Motorola Gm Series Detailed 6864115b62 B Manual

							Notes For All Schematics and Circuit Boards2-5
5.0 Notes For All Schematics and Circuit Boards
* Component is frequency sensitive. Refer to the Electrical Parts List for value and usage.
1.Unless otherwise stated, resistances are in Ohms (k = 1000), and capacitances are in picofarads 
(pF) or microfarads (µF).
2.DC voltages are measured from point indicated to chassis ground using a Motorola DC 
multimeter or equivalent. Transmitter measurements should be made with a 1.2 µH choke in 
series with the voltage probe to prevent circuit loading.
3.Interconnect Tie Point Legend: 
16_8MHz 16.8MHz Reference Frequency
3V3 Regulated 3.3V Supply Voltage for Voice Storage
5V Regulated 5V Supply Voltage for RF Circuitry
5V Regulated 5V Supply Voltage (Control Head)
5V RF Regulated 5V Supply Voltage for RF Circuitry
5V SOURCE 5V Signal to Switch On Control Head
5VD Regulated 5V Supply Voltage for Digital Circuitry
9V3 Regulated 9.3V Supply Voltage
9V3FLT Filtered 9.3V Supply Voltage
A+ 13.2V Supply Voltage
ADDR *P Address Lines
AN Analog Lines to Analog to Digital Converter
ANALOG INPUT 2 External Keypad Matrix Column Signal
ANALOG INPUT 3 External Keypad Matrix Row Signal
BATTERY VOLTAGE Battery Voltage Sense Line
BL A GREEN Back Light Anode Green
BL A RED Back Light Anode Red
BL GREEN Green Back Light Control
BL K GREEN Back Light Cathode Green
BL K RED Back Light Cathode Red
BL KP Green Green Keypad Back Light Control
BL KP RED Red Keypad Back Light Control
BL LCD GREEN Green Display Back Light Control
BL LCD RED Red Display Back Light Control
BL RED Red Back Light Control
BOOT CNTRL Bootstrap Mode Enable Signal
BOOT MODE Boot Mode Select
BOOT PWR ON Control Head Switch On Signal
BOOT SCI RX Serial Communication Interface Receive Line
BOOT SCI TX Serial Communication Interface Transmit Line
BOOT VPP Boot Mode Select
BUS+ Bi-directional Serial Communication Line
BWSELECT Signal to select between the Ceramic Filter Pairs 
						

							2-6MAINTENANCE
CH ACT Channel Activity Indicator Signal (Fast Squelch)
CH KP ID Control Head Keypad ID (Data) Lines
CH REQUEST Control Head Request from Control Head *P
CLK Clock Signal
CNTLVLTG PA Power Control Voltage
CNTR AUDIO Audio Lines of the Controller
COL x Keypad Matrix Column x
CSX Chip Select Line PCIC / FRACN
DATA Data Signal
DC POWER ON Electronic Switching On or Off of the Radios Voltage Regulators
DISCAUDIO Audio Output Signal from the Receiver IC
ECLK Clock (not used)
EE CS EEPROM Chip Select
EMERGENCY CONTROL Emergency Line to switch on the Radios Voltage Regulators
EXP BD REQ Service Request Line from Expansion Board
EXP1 CS Expansion Board Chip Select 1
EXP2 CS Expansion Board Chip Select 2
EXT KP COL External Keypad Matrix Column Signal
EXT KP ROW External Keypad Matrix Row Signal
EXT MIC External (from Accessory Connector) Microphone Input
EXT SWB+ External Switched 13.2V Supply Voltage
F1200 Interrupt Line from ASFIC CMP
FECTRL 1 Control Voltage for Front End Filter 
FECTRL 2 Control Voltage for Front End Attenuator Switch
FLASH CE Flash Chip Select
FLASH OE Flash Output Enable
FLAT RX SND Option Board Audio Output Signal
FLAT TX RTN Flat TX Input from Option Board and Accessory Connector
FLT A+ Filtered 13.2 V Supply Voltage
GP x IN General Purpose Input x
GP x IN ACC y General Purpose Input x from Accessory Connector Pin y
GP x IN OUT ACC y General Purpose Input /Output x from Accessory Connector Pin 
y
GP x OUT General Purpose Output x
GP x OUT ACC y General Purpose Input x from Accessory Connector Pin y
GPIO General Purpose Input Output Lines
HANDSET AUDIO Handset Audio Output
HOOK Hang-up Switch Input
HSIO High Speed Clock In / Data Out
IF First Intermediate Frequency Signal
IGNITION CONTROL Ignition Line to switch on the Radios Voltage Regulators 
						

