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User manual SANYO VM6612P - SERVICE MANUAL
Diplodocs help download the user guide SANYO VM6612P - SERVICE MANUAL .
This product, although classified under the brand SANYO, may have been manufactured by AMOI, D-JIX, LOGICOM after mergers, acquisitions, or a change in name.
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Manual abstract: user guide SANYO VM6612P - SERVICE MANUAL
Detailed instructions for use are in the User's Guide. FILE NO.
SERVICE MANUAL
B/W Video Monitor
VM-6612
(Product Code : 114 901 21) (U.S.A, Canada)
VM-6612P
(Product Code : 114 901 24) (Europe) (Product Code : 114 901 26) (U.K.) (Product Code : 114 901 28) (Australia)
CONTENTS SPECIFICATIONS .................................................................... 3 1. OPERATING INSTRUCTIONS ............................................. 5 2. SERVICE ADJUSTMENTS ................................................... 7 3. PARTS LIST ......................................................................... 9 4. CIRCUIT DIAGRAMS ......................................................... 13
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.
L8MAB/US,XE,UK,AU
REFERENCE No.SM5310263
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"
Â2Â
SPECIFICATIONS VM-6612
System : Picture tube : Resolution : Scanning frewuency : Input terminals : VIDEO A VIDEO B Outout terminals : VIDEO A VIDEO B Sub Adjusting control : EIA standard 12 measured diagonally, 90° deflection angle More than 800 TV lines (center) Horizontal: 15.75 kHz (EIA), Vertical: 60 Hz (EIA) Composite video: 1 line, BNC connector, 1.0 V p-p 75 ohm negative sync Composite video: 1 line, BNC connector, 1.0 V p-p 75 ohm negative sync Composite video: 1 line, BNC connector, 1.0 V p-p 75 ohm negative sync Composite video: 1 line, BNC connector, 1.0 V p-p 75 ohm negative sync Sub bright volume Vertical size volume Vertical hold volume Manual switchable, Hi/ 75 ohm (Lo) Temperature: -10 °C to 40 °C, Humidity:10% to 90 % AC 100 to 240 V 50/60 Hz 30 Watts 304 x 320 x 310 mm 7.5 kg
Termination switch : Operating environment : Power source : Power consumption : Dimension (W x H x D ) : Weight :
VM-6612P
System : Picture tube : Resolution : Scanning frewuency : Input terminals : VIDEO A VIDEO B Outout terminals : VIDEO A VIDEO B Sub Adjusting control : CCIR standard 12 measured diagonally, 90° deflection angle More than 800 TV lines (center) Horizontal: 15.625 kHz (CCIR), Vertical: 50 Hz (CCIR) Composite video: 1 line, BNC connector, 1.0 V p-p 75 ohm negative sync Composite video: 1 line, BNC connector, 1.0 V p-p 75 ohm negative sync Composite video: 1 line, BNC connector, 1.0 V p-p 75 ohm negative sync Composite video: 1 line, BNC connector, 1.0 V p-p 75 ohm negative sync Sub bright volume Vertical size volume Vertical hold volume Manual switchable, Hi/ 75 ohm (Lo) Temperature: -10 °C to 40 °C, Humidity:10% to 90 % AC 100 to 240 V 50/60 Hz 30 Watts 304 x 320 x 310 mm 7.5 kg
Termination switch : Operating environment : Power source : Power consumption : Dimension (W x H x D ) : Weight :
Â3Â
W
D
H
Fig. 1
DISASSEMBLY
Fig. 2
Â4Â
1. OPERATING INSTRUCTIONS
1-1. FRONT PANEL CONTROLS
1. Monitor Selector Switch (VIDEO A/B)
Turn this Monitor selector switch A position for a signal fed through the rear panel VIDEO A connectors. Then, turn this Monitor selector switch B position for a signal fed through the rear panel VIDEO B connectors.
2. Contrast Control (
CONTRAST)
Turn to adjust picture contrast according to your requirement.
3. Brightness Control (
BIRGHT)
Turn to adjust picture brightness according to your requirement.
4. Power Indicator
Lights when the power is on. Lit: When the power is on. Unlit: When the power is off.
1
2
345
Fig. 3
5. Power Switch (POWER)
Press this switch to turn the power on or off.
1-2. REAR PANEL CONTROLS & CONNECTION
1. AC input socket (AC INPUT)
Connect the AC power cord (supplied) securely to this socket and to a wall outlet. However, the last monitor termination switch should be the 75 ohm position for proper line termination.
2. Video input terminals (VIDEO IN)
These terminals are used to input a video signal source to this monitor. Connect to the video output of a VCR or another monitor (for loop through connection) or to a video camera.
6. Sub-brightness control (SUB-BRI)
Turn to adjust picture brightness.
