FILE NO. SERVICE MANUAL Color Video Monitor VMC-8613B (Product Code : 114 952 23) (U.S.A, Canada) CONTENTS SPECIFICATIONS .................................................................... 3 1. OPERATING INSTRUCTIONS ............................................. 4 2. DISASSEMBLY ..................................................................... 6 3. SERVICE ADJUSTMENTS ................................................... 7 4. PARTS LIST ....................................................................... 10 CIRCUIT DIAGRAMS & PRINTED WIRING BOARDS ........... C1 NOTE: 1. Parts order must contain model number, part number, and description. 2. Substitute parts may be supplied as the service parts. 3. N.S.P. : Not available as service parts. Design and specifications are subject to change without notice. L8MW5/US2 REFERENCE No.SM5310559 Notice CORRECTION SERVICE FLASH PRODUCTION CHANGE ADD INFORMATION FILE No. Date :Jun.4.2004 Please add this notice to the service manual listed below. Category: Color Video Monitor Model Name Reference No. Destination VMC-8613B The reason of change. A : Misprint E : Deletion B : Quality Reliability F : Addition SM5310559 U.S.A, Canada C : Standardization G : Multiple Use D : Design PRINTED WIRING BOARDS (P.W.B.) (VIEW FROM SOLDER SIDE) FUNCTION P.W.B. The figure of FUNCTION P.W.B. on C6-page of SM5310559 is a misprint. So, please use this figure. L8MW5/US2 114 952 23 SANYO Electric Co., Ltd. Osaka,Japan Reference No. SM5310559-01 SAFETY PRECAUTIONS WARNING: Service should not be attempted by anyone unfamiliar with the necessary precautions for this recording or playback equipment. The following precautions are necessary during servicing: 1. Many electrical and mechanical parts in this recorder have special safety-related characteristics for providing protection against shock, fire and other hazards. These characteristics often go unnoticed in a visual inspection, and the protection afforded by them cannot necessarily be obtained by using replacement components with higher ratings (voltage, wattage, etc.). Replacement parts having special safety-related characteristics are identified in this manual, and in the schematic diagrams, by the symbol ! . These components have values that are of special significance to product safety. Should any component (identified by the symbol ) need to be replaced, use only the part designated in the parts List. Do not deviate from the specified resistance, wattage, and voltage ratings. 3. Before returning the set to the customer, always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as terminals, screwheads, metal overlays, etc. to be sure that the set is safe to operate without the danger of electrical shock, Plug the AC line cord directly into a 120 V AC outlet. (Do not use a line isolation transformer during this check.) Use an AC voltmeter with a sensitivity of 5000 ohms per volt (or more) as follows: Connect a 1500 ohms, 10 watt resistor, paralleled by a 0.15 mfd, 150 VAC capacitor, between a known good earth ground (water pipe, conduit, etc.) and the exposed metallic parts, one at a time. Measure the AC voltage across the 1500 ohms resistor and 0.15 mfd capacitor combination. Reverse the AC plug at the AC outlet and repeat the AC voltage measurements for each exposed metallic part. The measured voltage must not exceed 300 mVrms. This corresponds to 200 µA AC. Any value exceeding this limit constitutes a potential shock hazard and must be corrected immediately. Fuse symbol marks. For CANADA 2. 4. Video Monitor For U.S.A. Fuse rating is marked at adjacent fuse. UNDERWRITERS LABORATORIES Standard CAUTION "Risk of fire-replace fuse as marked" ­2­ SPECIFICATIONS Color system : Picture tube : Resolution : Input terminals : PAL/NTSC, selected automatically 13 incht More than 750 TV lines Separate Y/C signal, mini-DIN 4-pin connector (1) Y signal: 1.0 Vp-p, 75 negative sync C signal: 0.286 Vp-p, 75 negative sync, bridge connection possible Composite sync signal: 1.0 Vp-p, 75 BNC connector (2) Audio signal: -6dBs (400 mVrms), RCA pin (3), bridge connection possible Separate Y/C signal, mini-DIN 4-pin connector (1) Y signal: 1.0 Vp-p, 75 negative sync C signal: 0.286 Vp-p, 75 negative sync, bridge connection