							Notes For All Schematics and Circuit Boards2-7
IN 5V RF REG Supply Voltage for 5V Regulator in RF Section
INT KP COL Internal Keypad Matrix Column Signal
INT KP ROW Internal Keypad Matrix Row Signal
INT MIC Internal (from Control Head) Microphone Input
INT SWB Internal Switched 13.2V Supply Voltage
INT SWB+ Internal Switched 13.2V Supply Voltage
IRQ Interrupt Request from Control Head
K9V1 9.1V in Transmit Mode
KEYPAD ID Keypad Identification Line
LCD A0 LCD Control / Display Data Select
LCD CS LCD Chip Select
LCD DATA LCD Data Lines
LCD E RD LCD Enable Read
LCD RW WR LCD Read Write Control
LED CNTRL LED Control Lines
LED GREEN Green LED Control
LED RED Red LED Control
LED YELLOW Yellow LED Control
LOCK Lock Detect Signal from Synthesizer
LSIO Low Speed Clock In / Data Out
LVZIF CS LVZIF Chip Select (not used)
MIC Microphone Input
MISO Serial Peripheral Interface Receive Line
MODIN Modulation Signal into the Synthesizer
MOSBIAS 2 PA Bias Voltage for second Stage
MOSBIAS 3 PA Bias Voltage for third Stage
NOISE BLNKR Noise Blanker Enable (Low Band only)
ON OFF CONTROL Service Request Line from Control Head / Manual Switching On
of the Radios Voltage Regulators
ON OFF SENSE (Control Head) On Off Sense Line to Control Head *P
ON OFF SENSE (Controller) Service Request Line from Control Head
OPT CS Option Board Chip Select
OPT PTT PTT from Option Board
PA PWR SET ASFIC Output Voltage to set the Transmitter Power
PA SWB Switches Supply Voltage for PA Current Control Circuitry
PASUPVLTG 13.2 V Supply Voltage of the Transmitter PA
PCIC MOSBIAS 1 PA Bias Voltage for first Stage
PRESC Prescaler Signal from VCO to Synthesizer
PTT IRDEC Microphone PTT Input
PTT IRDECODER Microphone PTT Input
R W Read Write Signal for RAM / Flash 
						

							2-8MAINTENANCE
RAM CS RAM Ship Select
RDY Service Request Line from Option Board
REF CS Reference Chip Select (not used)
RESET Reset Line
ROW x Keypad Matrix Row x
RSSI Received Signal Strength Indicator
RX ADAPT Flat TX Path Disable during Transmitter Key-up
RX AUD RTN Option Board Input / Output of Receiver Audio Path
RX FLAT FILTERED AUDIO Flat or Filtered Audio to Accessory Connector
RXIN RF Signal from Antenna Switch into the Receiver
RXINJ RF Signal from the VCO into the Mixer
SCI RX Serial Communication Interface Receive Line
SCI TX Serial Communication Interface Transmit Line
SPI Serial Peripheral Interface Bus
SPKR- Negative Audio PA Speaker Output
SPKR+ Positive Audio PA Speaker Output
SQ DET Squelch Detect Signal
SYN *P Clock Signal
TEMP SENSE Temperature Sense Line for LCD
TEMPSENSE Temperature Sense Line from PA to *P
TRB TX/RX VCO Switch Signal
TX AUD RTN Option Board Output to Transmit Audio Path
TX AUD SND Microphone Audio to Option Board
TXINJ RF Signal from the VCO into the Transmitter PA
U DRIVER Supply Voltage for PA Driver
U PREDRIVER Supply Voltage for PA Pre-driver
UNSW 5V Permanent 5V Supply
URX SND Filtered Audio Signal to Option Board
VAG 2.5V Reference Voltage for Analog Circuitry
VCOBIAS 1 Switch Signal from Synthesizer
VCOBIAS 2 Switch Signal from Synthesizer
VCOMOD Modulation Signal into VCO
VCTRL VCO Frequency Control Voltage
VDDA Regulated 5V for Digital Circuitry in RF Section
VOLTAGE SENSE Voltage Sense Line from LCD
VOLUME Volume Pot Output
VOX Voice Operated Transmit Level
VPP Boot Mode Select
VS AUDIOSEL Switch Signal to Enable Option Board Audio Output Signal
VS GAINSEL Voice Storage Gain Select Line
VS INT Voice Storage Interrupt Line 
						

