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SERVICE MANUAL
Picture tube
0.25 mm aperture grill pitch
19 inches measured diagonally
90-degree deflection
Video image area
(18" maximum viewing image)
Approx. 365 X 274 mm (w/h)
(14
3/8
x 10
Resolution
Horizontal: Max. 1600 dots
Vertical: Max. 1200 lines
Standard image
Approx. 352 x 264 mm (w/h)
area
(13
7/8
x 10
Input signal
Video
Analog RGB (75 ohms typical)
0.7 Vp-p, Positive
Sync
External HD/VD, Composite
Polarity Free TTL
Video Composite (Sync on Green)
0.3 Vp-p, Negative
SPECIFICATIONS
7/8
inches)
1/2
inches)
MCM-19T1
D98
Power Consumption
Maximum
Nominal
Deflection frequency
AC input voltage /current
Dimensions
M a s s
Design and specifications are subject to change without notice.
COLOR COMPUTER DISPLAY
MCM-19T1
AEP Model
Chassis No. SCC-L20GA
CHASSIS
125 W, 436 BTU/h
100 W, 300BTU/h
Horizontal: 30 to 96 KHz
Vertical: 48 to120 Hz
100 to 120 V, 50/60 Hz, 1.7A
220 to 240V, 50/60Hz, 1.2A
444 x 467 x 455 (w/h/d)
(17
1/2
x 18
1/2
x 18 inches)
Approx. 26 kg (57 lb 5 oz)
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Table of Contents
Related Manuals for Siemens MCM-19T1
Summary of Contents for Siemens MCM-19T1
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Page 1: Service Manual
MCM-19T1 SERVICE MANUAL MCM-19T1 AEP Model Chassis No. SCC-L20GA CHASSIS SPECIFICATIONS Power Consumption Picture tube 0.25 mm aperture grill pitch Maximum 19 inches measured diagonally 125 W, 436 BTU/h Nominal 90-degree deflection 100 W, 300BTU/h Deflection frequency Video image area (18"... - Page 2 MCM-19T1 POWER SAVING FUNCTION If no video signal is input to the monitor, the NOTE: This monitor has three Power Saving modes. "NO INPUT SIGNAL" message appears. After about By sensing the absence of a video signal from the 30 seconds, the Power Saving function automatically...
- Page 3 MCM-19T1 SAFETY CHECK-OUT After correcting the original service problem, perform LEAKAGE TEST the following safety checks before releasing the set The AC leakage from any exposed metal part to earth to the customer: ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500...
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Page 4: Table Of Contents
MCM-19T1 TABLE OF CONTENTS Section Title Page GENERAL ..................5 DISASSEMBLY 2-1. Cabinet Removal ............10 2-2. Service Position ............10 2-3. D, A, H and N Board Removal ........10 2-4. Picture Tube Removal ..........11 SAFETY RELATED ADJUSTMENT ..........12 ADJUSTMENTS ................ - Page 5 MCM-19T1 — 5 —...
- Page 6 MCM-19T1 — 6 —...
- Page 7 MCM-19T1 — 7 —...
- Page 8 MCM-19T1 — 8 —...
- Page 9 MCM-19T1 — 9 —...
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Page 10: Disassembly
MCM-19T1 SECTION 2 DISASSEMBLY 2-1. CABINET REMOVAL 2-2. SERVICE POSITION Two claws PUSH H board Cabinet (additional board) PUSH A board D board 1 When the D-board is Two screws placed in service (BVTP 4 x 16) position, the Safety Earth Wire (green and yellow wire) is disconnected. -
Page 11: Picture Tube Removal
MCM-19T1 2-4. PICTURE TUBE REMOVAL Demagnetization coil Two screws (BVTP 4 x 16) Tension spring A board Neck assy Deflection yoke Four screws (Tapping screw 5) Stand assy (D board) Picture tube shield Anode cap Cushion REMOVAL OF THE ANODE-CAP NOTE: Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield or carbon painted on the CRT, after removing the anode. -
Page 12: Safety Related Adjustment
MCM-19T1 SECTION 3 SAFETY RELATED ADJUSTMENT HV Hold-Down Check When replacing parts shown in the table below, the following Using an external DC Power supply, apply the operational checks must be performed as a safety precaution voltage shown below between cathode of D908 on against X-ray emissions from the unit. -
Page 13: Adjustments
MCM-19T1 SECTION 4 ADJUSTMENTS Connect the communication cable of the connector located on the D board on the monitor. Run the service software and then follow these instructions. 1-690-391-21 A-1500-819-A 3-702-691-01 Interface Unit Connector Attachment IBM AT Computer To BUS CONNECTOR... - Page 14 MCM-19T1 Receive White cross-hatch. Vertical and Horizontal Position and Size Adjust HMC and VMC at six-pole magnet. Specification Six Pole Magnet a < 3.0 mm b < 3.0 mm Convergence Specification Receive R.B. cross-hatch. Horizontal and Vertical Adjust H.TILT by swinging the DY neck right and left.
- Page 15 MCM-19T1 Digital Convergence Adjustment Set CONV_SWITCH_NDX to 3 Step 1 Step 4 Adjust area "A" as follows: Adjust area "03" - "83" with the following register: "X DYNAMIC CONV RX03" - "X DYNAMIC CONV RX83" "Y DYNAMIC CONV RY03" - "Y DYNAMIC CONV RY83"...
- Page 16 MCM-19T1 NOTES: — 16 —...
- Page 17 MCM-19T1 NOTES: — 17 —...
- Page 18 MCM-19T1 NOTES: — 18 —...
