SERVICE MANUAL COLOUR VIDEO MONITOR 52119 2003 TM-A210G TM-A210G TM-A210G BASIC CHASSIS T1B1 TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
Page 2
Colour System PAL / NTSC 3.58 Environmental Conditions Operation Temperature : 0°C~40°C (32°F~104°F) Operation Humidity : 20%~80% (non-condensing) Power Input AC 220V-240V, 50Hz/60Hz [TM-A210G/C, TM-A210G/E] AC 120V, 60Hz [TM-A210G/U] Power Consumption 0.9A [TM-A210G/C, TM-A210G/E] 1.3A [TM-A210G/U] Picture Tube Full-square type 90° deflection in-line gun Vertical line trio type phosphor stripe pitch 0.63mm / 0.64mm (H/V)
SECTION 1 PRECAUTION SAFETY PRECAUTIONS [EXCEPT FOR UK] (1) The design of this product contains special hardware, (8) When service is required, observe the original lead dress. many circuits and components specially for safety Extra precaution should be given to assure correct lead purposes.
Page 4
SAFETY PRECAUTIONS [FOR UK] (1) The design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits.
Page 5
SAFETY PRECAUTIONS [FOR US] (1) The design of this product contains special hardware, many (10) Isolation Check (Safety for Electrical Shock Hazard) circuits and components specially for safety purposes. For After re-assembling the product, always perform an isolation continued protection, no changes should be made to the original check on the exposed metal parts of the cabinet (antenna design unless authorized in writing by the manufacturer.
SECTION 2 SPECIFIC SERVICE INSTRUCTIONS FEATURES • High-resolution full square CRT is adopted. The excelled color reproducibility and the high resolution that are required of a wide range monitor's use are realized. • It can respond to both NTSC and PAL signal system. The incoming signal was discriminated and the automatic selection function that changes the mode automatically is adopted.
SECTION 3 DISASSEMBLY DISASSEMBLY PROCEDURE 3.1.5 REMOVING THE SPEAKER • Remove the TOP COVER. 3.1.1 REMOVING THE TOP COVER (1) As shown in Fig.2, slightly spread the claws of the speaker (1) Pull out the power cord from AC inlet. holder, and pull up the SPEAKER to remove it.
Page 8
TOP COVER FRONT PANEL ASS'Y CRT SOCKET PWB FRONT CONTROL PWB MAIN PWB FBT HOLDER SIGNAL PWB AUDIO PWB REMOVE THE SPEAKER TERMINAL BRACKET SPEAKER HOLDER REAR PANEL SPEAKER FRONT Fig. 2 POWER CORD Fig.1 1-8 (No.52119)
Page 9
MEMORY IC REPLACEMENT 3.2.1 MEMORY IC This monitor uses the memory IC. In the memory IC, there are memorized data for correctly operating for the video and deflection circuits. When replacing the memory IC, be sure to use IC written with the initial values of data. 3.2.2 MEMORY IC REPLACEMENT PROCEDURE 1.
Page 10
3.2.3 FACTRY SETTING VALUE INITIAL SETTING VALUE TABLE [SET-UP MENU] Setting item Setting content / Range Initial setting value H. POSITION -05 ~ +05 WHITE BALANCE CUTOFF (R / G / B) -09 ~ +09 DRIVE (R / B) -09 ~ +09 CONTROL LOCK ON / OFF STATUS DISPLAY...
Page 11
3.2.4 SERVICE MENU SETTING ITEMS SIGNAL BLOCK DEFLECTION BLOCK Item No. Setting content Item No. Setting content BRIGHT HORIZONTAL POSITION CONTRAST VERTICAL SIZE CHROMA(PAL) VERTICAL SIDE PIN CORRECTION CHROMA(NTSC) VERTICAL CENTER CHROMA(SECAM) VERTICAL LINEARITY PHASE(NTSC) In addition to the ones listed above, the following DEFLECTION BRIGHT(16:9) BLOCK are also available.
Page 12
REPLACEMENT OF CHIP COMPONENT 3.3.1 CAUTIONS (1) Avoid heating for more than 3 seconds. (2) Do not rub the electrodes and the resist parts of the pattern. (3) When removing a chip part, melt the solder adequately. (4) Do not reuse a chip part after removing it. 3.3.2 SOLDERING IRON (1) Use a high insulation soldering iron with a thin pointed end of it.
