU OK L/MONO CHANNEL VOLU M E TV/VIDEO EXIT POWE R 4 3 2 1 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 HEADPHONE jack IN (.
1-6 (No.YA139) 2.3 MAIN CPU [MAIN PWB : IC701] PIN FUNCTION Pin no. Pin name I/O Remark 1 VssP2 - GND 2 VssC4 - GND 3 V1.8C4 I 1.8V (Digital) 4 V3.3A3 I 3.3V 5 VrefP_Sdac I 3.3V (Positive) 6 VrefN_Sdac - GND 7 VrefP_Sdac I 3.3V (Negative ) 8 VrefN_Sdac - GND 9 VrefP_Sdac I 3.
(No.YA139)1-7 SECTION 3 DISASSEMBLY 3.1 DISASSEMBLY PROCEDURE 3.1.1 REMOVING THE REAR COVER • Unplug the power cord. (1) Remove the 16 screws [A] as shown in Fig.1. (2) Withdraw the REAR COVER toward you. CAUTION: When reinstalling th e rear cover, carefully push it inward after inserting the MAIN PWB into the REAR COVER groove.
1-8 (No.YA139) Fig.1 CRT SOCKET PWB FRONT CONTROL PWB (1/2) FRONT CONTROL PWB (2/2) MAIN PWB FBT CHASSIS BASE CONTROL BASE ( × 4) ( × 16) A PICTURE TUBE D C A V TERMINAL BOARD FRONT CABINET CHASSIS BASE CONTROL BASE [FRONT SIDE] E F (X2) G SPEAKER (X2) G SPEAKER Fig.
(No.YA139)1-9 3.2 REPLACEMENT OF MEMORY IC 3.2.1 MEMORY IC This TV uses the following memory IC. Memory IC: IC702 on MAIN PWB The memory IC memorizes da ta for correctly operatin g the video and deflection circuits. When replac ing the memory IC, be sure to use the same type IC written with the initial values of data.
1-10 (No.YA139) 3.2.3 FACTORY SETTING VALUE SETTING OF SYSTEM CONSTANT SET Table 1 SYSTEM MULTI COMB YES TIL T YES NO SUPER BASS TEXT NO LANGUAGE E/T SOUND STEREO BILINGUAL NO BLUE BACK MUTE NO CO.
(No.YA139)1-11 SETTING OF BASIC FUNCTIONS Table 2 SETTING OF MENU SCREEN Table 3 SERVICE MENU SETTING ITEMS Table 4 Setting item Setting value POWER Off SUB POWER On VOLUME 15 COLOR SYSTEM.
1-12 (No.YA139) 3.3 REPLACEMENT OF CHIP COMPONENT 3.3.1 CAUTIONS (1) Avoi d heating for more than 3 seconds. (2) Do not rub the electrodes and the resist parts of the pattern. (3) W hen removing a chip part, melt the solder adequately. (4) Do not reuse a chip part af ter removing it.
(No.YA139)1-13 SECTION 4 ADJUSTMENT 4.1 ADJUSTMENT PREPARATION (1) You can make the necess ary adjustments for this unit with either th e remote control u nit or with the adjustment equipment and parts as given below.
1-14 (No.YA139) 4.5 ADJUSTMENT LOCATIONS E1 TO P CRT EARTH (BRAIDED ASS'Y) CRT EARTH (BRAIDED ASS'Y) U TP-47B TP-47G TP-47R E2 HV I 2 C UPPER : FOCUS IC702 CRT SOCKET PWB ASS’Y (SOLDER SID.
(No.YA139)1-15 4.6 BASIC OPERATION IN SERVICE MENU Operate the SERVICE MENU with the remote control unit. 4.6.1 SERVICE MENU ITEMS With the SERVICE MENU, various settings ( adjustments) can be made, and they are broadly classified in the fo llowing items of se ttings: 4.
1-16 (No.YA139) 4.6.3 SERVICE MENU FLOW CHART Fig.1 1. IF SERVICE MENU 1. VCO 2. DELAY POINT IF SERVICE MENU VCO (CW) ***** MHz TOO HIGH ABOVE REFERENCE JUST REFERENCE BELOW REFERENCE TOO LOW DELAY POINT AGC TAKEOVER ** 2. V/C Setting item 1. SCREEN 2.
(No.YA139)1-17 4.7 ADJUSTMENT PROCEDURE 4.7.1 B1 VOLTAGE 4.7.2 FOCUS ADJUSTMENT 4.7.3 IF CIRCUIT ADJUSTMENTS Item Measuring instrument Test point Adjustment part Description B1 VOLTAGE check Signal generator DC voltmeter B1 (pin 1) GND (pin 5) [CN00X connector in MAIN PWB] (1) Re ceive a black and white signal.
1-18 (No.YA139) 4.7.4 VIDEO CIRCUIT ADJUSTMENTS • The setting (adjustment) using the remote control unit is made on the basis of the initial setting values. • The setting values which adjust the screen to the optimum co ndition can be different from the initial setting values .
