Siemens 19T2 Service Manual
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Siemens 19T2 Service Manual

Siemens 19T2 Service Manual

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SERVICE MANUAL
www.rtv-horvat-dj.hr
All manuals and user guides at all-guidesbox.com
SPECIFICATIONS
Dimensions and weight
CRT:
Visible diagonals:
Dot pitch:
Maximal resolution:
Preset display area:
Dimensions (W x H x D):
Weight:
Accessories:
Storable display modes:
Electrical data
Video:
Synchronization:
Horizontal frequency:
Refresh rate:
Maximum pixel rate:
Power supply:
Power consumption:
(see power management):
Environmental conditions
Environment class 3K2, IEC 721
Rated range of operation:
Humidity:
Limit range of operation:
Humidity:
Condensation must be avoided.
AEP Model
Chassis No. SCC-L30T-A
F99
46 cm (19")
46 cm
0.24 - 0.25 mm (slot mask)
1600 x 1200 pixels
352 mm x 264 mm
449 mm x 463 mm x 463 mm
26 kg
Power cable (1.8 m)
25 (10 of which are preset)
analog, positive, 0.7 V pp , 75 Ohm
Separate Sync. TTL
Composite Sync. TTL/ Sync. on Green
30 kHz .... 107 kHz (multi-scanning)
48 Hz .... 120 Hz
230 MHz
180 V -264 V, 50 Hz - 60 Hz
3 Hz,
< 1 A max. at 220 V
< 145 W (ON, Normal mode)
< 15 W (Standby mode)
< 15 W (Suspend mode)
< 3 W (OFF mode)
15 °C .... 35 °C
20 % .... 85 %
5 °C .... 40 °C
20 % .... 85 %
COLOR MONITOR
19T2
CHASSIS

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  • Page 1 All manuals and user guides at all-guidesbox.com 19T2 SERVICE MANUAL AEP Model Chassis No. SCC-L30T-A CHASSIS SPECIFICATIONS Dimensions and weight CRT: 46 cm (19") Visible diagonals: 46 cm Dot pitch: 0.24 - 0.25 mm (slot mask) Maximal resolution: 1600 x 1200 pixels...
  • Page 2 All manuals and user guides at all-guidesbox.com 19T2 SAFETY CHECK-OUT 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.
  • Page 3 All manuals and user guides at all-guidesbox.com 19T2 POWER SAVING FUNCTION If your PC has a VESA DPMS (Video Electronics Standard Association, Display Power Management Signaling) power management function (energy-saving mode), your monitor will fully support this function. The monitor has a four-stage power management system.
  • Page 4 All manuals and user guides at all-guidesbox.com 19T2 TIMING SPECIFICATION MODE AT PRODUCTION MODE 1 MODE 2 MODE 3 MODE 4 MODE 5 MODE 6 RESOLUTION 720 X 400 640 X 480 640 X 480 800 X 600 800 X 600...

  • Page 5: Table Of Contents

    All manuals and user guides at all-guidesbox.com 19T2 TABLE OF CONTENTS Section Title Page 1. GENERAL ..............1-1 2. DISASSEMBLY 2-1. Cabinet Removal ..........2-1 2-2. Shield (EMI, Video), Side Cover (L and R) Removal ......2-1 2-3. A Board Removal ..........2-2 2-4.

