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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 .......................................................
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Notice CORRECTION PRODUCTION CHANGE SERVICE FLASH ADD INFORMATION FILE No. Please add this notice to the service manual listed below. Category: Color Video Monitor Date :Jun.4.2004 Model Name Reference No. Destination VMC-8613B SM5310559 U.S.A, Canada The reason of change. A : Misprint B : Quality Reliability C : Standardization D : Design E : Deletion F : Addition G : Multiple Use PRINTED WIRING BOARDS (P.W.B.) (VIEW FROM SOLDER SIDE) FUNCTION P.W.B. The figure of FUNCTION P.W.B. on
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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 3. Before returning the set to the customer, always perform an special safety-related characteristics for providing protec- AC leakage current check on the exposed metallic parts of tion against shock, fire and other hazards.
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SPECIFICATIONS Color system : PAL/NTSC, selected automatically Picture tube : 13 incht Resolution : More than 750 TV lines Input terminals : Separate Y/C signal, mini-DIN 4-pin connector (1) Y signal: 1.0 Vp-p, 75 Ω negative sync C signal: 0.286 Vp-p, 75 Ω negative sync, bridge connection possible Composite sync signal: 1.0 Vp-p, 75 Ω BNC connector (2) Audio signal: -6dBs (400 mVrms), RCA pin (3), bridge connection possible Outout terminals : Separate Y/C signal, mini-DIN 4-pin connecto
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1. OPERATING INSTRUCTIONS 1-1. FRONT PANEL CONTROLS 24 5 6 7 8 9 10 3 1 1 1 Fig. 2 1. Speaker ment screen. If the button is pressed once more, the When the monitor selector button (A, B or Y/C) is picture returns to the previous screen. pressed, the speaker lets you hear the sound from the components which are connected to the termi- 6. Automatic screen selector button nals at the rear of the monitor. (Use components (SEQUENCE) which produce audio output.) When this button is press
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1-2. REAR PANEL CONTROLS & CONNECTION 23 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
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2. DISASSEMBLY 2-1. REMOVAL OF CABINET Fig. 5 2-2. BOARD LOCATION VIDEO BOARD SIGNAL BOARD FUNCTION BOARD MAIN BOARD Fig. 6 – 6 –
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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 VR TIMING ADJUSTMENT PROCEDURE SETTING ITEM LOCATION PATTERN PATTERN GENERATOR CHECK B+ TEST POINT : D910(-) MONOSCOPE PATTERN VOLTAGE DIGITA
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ADJUSTMENT VR TIMING ADJUSTMENT PROCEDURE SETTING ITEM LOCATION PATTERN If screen slant and adjust DY to be not BRIGHT VR , TILT ADJUST- PATTERN GENERATOR slant. MENT CONTRAST VR MONOSCOPE PATTERN and SHARPNESS VR TO MAX. VR801,VR803, Adjust VR803 G-Bias to center. BRIGHT VR , WHITE BAL- PATTERN GENERATOR VR805, Adjust FBT screen VR make luminance ANCE AD- CONTRAST VR NO SIGNAL FBT FOCUS without video to 0.7 ~ 1.5 FL. JUSTMENT and SHARPNESS VR VR TO MAX. Adjust VR801 make X value is 0.281 ± 0.