SECTION 4 ADJUSTMENT ADJUSTMENT PREPARATION (1) There are 2 ways of adjusting this unit: One is with the MENU as On-Screen-Display and the other is the conventional method using adjustment parts and components. (2) The adjustment using the On-Screen-Display is made on the basis of the initial setting values. The setting values which adjust the screen to the optimum condition can be different from the initial setting values.
Page 14
ADJUSTMENT LOCATIONS FRONT CHROMA VIDEO A CONTRAST VIDEO B POWER /PHASE /BRIGHT MENU -(DOWN) +(UP) VOLUME VIDEO B VIDEO A /SELECT FRONT CONTROL PWB POWER SW SIGNAL FRONT VR1401 MAIN PWB H. SIZE VR SIGNAL VR1901 S1401 B1 ADJ VR V CENTER SW AUDIO CN1001...
Page 15
AUDIO PWB MAIN PWB AUDIO A TP-47B AUDIO B TP-E TP-47G IC8602 REMOTE (INPUT /ASPECT) CRT SOCKET PWB (SOLDER SIDE) IC8601 SPEAKER CN8003 SIGNAL PWB MD6201 VIDEO A VIDEO B IC6731 Y/C IN Y/C OUT SHIELD CASE CN6001 CN6002 FRONT CONTROL PWB (No.52119)1-15...
Page 16
BASIC OPERATION OF SERVICE MENU 4.5.1 SERVICE MENU ITEMS With the SERVICE MENU, various settings can be made, and they are broadly classified in the following items of adjustments. It is no requirement for adjustment the portion of the DEFLECTION BLOCK and CONTROL BLOCK. SIGNAL BLOCK This block adjusts the data of the various signal circuit controls.
Page 17
4.5.3 OPERATION OF < BLOCK SELECT > SCREEN While the SERVICE MENU < BLOCK SELECT > screen is displaying, in accordance with “FUNCTION DISPLAY” at the lower side of the screen, be able to operate the various items. < BLOCK SELECT > SIGNAL BLOCK WHITE BALANCE BLOCK DEFLECTION BLOCK...
Page 18
4.5.5 SERVICE MENU FLOW CHART SERVICE MENU <BLOCK SELECT> SCREEN < BLOCK SELECT > SIGNAL BLOCK WHITE BALANCE BLOCK DEFLECTION BLOCK CONTROL BLOCK DEF CTRL EXIT SIGNAL BLOCK CUTOFF ADJUSTMENT DISP <S01>: EXIT R CUTOFF : RGB SERV EXIT WHITE BALANCE BLOCK MENU SCREEN DRIVE ADJUSTMENT <...
Page 19
INITIAL SETTING VALUE OF SERVICE MENU [SIGNAL BLOCK] Setting item Variable range Initial setting value BRIGHT 000~255 CONTRAST 000~255 CHROMA (PAL) 000~255 CHROMA (NTSC) 000~255 CHROMA (SECAM) 000~255 PHASE (NTSC) 000~127 BRIGHT (16:9) -128~+127 -008 CONTRAST (16:9) -128~+127 -005 CONTRAST (9300) -128~+127 CHROMA (NTSC 9300) -128~+127...
Page 20
[CONTROL BLOCK] (This is a fixed value. Don’t adjust it.) Setting item Variable range Initial setting value MODEL 000~011 UPPER 000~255 BRIGHT POINT LOWER 000~255 UPPER 000~255 CONTRAST POINT LOWER 000~255 UPPER 000~255 CHROMA POINT LOWER 000~255 UPPER 000~127 PHASE POINT LOWER 000~127 OSD HORIZONTAL POSITION...
Page 21
ADJUSTMENT PROCEDURE 4.7.1 CHECK ITEM Measuring Item Test point Adjustment part Description instrument HIGH VOLTAGE HV voltmeter CRT anode SCREEN VR (1) Select WHITE BALANCE BLOCK with [in FBT] [CONTRAST/BRIGHT] button (< W/B >) from < BLOCK SELECT > SERVICE MENU screen. (2) Select CUTOFF adjustment mode with [CHROMA/ PHASE] button (<...
Page 22
4.7.3 HIGH VOLTAGE HOLD DOWN CIRCUIT CHECK Measuring Item Test point Adjustment part Description instrument HIGH VOLTAGE HV voltmeter X-RAY • After repairing the high voltage hold down circuit, this HOLD DOWN (S1 connector circuit shall be checked to operate correctly. CIRCUIT Resistor 3-pin, 4-pin)
Page 23
4.7.5 DEFLECTION CIRCUIT There are 4 modes of DEFLECTION adjustment depending upon the kind of input signals. The adjustments must always be carried out in regular sequence given below. If you change the figures in the course of the adjustments by returning to the preceding steps, all adjustments come to nothing. The screen aspect ratio 4:3 at 50Hz (PAL) is regarded as the reference value for all adjustments.