  • Page 6: General

    Operating Instruction Manual. The page numbers of GENERAL the Operating Instruction Manual remain as in the manual. Color monitor 19T2 Color monitor 19T2 Installing an ergonomic video workstation Before you set up your equipment you should select a suitable position for working at the monitor.
  • Page 7 All manuals and user guides at all-guidesbox.com Color monitor 19T2 Color monitor 19T2 If your PC detects inactivity (no input) it sends an appropriate signal to the monitor to reduce the Operation of the monitor power consumption. The power indicator of the monitor changes color to indicate the status change.
  • Page 8 All manuals and user guides at all-guidesbox.com Color monitor 19T2 Color monitor 19T2 Operating the OSD menu Setting the brightness of the background To set the OSD menu, perform the following steps: Briefly press the Menu button to activate the OSD menu.
  • Page 9 All manuals and user guides at all-guidesbox.com Color monitor 19T2 Color monitor 19T2 Setting language for the OSD menu (LANGUAGE) Trapezoid distortion (KEYSTONE): Making the bottom edge narrower and the top edge wider or making the top edge narrower and the bottom edge wider...
  • Page 10 All manuals and user guides at all-guidesbox.com Color monitor 19T2 Color monitor 19T2 Resetting all settings for the current input signal Restore original monitor colors (COLOR RETURN) Press - with the OSD menu hidden - the factory settings button After a number of years of operation the color brightness of your monitor may All settings for the current input signal are reset.
  • Page 11 Dot pitch: 0.24 - 0.25 mm (slot mask) If the monitor 19T2 is not yet displayed in the list of monitors, you can select one of the Maximal resolution: 1600 x 1200 pixels following monitors instead:...
  • Page 12 All manuals and user guides at all-guidesbox.com Color monitor 19T2 Color monitor 19T2 Pin assignment D-SUB (15-pin) Error handling Should an error occur, first check the following points. If the distortion is still not eliminated, the monitor should, if possible, be checked on another PC.
  • Page 13 All manuals and user guides at all-guidesbox.com Color monitor 19T2 Color monitor 19T2 Two fine horizontal lines (wires) are visible A humming noise is heard after switch-on The monitor is degaussed every time you switch it on. This produces the humming noise. There is Your monitor is equipped with a Trinitron picture tube, which enables more light to reach no malfunction.

  • Page 14: Disassembly

    All manuals and user guides at all-guidesbox.com 19T2 SECTION 2 DISASSEMBLY 2-1. CABINET REMOVAL Push in the tip of a screwdriver about 5mm to unlock the two claws. Cabinet Cabinet Two claws Bezel assembly Bezel assembly Cabinet Two screws (+BVTP 4 x 16)

  • Page 15: A Board Removal

    All manuals and user guides at all-guidesbox.com 19T2 2-3. A BOARD REMOVAL A board CN306 CN311 CN303 CN309 Three screws (+BVTT 3 x 8) CN305 Screw (+BVTT 4 x 8) Cable stopper Two screws 2-4. REAR SHIELD COMPLETE ASSY, (+BVTP 3 x 8)

  • Page 16: Service Position

    All manuals and user guides at all-guidesbox.com 19T2 2-5. SERVICE POSITION A board D board AC inlet 2-6. H BOARD REMOVAL Before removing the bezel assembly, secure the picture tube shield at the positions shown with the arrow (diagonal two places) to prevent the picture tube...

  • Page 17: Picture Tube Removal

    All manuals and user guides at all-guidesbox.com 19T2 2-7. PICTURE TUBE REMOVAL Four screws (Tapping screw (5)) Anode cap A board 2pin Neck assembly CN11 Three connectors Deflection yoke Picture tube Bezel assembly CN801 • REMOVAL OF 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 18: Harness Location

    All manuals and user guides at all-guidesbox.com 19T2 2-8. HARNESS LOCATION H board CN2001 Picture tube Degaussing coil CN11 N board CN1004 CN1003 CN1002 CN701 CN702 Side cover (L) CN603 D board CN904 CN600 AC inlet Rear shield CN313 CN302...

  • Page 19: Safety Related Adjustment

    All manuals and user guides at all-guidesbox.com 19T2 SECTION 3 SAFETY RELATED ADJUSTMENT When replacing or repairing parts in the table shown be- b) High Voltage Hold-Down Function Check low, the following operational checks must be performed + 0.00 1) Apply the voltage 21.1 VDC between D912 cath- –...

  • Page 20: Adjustments

    All manuals and user guides at all-guidesbox.com 19T2 SECTION 4 ADJUSTMENTS • Landing Rough Adjustment 13. Using two wedges, adjust vertical pins so as to attain a=b as 1. Enter the full white signal. (or the full black dots signal).
  • Page 21 All manuals and user guides at all-guidesbox.com 19T2 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...

  • Page 22: Diagrams

    All manuals and user guides at all-guidesbox.com SECTION 5 DIAGRAMS 5-1. BLOCK DIAGRAMS CN310 CN311 (VIDEO AMP, RGB OUT) DDC SCL DDC SCL DDC SDA DDC SDA TO FBT HC FC IC001 IC002 RGB PRE-AMP RGB OUT CN313 CN315 CN316 BLUE1 B IN B OUT...
  • Page 23 All manuals and user guides at all-guidesbox.com µ-COM, CY, DEFLECTION , POWER, H DEF, HV CN603 D625 LF602 AC IN CN600 F601 T602 AC RECT :LFT :SRT AC L 200V TH600 IC604 IC603 SW REG CONT AC H 12V REG S602 RY602 IC701 CY AMP...

