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SERVICE MANUAL
REVISED
SPECIFICATIONS
Picture tube
0.25 – 0.27 mm aperture grille pitch
21 inches measured diagonally
90-degree deflection
Approx. 403.8 × 302.2 mm (w/h)
Viewable image size
(16 × 12 inches)
19.8" viewing image
Resolution
Horizontal: Max. 1600 dots
Vertical: Max. 1200 lines
Approx. 388 × 291 mm (w/h)
Standard image area
3
(15
or
Approx. 364 × 291 mm (w/h)
(14
3
Deflection frequency
Horizontal: 30 to 107 kHz
Vertical: 48 to 160 Hz
AC input voltage/current
100 to 240 V, 50 – 60 Hz, 2.0 – 1.0 A
Power consumption
Max. 160 W
498 × 505 × 474 mm (w/h/d)
Dimensions
5
(19
Mass
Approx. 31 kg (68 lb 5 oz)
Design and specifications are subject to change without notice.
GDM-5001PT
Canadian Model
N.Hemisphere Model
× 11
1
/
/
inches)
8
2
× 11
/
1
/
inches)
8
2
× 20 × 18
3
/
/
inches)
8
4
COLOR GRAPHIC DISPLAY
US Model
AEP Model
Chassis No. SCC-L04D-A
N3
CHASSIS
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Related Manuals for VarTech Systems GDM-5001PT
Summary of Contents for VarTech Systems GDM-5001PT
- Page 1 GDM-5001PT SERVICE MANUAL US Model Canadian Model REVISED N.Hemisphere Model AEP Model Chassis No. SCC-L04D-A CHASSIS SPECIFICATIONS Picture tube 0.25 – 0.27 mm aperture grille pitch 21 inches measured diagonally 90-degree deflection Approx. 403.8 × 302.2 mm (w/h) Viewable image size (16 ×...
- Page 2 GDM-5001PT SAFETY CHECK-OUT (US Model only) After correcting the original service problem, perform the fol- LEAKAGE TEST lowing safety checks before releasing the set to the customer: The AC leakage from any exposed metal part to earth ground 1. Check the area of your repair for unsoldered or poorly-sol- and from all exposed metal parts to any exposed metal part hav- dered connections.
- Page 3 GDM-5001PT POWER SAVING FUNCTION This monitor meets the power-saving guidelines set by VESA and Note Energy Star, as well as the more stringent NUTEK . If no video signal is input to the monitor, the “NO INPUT SIG- If the monitor is connected to a computer or video graphics board NAL”...
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Page 4: Timing Specification
GDM-5001PT TIMING SPECIFICATION MODE AT PRODUCTION MODE 1 RESOLUTION 1600 X 1200 CLOCK 229.500 MHz — HORIZONTAL — H-FREQ 106.250 kHz usec H. TOTAL 9.412 H. BLK 2.440 H. FP 0.279 H. SYNC 0.837 H. BP 1.325 H. ACTIV 6.972 —... -
Page 5: Table Of Contents
GDM-5001PT TABLE OF CONTENTS Section Title Page 1. GENERAL ..............1-1 2. DISASSEMBLY 2-1. Cabinet Removal ..........2-1 2-2. D Board Removal ..........2-1 2-3. G Board Removal ..........2-2 2-4. A Board Removal ..........2-2 2-5. L Board Removal ..........2-3 2-6. -
Page 6: General
SECTION 1 The operating instructions mentioned here are partial abstracts from the Operating Instruction Manual. The page numbers of GENERAL the Operating Instruction Manual remain as in the manual. Getting Started Getting Started Getting Started Identifying Parts and Controls Setup Automatically Adjusting the Size and Centering of the Picture See the pages in parentheses for further details. - Page 7 Getting Started Customizing Your Monitor Customizing Your Monitor Getting Started The OPTION OSD automatically disappears after about 30 Before adjusting Selecting the Input Signal Introducing the On-screen seconds. • Connect the monitor and the computer, and turn them on. To close the OSD, press the button again.