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Page 19: Diagrams
MCM-19T1 SECTION 5 DIAGRAMS 5.1 BLOCK DIAGRAM 5-2. CIRCUIT BOARDS LOCATION 5-3. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS • All capacitors are in mF unless otherwise noted. pF: mmF 50 WV • When replacing parts shown in the table below, or less are not indicated except for electrolytic. -
Page 20: D Board Schematic Diagram
MCM-19T1 D BOARD TRANSISTOR D BOARD IC VOLTAGE LIST D BOARD WAVEFORMS VOLTAGE LIST IC401 IC603 IC652 IC703 IC805 D BOARD SCHEMATIC DIAGRAM volt volt volt volt volt Q501 0.36 5.89 1.18 7.71 2.48 -0.05 11.91 16.30 6.68 -0.05 4.18 Q502 5.89 11.94 5.97... -
Page 21: A Board Schematic Diagram
MCM-19T1 A BOARD SCHEMATIC DIAGRAM PICTURE TUBE A BOARD TRANSISTOR VOLTAGE LIST Q001 11.64 659.00 11.24 Q002 4.66 4.71 Q004 4.71 5.08 4.03 A BOARD D BOARD CN303 All voltages are in V CN512 A BOARD IC VOLTAGE LIST [VIDEO]... -
Page 22: N Board - Schematic Diagram
MCM-19T1 N BOARD SCHEMATIC DIAGRAM N BOARD WAVEFORMS 3.38V 3.56V (8MHz) [Micro, DSP] CONDUCTOR SIDE 5.03V 5.00V N BOARD SEMICONDUCTOR LOCATION DIODE D1001 IC1001 3.25V D1002 IC1003 D1003 TRANSISTOR D1017 Q1001 D1018 Q1002 N BOARD IC VOLTAGE LIST IC1001 0.01 13 0.00... -
Page 23: H Board Schematic Diagram
MCM-19T1 H BOARD SCHEMATIC DIAGRAM [USER CONTROL] — 35 — — 36 — 5. mcm H schem semis.p65 5/18/99, 11:13 AM... -
Page 24: Semiconductors
MCM-19T1 5-4. SEMICONDUCTORS LA6500-FA UPC4558G2 2SC5022-02 NJM78M05FA 2SC2611 2SA1162-G UPC5021-109 LA6510 2SC1623-L5L6 PC123F2 IRFU110A IRFIBC44LCLF65 FMC-26UA 1RF19634G-LF35 2SC5022-02 1RL1530GSLF33 FS7KM-18A-AY 2SK2098-01MR-F119 D2L40-TA D4L20U FMQ-G5FMS GBU4JL-6088 PST574CMT-T1 STV5109 TDA8177 CXD8768Q CXD8766S/JBK CAT24WC16J-TE13 TDA8138A TLV2262IDR 1SS119-25 MTZJ-39B 1PS226-115 MTZJ-6.2B EGP10D MTZJ-6.2B MA111... -
Page 25: Exploded Views
MCM-19T1 SECTION 6 EXPLODED VIEWS • Items with no part number and no • The component parts of an assembly are • Items marked " " are not stocked since they description are not stocked because they indicated by the reference numbers in are seldom required for routine service. -
Page 26: Packing Materials
MCM-19T1 6-2. PACKING MATERIALS REF.NO. PART NO. DESCRIPTION REMARK 1-765-719-21 CORD SET, POWER 52 * 4-063-381-21 CUSHION (UPPER) (ASSY) 4-204-761-01 MANUAL, INSTRUCTION 54 * 4-060-490-01 BAG, POLYETHYLENE 55 * 4-063-382-21 CUSHION (LOWER) (ASSY) 56 * 4-204-766-01 INDIVIDUAL CARTON — 40 —... -
Page 27: Electrical Parts List
MCM-19T1 SECTION 7 ELECTRICAL PARTS LIST Note: The components identified by in this manual • All variable and adjustable resistors have The components identified by shading have been carefully factory-selected for each characteristic curve B, unless otherwise and mark a re critical for safety. - Page 28 MCM-19T1 Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne les and mark are critical for safety. remplacer que par une piece portant le numero Replace only with part number specified.
- Page 29 MCM-19T1 Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne les and mark are critical for safety. remplacer que par une piece portant le numero Replace only with part number specified.
- Page 30 MCM-19T1 Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne les and mark are critical for safety. remplacer que par une piece portant le numero Replace only with part number specified.
- Page 31 MCM-19T1 Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne les and mark are critical for safety. remplacer que par une piece portant le numero Replace only with part number specified.
- Page 32 MCM-19T1 Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne les and mark are critical for safety. remplacer que par une piece portant le numero Replace only with part number specified.
- Page 33 MCM-19T1 Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne les and mark are critical for safety. remplacer que par une piece portant le numero Replace only with part number specified.
- Page 34 MCM-19T1 Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne les and mark are critical for safety. remplacer que par une piece portant le numero Replace only with part number specified.
- Page 35 MCM-19T1 Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne les and mark are critical for safety. remplacer que par une piece portant le numero Replace only with part number specified.
- Page 36 MCM-19T1 Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne les and mark are critical for safety. remplacer que par une piece portant le numero Replace only with part number specified.
- Page 37 CPD-4201M Note: Note: The components identified by in this manual have been The components identified by shading carefully factory-selected for each set in order to satisfy and mark are critical for safety. regulations regarding x-ray radiation. Should replacement Replace only with part number specified. be required, replace only with the value originally used.
- Page 38 MCM-19T1 Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne les and mark are critical for safety. remplacer que par une piece portant le numero Replace only with part number specified.
- Page 39 MCM-19T1 NOTES: — 53 —...
- Page 40 MCM-19T1 NOTES: — 54 —...
- Page 41 MCM-19T1 — 55 —...
- Page 42 MCM-19T1 English 99EJ74014-1 Printed in U.S.A. 9-978-854-01 © 1999.5 — 56 —...