Motorola GP series Manual de usuario

Professional Radio

GP Series

Keypad and Flex

Service Information

Issue: November 2004

Computer Software Copyrights

The Motorola products described in this manual may include copyrighted Motorola computer programs stored

in semiconductor memories or other media. Laws in the United States and other countries preserve for

Motorola certain exclusive rights for copyrighted computer programs, including the exclusive right to copy or

reproduce in any form, the copyrighted computer program. Accordingly, any copyrighted Motorola computer

programs contained in the Motorola products described in this manual may not be copied or reproduced in

any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola

products shall not be deemed to grant, either directly or by implication, estoppel or otherwise, any license

under the copyrights, patents or patent applications of Motorola, except for the normal non-exclusive royalty-

free license to use that arises by operation of law in the sale of a product.

iii

Table of Contents

Chapter 1 THEORY OF OPERATION

1.0 Keypad and Flexible Connectors .........................................................................1-1

1.1 Keypad ...........................................................................................................1-1

1.2 Flexible Connectors........................................................................................1-1

2.0 Troubleshooting Chart .........................................................................................1-2

Chapter 2 PCB / SCHEMATICS / PARTS LISTS

1.0 Allocation of Schematics and Circuit Boards .......................................................2-1

1.1 Flexible Connectors........................................................................................2-1

1.2 Keypad PCBs .................................................................................................2-1

2.0 PCB/Schematic Diagrams and Parts List: Flexes................................................2-3

2.1 Keypad - Controller Flex.................................................................................2-3

2.2 Universal Connector Flex ...............................................................................2-4

3.0 PCB/Schematic Diagrams and Parts List: Keypad ..............................................2-5

3.1 PCB 8480574Z06 - Diagram ..........................................................................2-5

3.2 PCB 8480574Z06 - Parts List.........................................................................2-7

3.3 PCB 8480682Z04 - Diagrams ........................................................................2-8

3.4 PCB 8480682Z04 - Parts List.......................................................................2-10

Chapter 1

THEORY OF OPERATION

1.0 Keypad and Flexible Connectors

1.1 Keypad

The keypad block diagram is shown in Figure 1-1. U602 is a comparator that will compare the

voltage when any one of the keypad row or keypad column keys is being pressed. Therefore when a

key is being pressed, it will send a message to the microprocessor through the output (KEY_INT)

telling it that a key has been pressed. The microprocessor then sample the analog to digital voltages

at the keypad row and keypad column and map it with a table so that the key pressed being can be

identified. Once the key has been identified, the message that corresponds to the key will show up

at the display.

The LED_EN setting is set by the codeplug. When the value is set to high, the LED does not light up

during power up and vice versa.

Figure 1-1 Keypad Block Diagram

1.2 Flexible Connectors

Flexible ribbon circuits (flexes) are used to connect the keypad and radio front panel components

with the circuit boards. The flexes are locked into place in their connectors by latches which must be

released before the flexes may be disconnected during maintenence disassembly.

Two types of flexible ribbon circuits are used in the radios:

■Keypad/Controller Interconnect flex - used for connecting the keypad with the main board

circuits.

■Universal Flex connector - used to make connections to the Speaker, Microphone and

accessory connector.

40 pin connector

Comparator

Keypad

Button

LED

Display

18 pin connector

Key_Int

Keypad Column

Keypad

Data

Row

1-2 THEORY OF OPERATION

2.0 Troubleshooting Chart

Figure 1-2 Keypad Board Troubleshooting Chart

Display

Keypad

End

Disconnect and

reconnect 18-pin flex

Disconnect and

reconnect 40-pin flex

Off

if still Off

Chapter 2

PCB / SCHEMATICS / PARTS LISTS

1.0 Allocation of Schematics and Circuit Boards

The printed circuit boards (PCB) and schematic diagrams related to the Flexible Connectors and the

Keypads are shown in the tables below:

1.1 Flexible Connectors

1.2 Keypad PCBs

Table 2-1: Keypad /Controller Flex

Flex : 8480475Z02

Flex Page 2-3

Schematic Page 2-3

Table 2-2: Universal Speaker/Microphone Flex

Flex : 8480549Z05

Flex Page 2-4

Schematic Page 2-4

Table 2-3: Standard Keypad

PCB : 8480574Z06

PCB Layout Page 2-5

Schematic Page 2-6

Parts List Page 2-7

Table 2-4: GP1280 Keypad

PCB : 8480682Z04

Flex Page 2-8

Schematic Page 2-9

Parts List Page 2-10

2-2 PCB / SCHEMATICS / PARTS LISTS

PCB/Schematic Diagrams and Parts List: Flexes 2-3

2.0 PCB/Schematic Diagrams and Parts List: Flexes

2.1 Keypad - Controller Flex

KEYPAD

J100

EXT_MIC

VS_CS

SW_B+

Vddd

VS_AUDSEL

Det_Aud_Snd

Rx_Aud_Rtn

Tx_Aud_Snd

Tx_Aud_Rtn

Flat_Tx_Rtn

Opt_Bd_En

Rdy/Req

Rx_Aud_Snd

INT_EXT_Vdd

Key_Row

Key_Col

PTT

KEY_INT

VS_INT

RESET

LED_EN

OFF_BATT_DATA_OUT

VS_GAINSEL

SrD_Rtn (MISO)

SrD_Snd (DATA)

R_W

LCD_SEL

DB0

DB1

DB2

DB3

DB4

DB5

DB6

DB7

SCK_Snd (CLK)

VS_RAC

Gnd

CONTROLLER

J200

EXT_MIC

VS_CS

SW_B+

Vddd

VS_AUDSEL

Det_Aud_Snd

Rx_Aud_Rtn

Tx_Aud_Snd

Tx_Aud_Rtn

Flat_Tx_Rtn

Opt_Bd_En

Rdy/Req

Rx_Aud_Snd

INT_EXT_Vdd

Key_Row

Key_Col

PTT

KEY_INT

VS_INT

RESET

LED_EN

OFF_BATT_DATA_OUT

VS_GAINSEL

SrD_Rtn (MISO)

SrD_Snd (DATA)

R_W

LCD_SEL

DB0

DB1

DB2

DB3

DB4

DB5

DB6

DB7

SCK_Snd (CLK)

VS_RAC

Gnd

Keypad/Controller Interconnect Flex - Schematic Diagram

J200

J100

<- TO KP

8480475Z02 REV A TO CTRL ->

Keypad-Controller Interconnect Flex -- Front

Issue: Revision Detail:

Release Date:

ILLUSTRATOR REGIONDATE

Application :

MEDIA & COMMUNICATIONS DEPT.

DWG. NO.

EDITOR DATE

Adobe Illustrator 7.0

WARIS CONV. MDC UHF

PCB 8480475Z02-A

Ramesh R. 27/08/1998

LN Chan

ZMY0130082

Penang

27/08/1998

Comments:

27/08/1998

Penang

Used in 6804110J64

Keypad/Controller Interconnect Flex - Assembly

Keypad - Controller Interconnect Flex (PCB No. 8480475Z02)

2-4PCB/Schematic Diagrams and Parts List: Flexes

2.2 Universal Connector Flex

J403

J404

J405

J406

J407

J408

J409

J410

J411

J412

J413

J414

J415

J416

M401

Issue: Revision Detail:

ILLUSTRATOR REGIONDATE

MEDIA & COMMUNICATIONS DEPT.

DWG. NO.

WARIS CONV. MDC UHF

PCB 8480549Z03-B

Ramesh R.

27/08/1998

ZMY0130083

Penang

View from Top Side

13 PIN UNIVERSAL CONN

EXT_SPKR+

EXT_SPK-

OPT_B+

EXT_MIC

OPT_SEL_2

OPT_SEL_1

GND

RX_DATA

TX_DATA

J404

J405

J406

J407

J408

J409

J410

J411

J412

SPKR_20

OPT_B+30

RSSI

RX_AUDIO/TX_AUDIO

BOOT_CTRL

J413

J414

J415

J416

C402

100pF

M401

GND

INT_SPK+

INT_SPK-

EXT_SPKR+

EXT_SPK-

DPT_B+

EXT_MIC

OPT_SEL_2

OPT_SEL_1

GND

RX_DATA

TX_DATA

GND

RSSI

RX_AUDIO/TX_AUDIO

BOOT_CTRL

MIC

GND

J403

20 PIN CONN

M400

SPKR_20

Universal Connector Flex - Schematic Diagram

c98

8480549Z03 rev B

C402

M400

Univers

ILLUSTRATOR DA

EDITOR DA

WARIS CON

PCB 8480549

Ramesh R. 27/0

LN Chan 27/0

View from Bottom Side

Universal Connector Flex (8480549Z05)

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