- Page 8 Getting Started Customizing Your Monitor Customizing Your Monitor Press the >?// buttons to adjust the settings. Using the CENTER On-screen Using the SIZE On-screen Display Using the GEOM (Geometry) On- Display screen Display The SIZE settings allow you to adjust the size of the picture. Once the setting is adjusted, it will be stored in memory for The CENTER settings allow you to adjust the centering of The GEOM (geometry) settings allow you to adjust the...
- Page 9 Getting Started Customizing Your Monitor Customizing Your Monitor Fine tuning the color temperature Using the ZOOM On-screen Using the COLOR On-screen Display Using the SCREEN On-screen Press the ¨./> buttons to select an item and adjust by pressing the >?// buttons. Display Display You can change the monitor’s color temperature.
- Page 10 Getting Started Customizing Your Monitor Customizing Your Monitor Select Press Changing the on-screen display position Using the OPTION On-screen / . . . to shift red shadows up and blue select one of the four corners that Display shadows down You can change the OSD position (for example, when you LANDING needs color correction due to...
- Page 11 Customizing Your Monitor Getting Started Customizing Your Monitor Setting the power saving delay time Locking the controls Using the LANG (Language) On- Resetting the Adjustments screen Display You can set the delay time before the monitor enters the The control lock function disables all of the buttons on the Resetting an adjustment item power saving mode.
- Page 12 Additional Information Technical Features Getting Started Technical Features Additional Information 1 The input signal condition You can set the delay time before the monitor enters the Power Saving Function Warning Messages power saving mode using the OSD. Set the time according “OUT OF SCAN RANGE”...
- Page 13 Getting Started Additional Information Additional Information Symptom Check these items Self-diagnosis Function Specifications You cannot adjust the monitor • If the control lock function is set to on, set it to off using the OPTION OSD (page 15). with the buttons on the front This monitor is equipped with a self-diagnosis function.
- Page 14 GDM-5001PT MEMO...
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Page 15: Disassembly
GDM-5001PT SECTION 2 DISASSEMBLY 2-1. CABINET REMOVAL Four screws (+ BVTP 4 x 16) Screw cover Four screws (+ BVTT 4 x 8) Two claws Top cover Screw cover Cabinet Four screws (+ BVTT 4 x 8) Video shield 2-2. D BOARD REMOVAL... -
Page 16: G Board Removal
GDM-5001PT 2-3. G BOARD REMOVAL Two screws (+BVTP 3 x 10) Screw (+ BVTT 4 x 8) G shield Two screws (+ BVTT 4 x 8) G board Three hooks Open the G block in the direction Two printed circuit board holders of the arrow . -
Page 17: L Board Removal
GDM-5001PT 2-5. L BOARD REMOVAL CN5001 CN5004 CN5002 CN5003 L board Four printed circuit board holders 2-6. I/O TERMINAL BOARD ASSY REMOVAL CN401 CN511 CN402 Three screws (+ BVTT 3 x 8) I/O terminal board assy... -
Page 18: Service Position
GDM-5001PT 2-7. SERVICE POSITION CAUTION : SHORT D,G boards Rear shield If the claw is hooked, opening and closing the board is impossible. Do not try to do it by force. D board (Refer to 2-2.) A board (Refer to 2-4.) -
Page 19: Picture Tube Removal
GDM-5001PT 2-9. PICTURE TUBE REMOVAL Open the D block (Refer to 2-2.) Four screws (+ BVTT 4 x 8) Three connectors GND (DY) 6P (DY) A board 10P (DY) Anode cap Open the G block (Refer to 2-3.) Neck assy... -
Page 20: Safety Related Adjustment
GDM-5001PT SECTION 3 SAFETY RELATED ADJUSTMENT When replacing or repairing the shown below table, the a) HV Regulator Circuit Check following operational checks must be performed as a 1) Confirm that the voltage of the pin 2 of CN901 on safety precaution against X-rays emissions from the unit. -
Page 21: Adjustments
GDM-5001PT SECTION 4 ADJUSTMENTS Note: Hand degauss must be used on stand-by or power-off condition. This model has an automatic earth magnetism correction function by using an earth magnetism sensor and a LCC coil. When using a hand degauss while monitor (LCC coil) is being operated, it sometimes gets magnetized, and the system may not work properly as a result. - Page 22 GDM-5001PT Connect the communication cable of the computer to the connector located on the D board on the monitor. Run the service software and then follow the instruction. 1-690-391-21 A-1500-819-A 3-702-691-01 Interface Unit Connector Attachment IBM AT Computer To BUS CONNECTOR...