Page 24
Measuring Item Test point Adjustment part Description instrument V. POSITION Signal V. CENTER SW (1) Input the circle pattern signal. generator (S1401) (2) Adjust V. CENTER SW to agree with CRT center [MAIN PWB] and signal center of vertical direction. V.
Page 25
Measuring Item Test point Adjustment part Description instrument SIDE PIN Signal [DEFLECTION • Should not adjustment except for in case of under the CORRECTION generator BLOCK] condition that remarkably bad about vertical linearity, & D03 (SIDE PIN (1) Input the crosshatch pattern signal. V.
Page 26
4.7.6 VIDEO CIRCUIT When you perform WHITE BALANCE adjustment, be sure to input a video composite signal. Moreover, set the aspect ratio to 4:3. It is no requirement to adjust in 16:9 mode. Measuring Item Test point Adjustment part Description instrument WHITE Signal...
Page 27
Measuring Item Test point Adjustment part Description instrument WHITE Signal [WHITE BALANCE • Check the LOW LIGHT adjustment has been finished BALANCE generator BLOCK] correctly before performing HIGH LIGHT adjustment. (HIGH LIGHT) 6500 R DRIVE (1) Input the black-and-white signal (Included 100% 6500K &...
Page 28
Measuring Item Test point Adjustment part Description instrument SUB BRIGHT Signal [SIGNAL BLOCK] • Under the condition that Low light adjustment has been generator S01 (BRIGHT) correctly finished. (1) Input the black and white signal (included 0% black). (2) Select the SIGNAL BLOCK with [CHROMA/PHASE] button (<...
Page 29
Measuring Item Test point Adjustment part Description instrument PAL CHROMA Signal TP-47B [SIGNAL BLOCK] (1) Input the PAL full colour bar signal (included 75% generator TP-E S03(PAL CHROMA) white signal). [CRT SOCKET (2) Connect the oscilloscope probe to TP-47B and TP- Oscilloscope PWB] (3) Select the SIGNAL BLOCK with [CHROMA/PHASE]...
Page 30
Measuring Item Test point Adjustment part Description instrument NTSC 3.58 Signal TP-47B [SIGNAL BLOCK] (1) Input the NTSC 3.58 full colour bar signal (included PHASE generator TP-E S06 (NTSC PHASE) 75% white signal). [CRT SOCKET (2) Connect the oscilloscope probe to TP-47B and TP- Oscilloscope PWB] (3) Select the SIGNAL BLOCK with [CHROMA/PHASE]...
Page 31
PURITY AND CONVERGENCE PURITY ADJUSTMENT (1) Demagnetize CRT with the demagnetizer. WEDGE DEFLECTION YOKE (2) Loosen the retainer screw of the deflection yoke. (3) Remove the wedges. (4) Input a green raster signal from the signal generator, and turn the screen to green raster. P / C MAGNETS (5) Move the deflection yoke backward.
Page 32
STATIC CONVERGENCE ADJUSTMENT (1) Input a crosshatch signal. (2) Using 4-pole convergence magnets, overlap the red and blue lines in the center of the screen (Fig.1) and turn them (FRONT VIEW) to magenta (red/blue). (3) Using 6-pole convergence magnets, overlap the magenta (red/blue) and green lines in the center of the screen and turn them to white.
SECTION 5 TROUBLE SHOOTING OUTLINE SELF DIAGNOSIS SCREEN This model includes a SELF DIAGNOSIS FUNCTION that checks the circuit operating status and in event of malfunction, PROTECTION displays and stores the data in a memory. The data are stored in : x 3 X-RAY memory.
Page 34
VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY VIDEO DISPLAY CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan (No.52119) Printed in Japan...
Page 35
PARTS LIST CAUTION The parts identified by the symbol are important for the safety . Whenever replacing these parts, be sure to use specified ones to secure the safety. The parts not indicated in this Parts List and those which are filled with lines --- in the Parts No. columns will not be supplied. P.
