Ametek Dycor CG1100 Series User Manual page 67

4. Remove the 2-position Furnace connector (TB6) from the upper left-
hand side of the board.
5. Remove the 2-position Cell connector (TB4) from the left-hand side of
the board.
6. Remove the 2-position Thermocouple connector (TB5) from the left-
hand side of the board.
7. Remove the 5-position Mass Flow ribbon cable (J4) from the front of
the board.
8. Remove the 20-position I/O ribbon cable (J1) from the front of the
board.
9. Using a Philips screwdriver, remove the four screws holding the
board.

NOTE
10. Place your fingers between the analog board and the MCU board
in the area of the 64-pin connector and gently work the two boards
apart, wiggling back and forth until they are separated.
Replacing the analog board
Analog Board Analog Board
Screws Screws
Figure 7-8. Analog and MCU boards.
The analog board is attached to the MCU board underneath with a
64-pin connector along the right-hand side of the board. They are very
tightly connected. Figure 7-8.
PCB Bracket PCB Bracket
Standoffs Standoffs
MCU Board MCU Board
1. Line up the 64-pin connector on
the analog board with the pins on
the Mcu board and gently press
together until tightly connected.
2. Replace the four screws using a
Philips screwdriver.
3. Replace the eight cable/connectors
in reverse order as indicated in the
procedure for removing the board.
Service and Parts | 7-9