  • Page 24: Frame Schematic Diagram

    All manuals and user guides at all-guidesbox.com 5-3. CIRCUIT BOARDS LOCATION 5-2. FRAME SCHEMATIC DIAGRAM B GND1 BLUE1 CN313 G GND1 GREEN1 R GND1 VIDEO CABLE RED1 VIDEO AMP, RGB OUT CN310 PICTURE TUBE DDCSCL CN309 CN311 CN306 VIDEO CABLE CN305 DDCSDA CN301...

  • Page 25: Schematic Diagrams And Printed Wiring Boards

    All manuals and user guides at all-guidesbox.com VIDEO AMP RGB OUT 5-4. SCHEMATIC DIAGRAMS AND PRINTED — A BOARD — WIRING BOARDS Note: Part Replaced ([) • All capacitors are in µF unless otherwise noted. (pF: µµF) HV ADJ RV901 Capacitors without voltage indication are all 50 V.

  • Page 26: Schematic Diagram Of A Board

    All manuals and user guides at all-guidesbox.com • A BOARD WAVEFORMS (1) Schematic Diagram of A Board 4.16 Vp-p (H) 4.16 Vp-p (H) 49.8 Vp-p (H) 49.8 Vp-p (H) 48.8 Vp-p (H) 49.8 Vp-p (H) 49.8 Vp-p (H) 48.8 Vp-p (H) 4.08 Vp-p (H) 1.78 Vp-p (8 MHz) CN315...

  • Page 27: Schematic Diagrams Of D (A,B,C) Board

    All manuals and user guides at all-guidesbox.com (2) Schematic Diagrams of D (a, b, c) Board TO A BOARD TO A BOARD TO H BOARD TO A BOARD CN311 CN306 CN2001 TO ECS CN309 3 - 8 PIN CN701 CN1002 CN1004 CN1001 CN1003...
  • Page 28 All manuals and user guides at all-guidesbox.com C650 100p 500V D615 12V-2 R653 12V-2 UF4007G23 C501 C557 R503 C609 4700p Q502 F:CHIP :CHIP 250V 2SC2411K R664 C500 R501 H DRIVE BUFF 220p C559 D616 CH:CHIP :CHIP BT149G-412-OT359 F:CHIP C622 R657 R502 R652 0.0022...
  • Page 29 All manuals and user guides at all-guidesbox.com • D-c BOARD • D BOARD SEMICONDUCTOR LOCATION WAVEFORMS Q704 – D628 – Q705 – D629 IC401 Q706 – D630 – D901 IC501 Q901 – D634 – MA111-TX IC502 Q902 – D635 – R901 R902 C901...
  • Page 30 All manuals and user guides at all-guidesbox.com µ-COM, CY, DEFLECTION, POWER, H DEF, HV — D BOARD — NOTE: The circuit indicated as left contains high voltage of over 600 Vp-p. Care must be paid to prevent an electric shock in inspection or repairing.

  • Page 31: Schematic Diagrams Of N, H Boards

    All manuals and user guides at all-guidesbox.com USER CONTROL (3) Schematic Diagrams of N, H Boards — N BOARD (Conductor Side) — — N BOARD (Component Side) — V.FBP HSYNCO R829 R830 PLL LOCK R831 R866 :CHIP :CHIP :CHIP FB809 :CHIP C827 CN801...

  • Page 32: Semiconductors

    All manuals and user guides at all-guidesbox.com 19T2 5-5. SEMICONDUCTORS BA00AST-V5 CXD9522S MC13289 FS5KM-16A 2SA1175-HFE BA05ST-V5 FS5KM-18A-AY 2SA1309A-QRSTA H8D2972 IRFI9634G-LF35 2SC2459-GR-TPE4 LA6500-FA 2SK3265 (LB2SONY) 2SC2784 2SC2785-HFE 2SC3311A-QRSTA TOP VIEW TOP VIEW 2SC3311A-RTA 32 pin DIP 24 pin DIP LETTER SIDE...
  • Page 33 All manuals and user guides at all-guidesbox.com 19T2 2SK2098-01MR-F119 EGP10DPKG23 D2L40-TA 1PS226-115 ERB38-06V1 HZS182-TE HSS82-TJ HZS9.1NB2 MTZJ-T-77-15B MTZJ-T-77-18 MTZJ-T-77-5.6B MTZJ-T-77-4.7B NNCD5.6A-T1 MTZJ-T-77-6.2 MTZJ-4.7C RGP02-17EL-6433 RGP02-17PKG23 MTZJ-6.2B RGP10DG23 RD10ES-T1B2 RD10ESB2 UF4007G23 RD15ES-B2 1N4148S-26TP 1SS133T-77 RD16ES-B3 RD16ES-T1B2 BT149G-412-OT359 1SS367-T3SONY 1SS376TE-17 TL1431CZ-AP RD18ES-B2...