7. Vertical Size control (V-SIZE)
Turn to adjust picture vertical size of the picture.
8. Vertical hold control (V-HOLD) 3. Video output terminals (VIDEO OUT)
These terminals are used to output a video signal for this monitor. Loop-through output of the video in BNC connector, then connect to the video input of another monitor or a VCR. If the picture is scrolling up or down on the screen, turn this control until there is a single steady picture.
4. Termination Switch (HI/75 (Lo))
Select the input impedance (HI/75 ohm). When using only one monitor, turn the termination switch to the 75 ohm position. When using more than one monitor, set all of the termination switch to the monitors to the HI position.
Â5Â
1
4
2
Fig. 4
3
68 7
Single Connection
To Video B INPUT terminal (Video signal cable) Monitor To Video A INPUT terminal (Video signal cable) Video recorder To Video input terminal To Video input terminal Video recorder Video camera (Rear panel)
Monitor
Fig. 5
Coaxial cable To Video input terminal
Monitor
Video recorder
Video camera
Fig. 6
Â6Â
2. SERVICE ADJUSTMENTS
ADJUSTMENT ITEM
VERTICAL LINEARITY ADJUSTMENT HORIZONTAL HOLD ADJUSTMENT GEOMETRICE DISTORTION PATTERN ADJUSTMENT VIDEO CENTERING ADJUSTMENT VIDEO TILT ADJUSTMENT
TIMING PATTERN
SETTING
VR LOCATION
VR303
ADJUSTMENT PROCEDURE
Adjust VR303 to make equal distance between top-center and bottom-center.
CONTRAST VR PATTERN GENERATOR MODE CROSS-HATCHED AND BRIGHT VR TO CENTER. PATTERN CONTRAST VR PATTERN GENERATOR MODE CROSS-HATCHED AND BRIGHT VR TO CENTER. PATTERN CONTRAST VR PATTERN GENERATOR MODE CROSS-HATCHED AND BRIGHT VR TO CENTER. PATTERN
VR401
Turn off horizontal sync. (pin to ground) Adjust VR401 to make pattern upright.
Adjust eigth magnets on the deflection yoke make picture to the best condition.
PATTERN GENERATOR MODE MONOSCPE PATTERN
CONTRAST VR AND BRIGHT VR TO CENTER.
The video is centered by roating the two small at the rear of the yoke.
CONTRAST VR PATTERN GENERATOR MODE CROSS-HATCHED AND BRIGHT VR TO CENTER. PATTERN PATTERN GENERATOR MODE MONOSCPE PATTERN CONTRAST VR AND BRIGHT VR TO CENTER. L402
Loosen the screw on the rear of deflection yoke, rotating the yoke to correct position tighten the screw. Adjust L402 to make picture width within "2" position.
HORIZONTAL WIDTH ADJUSTMENT
VERTICAL SIZE ADJUSTMENT VERTICAL HOLD ADJUSTMENT NTERLACE ADJUSTMENT
PATTERN GENERATOR MODE MONOSCPE PATTERN PATTERN GENERATOR MODE MONOSCPE PATTERN CAMERA SIGNAL
CONTRAST VR AND BRIGHT VR TO CENTER. CONTRAST VR AND BRIGHT VR TO CENTER. CONTRAST VR AND BRIGHT VR TO CENTER. CONTRAST VR AND BRIGHT VR TO MAX.
VR302
Adjust VR302 make height to "1.5" position.
VR301
Adjust VR301 to make pattern stop rolling.
VR301
Adjust VR301 have gap of vertical scan line distinguish clearly.
RASTER ADJUSTMENT
DISCONNECT VIDEO SIGNAL AND PATTERN GENERATOR MODE FULL-WHITE PATTERN PATTERN GENERATOR MODE MONOSCPE PATTERN
VR402
Adjust VR402 to the suitable brightness.
FOCUS ADJUSTMENT
CONTRAST VR AND BRIGHT VR TO CENTER.
VR404
Adjust VR404 have control picture and 4 corners to be distinguished.
