SONY PLMA55
Service Manual

5. Data Processing Certain adjustment items require the microprocessor data to be read out or the displayed data (hexadecimal numbers) on jigs or adjusting remote commander to be calculated to get adjustment data. In such a case, convert hexadecimal numbers into decimal numbers once, then make calculation, and convert its result into hexadecimal number as adjustment data. Table 1 shows hexadecimal � decimal number conversion.
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Hexadecimal � Decimal number conversion.
Lower digit of hex. 0 Higher digit of hex. 0 1 2 3 4 5 6 7 8 9 A (A) 1 B (b) C (c) D (d) E (E) F (F) 0 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 1 17 33 49 65 81 97 113 129 145 161 177 193 209 225 241 2 18 34 50 66 82 98 114 130 146 162 178 194 210 226 242 3 19 35 51 67 83 99 115 131 147 163 179 195 211 227 243 4 20 36 52 68 84 100 116 132 148 164 180 196 212 228 244 5 21 37 53 69 85 101 117 133 149 165 181 197 213 229 245 6 22 38 54 70 86 102 118 134 150 166 182 198 214 230 246 7 23 39 55 71 87 103 119 135 151 167 183 199 215 231 247 8 24 40 56 72 88 104 120 136 152 168 184 200 216 232 248 9 25 41 57 73 89 105 121 137 153 169 185 201 217 233 249 1 2 3 4 5 6 7 8 9 A (A) B (b) C (c) D (d) E (E) F (F)

10 26 42 58 74 90 106 122 138 154 170 186 202 218 234 250

11 27 43 59 75 91 107 123 139 155 171 187 203 219 235 251

12 28 44 60 76 92 108 124 140 156 172 188 204 220 236 252

13 29 45 61 77 93 109 125 141 157 173 189 205 221 237 253

14 30 46 62 78 94 110 126 142 158 174 190 206 222 238 254

15 31 47 63 79 95 111 127 143 159 175 191 207 223 239 255

Table 1.
Note: Data in ( ) are displayed on jig or adjusting remote commander. Example: If display on jig or adjusting remote commander is BD (bd) As higher digit of hex. number is B (b) and lower digit is D (d), the intersection �189� of 1 and 2 in Table 1 is the target decimal number.

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