possible Composite sync signal: 1.0 Vp-p, 75 BNC connector (2), automatic temination setting Audio signal: -6dBs (400 mVrms), RCA pin (3), bridge connection possible 1W Variable round x 1 100 to 240 V AC, 50/60 Hz 82 Watts -10 °C to 45 °C storage temperature 10 % to 90 % 350 x 350 x 360 mm 14kg Outout terminals : Audio output : Speaker : Power source : Power consumption : Ambient operating temperature : Ambient operating humidity : Dimension (W x H x D ) : Weight : W D H Fig. 1 ­3­ 1. OPERATING INSTRUCTIONS 1-1. FRONT PANEL CONTROLS 2 45 6 78 9 10 3 11 1 Fig. 2 1. Speaker When the monitor selector button (A, B or Y/C) is pressed, the speaker lets you hear the sound from the components which are connected to the terminals at the rear of the monitor. (Use components which produce audio output.) 2. On-screen display button (OSD) When this button is pressed, the menu screen appears on the monitor screen. 1.COLOR 2.TINT 3.BRIGHTNESS 4.CONTRAST 5.SHARPNESS 3. Cursor ( 6.VOLUME 7.DWELL TIME 8.LANGUAGE 9.TITLE 10.VERSION ment screen. If the button is pressed once more, the picture returns to the previous screen. 6. Automatic screen selector button (SEQUENCE) When this button is pressed, the screen changes automatically to the picture from the components which are connected to the terminals at the rear of the monitor. 7. Monitor A selector button (A) When this button is pressed, the audio and video input changes to the component which is connected to the A terminals at the rear of the monitor. 8. Monitor B serector button (B) When this button is pressed, the audio and video input changes to the component which is connected to the B terminals at the rear of the monitor. 9. Monitor Y/C selector button (Y/C) When this button is pressed, the audio and video input changes to the component which is connected to the Y/C terminals at the rear of the monitor. 10. Power indicator (POWER) Lights when the power is on. 11. Power button (POWER) Press this button to turn the power on and off. ) button ( ) When this button is pressed, the cursor moves down. When it reaches the bottom, it reappears at the top. In addition, this button is used to make adjustment values smaller. 4. Cursor ( ) button ( ) When this button is pressed, the cursor moves up. When it reaches the top, it reappears at the bottom. In addition, this button is used to make adjustment values larger. 5. Display selector button (ENTER) If this button is pressed while a picture is on the monitor screen, the screen changes to the adjust- ­4­ 1-2. REAR PANEL CONTROLS & CONNECTION 2 3 4 1 Fig. 3 1. AC INPUT socket Connect the AC power cord (supplied) securely to this socket and to a wall outlet. 2. Rear A terminals (AUDIO/VIDEO A terminals) When the monitor A selector button at the front of the monitor is pressed, the audio and video signals from the component which is connected to these terminals can be monitored. 3. Rear B terminals (AUDIO/VIDEO B terminals) When the monitor B selector button at the front of the monitor is pressed, the audio and video signals from the component which is connected to these terminals can be monitored. 4. Rear Y/C terminals (AUDIO/VIDEO Y/C terminals) When the monitor Y/C selector button at the front of the monitor is pressed, the audio and video signals from the component which is connected to these terminals can be monitored. Y/C (Mini DIN 4 pin) terminal specification 4 2 4 2 IN OUT 3 1 3 1 Pin No. 1 2 3 4 Signal GND (Y) GND (C) Y C Fig. 4 ­5­ 2. DISASSEMBLY 2-1. REMOVAL OF CABINET Fig. 5 2-2. BOARD LOCATION VIDEO BOARD SIGNAL BOARD FUNCTION BOARD MAIN BOARD Fig. 6 ­6­ 3. SERVICE ADJUSTMENTS 1. Supply power to the set and measuring instruments and allow to warm up for at least 30 minutes. NOTE Be sure to use a non-metallic driver for adjusting there VRs. A metallic driver can cause damage by shorting. Adjustment tool 1. Digital multi meter 2. Pattern generator 3. Color analyzer Adjustment mode Over scan mode ADJUSTMENT ITEM CHECK B+ VOLTAGE TIMING PATTERN PATTERN GENERATOR MONOSCOPE PATTERN SETTING VR LOCATION ADJUSTMENT PROCEDURE TEST POINT : D910(-) DIGITAL VOLT METER VALUE 46.0 ± 0.5 VDC. HOLD DOWN VOLTAGE SETTING PATTERN GENERATOR MONOSCOPE PATTERN BRIGHT VR , CONTRAST VR and SHARPNESS VR TO MAX. BRIGHT