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PDF Contains
Technical Data, Mechanical data, Detailed Circuit diagram with components value, PCB layout. Actual PCBs Print. Component List, Spare parts code list and Input output detail. It cover LBB1211, LBB1212, LBB1213, LBB1216, LBB1217.
It is the actual Service Manual for SQ10
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 "48" 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 "66" 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 "69" 6. Press the TV/VIDEO button on the remote control to set to the CS mode. 7. Activate the adjustment mode display of Fig. 1-1 and press the channel button (18) on the remote control to select "UNI COL". 8. Press the VOL. UP/DOWN button on the remote control until the contrast step No. becomes "75" 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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