Panasonic CT32SC13G Service Manual - Page 36

cold or hot ground for the - lead of the DVM as needed.

Page 36 highlights

http://tsn.pstc.panasonic.com/viewing/NA/CT-36SL13G/SVC/s1100000000x.html Components and test points within doted areas are located on trace side. B+ voltage check 1. Set the BRIGHT and PICTURE to minimum by using the PICTURE menu. 2. Connect the DVM between TPD145 and cold ground. 3. Confirm that B+ voltage is 144.7 ± 1.5V. This voltage supplies B+ to the horizontal output and flyback circuits. Source voltage chart 120V AC line input. Set the BRIGHT and the PICTURE to minimum by using the PICTURE menu. Use cold or hot ground for the (-) lead of the DVM as needed. D-BOARD LOCATION TEST POINT VOLTAGE +B2 by IC802 TPD145 144.7 ± 1.5V 9V by Q804 TPD9 8.2 ± 1.5V 15V by D827 TPD14 14.6 ± 2.0 V 15V (VER) by D827 TPD15 15.0 ± 1.5 V +15V (VER) by D827 TPD17 -14.9 ± 1.5V SOUND by D829 TPD30 31.8 ± 2.0V 220V by D511 TPD7 210.0 ± 9.0V A-BOARD LOCATION TEST POINT VOLTAGE MAIN 12V by IC883 TPA6 12.0 ± 0.5V MAIN 9V by R887 TPA7 9.0 ± 0.5V MAIN 5V by IC881 TPA8 5.0 ± 0.3V STBY 3.3V by IC005 TPA16 3.3 ± 0.2V BTL 30V by TNR002 TPA18 30.0 ± 2.0V High voltage check 1. Select an active TV channel and confirm that horizontal is in sync. 2. Adjust BRIGHTNESS and CONTRAST using PICTURE icon menu so video just disappears. http://tsn.pstc.panasonic.com/viewing/NA/CT-36SL13G/SVC/s1100000000x.html (2 of 3)05.12.2008 0:01:45

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187

Components and test points within doted areas are located on trace side.
B+ voltage check
1.
Set the BRIGHT and PICTURE to minimum by using the PICTURE menu.
2.
Connect the DVM between TPD145 and cold ground.
3.
Confirm that B+ voltage is 144.7 ± 1.5V. This voltage supplies B+ to the horizontal output and
flyback circuits.
Source voltage chart
120V AC line input. Set the BRIGHT and the PICTURE to minimum by using the PICTURE menu. Use
cold or hot ground for the (-) lead of the DVM as needed.
D-BOARD
LOCATION
TEST POINT
VOLTAGE
+B2
by IC802
TPD145
144.7 ± 1.5V
9V
by Q804
TPD9
8.2 ± 1.5V
15V
by D827
TPD14
14.6 ± 2.0 V
15V (VER)
by D827
TPD15
15.0 ± 1.5 V
+15V (VER)
by D827
TPD17
-14.9 ± 1.5V
SOUND
by D829
TPD30
31.8 ± 2.0V
220V
by D511
TPD7
210.0 ± 9.0V
A-BOARD
LOCATION
TEST POINT
VOLTAGE
MAIN 12V
by IC883
TPA6
12.0 ± 0.5V
MAIN 9V
by R887
TPA7
9.0 ± 0.5V
MAIN 5V
by IC881
TPA8
5.0 ± 0.3V
STBY 3.3V
by IC005
TPA16
3.3 ± 0.2V
BTL 30V
by TNR002
TPA18
30.0 ± 2.0V
High voltage check
1.
Select an active TV channel and confirm that horizontal is in sync.
2.
Adjust BRIGHTNESS and CONTRAST using PICTURE icon menu so video just disappears.