							Notes For All Schematics and Circuit Boards2-9
VS MIC Voice Storage Audio Signal into Microphone Path
VS RAC Voice Storage Row Address Clock Signal
VSF Voltage Super Filtered (5V)
VSTBY 5V Supply for *P when the Radio is switched off
4-LAYER CIRCUIT BOARD DETAIL VIEWING
COPPER STEPS IN PROPER LAYER SEQUENCE
LAYER 1 (L1)
LAYER 2 (L2)
LAYER 3 (L3)
LAYER 4 (L4)
INNER LAYERS SIDE 1
SIDE 2 
						

							2-10MAINTENANCE 
						

							Chapter 3
SERVICE AIDS
1.0 Recommended Test Tools
Table 3-1 lists the service aids recommended for working on the radio. While all of these items are 
available from Motorola, most are standard workshop equipment items, and any equivalent item 
capable of the same performance may be substituted for the item listed.
Table 3-1   Service Aids
Motorola Part 
NumberDescription Application
RLN4460_Portable Test SetEnables connection to audio/accessory jack. 
Allows switching for radio testing.
RKN4081_ Programming Cable with 
Internal RIBIncludes radio interface box (RIB) capability.
RLN4853_10 to 20 Pin AdapterConnects RKN4081_ to the radio accessory 
connector.
RKN4083_ Mobile Programming/Test 
CableConnects radio to RIB (RLN4008_).
GTF374_Program CableConnects RIB to Radio microphone input
RLN4008_ Radio Interface Box Enables communications between radio and 
computer’s serial communications adapter.
HLN8027_Mini UHF to BNC AdaptorAdapts radio antenna port to BNC cabling of 
test equipment.
GPN6133_ Power Supply Provides the radio with power when bench 
testing. 
EPN4040_Wall-Mounted Power SupplyUsed to supply power to the RIB (UK).
EPN4041_ Wall-Mounted Power Supply Used to supply power to the RIB (Euro)
8180384J59Housing Eliminator (short)Test Fixture used to bench test the radio pcb 
8180384L95 Housing Eliminator 
(short + top)Test Fixture used to bench test the radio pcb. 
(Radio using pressure pads to retain pcb)
8180384J60Housing Eliminator 
(medium)Test Fixture used to bench test the radio pcb
8180384J61 Housing Eliminator (long) Test Fixture used to bench test the radio pcb
3080369B71Computer Interface CableConnects the RIB to the Computer (25-pin)
3080369B72 Computer Interface Cable Connects the RIB to the Computer 9-pin
(Use for IBM PC AT - other IBM models use 
the B71 cable above)
6686119B01Removal ToolAssists in the removal of radio control head. 
						