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MAIN BOARD (Parts side) VR503 X-RAY ZD501 12 11 VR502 VR401 ABL 10 9 8 H-PHASE 7 6 5 IC202 4 1 VR501 3 1 2 ABL T502 VR303 V-CENT IC301 VR304 1 PIN VR302 VR301 V-LIN V-SIZE F901 T902 D910 Fig. 7 VIDEO BOARD FUNCTION BOARD (Parts side) (Parts side) LED101 VR804 S103 S107 S102 S105 B-GAIN VR805 B-BAIS S101 S108 S106 S104 VR801 R-BAIS VR802 R-GAIN G2 KG Fig. 9 KR G1 H H VR803 KB G-BAIS NC GND Fig. 8 – 9 –
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4. PARTS LIST LOCATION PARTS NO. DESCRIPTION LOCATION PARTS NO. DESCRIPTION 25 645 034 3582 PH W/W SCR. 4*8MM CABINET & CHASSIS PARTS 26 ID LABEL 83*51MM (N.S.P.) 1 645 048 3509 FRONT PANEL 14" AA-51 27 645 048 3677 MAIN BOARD VMC-8613/8614P 2 645 067 9902 DIGITAL VMC-8613B 28 645 034 3612 SCREW+WASHER 3*6MM 3 645 048 3516 CONTROL PANEL 14" AA-51 29 645 046 5772 PURST LOCK A-11 4 645 048 3493 SW KNOB 19" AA-51 30 645 034 4268 F.B.T CLIP HV-1 5 645 046 6465 SW ASS’Y CH-14DXA 31 645 046 0722 PCB G
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ELECTRICAL PARTS Note: 1. Materials of Capacitors and Resistors are abbreviated as follows ; Resistors Capacitors CF RES Carbon Film Resistor MEF CAP Metallized Polyester Film Capacitor MF RES Metal Film Resistor (Non-inductive) MOF RES Metallized Oxide Film Resistor MEMB CAP Mini Box Metallized Polyester Capacitor (Non-inductive) PEI CAP Polyester Film Capacitor (Inductive) PPN CAP Polypropylene Film Capacitor (Non-inductive) PPS CAP Polypropylene and Metallized Polypropylene Film C
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LOCATION PARTS NO. DESCRIPTION LOCATION PARTS NO. DESCRIPTION C225 645 034 2738 EC CAP 2.2UF 50 V C929 645 034 2837 CC CAP 104PF 50V Y5V C226 645 034 3049 MEMB CAP .47UF 63V +/-5% C930 645 034 2653 EC CAP 1000UF 16V 10DIA C227 645 048 3301 EC CAP 220UF 10 V C931 645 034 2783 EC CAP 470UF 16 V C228 645 048 3301 EC CAP 220UF 10 V C932 645 034 2837 CC CAP 104PF 50V Y5V C229 645 034 2776 EC CAP 47UF 16 V (DIODES) C230 645 034 2837 CC CAP 104PF 50V Y5V D101 645 034 3315 DIODE 1N4148 C231 645 034 2936
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LOCATION PARTS NO. DESCRIPTION LOCATION PARTS NO. DESCRIPTION L904 645 046 0876 CHOKE COIL 20 UH +/-20% R167 645 046 2191 CF RES 10 KOHM 1/6W +/-5% (SEMICONDUCTORS) R168 645 046 2788 CF RES 4.7 KOHM 1/6W +/-5% Q101 645 034 3216 TR 2SC1815GR R231 645 046 2481 CF RES 22 KOHM 1/6W +/-5% Q102 645 034 3216 TR 2SC1815GR R232 645 046 2320 CF RES 15 KOHM 1/6W +/-5% Q103 645 034 3216 TR 2SC1815GR R233 645 034 1854 CF RES 1 KOHM 1/6W +/-5% Q105 645 034 3216 TR 2SC1815GR R234 645 046 2900 CF RES 5.6 KOHM 1
