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TOSHIBA 20AF41
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of TOSHIBA 20AF41 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

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Text excerpt from page 11 (click to view)
ELECTRICAL ADJUSTMENTS
2-16: SEPARATION 1, 2 1. Receive the stereo signal (L=2KHz, R=400Hz). 2. Connect the AC voltmeter to AUDIO OUT JACK though stereo filter (L=400Hz, R=2KHz). 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (31) on the remote control to select "SEP1". 4. Press the VOL. UP/DOWN button on the remote control until the output of L-CH and R-CH become minimum. 5. Press the CH UP button once the set to "SEP2" mode. 6. Press the VOL. UP/DOWN button on the remote control until the output of L-CH and R-CH become minimum. 7. Press the CH DOWN button once the set to "SEP1" mode. 8. Repeat step 4 to step 7 several times. The output difference of the between with Filter and without Filter should be more than 25db for both L and R. 2-17: BRIGHTNESS 1. Activate the adjustment mode display of Fig. 1-1 and press the channel button (16) on the remote control to select "BRI". 2. Press the VOL. UP/DOWN button on the remote control until the brightness step No. becomes "68" 3. Press the TV/VIDEO button on the remote control to set to the AV mode. Then perform the above adjustments 1~2. 4. Press the TV/VIDEO button on the remote control to set to the CS mode. Then perform the above adjustments 1~2. 2-18: UNI-COLOR 1. Activate the adjustment mode display of Fig. 1-1 and press the channel button (18) on the remote control to select "UNI COL". 2. Press the VOL. UP/DOWN button on the remote control until the contrast step No. becomes "8" 3. Press the TV/VIDEO button on the remote control to set to the AV mode. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (18) on the remote control to select "UNI COL". 5. Press the VOL. UP/DOWN button on the remote control until the contrast step No. becomes "4" 6. Press the TV/VIDEO button on the remote control to set to the CS mode. Then perform the above adjustments 4~5. 2-19: SUB TINT/SUB COLOR 1. Receive the color bar pattern. (RF Input) 2. Connect the synchro scope to TP806. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (20) on the remote control to select "TINT". 4. Press the VOL. UP/DOWN button on the remote control until the waveform becomes as shown in Fig. 2-2. 5. Connect the synchro scope to TP804. 6. Press the CH DOWN button 3 times to set to "SUBCONT" mode. 7. Press the VOL. UP/DOWN button on the remote control until the red color level is adjusted to 115% of the white level. (Refer to Fig. 2-3) 8. Receive the color bar pattern. (Audio Video Input) 9. Press the TV/VIDEO button on the remote control to set to the AV mode. Then perform the above adjustments 2~7. 10. Receive the color bar pattern. (Audio Video Input) 11. Press the TV/VIDEO button on the remote control to set to the CS mode. Then perform the above adjustments 2~6. 12. Press the VOL. UP/DOWN button on the remote control until the red color level is adjusted to 140% of the white level. (Refer to Fig. 2-4)

Fig. 2-2

White 100%

RED Level

Fig. 2-3

White 100%

RED Level Fig. 2-4

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