Page 36
FRONT CONTROL P.W.BOARD ASS'Y (FX-4091A-H2) ..............3-8 SIGNAL P.W.BOARD ASS'Y (FX-6140A-H2) ................... 3-8 AUDIO P.W.BOARD ASS'Y (FX-8032A-H2) ..................3-9 PACKING [TM-A210G/U , TM-A210G/E] ....................3-11 PACKING PARTS LIST [TM-A210G/U , TM-A210G/E] ................3-11 PACKING [TM-A210G/C] ........................3-12 PACKING PARTS LIST [TM-A210G/C] ....................3-12 3-2(No.52119)
EXPLODED VIEW PARTS LIST -1 Ref.No. Part No. Part Name Description Local CM12970-005-MH FRONT PANEL CM48149-A01 JVC MARK CM46757-001-H SPRING CM46756-A01 POWER KNOB LC21251-001B-H CONTROL SHEET EXPLODED VIEW -1 (No.52119)3-3...
PRINTED WIRING BOARD PARTS LIST Ref No. MAIN P.W.BOARD ASS'Y (FX-1184A-H2) Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C1464 QEHR1HM-226Z E CAPACITOR 22uF 50V M C1465 QCS31HJ-101Z C CAPACITOR 100pF 50V J IC1421 LA78041 C1466 QEHR1HM-226Z E CAPACITOR...
Ref No. Ref No. Part No. Part Name Description Local Part No. Part Name Description Local R1463 QRE141J-681Y C RESISTOR 680Ω 1/4W J CN1001 QGB1505J1-15 CONNECTOR B-B (1-15) R1464 QRE141J-331Y C RESISTOR 330Ω 1/4W J CN1002 QGB1505J1-15 CONNECTOR B-B (1-15) R1466 QRE141J-102Y C RESISTOR...
Ref No. Ref No. Part No. Part Name Description Local Part No. Part Name Description Local C6404 QEHR1HM-335Z E CAPACITOR 3.3uF 50V M R6507 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J C6405 NCB31HK-102X C CAPACITOR 1000pF 50V K R6710 NRSA63J-222X MG RESISTOR 2.2kΩ...
Page 44
Ref No. Part No. Part Name Description Local D8733 MA3091/M/-X Z DIODE C8001 NCB31HK-391X C CAPACITOR 390pF 50V K C8002 NCB31HK-391X C CAPACITOR 390pF 50V K C8144 NCF31CZ-104X C CAPACITOR 0.1uF 16V Z C8145 NCF31CZ-104X C CAPACITOR 0.1uF 16V Z C8146 QEHR1CM-107Z E CAPACITOR 100uF 16V M...
PACKING [TM-A210G , TM-A210G PACKING PARTS LIST [TM-A210G , TM-A210G Ref.No. Part No. Part Name Description Local LC11194-005A-H PACKING CASE LC20989-001A-H CORNER LABEL (x2) CP11655-00C-H CUSHION ASSY 4 pcs in 1set QMP1110-244K POWER CORD 2m BLACK TM-A210G/U QPA01203005 POLY BAG 12cm x 30cm TM-A210G/U...
PACKING [TM-A210G PACKING PARTS LIST [TM-A210G Ref.No. Part No. Part Name Description Local LC11570-001A-C PACKING CASE LC20989-001A-H CORNER LABEL (x2) CP11655-00C-H CUSHION ASSY 4 pcs in 1set QMPS210-200-JC POWER CORD 2m BLACK CP30967-003-H POLY BAG CP30966-001-H POLY BAG ...
Page 47
TM-A210G , TM-A210G , TM-A210G CONTENTS SEMICONDUCTOR SHAPES ..............2-2 STANDARD CIRCUIT DIAGRAM BLOCK DIAGRAM ..................2-3 NOTE ON USING CIRCUIT DIAGRAMS CIRCUIT DIAGRAMS ..................2-5 1.SAFETY Type SIGNAL PWB CIRCUIT DIAGRAM ......................2-5 The components identified by the symbol and shading are No indication :Ceramic capacitor MAIN PWB CIRCUIT DIAGRAM ........................
BLOCK DIAGRAM AUDIO A AUDIO PWB IC8602 IC8601 AUDIO OUT AUDIO B AUDIO INPUT INPUT REMOTE ASPECT ASPECT ASPECT INPUT VIDEO A IC6732 SIGNAL PWB VIDEO A MEMORY IC6731 MICRO COMPUTER Q3301- Q3306 IC6202 IC6201 IC6205 VIDEO B MD6201 VIDEO COMB FILTER PROCESSOR CRT SOCKET...