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Download Tonomac NH776 docs - Computer monitors - CRT, TFT, LCD, touch screen, plasma display - service manuals and repair information| File information: | | File name: | NH776.rar
[preview NH776] new window | | Size: | 1088 kB | | Extension: | rar | | MD5 Checksum: | 88dfa48f9653056a5b49065c268a5425 | | Mfg: | Tonomac | | Model: | | | Original Chassis: | | | Descr: | Schematic and more | | Group: | > > > | | Uploaded: | 2010-05-26 20:47:54 | | User: | baulmp3 | | Multipart: | No multipart |
| Information about the files in archive: | | Decompress result: | OK | | Extracted files: | 4 | | File name | | Text | | Schematic Diagram.pdf | | | | Service Manual(Total).pdf | | REPLACEMENT PARTS LIST
CAUTION: BEFORE REPLACING ANY OF THESE COMPONENTS, READ CAREFULLY THE SAFETY PRECAUTIONS IN THIS MANUAL. * NOTE : S SAFETY Mark AL ALTERNATIVE PARTS
*S *AL LOC. NO.
MODEL: S/W775N, S/W775C PART NO. MAIN BOARD CAPACITORs C401 C402 C403 C404 C405 C406 C407 C408 C409 C410 C411 C412 C413 C501 C502 C503 C601 C602 C602 C603 C604 C605 C701 C702 C702 C702 C703 C703 C704 C704 C705 C706 C706 C707 C707 C708 C709 0CE4766F618 0CC2200K405 0CC2200K405 0CK2210K515 0CK2210K515 0CN2210K519 0CK1040K945 0CK1010K515 0CN1040K949 0CK1040K945 0CK1010K515 0CK1040K945 0CN1040K949 0CN1040K949 0CE1066F618 0CE1066F618 0CE477CH618 0CZZTFT001Z 181-288B 0CE476CN618 181-288P 0CK3320W515 181-288R 0CZZTFT001M 181-288N 0CQ1031N419 0CZZTFT001Z 181-288B 0CZZTFT001F 0CQ3321N419 0CQ1031N419 0CZZTFT001Z 181-288B 0CZZTFT002B 181-288Q 0CE108CF618 0CK8210W515
DESCRIPTION / SPECIFICATION
DATE: 1998 .12. 23. REMARK
CAPACITOR, AL.ELECTROLYTIC, 47U SMS 16V M FM5 TP5 CAPACITOR, CERAMIC (TEMP. COMPENSATE), | | Specifications.pdf | | SPECIFICATIONS
1. PICTURE TUBE Size DefIection Angle Neck Diameter Transmission Dot Pitch Face Treatment Low Radiation 3-2. Power Consumption : 17 inch (Flat Square Tube) : 90¡ : 29.1mm : 46% : 0.28mm : AR-ASC (Anti-Reflection and Anti-Static Coating) : MPR-II, TCO-95
MODE NORMAL (ON) STAND-BY SUSPEND OFF FAULT H/V SYNC ON/ON OFF/ON ON/OFF OFF/OFF OUT OF RANGE POWER CONSUMPTION LED COLOR GREEN
less than 105 W less than 15 W
ORANGE
less than 15 W less than 15 W less than 5 W
ORANGE ORANGE
2. SIGNAL 2-1. Horizontal & Vertical Sync 1) Input Voltage Level : Low=0~1.2V, High=2.5~5.5V 2) Sync Polarity : Positive or Negative 2-2. Video Input Signal 1) Voltage Level a) Color 0, 0 b) Color 7, 0 c) Color 15, 0 2) Input Impedance 3) Video Color 4) Signal Format
4. DISPLAY AREA 4-1. Active Video Area 4-2. Display Color 4-3. Display Resolution
: 0 ~ 0.7 Vp-p : 0 Vp-p : 0.467 Vp-p : 0.7 Vp-p : 75 ½ : R, G, B Analog : Refer to the Timing Chart
4-4. Video Bandwidth
: 310 x 230 mm (12.20" x 9.0 | | Timing Chart.pdf | | TIMING CHART
VIDEO
B A
C
E D F
SYNC
FACTORY PRESET MODE MODE
MARK MODE 1 H O R I Z O N T A L
MODE 2 + 46.88 21.33 16.16 5.17 0.32 1.62 3.23 + 75.01 13.331 12.798 0.533 0.021 0.064 0.448 800 x 600 75Hz Yes
MODE 3 + 53.68 18.63 14.22 4.41 0.57 1.14 2.70 + 85.07 11.775 11.178 0.577 0.018 0.056 0.503 800 x 600 85Hz Yes
MODE 4 + 68.677 14.561 10.836 3.725 0.508 1.016 2.201 + 85.00 11.764 11.182 0.582 0.014 0.044 0.524 1024 x 768 85Hz Yes
MODE 5 Ñ 31.47 31.78 25.42 6.36 0.64 3.81 1.91 + 70.08 14.269 12.712 1.557 0.414 0063 1.080 640 x 400 70Hz Yes
MODE 6 Ñ 31.47 31.78 25.42 6.36 0.64 3.81 1.91 Ñ 59.94 16.684 15.254 1.430 0.318 0.063 1.049 640 x 480 59Hz Yes
MODE 7 + 37.88 26.40 20.00 6.40 1.00 3.20 2.20 + 60.32 16.579 15.840 0.739 0.026 0.106 0.607 800 x 600 60Hz Yes
MODE 8 Ñ 43.27 23.11 17.78 5.33 0.89 1.33 3.11 Ñ 85.01 11.763 11.093 0.670 0.023 0.069 0.578 640 x 480 85Hz Yes
MODE 9 MODE 10 MODE 11 Ñ 49.75 20.10 14.52 5.58 0.55 1.12 3.91 Ñ 74.95 13.407 12.542 0.865 0.021 0.060 | | Trouble shooting.pdf | | TROUBLESHOOTING GUIDE
1. NO POWER
NO POWER (POWER INDICATOR OFF)
CHECK FUSE OK?
NO
TROUBLE IN FUSE (F901)
YES
CHECK C907 VOLTAGE? (AC120V: 170VDC, AC220V: 310VDC)
NO
TROUBLE IN D901, D902, D903, D904
YES
CHECK IC901 PIN 3 WAVEFORM (SQUARE WAVE COMES OUT?)
NO
TROUBLE IN IC901, IC902
YES
CHECK D920, D922, D924, D923, D926 VOLTAGE?
NO
TROUBLE IN D920, D922, D923, D924, D926
YES
TROUBLE IN IC923, IC925, Q922, Q923, Q924, Q926
- 17 -
2. NO CHARACTER
NO CHARACTER
CHECK IC302 PIN 7, 15, 18, 21(8V) ? YES
NO
TROUBLE IN P302 12V LINE, IC304
CHECK IC302 PIN 6, 8, 10 ?
NO
TROUBLE IN PC SIGNAL, P301 SIGNAL CABLE
YES
CHECK IC302 PIN 16, 19, 22 ?
NO
TROUBLE IN IC302
YES CHECK IC303 PIN 6 (70V) 10 (12V) ?
NO
TROUBLE IN P302 12V LINE/70V LINE
YES
CHECK IC303 PIN 1, 3, 5 ?
NO
TROUBLE IN IC303
YES CHECK R, G, B CATHODE VOLTAGE? YES TROUBLE IN CRT SOCKET TROUBLE IN R338~R341, R344, R345, L302~L304, D307~D310, D312, D313
NO
- 18 -
3. NO RASTER
NO VIDEO (POWER INDI |
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