P780
— 28 — — 29 — — 30 —— 27 —
D BOARD SCHEMATIC DIAGRAM
1
2 3
5.1 Vp-p (H) 3.5 Vp-p (H)
5.5 Vp-p (H)
4 5
6
6.0 Vp-p (H)
1.175 kVp-p (H)
47.5 Vp-p (H)
7 8
9
1.8 Vp-p (H) 55.3 Vp-p (H) 12.0 Vp-p (H)
D BOARD WAVEFORMS
10 11
12
10.5 Vp-p (H) 9.3 Vp-p (H) 12.0 Vp-p (H)
13 14 15
1.5 Vp-p (H) 1.181 kVp-p (H) 1.7 Vp-p (H)
D BOARD IC VOLTAGE LIST
IC401 IC502 IC603 7 5.0 IC901 36 4.6 14 0.9
pin volt pin volt pin volt 8 5.0 pin volt 37 4.0 15 GND
1 1. 6 1 1 .4 1 9.2 9 4.9 1 N C 38 5.0 16 11.5
2 14.8 2 1.4 2 8.1 10 11.9 2 5.0 39 5.0 17 0.4
3 -14.6 3 -15.0 3 NC 11 4.5 3 2. 5 40 N C 18 5.6
4 -15.1 4 0.1 4 3.5 12 4.9 4 2.2 41 NC 19 10.4
5 0. 2 5 14.8 5 3.5 13 5.0 5 NC 42 NC 20 9.2
6 14.8
IC503 6 12.3 14 3.3 6 4.8 43 NC 21 2.4
7 1.6 pin volt
IC604 15 1.1 7 0 44 2.3 22 9.7
IC501 1 89.5 pin volt 16 4.0 8 NC 45 2.3 23 5.0
pin volt 2 88.6 1 2.5 17 4.6 9 NC 46 1 .2 24 4. 9
1 11.9 3 79.3 2 G ND 18 GND 10 GND 47 0.6 25 3.5
2 4. 0 4 88.7 3 7.0
IC702 11 5.1 48 3.7 26 0.5
3 4. 0 5 98.4
IC605 pin volt 12 NC 49 0.4 27 4.9
4 5.5
IC601 pin volt 1 -0.2 13 NC 50 0.4 28 0
5 8.9 pin volt IN 14.8 2 2.5 14 4.7 51 4.9 29 0.4
6 4 .5 1 153.5 OUT 11.9 3 2.5 15 4. 9 52 4.9 30 G ND
7 GND 2 NC GND GND 4 2.5 16 3.9 53 5.0
IC904
8 0.2 3 GND 4 4.8 5 2.5 17 2.3 54 4.9 pin volt
9 GND 4 2.5
IC607 6 -0.1 18 3.7 55 N C 1 GND
10 8.2 5 0.0 pin volt 7 -15.0 19 0 56 GN D 2 GND
11 4.4 6 12.5 IN 9.5 8 GN D 20 0.1
IC902 3 GND
12 5.8 7 12.3 OUT 5.0 9 14.8 21 5.0 pin volt 4 4.9
13 5.8 8 2.5 GND GND 10 NC 22 0.2 1 2.2 5 5.0
14 5.8 9 2.8
IC608 11 3.2 23 4.7 2 4.7 IC905
15 5.2 10 NC pin volt 12 GND 24 5.0 3 4.0 pin volt
16 11.3 11 GND IN 11.9
IC703 25 0 4 4.6 1 GND
17 11.9 12 N C OUT 5.0 pin volt 26 0 5 GND 2 GND
18 6.8 13 0 .9 G ND GND 1 -0.2 27 0.5 6 4.0 3 GN D
19 8.0 14 6.1
IC701 2 -0.2 28 2.8 7 5.6 4 GND
20 6.1
IC602 pin volt 3 3.8 29 GND 8 4.9 5 4.0
21 GND pin volt 1 4.9 4 3.8 30 0.5 9 4.0 6 4.6
22 4.3 1 3.1 2 5.0 5 -15.0 31 5. 0 10 5. 0 7 5. 0
23 4.0 2 9.1 3 4.9 6 3.8 32 0.9 11 6.2 8 5.0
24 4.0 3 GND 4 4.9 7 3.8 33 0.4 12 4.7
All voltages are in V
4 6. 3 5 5.0 8 -0.2 34 4. 7 13 NC
5 1. 2 6 5.0 9 -0.2 35 4. 7
10 14.8
D BOARD TRANSISTOR
VOLTAGE LIST
BCE
Q50 1 5 .5 11.5 5 .5
Q502 5.5 G ND 5. 5
Q504 1.1 135.0 0 .6
Q505 0.6 -15.1 1.1
Q506 2.2 G ND 2. 8
Q507 -0.6 49.1 GND
Q508 0.5 11.9 0. 9
Q518 2.3 88.5 2.8
Q51 9 0 . 4 11.8 GN D
Q521 4.8 GND 5.4
Q522 4 .7 G ND 5. 0
Q524 5.0 GND 5.5
Q525 0.5 11.9 0. 9
Q60 1 0 11.9 G N D
Q603 5.0 0 GN D
Q604 0 8.1 GN D
Q605 4 .8 0 GN D
Q903 0 .4 5.5 GND
All voltages are in V
D BOARD TRANSISTOR
VOLTAGE LIST
DGS
Q503 93.0 176.0 179.0
Q510 84.5 7.9 GND
Q511 -11.1 -1.8 -14.8
Q512 0 4 .9 G ND
Q513 33.2 0 .4 GN D
Q514 33.8 0.4 GND
Q515 0 4 .9 G ND
Q516 0 5 .0 G ND
Q520 88.9 176.0 179.0
Q602 131.8 2 . 4 0.1
All voltages are in V
FOLDOUT 3 8/6/99, 10:43 AM1
To Next Page
Loading...
Need help?
General