(No.YA139)1-19 WHITE BALANCE (High light) adjustment Signal generator Remote control unit [2. V/C] 3. WDR (R ) 3. WDR (G) 3. WDR (B) Notes: • Proceed to the following adjustme nt after having completed the WHITE BALANCE (Low light) adjustment. • Set PICTURE MODE (VSM) to "BRIGHT".
1-20 (No.YA139) SUB COLOUR 1 adjustment Remote control unit [2. V/C] 6. COLOUR [Method of adjustmen t without measuring instrument] Notes: • Proceed to the following adjustmen t after having completed the SUB CONTRAST adjustment. • Set PICTURE MODE (VSM) to "BRIGHT".
(No.YA139)1-21 4.7.5 AUDIO SETTING This submenu is for display only, no adjustment is required. SUB TINT 1 adjustment Signal generator Remote control unit [2. V/C] 7. TINT [Method of adjustment with out measuring in strument] Notes: • Proceed to the following adjustment after havi ng completed the SUB CONTRAST adju stment.
1-22 (No.YA139) 4.7.6 DEFLECTION CIRCUIT ADJUSTMENTS • The setting (adjustment) using the remote control unit is made on the basis of the initial setting values. • The setting values which adjust the screen to the optimum co ndition can be different from the initial setting values .
(No.YA139)1-23 V. HEIGHT adjustment Signal generator Remote control unit [4. DEF] 3. V-SIZE 14. V-ZOOM - PAL V. HEIGHT - (1) Re ceive a PAL crosshatch signal. (2) Sel ect 3. V-SIZE . (3) Set the initial setting val ue of 3. V-SIZE . (4) Sel ect 14. V-ZOOM .
1-24 (No.YA139) SIDE PIN adjustment Signal generato r Remote control unit [4. DEF] 7. EW-PIN - P AL SIDE PIN - (1) Receive a PAL crosshatch signal. (2) Select 7. EW-PIN . (3) Set the initial setting value of 7. EW-PIN . (4) Adjust 7. EW-PIN so that the first vertical lines at the left and right edges on the screen are straight.
(No.YA139)1-25 CORNER PIN adjustment Signal generator Remote control unit [4. DEF] 8. COR-UP 9. COR-LO - PAL CORNER PIN - (1) Re ceive a PAL crosshatch signal. (2) Sel ect 8. COR-UP . (3) Set the initial setting val ue of 8. COR-UP . (4) Sel ect 9. COR-LO .
1-26 (No.YA139) COMPRESS : ON (16:9) Item Measuring instrument Test po int Adjustment part Description V. HEIGHT adjustment Signal generato r Remote control unit [4.DEF] 14. V. ZOOM 3. V-SIZE - PAL V. HEIGHT - (1) Receive a PAL cro sshatch signal of vertica l frequency 50Hz.
(No.YA139)1-27 SIDE PIN adjustment Signal generator Remote control unit [4. DEF] 7. EW-PIN - PAL SIDE PIN - (1) Re ceive a PAL crosshatch signal. (2) Sel ect 7. EW-PIN . (3) Set the initial setting val ue of 7. EW-PIN . (4) Adj ust 7. EW-PIN so that the first vertical lines at the left and right edges on the screen are straight.
1-28 (No.YA139) VIDEO - 2 SET: COMPONENT 4.7.7 VSM PRESET SETTING Item Measuring instrument Test po int Adjustment part Description H. POSITION adjustment Signal generato r Remote control unit [4. DEF] 4. H-CENT (1) Receive a PAL circle pa ttern signal to VIDEO-2 component terminal.
(No.YA139)1-29 4.7.8 PURITY AND CONVERGENCE PURITY ADJUSTMENT Note: The final adjustment of CON VERGENCE must be done after the FOCUS adjustment. (CONVERGENCE is chang ed by FOCUS adjustment.) When makes difference by FOCUS adjustment, should be reconfirmi ng PURITY ad justment.
1-30 (No.YA139) STATIC CONVERGENCE ADJUSTMENT (1) Input a crosshatch signal. (2) Using 4-pole convergence m agnets, overlap the red and blue lines in the centre of the screen (Fig.
(No.YA139)1-31 SECTION 5 TROUBLESHOOTING 5.1 SELF CHECK FUNCTIONS 5.1.1 OUTLINE This model has sel f check functions given b elow. When an abnorma lity has been detected , the SUB POWER is turned off and POWER LED flashes to inform of the failure.
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(No.YA139) AV & MULTIMEDIA COMPANY VIDEO DISPL AY CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Y okohama, kanagawa-prefecture, 221-8528, J apan Victor Company of Japan, Limited WPC Printed in Ja.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il JVC AV-29V514/B è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del JVC AV-29V514/B - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso JVC AV-29V514/B imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul JVC AV-29V514/B ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il JVC AV-29V514/B, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del JVC AV-29V514/B.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il JVC AV-29V514/B. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo JVC AV-29V514/B insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