VR , CONTRAST VR and SHARPNESS VR TO MAX. BRIGHT VR , CONTRAST VR and SHARPNESS VR TO MAX. BRIGHT VR , CONTRAST VR and SHARPNESS VR TO MAX. VR503 TEST POINT : ZD501(-) DIGITAL VOLT METER VALUE 8.5 ± 0.2 VDC. FOCUS ADJUSTMENT PATTERN GENERATOR MONOSCOPE PATTERN FBT FOCUS VR Adjusting FBT FOCUS VR to make csreen corner & center focus be identical. HORIZONTAL PHASE ADJUSTMENT PATTERN GENERATOR MONOSCOPE PATTERN VR401 Adjusting VR401 horizontal phase to make screen right and left symmetrize. VERTICAL LINEARY ADJUSTMENT PATTERN GENERATOR MONOSCOPE PATTERN VR302 Adjusting vertical linear control VR302 for equal spacing of lines between center extreme of scan. PINCUSHION ADJUSTMAN BRIGHT VR , PATTERN GENERATOR CROSS HATCH PATTERN CONTRAST VR and SHARPNESS VR TO MAX. PATTERN GENERATOR MONOSCOPE PATTERN BRIGHT VR , CONTRAST VR and SHARPNESS VR TO MAX. BRIGHT VR , CONTRAST VR and SHARPNESS VR TO MAX. VR304 Adjusting VR304 to make pincushion distortion be identical. VERTICAL CENTER ADJUSTMENT VR303 Adjusting VR303 to make screen up & down symmetrize. VERTICAL SIZE ADJUSTMENT PATTERN GENERATOR MONOSCOPE PATTERN VR301 Adjusting VR301 to make screen V-size to level wide3/4. ­7­ ADJUSTMENT ITEM TILT ADJUSTMENT TIMING PATTERN PATTERN GENERATOR MONOSCOPE PATTERN SETTING BRIGHT VR , CONTRAST VR and SHARPNESS VR TO MAX. BRIGHT VR , CONTRAST VR and SHARPNESS VR TO MAX. VR LOCATION ADJUSTMENT PROCEDURE If screen slant and adjust DY to be not slant. WHITE BALANCE ADJUSTMENT PATTERN GENERATOR NO SIGNAL VR801,VR803, VR805, FBT FOCUS VR Adjust VR803 G-Bias to center. Adjust FBT screen VR make luminance without video to 0.7 ~ 1.5 FL. Adjust VR801 make X value is 0.281 ± 0.015. Adjust VR805 make Y value is 0.298 ± 0.015. PATTERN GENERATOR FULL WHITE VR804,VR802, Adjust VR501 make luminance with video BRIGHT VR , VR501 signal to 50 FL. CONTRAST VR Adjust VR804 make X value is 0.281 ± and SHARPNESS 0.015. VR TO MAX. Adjust VR802 make Y value is 0.298 ± 0.015. Dark, bright balance, repeat to adjust correctly X, Y value & luminance to constant. FBT SCREEN BRIGHT VR , VR CONTRAST VR and SHARPNESS VR TO MAX. VR501 BRIGHT VR , CONTRAST VR and SHARPNESS VR TO MAX. VR502 BRIGHT VR , CONTRAST VR and SHARPNESS VR TO MAX. Adjust FBT screen VR make luminance without video signal is 0.7 ~ 1.5 FL. LUMINANCE ADJUSTMENT PATTERN GENERATOR NO SIGNAL PATTERN GENERATOR WINDOWS PATTERN Adjust VR501 make luminance is 45 ~ 50 FL. PATTERN GENERATOR FULL WHITE Adjust VR502 make luminance is 97 ± 2 FL. Then make sure Full White luminance whether it is 45 ~ 50 FL. The way of adjusting it which a color analyzer is not used for. ADJUSTMENT ITEM WHITE BALANCE ADJUSTMENT and LUMINANCE ADJUSTMENT TIMING PATTERN PATTERN GENERATOR NO SIGNAL SETTING BRIGHT VR , CONTRAST VR and SHARPNESS VR TO MAX. VR LOCATION VR801,VR802, VR803,VR804, VR805, FBT SCREEN VR ADJUSTMENT PROCEDURE VR801,VR802,VR803,VR804 and VR805 is center position. Adjust the VR801, VR805 and FBT SCREEN VR to dark gray with screen. PATTERN GENERATOR FULL WHITE VR804,VR802, Adjust the VR802 and VR804 to white BRIGHT VR , VR501 gray with screen. CONTRAST VR Adjust the VR501 it makes the screen of and SHARPNESS the monitor proper brightness. VR TO MAX. ­8­ MAIN BOARD (Parts side) VR503 X-RAY VR401 H-PHASE IC202 1 1 2 3 ZD501 VR502 ABL 12 10 9 8 7 11 6 5 4 VR501 ABL VR303 V-CENT IC301 1 T502 VR304 PIN VR301 V-SIZE VR302 V-LIN T902 D910 F901 Fig. 7 VIDEO BOARD (Parts side) VR804 B-GAIN VR805 B-BAIS VR801 R-BAIS VR802 R-GAIN VR803 G-BAIS FUNCTION BOARD (Parts side) S105 S103 S102 S107 S106 LED101 S108 S101 S104 G2 KG KR G1 H H KB NC GND Fig. 9 Fig. 8 ­9­ 4. PARTS LIST LOCATION PARTS NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 645 048 3509 645 067 9902 645 048 3516 645 048 3493 645 046 6465 645 046 6724 645 046 4829 645 034 3605 645 048 3486 645 046 6441 645 034 3605 645 046 4874 645 040 9349 645 038 5605 645 038 5582 645 034 4428 645 034 3650 645 046 6250 645 046 6243 645 046 4836 645 034 3599 645 046 6649 645 046 6366 645 034 3919 DESCRIPTION FRONT PANEL 14" AA-51 DIGITAL VMC-8613B CONTROL PANEL 14" AA-51 SW KNOB 19" AA-51 SW ASS'Y CH-14DXA FUNCTION BOARD VMC-8613/8614P PH SCREW 3*8MM RH W/W SCR. 3*8MM SPEAKER PANEL 19" AA-51 SPEAKR S9711-22NQ4171C 8OHM/1W RH W/W SCR. ...