Section 7: Replacement Procedures
Page 7-22
CG4 Series Service Manual
7.16 REAL TIME CLOCK BATTERY REPLACEMENT (OPTIONAL)
This section covers the basic mechanical procedures for replacement of the RTC Kit.
1. Remove the Bottom Housing Cover as explained in the 
earlier 
Section 7.3 Removal of the Bottom Housing cover.
2. Disconnect the RTC kit’s cable from the RTC connector on 
the 
MAIN PCB.
3. Locate the RTC board as shown.
4. Remove two screws securing the RTC board to the printer.
5. Remove the RTC battery IC from the board and replace with 
the new 
RTC battery IC. 
6. Follow the above steps in reverse sequence, to reassemble 
the parts. 
Notes:
• When installing the RTC battery IC, ensure the orienta-
tion is correct. The 
black dot on the corner of the RTC 
battery IC
 should be align to the marking indicate “1” on 
the 
RTC board.