Samsung CHB5707L/5237L Service Manual page 77

Table 13-3. IC501 (TL494CN)
MODES
800 x 600 / 85 Hz 640 x 480 / 60 Hz
1 4.859 4.868
2 4.855 4.867
3 1.753 2.471
4 21.80 mV 12.40 mV
5 0.910 1.245
6 3.485 3.485
7 GND GND
8 11.834 11.836
9 3.035 1.458
10 3.034 1.458
11 11.834 11.836
12 11.834 11.836
13 GND GND
14 4.896 4.896
15 5.334 5.336
16 4.901 4.895
Unit: Vrms
CHB5**7L/6**7L/7**7L
9 1.14 V (IC501, #3) 10 12.16 V (IC501, #5)
CH1 P-P = 1.14 V CH1 RMS = 837 mV CH1 P-P = 12.16 V CH1 RMS = 6.376 V
11 9.12 V (Q502, Gate) 13 50.8 V (T502, #6)
CH1 P-P = 9.12 V CH1 RMS = 3.736 V CH1 P-P = 50.8 V CH1 RMS = 16.56 V
13 Schematic Diagrams
14 360 V (T502, #1)
CH1 P-P = 360 V CH1 RMS = 114.4 V
13-6