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LOCATION PARTS NO. DESCRIPTION LOCATION PARTS NO. DESCRIPTION R912 645 046 2344 CF RES 16 KOHM 1/6W +/-5% S106 645 046 5093 LIGHT TOUCH SWITCH EVQ21305R R913 645 046 2276 CF RES 1.2 KOHM 1/6W +/-5% S107 645 046 5109 TACT SWITCH TSP620-1150 R914 645 046 2191 CF RES 10 KOHM 1/6W +/-5% OR 645 046 5093 LIGHT TOUCH SWITCH EVQ21305R R915 645 046 2757 CF RES 47OHM 1/6W +/-5% S108 645 046 5109 TACT SWITCH TSP620-1150 R916 645 046 2894 CF RES 560OHM 1/6W +/-5% OR 645 046 5093 LIGHT TOUCH SWITCH EVQ21305R
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LOCATION PARTS NO. DESCRIPTION R202 645 046 2467 CF RES 220OHM 1/6W +/-5% R203 645 046 2467 CF RES 220OHM 1/6W +/-5% R204 645 046 3006 CF RES 680 KOHM 1/6W +/-5% R205 645 046 2474 CF RES 2.2 KOHM 1/6W +/-5% R206 645 034 1854 CF RES 1 KOHM 1/6W +/-5% R207 645 034 1854 CF RES 1 KOHM 1/6W +/-5% R208 645 046 2467 CF RES 220OHM 1/6W +/-5% R209 645 046 2788 CF RES 4.7 KOHM 1/6W +/-5% R210 645 034 2349 CF RES 75OHM 1/6W +/-5% R211 645 046 2191 CF RES 10 KOHM 1/6W +/-5% R212 645 046 2191 CF RES 10 KOHM
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CIRCUIT DIAGRAMS & PRINTED WIRING BOARDS TABLE OF CONTENTS BLOCK DIAGRAM & CIRCUIT DIAGRAMS Page OVERALL WIRING ........................................................................................................................................... C3 BLOCK DIAGRAM ............................................................................................................................................ C3 MAIN & FUNCTION BOARDS CIRCUIT DIAGRAM ...............................................
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PRODUCT SAFETY NOTICE THE COMPONENTS DESIGNATED BY A SYMBOL ( ) IN THIS SCHEMATIC DIAGRAM DESIGNATES COMPONENTS WHOSE VALUE ARE OF SPECIAL SIGNIFICANCE TO PRODUCT SAFETY. SHOULD ANY COMPONENT DESIGNATED BY A SYMBOL NEED TO BE REPLACED, USE ONLY THE PART DESIGNATED IN THE PARTS LIST. DO NOT DEVIATE FROM THE RESISTANCE, WATTAGE AND VOLT- AGE RATINGS SHOWN. C2
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BLOCK DIAGRAM & CIRCUIT DIAGRAMS K K BLOCK DIAGRAM OVERALL WIRING J J CTLB CTLA IC701(SIGNAL) 3 2 IC701(MAIN) IN A 1 SP RCA701 3 6,8 4 8 IN B RCA703 AMP VIDEO BOARD IN Y/C 6 CRT RCA705 W801 W802 5 VOL TINT I H-DY & V-DY I VIDEO PROCESS CTLB CTLA BNC201 TDA8361 IC202 IC201 B201 B501 P401 2 3 27 34 35 V IN (VIDEO) B901 4 AC IN A W702 SYNC 6 8 XTAL HUE PHASE BNC202 R,G,B SEP (MAIN) R/G/B 1 OSCILATOR CONTROL DETECTOR CRT DRIVE AMP Q203, IC203 MAIN BOARD B903 Q206 (SIGNAL) 16 H H CHEOMINANCE COLOR A
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MAIN & FUNCTION BOARDS CIRCUIT DIAGRAM K K AC SWITCH SW901 ! VIDEO PROCESS 1 52 +24V MAIN BOARD R934 AUDEEM DEC BG C919 470 ohm C239 C240 R313 ! 222pF R312 R309 3W 223pF 2.2uF D301 1.8 ohm F901 B902 Q303 100 ohm 100 ohm B901 2KV 2 51 ! R902 D910 IFDEM1 DEC DEM 50V 1N4003 2W 3.15A/250V 100V 1W 1/2W AC IN ! 1 ohm CC UF5402G L901 2SD667C P401B ! ! D914 ! T901 T902 PEI 1W BYT52M 20uH B+ 1 9 3 50 4 C903 IFDEM2 AUOUT R307 ! C312 C316 R901 C901 C902 472pF C917 10K ZR901 R923 1 8 100uF 47uF 3 560K 0.1u