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Page 23: Diagrams
SECTION 5 DIAGRAMS 5-1. BLOCK DIAGRAMS TO FBT FV1 FV2 HV IC401 IC402 IC403 RGB SWITCH RGB PRE-AMP RGB OUT V901 PICTURE TUBE CN402 Q101 R IN 2 R_IN2 R_OUT R_IN R_OUT R_IN R_OUT G IN 2 G_IN2 G_IN G_OUT BUFFER Q201 B IN 2... - Page 24 CN520 CN504 CN512 (U-COM,DEFLECTION) LCC_RB (POWER SW) POWER LCC_RT H CONV HTR_SW LCC_LB CN891 IC012 S891 V CONV STBY 8V LCC_LT AC L IN POWER LCC_LB AC L OUT CN511 V CLK C.SYNC_1 V.SYNC_1 C.SYNC_2 PS504 V.SYNC_2 CN605 DDC_SDA_1 IC002 IC001 IC006 DDC_SCL_1...
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Page 25: Circuit Boards Location
5-3. CIRCUIT BOARDS LOCATION Note: The components identified by shading and mark ! are critical for safety. Replace only with part 5-2. FRAME SCHEMATIC DIAGRAM number specified. Note: Les composants identifiés per un tramé et une CONNECTOR PANEL R IN 1 marque ! sont critiques pour la sécurité. - Page 26 — D BOARD (Conductor Side) — — D BOARD (Component Side) — µ-COM, DEFLECTION • D BOARD SEMICONDUCTOR LOCATION Q660 D–2 D513 E–1 Q661 D–2 D514 A–4 A–1 – Conductor Component Side Side Q701 D–1 D–4 – D516 D–2 Q703 C–1 C–4 –...
- Page 27 (1) Schematic Diagram of D Board • D BOARD WAVEFORMS • D BOARD VOLTAGE LIST ROTATION+ TO L BOARD TO L BOARD ROTATION- Ref. Pin No. Voltage [V] Ref. Pin No. Voltage [V] CN5002 CN5001 IC002 CN520 CN512 CN509 11.2 :S-MICRO :S-MICRO :S-MICRO...
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Page 28: Schematic Diagram Of D Board
(2) Schematic Diagrams of G, GA, H, J and L Boards STBY+5V C811 Q801 TO D BOARD 2SC3311A CN801 LED DRIVE Q802 CN501 2SC3311A R814 :S-MICRO L LED DRIVE (POWER SENSOR) +15V LED0 LED1 R815 LED2 Q7504 2SA1037AK LED3 CN7501 •... - Page 29 (ga) V.STAT, H.STAT, LLC, POWER SUPPLY USER CONTROL POWER SENSOR GEO MAGNETIC SENSOR — G BOARD — — L BOARD (Conductor Side) — — L BOARD (Component Side) — G BOARD Terminal name of semiconductors in silk screen printed circuit ( Ref.
