Motorola 880 Service Manual page 109

Circuit Description :
1. Receive IF is 215 MHz
2. TX IF is 120 MHz (instead of 80 MHz)
3. The oscillator Crystal give the same frequency of 13 MHz .
4. External Connector (Butt Plug) support Audio In/Out.
Service Tools :
SKN4843A
SKN4665A
SLN6625A
8109972NO1
8109521LO2
Field Service Plan :
Distributors : Spare boards of DB880 is available; DB890 is not available until October of 97.
Motorola HTCs :Schematics, layouts, L1 and L3 parts lists are available at Error! Bookmark not
defined..
Please contact Error! Bookmark not defined. for any inquires.
Repairability:
1. There are 10 cans on the boards , need heat gun for repair job.
2. The Antenna , Antenna coil and Antenna Tube should stay with the board when you remove the board
from the housing.
3. In case the radio failed for Time Mask or Peak Phase or Drop Call:
Make sure - The metal clip on the rear housing keep contact to the front housing's Metal Paint and the
conductive foam (on the cans next to the U701) keep contact to the cans and the rear housing.
4. Using 980# and 981# switch from DCS Mode to GSM Mode when repairing and
vise versa.
Greater China Cellular Subscriber Division
Product Service Preview
Dual Band 880/890
6680387A72
Extender Board
15 Pin Test Cable w/coax
MCEL 2000
Rear Housing Opening tool (Fixture type)
Rear Housing Opening tool (Screw Driver type )
T6 Torque Bit