Pioneer DEH-1530RXU/EW, DEH-1500RXU/EW, DEH-1510XU/EE service manual EW model FM/AM Tuner Unit

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EW model

-FM/AM Tuner Unit

A

	AM ANT	FMRF
1	ATT

7 6

WC CE2

IC 3 EEPROM

5.0V

OSC

13	5		10	9	8	11	14		18	19	20
ROM VDD		SL	DI	CK	CE1	LDET		DO	RDS CK	RDS DATA	RDS LOCK
			IC 5
			5V	← 3.3V
LPF

21

RDS_HSLK

IC 2

Rch 24

B

FM ANT

3 ATT

FMRF

RF adj

ANT adj

IC 1

3.3V

MIXER, IF AMP

T51

CF52

CF51

AUDIOGND

RFGND

OSCGND

DGND

NC

VCC

_3.3VDD

IC 4

3.3V

3.3V

← 2.5V

2.5V

2

12

15

22

16

4

17

2.5V

DET, FM MPX,

RDS DECODER

Lch 23

C

No.	Symbol	I/O	Explain
1	AMANT	I	AM antenna input	AM antenna input high impedance AMANT pin is connected with
				an all antenna by way of 4.7∝ H. (LAU type inductor) A series circuit
				including an inductor and a resistor is connected with RF ground for
				the countermeasure against the ham of power transmission line.
2	RFGND		RF ground	Ground of antenna block
3	FMANT	I	FM antenna input	Input of FM antenna 75Ω Surge absorber(DSP-201M-S00B)is necessary.
4	VCC		power supply	The power supply for analog block. D.C 8.4V ± 0.3V
5	SL	O	signal level	Output of FM/AM signals level
6	CE2	I	chip enable-2	Chip enable for EEPROM		” Low” active
7	WC	I	write control	You can write EEPROM, when EEPROM write control is “ Low” .
				Ordinary non connection
8	CE1	I	chip enable-1	Chip enable for AF•RF ” High” active
9	CK	I	clock	Clock
10	DI	I	data in	Data input
11	LDET	O	lock detector	“ Low” active
12	OSCGND		osc ground	Ground of oscillator block
13	ROM_VDD		power supply	Power supply for EEPROM pin 13 is connected with a power supply of
				micro computer.
14	DO	O	data out	Data output
15	DGND		digital ground	Ground of digital block
16	NC		non connection	Not used
17	VDD_3.3		power supply	The power supply for digital block. 3.3V ± 0.2V
18	RDS_CK	O	RDS clock	Output of RDS clock(2.5V)
19	RDS_DATA	O	RDS data	Output of RDS data(2.5V)
20	RDS_LOCK	O	RDS lock	Output unit “ High” active(2.5V) (RDS_LOCK turns over by the
				external transistor. “ Low” active)
21	RDS_HSLK	O	RDS high speed	Output unit “ High” active(2.5V)(RDS_HSLK turns over by the
			lock	external transistor. “ Low”		active)
22	AUDIOGND		audio ground	Ground of audio block
23	L ch	O	L channel output	FM stereo “ L-ch” signal output or AM audio output
24	R ch	O	R channel output	FM stereo “ R-ch” signal output or AM audio output
							59
					DEH-1500R/XU/EW

D

E

F

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