A substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fire and / or other hazards. Product safety is under review continuously and new instructions are issued whenever appropriate. GD17N*/GD17A*...
Use only an anti-static solder removal device. Some brushing clothes together, or lifting your foot from solder removal devices not classified as “anti-static” a carpeted floor can generate enough static can generate electrical charges sufficient to damage electricity to damage an ESD. ESDs. GD17N*/GD17A*...
GND-Green GND-Blue GND-Blue GND-Blue No Connection No Connection Not Used GND-Sync/Self Test GND-Sync/Self Test GND-Sync/Self Test DDC Data DDC Data DDC Data Horizontal sync H/V-Sync Not Used Vertical sync Not Used Not Used DDC Clock DDC Clock DDC Clock GD17N*/GD17A*...
B : Horizontal sync width O : Frame time total P : Vertical sync width C : Back porch D : Active time Q : Back porch R : Active time E : Front porch S : Front porch GD17N*/GD17A*...
CONFIDENTIAL 3 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the GD17N*/GD17A* monitors. WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components. 3-1 Disassembly Cautions:1. Disconnect the monitor from the power source before disassembly.
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CONFIDENTIAL 3 Disassembly and Reassembly 3-2 Reassembly Reassembly procedures are in the reverse order of Disassembly procedures. GD17N*/GD17A*...
6. Do not attempt to connect or disconnect any wire while the TV is turned on. Make sure that the power cord is disconnected before replacing any parts. 7. To protect aganist shock hazard,use an isolation transform. GD17N*/GD17A*...
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CONFIDENTIAL 4 Alignments and Adjustments Memo GD17N*/GD17A*...
Check IC101. appear at Pin 4 of IC101? Does proper DC 2.5 V appear at Check IC109, IC104. Pin 2, 4 of IC109, IC104? Does proper DC 3.3 V Check IC103. appear at Pin 3 of IC103? Check IC201. GD17N*/GD17A*...
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RA306 ~ RA311? Does the clock pulse Check IC204 and related circuit of IC204. appear at Pin 12 of IC204? Does the clock pulse appear at Replace IC403. output Pin 39, 40 of IC403? Replace LCD Panel. GD17N*/GD17A*...
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Check Pin 8 (AGC) Check replace the tuner. of IC703 (CN402). Check Pin 52, 53, 55, 56 of IC402. Replace IC402. Check related circuit of Does the signal appear at D405. D405 and replace D405. Check Q401 and replace mainboard. GD17N*/GD17A*...
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Does the low signal Check related circuit of at R528, R529? R528, R529 and replace. Check Pin 14, 17 Replace IC502. of IC502 (TDA7496). Check Pin 60, 67 of Replace IC501 (MSP25/10). IC501 (MSP25/10). Check related circuit of IC501, IC502 and tuner. GD17N*/GD17A*...
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CONFIDENTIAL 6 Exploded View and Parts List GD17N*/GD17A*...