1 3 5
1 3 5
1357 5 3 1 5 3 1
7531
Fig. 7
Â7Â
MAIN BOARD (Foil side)
VR402 SUB-BRITE
VR301 VR302 V-HOLD V-SIZE
VR404 FOCUS
T402
L402 T901 E C B VR301 V-LINE VR401 H-HOLD Q403
Fig. 8
MAIN BOARD
VR BOARD (Foil side)
VR BOARD
SW901 LED1
VR201 VR406 BRIGHTNESS CONTRAST
SW202 CHANNEL
Fig. 9
Â8Â
3. PARTS LIST
Note: Alphabetic caracters enclosed by ( ) in the descriptions indicate destination for the VM-6612P. VM-6612P(AU): Australia VM-6612P(XE): Europe VM-6612P(UK): United Kingdom VM-6612: NTSC area (U.S.A., Canada)
LOCATION PARTS NO. DESCRIPTION LOCATION PARTS NO. 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 645 034 3582 645 034 3841 645 034 4299 645 046 5970 645 034 3612 645 046 0401 645 046 0418 645 046 6342 645 034 3605 645 034 3926 645 034 4657 645 035 6216 645 046 6502 645 046 6410 645 034 3582 645 035 9422 645 035 9415 645 038 5599 645 034 3575 645 035 6223 645 046 4942 645 046 4898 645 047 9519 645 047 9502 645 046 0500 DESCRIPTION PH W/W SCR. 4*8MM ID LABEL 83*51MM (N.S.P) PCB GUIDE RAIL MM-12A FBT TRANS. MM-12A (T402) (Included in the MAIN board) SCREW+WASHER 3*6MM BNC CONNECTOR BNC 13-28 75OHM SLIDE SWITCH SS004-P012BJ-PA6 (SW201)(Included in the MAIN board) BASE MM-12AA-51 RH W/W SCR. 3*8MM FOOT PAD RIVET MM-12A GL-24H FOOT PAD GL-24H BH SCREW 4*6MM AC SOCKET ASS'Y MM-12A JACK PLATE MM-12S AA-51 PH W/W SCR. 4*8MM PCB HOLDER CM-14A PCB HOLDER CM-14A SHRINK TUBE 2.5DIA. (N.S.P.) PH W/W SCR. 3*8MM WASHER OUT TEETH 4.5*8.5*0.5MM BNC WASHER BNC NUT MAIN BOARD VIDEO BOARD LED LENS MT-9/12/15/20
CABINET AND CHASSIS PARTS
1 1 2 2 3 3 4 4 5 6 7 8 OR 9 10 11 12 13 14 15 645 046 5208 645 047 0653 645 046 0432 645 047 0547 645 046 0487 645 047 0622 645 046 0494 645 047 0639 645 046 6489 645 034 3810 645 034 3605 645 046 5895 645 046 5888 645 046 6045 645 046 6199 645 046 6205 645 034 3599 645 046 5406 645 046 6335 645 034 3582 FRONT PANEL MT-12S OC-00067 [VM-6612, VM-6612P(UK)] FRONT PANEL MT-12S AA-51 [VM-6612P(AU), (XE)] LOGO MT-9AL OC-00067 [VM-6612, VM-6612P(UK)] LOGO MT-9 AL AA-51 [VM-6612P(AU),(XE)] VR KNOB VR MT-9 OC-00067 [VM-6612, VM-6612P(UK)] VR KNOB VR MT-9 AA-51 [VM-6612P(AU), (XE)] SW KNOB MT-9 OC-00067 [VM-6612, VM-6612P(UK)] SW KNOB MT-9 AA-51 [VM-6612P(AU), (XE)] VR ASS'Y MT-12S POWER SWITCH SS-160-7 (Included in the VR A'SSY) RH W/W SCR. 3*8MM CRT MI1237P4AU2 CPT CRT C12M49PW7G-PB SANJIN YOKE MM-12A L TYPE MM-12A L TYPE MM-12A PH W/W SCR. 4*18MM CRT GND WIRE/1015 22AWG METAL CABINET MM-12 AA-51 PH W/W SCR. 4*8MM
1 2 4 3 8 9 10 12 13 11 40
N.S.P.: Not available as service parts.
14 5 6 7 18 39
15
16 17
19 31 20 38 23 24 34 26 25 22 37 27 35 28 21
3233
36
29 30
VM-6612
9
ELECTRICAL PARTS
Note: 1. Materials of Capacitors and Resistors are abbreviated as follows ; Resistors Capacitors CF RES Carbon Film Resistor MEF CAP MF RES Metal Film Resistor MOF RES Metallized Oxide Film Resistor MEMB CAP PEI CAP PPN CAP PPS CAP MPP CAP X CAP(MKP) CC CAP EC CAP 2. N.S.P. : Not available as service parts.
LOCATION PARTS NO. DESCRIPTION LOCATION PARTS NO. C923 C924 D301 D401 D402 OR D403 OR D404 D405 D406 D408 D408 D901 D902 D903 D904 D905 D906 D906 D910 D910 D914 OR D915 ZD901 F901 IC301 IC401 IC901 L401 OR OR L402 OR OR L403 L905 OR OR Q205 OR Q401 Q402 Q403 Q405 Q406 Q901 DESCRIPTION
Metallized Polyester Film Capacitor (Non-inductive) Mini Box Metallized Polyester Capacitor (Non-inductive) Polyester Film Capacitor (Inductive) Polypropylene Film Capacitor (Non-inductive) Polypropylene and Metallized Polypropylene Film Capacitor (Non-i ...
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