Service manual

Diagrams 73
Table 6-4. General Schematic Notes
1. Schematic sheets are not intended for component-level troubleshooting. Component values and ratings do
not match the values used on all models.
2. All resistors are in ohms ±1%, 1/8W, unless otherwise specified.
3. All capacitors are in microfarads unless otherwise specified.
4. Signal lines that are terminated by flags continue on other sheets, and may also go to other locations on the same
sheet. Example: CVPROG (SH.2 8C); "SH.2 8C" indicates the sheet number and the coordinates on that sheet
where the CVPROG signal line goes.
5. Unterminated signal lines go to a least one other location on the same sheet.
6. Unless otherwise noted, bias connections to integrated-circuit packages are as follows:
Common + 5V
14-pin packages pin 7 pin 14
16-pin packages pin 8 pin 16
20-pin packages pin 10 pin 20
5.00 V /div 10 us/div
TEST SIGNAL FROM SIGNAL GENERATOR
READBACK DAC (U515 pin 6)
TEST POINT 29 30
5.00 V /div 10 us/div
5.00 V /div 10 us/div
1.00 V /div 0.2 ms/div
1.00 V /div 0.2 ms/div
TEST POINT 31 THRU 34
TEST POINT 39 40
Figure 6-1. Test Point Waveforms for Table 6-3 (sheet 1 of 2)