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Page 30: Schematic Diagram Of A Board
(3) Schematic Diagram of A Board C458 IC401 IC402 IC403 C412 +12V FA4111 C101 M52755FP-TP RGB PRE-AMP M52722P RGB DRIVE 0.01 C312 BLOCK 0.01 B:CHIP B:CHIP RGB OUT STBY+5V +12V C102 C402 R475 C305 47 16V R339 R314 B:CHIP R122 0.01 :CHIP C322... - Page 31 VIDEO AMP • A BOARD RGB OUT SEMICONDUCTOR LOCATION — A BOARD (Conductor Side) — — A BOARD (Component Side) — Conductor Component Side Side IC401 A–1 IC402 B–3 B–1 IC403 B–3 B–1 IC404 A–2 IC406 A–1 A–3 IC408 A–1 A–3 IC409 C–1...
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Page 32: Semiconductors
5-4. SEMICONDUCTORS BA9756FS-E2 LA6510 NJM4558M µPC1093J 2SA1091-O M62352GP-75E µPC4558G2 2SC2362K-G M62352GP-75ED 24LC16BT/SN 24LC21AT/SN TOP VIEW TOP VIEW 20 pin SOP 8 pin SOP LA7841L µPC78L05J 2SA1175-HFE CXA2043Q 2SA1309A-QRSTA MARKING SIDE VIEW NJM78L05A 2SC2784 NJM78L09A 2SC2785-HFE TA78L05S 2SC3311A-QRSTA TA78L09S LETTER SIDE 7 pin SIP LM324M DTA114GKAT146... - Page 33 2SC4015TV2 DTZ-TT11-16B D5LC20U P6KE200AG23 DTZ10B CATHODE DTZ13B DTZ24B DTZ33B DTZ4.7C DTZ5.1B MA111 RD12SB2 RD5.6SB ANODE UDZ-TE-17-10B UDZ-TE-17-12B 2SC5047-CA UDZ-TE-17-13B EGP20G RD6.2M-B1 UDZ-TE-17-16B ERA34-10 UDZ-TE-17-24B RGP02-17EL-6433 UDZ-TE-17-33B RGP02-17PKG23 UDZ-TE-17-4.7B RGP02-20EG23 UDZ-TE-17-5.1B RGP02-20EL-6394 UDZ-TE-17-5.6B RGP15GPKG23 UDZ-TE-17-6.2B UF4005PKG23 CATHODE 2SK1120LBSONY2 RM11A ANODE 2SK2098-01MR RM11C CATHODE CATHODE...
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Page 34: Exploded Views
GDM-5001PT SECTION 6 EXPLODED VIEWS • Items with no part number and no • Items marked " * " are not stocked since The components identified by shading description are not stocked because they they are seldom required for routine ¡... -
Page 35: Picture Tube
GDM-5001PT 6-2. PICTURE TUBE The components identified by shading Les composants identifiés per un tramé 7-685-663-71 +BVTP 4X16 ¡ ¡ and mark are critical for safety. et une marque sont critiques pour la ¢ 7-685-881-09 +BVTT 4X8 Replace only with part number specified. -
Page 36: Packing Materials [Nh, Aep For Japan-Made Set]
GDM-5001PT 6-3. PACKING MATERIALS The components identified by shading Les composants identifiés per un tramé [NH, AEP for ¡ ¡ and mark are critical for safety. et une marque sont critiques pour la Replace only with part number specified. sécurité. Ne les remplacer que par une Japan-made set] piéce portant le numéro spécifié. -
Page 37: Packing Materials [U/C, Aep For Uk-Made Set]
GDM-5001PT 6-4. PACKING MATERIALS The components identified by shading Les composants identifiés per un tramé [U/C, AEP for ¡ ¡ and mark are critical for safety. et une marque sont critiques pour la Replace only with part number specified. sécurité. Ne les remplacer que par une UK-made set] piéce portant le numéro spécifié. -
Page 38: Electrical Parts List
GDM-5001PT GDM-5001PT The components identified by shading Les composants identifiés per un tramé SECTION 7 ¡ ¡ and mark are critical for safety. et une marque sont critiques pour la Replace only with part number specified. sécurité. Ne les remplacer que par une ELECTRICAL PARTS LIST piéce portant le numéro spécifié. - Page 39 GDM-5001PT The components identified by shading Les composants identifiés per un tramé ¡ ¡ et une marque sont critiques pour la and mark are critical for safety. sécurité. Ne les remplacer que par une Replace only with part number specified.