							3-2SERVICE AIDS
2.0 Test Equipment
Table 3-2 lists test equipment required to service the radio and other two-way radios.
Table 3-2   Recommended Test Equipment
Motorola Part 
NumberDescription Characteristics
Application
R2600_NTComms System Analyzer 
(non MPT)This monitor will 
substitute for items 
with an asterisk*Frequency/deviation 
meter and signal 
generator for 
widerange 
troubleshooting and 
alignment
R2680_NT Comms System Analyzer 
( MPT1327) to be ordered 
with 
RLN1022_ (H/W) 
RLN1023_ (S/W)This monitor will 
substitute for items 
with an asterisk*.Frequency/deviation 
meter and signal 
generator for 
widerange 
troubleshooting and 
alignment
*R1072_Digital MultimeterAC/DC voltage and 
current 
measurements
*R-1377_ AC Voltmeter 100µV to 300V, 5Hz - 
1MHz, 10Megohm 
input impedanceAudio voltage 
measurements
WADN133Delay Oscilloscope2 Channel 40MHz 
bandwidth, 
5mV/cm - 20 V/cmWavefor m 
measurements
R1440_
0180305F17
0180305F31
0180305F39
RLN4610
T1013_Wattmeter,
Plug-in Elements
Plug-in Elements
Plug-in Elements
Carry case
RF Dummy LoadThruline 50-Ohm,
±5% accuracy
100W, 25 - 60MHz
25W, 100-250MHz
10W, 200-250MHz
Wattmeter and 
6 elementsTransmitter power 
output 
measurements
S1339_RF Millivolt Meter100mV to 3 VRF.
10kHz to 1.2GHzRF level 
measurements
R1011_/220V 220V Power Supply 0 - 40V 0 - 40A Programmable 
						

							Controlhead GM140/340/640 - PCB 8486146B07 / Schematics4-32.0 Controlhead GM140/340/640 - PCB 8486146B07 / Schematics
D0871 D0872
D0873
D0874
D0875D0876 D0877D0878D0879
D0881 D0884
D0885 D0886
D0887
D0888 2 3 5 7 9
864 10
J0811
JU0852 JU0853
JU0854 4
1
235
R0823
S0861
S0862
S0863 S0864S0865
S0866
ZWG0130114-A
C0802
C0803
C0804
C0805
C0806
C0808
C0809
C0810C0811
C0813
C0815
C0816
C0817
C0818C0819
C0821
C0822 C0823C0824
C0831 C0832 C0833
C0843
D0821
D0822
D0831 12
J0801
1
2
P0801
Q0821
Q0822
Q0823
Q0841 Q0843
Q0871
Q0872
Q0873
Q0874
Q0875
Q0876
Q0877 Q0878
Q0879
Q0881
Q0885
R0810
R0811
R0812
R0813
R0814
R0815 R0816 R0821
R0822
R0824 R0825
R
083
1
R0832
R0833
R0834 R0835
R0836 R0837
R0838
R0839R0841
R0842R0843
R0844
R0845R0847
R0849 R0852 R0853R0854
R0861
R0862R0864
R0866R0867R0871 R0872
R0873
R0874
R0875
R0876R0877 R0878
R0879
R0880R0881
R0885 TP0831
TP0832TP0833
TP0834TP0835
TP0836
TP0837 TP0838
1
4917
33
U0831
1 4 5
8
U0832
3U0833
U0835 VR0811
VR0816 VR0817
VR0821VR0822
VR0823 64 1
1
MOTOROLAc
8486146B07-0
 Controlhead GM140/340/640  - PCB8486146B07ZWG0130114-A    Top Side
ZWG0130113-B   Bottom Side 
						