  • Page 34: Exploded Views

    All manuals and user guides at all-guidesbox.com 19T2 SECTION 6 EXPLODED VIEWS • Items with no part number and no • Items marked " * " are not stocked since The components identified ! marked are description are not stocked because they they are seldom required for routine critical for safety.

  • Page 35: Picture Tube

    All manuals and user guides at all-guidesbox.com 19T2 6-2. PICTURE TUBE 7-685-881-09 +BVTT 4X8 The components identified ! marked are critical for safety. Replace only with the part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK...

  • Page 36: Packing Materials

    All manuals and user guides at all-guidesbox.com 19T2 6-3. PACKING MATERIALS 105 106 The components identified ! marked are critical for safety. Replace only with the part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK * 4-205-637-01 CARTON INDIVIDUAL...

  • Page 37: Electrical Parts List

    All manuals and user guides at all-guidesbox.com 19T2 19T2 ¡ The components identified marked are SECTION 7 critical for safety. Replace only with the part number specified. ELECTRICAL PARTS LIST The components identified by [ in this REF.NO. PART NO.
  • Page 38 All manuals and user guides at all-guidesbox.com 19T2 ¡ The components identified marked are critical for safety. Replace only with the part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK C323 1-136-189-00 MYLAR 0.1uF 250V FB010 1-414-231-22 INDUCTOR CHIP C330 1-164-489-11 CERAMIC CHIP 0.22uF...
  • Page 39 All manuals and user guides at all-guidesbox.com 19T2 ¡ The components identified marked are critical for safety. Replace only with the part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK JR021 1-216-296-91 SHORT R045 1-216-057-00 RES-CHIP 2.2K...
  • Page 40 All manuals and user guides at all-guidesbox.com 19T2 ¡ The components identified marked are critical for safety. Replace only with the part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK R307 1-216-675-91 METAL CHIP 0.5% 1/10W...
  • Page 41 All manuals and user guides at all-guidesbox.com 19T2 ¡ The components identified marked are critical for safety. Replace only with the part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK C564 1-115-339-11 CERAMIC CHIP 0.1uF C708...
  • Page 42 All manuals and user guides at all-guidesbox.com 19T2 ¡ The components identified marked are critical for safety. Replace only with the part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK C1030 1-164-222-11 CERAMIC CHIP 0.22uF D611 8-719-053-19 DIODE UF4007G23 C1031 1-164-004-11 CERAMIC CHIP 0.1uF...
  • Page 43 All manuals and user guides at all-guidesbox.com 19T2 ¡ The components identified marked are critical for safety. Replace only with the part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK JR020 1-216-296-91 SHORT D1022 8-719-062-51 DIODE 1PS226-115 D1024 8-719-073-01 DIODE MA111-(K8).S0...
  • Page 44 All manuals and user guides at all-guidesbox.com 19T2 ¡ The components identified marked are critical for safety. Replace only with the part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK Q502 8-729-901-87 TRANSISTOR 2SC2411K-CQ R509 1-249-381-11 CARBON...
  • Page 45 All manuals and user guides at all-guidesbox.com 19T2 ¡ The components identified marked are critical for safety. Replace only with the part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK R574 1-249-404-00 CARBON 1/4W R679 1-215-467-00 METAL...
  • Page 46 All manuals and user guides at all-guidesbox.com The components identified by [ in this 19T2 ¡ The components identified marked are manual have been carefully factory- selected for each set in order to satisfy critical for safety. regulations regarding X-ray radiation.
  • Page 47 All manuals and user guides at all-guidesbox.com 19T2 ¡ The components identified marked are critical for safety. Replace only with the part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK T502 1-411-594-11 INDUCTOR R2004 1-215-411-00 METAL...
  • Page 48 All manuals and user guides at all-guidesbox.com 19T2 ¡ The components identified marked are critical for safety. Replace only with the part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK C840 1-163-017-00 CERAMIC CHIP 0.0047uF 10%...

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