- Page 40 GDM-5001PT The components identified by shading Les composants identifiés per un tramé ¡ ¡ and mark are critical for safety. et une marque sont critiques pour la Replace only with part number specified. sécurité. Ne les remplacer que par une piéce portant le numéro spécifié.
- Page 41 GDM-5001PT The components identified by shading Les composants identifiés per un tramé ¡ ¡ et une marque sont critiques pour la and mark are critical for safety. sécurité. Ne les remplacer que par une Replace only with part number specified.
- Page 42 GDM-5001PT The components identified by shading Les composants identifiés per un tramé ¡ ¡ and mark are critical for safety. et une marque sont critiques pour la (a)(ga)(g) Replace only with part number specified. sécurité. Ne les remplacer que par une piéce portant le numéro spécifié.
- Page 43 GDM-5001PT The components identified by shading Les composants identifiés per un tramé ¡ ¡ et une marque sont critiques pour la and mark are critical for safety. sécurité. Ne les remplacer que par une Replace only with part number specified.
- Page 44 GDM-5001PT The components identified by shading Les composants identifiés per un tramé ¡ ¡ and mark are critical for safety. et une marque sont critiques pour la (g)(d) Replace only with part number specified. sécurité. Ne les remplacer que par une piéce portant le numéro spécifié.
- Page 45 GDM-5001PT The components identified by shading Les composants identifiés per un tramé ¡ ¡ et une marque sont critiques pour la and mark are critical for safety. sécurité. Ne les remplacer que par une Replace only with part number specified.
- Page 46 GDM-5001PT The components identified by shading Les composants identifiés per un tramé ¡ ¡ and mark are critical for safety. et une marque sont critiques pour la Replace only with part number specified. sécurité. Ne les remplacer que par une piéce portant le numéro spécifié.
- Page 47 GDM-5001PT The components identified by shading Les composants identifiés per un tramé ¡ ¡ et une marque sont critiques pour la and mark are critical for safety. sécurité. Ne les remplacer que par une Replace only with part number specified.
- Page 48 GDM-5001PT The components identified by shading Les composants identifiés per un tramé ¡ ¡ and mark are critical for safety. et une marque sont critiques pour la Replace only with part number specified. sécurité. Ne les remplacer que par une piéce portant le numéro spécifié.
- Page 49 GDM-5001PT The components identified by shading Les composants identifiés per un tramé ¡ ¡ et une marque sont critiques pour la and mark are critical for safety. sécurité. Ne les remplacer que par une Replace only with part number specified.
- Page 50 GDM-5001PT The components identified by shading Les composants identifiés per un tramé ¡ ¡ and mark are critical for safety. et une marque sont critiques pour la Replace only with part number specified. sécurité. Ne les remplacer que par une piéce portant le numéro spécifié.
- Page 51 GDM-5001PT The components identified by shading Les composants identifiés per un tramé ¡ ¡ et une marque sont critiques pour la and mark are critical for safety. (d)(h) sécurité. Ne les remplacer que par une Replace only with part number specified.
- Page 52 GDM-5001PT The components identified by shading Les composants identifiés per un tramé ¡ ¡ and mark are critical for safety. et une marque sont critiques pour la (h)(j)(l) Replace only with part number specified. sécurité. Ne les remplacer que par une piéce portant le numéro spécifié.
- Page 53 GDM-5001PT The components identified by shading Les composants identifiés per un tramé ¡ ¡ et une marque sont critiques pour la and mark are critical for safety. sécurité. Ne les remplacer que par une Replace only with part number specified.