							4-4Controlhead GM140/340/640 - PCB 8486146B07 / Schematics
HOOK
GROUND
MIC 10 GM300CONTROL HEAD
PTT_IRDECODER 7CONNECTOR
8J0801
9
MICROPHONE
CONNECTOR
SCI_RX BOOT_VPP J0811
RESETBOOT_MODE WARIS
HANDSET_AUDIO 1
CONTROLLER
KEYPAD ID CONTROL HEAD ID
SCI_TX EXT_KP_ROW EXT_KP_COL
FLT_A+
4 5 6
BUS+ 2 3
5V
VR0822
5.6VR0843
2.2K
NU
GND
INPUT
RESET_
7
U0835
MC33464N-45ATRJ0801-8
JU0853
SWITCH C0833R0833
0.1uF
2 47K10K R0844
55
VDD
22
VRH
21
VRL 23
VSS1
VSS2 24
49
VSS3
45
XIRQ 33
XTAL
PE3_AN3 19
PE4_AN4 14
16
PE5_AN5
PE6_AN6 18
PE7_AN7 20 43
RESET28
STRA_AS
30
STRB_RW*
PD1_TXD 50
PD2_MISO 51
PD3_MOSI 52
53
PD4_SCK
PD5_SS* 54PE0_AN0 13
PE1_AN1 15
PE2_AN2 17PC1_AD136
PC2_AD237
PC3_AD338
PC4_AD439
40
PC5_AD5
PC6_AD641
PC7_AD742
PD0_RXD 47
PB1_A911
PB2_A1010
PB3_A119
PB4_A128
7
PB5_A13
PB6_A146
PB7_A155 PC0_AD034 64
PA1_IC2
63
PA2_IC1
62
PA3_OC5_OC1
59
PA4_OC4_OC1
58
PA5_OC3_OC1
57
PA6_OC2_OC1
56
PA7_PA1_OC1
PB0_A812
NC3 4
NC4 26
NC5 3235
NC6
44
NC7
NC848
60
NC9
1
PA0_IC3 29
CLK_E
31
EXTAL
46
IRQ
27
MODA_LIR*
25
MODB_VSTBY
NC1 2
NC1061 3
NC2MC68HC711E9
U0831
7 J0801-11
J0801-7
3 TP0832
50K
NEG
POS
TAB TAB1VARR0823
4.7K R0824 J0811-5
1 0Q0843
NU R0835
100
0 R0839 R0847
22
J0811-4
270 R0814
R0815
0.1uF C0832 13K
C0831
3.3uF J0811-1
1 C0823
.01uF
2
0 62
C0809
NU 82pF
Q0823
D082210 R0813
1 C1
3
C2 2
GND
4 R0812
CSTCC8.00MGU0833 22
5.6V
5
VR0821
100KR0853 8 5.6V VR0823
J0811-10
0
P0801-2
5 4 J0801-9
TP0837 INPUT 2
NC1 3
NC2 5NC36
NC47
8
NC5 RESET1 U0832
MC33064
GND
4
Q0821J0811-6J0801-10
J0801-6
JU0852
SWITCHJU0854 6
1
SWITCH C0804
470pF
0
R0852
100K C0817
82pF J0811-8
7R0845
4.7K NU VR0811
33V
470pF
NU
470pFC0818
C0816
33K R0837NU C0808
470pF470pFC0806
10K
3R0841 R0811
51K
J0811-3 J0811-2
1MEGR0831 VR0816
20V13K
J0811-9R0810
4
TP0833
10K R0821
47K J0801-14
R0849 P0801-1
2.2K R0832J0801-3 J0801-5
TP0838 TP0834 NU
470pF
NU C0810
470pF
3
2
C0819
100K R0854
6
1
J0801-12
R0838
10K J0811-7
R0834
270 20V VR0817
2.2uFJ0801-4
C0822
470pF
NU5
13K
C0821R0816
R082251K
470pF C0815C0811
470pF
TP0831
R0836
10K TP0836J0801-13
J0801-1
NU J0801-2
470pFC0802
C0803
470pF 470pF C0843
C0813
TP0835 470pF
NU C0824
.01uFR0825
1K D0821C0805
82pF
Q0822R0842
47KQ0841
INT_KP_ROWINT_KP_COLUSW_5V 5V
5V 5V
5V FLT_A+
BUS+EXT_KP_ROW MIC EXT_KP_COL
FLT_A+
D08315V
CH_KP_ID(0:7)
LED_CNTRL(0:8) CH_REQUEST
5VCH_REQUEST 5V
5V 5V5V
PTT_IRDEC HOOK
ON_OFF_SENSE ON_OFF_CONTROL
5V
USW_5V VOLUMEVOLUME EXT_KP_ROWEXT_KP_COL PTT_IRDECFLT_A+
FLT_A+5V
5V PTT_IRDECSCI_TX
SCI_TXBUS+ 5V
5V
BL_GREEN ON_OFF_SENSE 5V
HOOK 5V
5VHANDSET_AUDIO
ON_OFF_CONTROL FLT_A+
MIC BUS+ HANDSET_AUDIO
5V
Shown from Front Side
Controlhead GM140/340/640 - Schematic Sheet 1 of 2
ZWG01300239-B