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Cordless Telephone

SP-R5100

CONTENTS

1

. Safety Precautions

2

. Specification

3

. Function Structures

4

. Test Mode

5

. Component Pin Array

6

. Alignment & Adjustment

7

. Trouble Shooting

8

. PCB Views

9

. Electrical Parts List

10

. Exploded Views and Parts List

11

. Block Diagram

12

. Schematic Description and Diagrams

Cordless Telephone

SERVICE 

Manual 

S E C R E T

Summary of Contents for SP-R5100

Page 1: ...cation 3 Function Structures 4 Test Mode 5 Component Pin Array 6 Alignment Adjustment 7 Trouble Shooting 8 PCB Views 9 Electrical Parts List 10 Exploded Views and Parts List 11 Block Diagram 12 Schematic Description and Diagrams Cordless Telephone SERVICE Manual SECRET ...

Page 2: ... of L state it is S field tracking mode E DEMODE OUT This pin presents demodulated signal pin number 18 F SLICE CTRL It controls the tracking or holding of data slice pin number 17 In case of H state it keeps data slice In case of L state it is tracking mode G PLL CTRL This pin controls PLL power pin number 20 This pin is active L state H PLL ENABLE This pin is synthesizer enable input pin number ...

Page 3: ...nitial data it Ø s ID number telephone numbers for the memory dial function and country adaptation value including volume data 2 4 RSSI DETECTOR The RF module outputs DC voltage in proportion to the RF input level through the internal RSSI circuit and the MPU checks the point of the DC voltage level This pin is used for channel and slot scanning 2 5 POWER SUPPLY CIRCUIT The power used in HANDSET i...

Page 4: ...voltage In case of L state it is S field tracking mode E DEMODE OUT This pin outputs demodulated signal pin number 18 F SLICE CTRL It controls the tracking or hold of data slice pin number 17 In case of H state it keeps data slice In case of L state it is tracking mode G PLL CTRL This pin controls PLL power pin number 20 This pin is active L state H PLL ENABLE This pin is synthesizer enable input ...

Page 5: ...e TX audio signal passed from audio process circuit The DTMF signal which is generated by MPU itself send to SPEECH IC through TX audio path The ring signal coupled with the C 505 goes to the U501 PHOTO COUPLER and goes to the MPU with the form of the rectangular wave b POWER SUPPLY CIRCUIT The power supplied from the9V ADAPTOR is divided into3 parts The one regulated to5V by the U504 KA7805 is su...

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