Motorola Radio Mcs2000 Vol 1 68p81083c20 A Manual

 
Test Equipment, Service Aids, and Tools3-3 
*  Available through Taunusstein Parts only. 
The following table lists the tools recommended for working on the radio; 
these also are available from Motorola. Note that the R-1070A workstation 
requires the use of a speciÞc heat focus head for each of the components on 
which this item is used. Each of these heat focus heads must be ordered 
separately.  
The use of Mini UHF Adapters will have damaging effects on the RF 
Antenna Connector which might lead...

 
3-4Test Equipment, Service Aids, and Tools 
  
Connection of Control Head Extender Cable 
Failure to follow these instructions may cause severe damage to the 
control head. 
Mid Power Chassis 
1.Place radio on bench with Þns facing downward and away.
2.Remove the plastic cover. This position leaves the top side of the PC 
boards fully exposed and the 18 pin connector (see Table 3-4) facing the 
operator. Note that the 18 pin connector is offset left of center.
3.Place the control head directly in front...

 
Test Mode and Error Codes 4-1 
Test Mode and Error Codes 
4 
Test Mode 
General 
The test mode allows the technician to monitor a set of radio parameters, to 
conÞgure the radio hardware in a number of predeÞned ways, and have access 
to a number of test procedures. Two basic areas of functionality are provided 
by the Test Mode:
¥  
RF  
 test mode - allows the RF functionality of the radio to be tested.
¥  
CH  
 (Control Head) test mode - allows the radio display, buttons and 
switches to be...

 
4-2Test Mode and Error Codes 
4.To exit either the RF Test Mode or the CH Test Mode turn the radio off.  
Figure 4-1    Dedicated Test Mode Keys on Models I, II and III 
RF/CH Test Mode 
Select 
Pressing the scroll key alternates between the two Mode Select menus   
RF TEST  
 and   
CH TEST  
. To select either the RF or CH test menu press the 
dedicated select key while the desired menu is being displayed.  
RF Test Mode 
On entry into the RF test mode the radio hardware will be conÞgured for the...

 
Test Mode and Error Codes4-3  
¥ 
TPL 
 (Tone Private Line)
¥ 
DPL 
 (Digital Private Line 
)  
¥ 
TLS  
(Trunking Low Speed)
¥ 
THS 
 (Trunking high speed)
¥ 
DTM 
 (Dual Tone Modulation Frequency)
¥ 
M12  
(MDC 1200)
When the appropriate environment is selected the test mode application will 
conÞgure the radio hardware for this environment. 
Channel Numbers 
When the cursor is blinking on the channel number Þeld,   
TM2  
 will scroll 
through channels:  
1  
,  
   
2  
,  
   
...n  
 (n is the...

 
4-4Test Mode and Error Codes 
Self-test errors are classiÞed as either fatal or non-fatal. Fatal errors will inhibit 
user operation, while non-fatal errors will not. Use Table 4-1 to aid in 
understanding particular power-up error code displays.
Due to the nature of fatal ROM & RAM errors, it may not be possible to present 
an error code on the display. In these cases the radio will attempt to display 
the appropriate error code, generate an illegal mode tone for one second and 
then reset its...

 
Disassembly & Reassembly and Replacement Procedures 5-1 
Disassembly & Reassembly
and Replacement Procedures 
5 
General 
The disassembly/reassembly procedure covers all radio models. SpeciÞc model 
information is included in the procedure where relevant. Where nothing is 
indicated, the procedure will be valid for all models.  
DO NOT attempt to disassemble the radio without Þrst referring to the 
CMOS Precautions paragraph on page 2-2 in the Maintenance section. 
Disassembly to Transceiver Board...

 
5-2 Disassembly & Reassembly and Replacement Procedures 
The control head must be removed before removing the transceiver top 
cover.  
4. Pull the control head off of the transceiver while pressing the snaps. (Go 
to ÒRemove the Top CoverÓ section below). 
Remove Front 
Housing 
R 
EMOTE 
 M 
OUNT 
 
V 
ERSION 
 M 
ODELS 
 O 
NLY 
1. Disconnect the Remote Mount Cable by squeezing the top and bottom 
of the connector together, disengaging the bottom snap then the top 
and pulling straight out.
2....

 
Disassembly & Reassembly and Replacement Procedures 5-3  
3. Repeat Step 1. and Step 2. for the opposite side of the radio.  
Figure 5-3   Removing the Top Cover - Mid Power Models 
Remove the Cavity 
Shield 
L 
OW 
 P 
OWER 
 M 
ODELS 
 
O 
NLY 
Eight tabs hold the cavity shield to the chassis. The cavity 
shield is the retaining device for the transceiver board and 
also provides the pressure to heat dissipating devices 
attached to the chassis.
1. Remove the cover gasket from the chassis.
2. Loosen...

 
5-4 Disassembly & Reassembly and Replacement Procedures 
Remove the PA 
Shield 
L 
OW 
  
AND 
 M 
ID 
 P 
OWER 
 
M 
ODELS 
1. Unscrew the three screws that hold the PA shield with T-10 TORX driver.
2. Remove the PA shield by pulling straight up on the attached handle. 
Figure 5-5   Removing the PA Shield (Low and Mid Power Models) 
Remove the 
Transceiver Board 
E 
XCEPT 
 800 MH 
Z 
  
AND 
 
900 MH 
Z 
For 800 MHz and 900 MHz radios go to page 5-6. 
L 
OW 
 P 
OWER 
 M 
ODELS 
1. Remove the...