Sony Ericsson XR-C7500RX Section Servicing Notes, Table of Contents, General, Diagrams

TABLE OF CONTENTS

1. SERVICING NOTES 2

2.GENERAL

	Location of Controls	3
	Setting the Clock	3
	Installation	4
	Connections	6
3.	DISASSEMBLY	10
4.	ASSEMBLY OF MECHANISM DECK	12
5.	MECHANICAL ADJUSTMENTS	15

6.ELECTRICAL ADJUSTMENTS

Test Mode	15
Tape Deck Section	16
Tuner Section	16

7.DIAGRAMS

7-1.		Block Diagram – TUNER/TAPE Section –	17
7-2.		Block Diagram – MAIN Section –	18
7-3.		Block Diagram
		– DISPLAY/KEY CONTROL Section –	19
7-4.		Block Diagram
		– BUS CONTROL/POWER SUPPLY Section –	20
7-5.	Note for Printed Wiring Boards and
		Schematic Diagrams	21
7-6.	Printed Wiring Board
		– Main Board (Component Side) –	22
7-7.	Printed Wiring Board
		– Main Board (Conductor Side) –	23
7-8. Schematic Diagram – Main Board (1/4) –			24
7-9. Schematic Diagram – Main Board (2/4) –			25
7-10.		Schematic Diagram – Main Board (3/4) –	26
7-11.		Schematic Diagram – Main Board (4/4) –	27
7-12.		Printed Wiring Board – SUB Board –	28
7-13.		Schematic Diagram – SUB Board –	28
7-14.		Printed Wiring Board – KEY Board –	30
7-15.		Schematic Diagram – KEY Board –	31
7-16. IC Pin Function Description			34
8.		EXPLODED VIEWS	40
9.		ELECTRICAL PARTS LIST	43

Notes on chip component replacement

•Never reuse a disconnected chip component.

•Notice that the minus side of a tantalum capacitor may be dam- aged by heat.

Flexible Circuit Board Repairing

•Keep the temperature of the soldering iron around 270 ˚C dur- ing repairing.

•Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).

•Be careful not to apply force on the conductor when soldering or unsoldering.

SECTION 1

SERVICING NOTES

MODEL IDENTIFICATION

The XR-C7500R and XR-C7500RX have three types of MAIN boards respectively.

– MAIN BOARD (Conductor Side) –

TUX1

R606 R607

CN201

	TYPE A	TYPE B	TYPE C
R606	⋅	a	a
R607	a	⋅	a

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