Jvc RX-E112-RSL, RX-E111-RSL Service Manual

DVD

SOUND

DVD STB VCR TV

ANALOG/DIGITAL

TAPE

INPUT

BASS+CENTER

SOUND

123

Ð

BASS

TEST

456

BASS BOOST

TREBLE

+

789

EFFECT

Ð

TREBLE

10

RETURN FM MODE

TA/NEWS/INFO

SURROUND

ON/OFF

PTY PTY

ENTER

SURROUND

MODE

PTY

SEARCH

CHANNEL VOLUMETV VOL

TV/VIDEO

VCR

CONTROL

/REW

PLAY

TUNING

DOWN UP

STOP PAUSE

REC

RM-SRXE111R

REMOTE CONTROL

HOME CINEMA CONTROL CENTER

RX-E112RSL/RX-E111RSL

SERVICE MANUAL

HOME CINEMA CONTROL CENTER

RX-E112RSL
RX-E111RSL

AUDIO

VCR

SLEEP TV DIRECT

FM

Ð

REAR-L

Ð

REAR-R

Ð

SUBWOOFER

Ð

0

DVD MENU

DIMMER

FF/

+10

+100

DISPLAY MODE

MUTING

TVSTB

AM

+

+

+

+

RDS
DVD

MENU

STANDBY/ON

PHONES

STANDBY

TV DIRECT

CONTROL

ADJUST

SETTING

MEMORY

HOME CINEMA CONTROL CENTER

DVD STB VCR TV TAPE FM/AM

ANALOG

PL

LCR

SLEEP MODE TA

INFONEWS AUTO MUTING

AUTO

DSP HP

LPCM

SUBWFRLFE

AUTO SR

DOLBY D

LS S RS

DTS

INPUT ATT

DVD STB VCR TV TAPE

STTUNED

RDS

MH
KH
VOL

Z

Z

FM/AM

INPUT

ANALOG/DIGITAL

INPUT ATT

SURROUND

SURROUND

ON/OFF

MODE

B ------------------------ U.K.
E ---- Continental Europe
EN ----- Northern Europe
EV ------- Eastern Europe

MASTER VOLUME

Area suffix

Each difference points

MODEL

RX-E112RSL
RX-E111RSL

Source indication lens color

GRAY SMOKE

CLEAR LIGHT GREEN

Contents

Safety precautions --------------------------------------------------------1- 2
Disassembly method -----------------------------------------------------1- 3
Adjustment method -------------------------------------------------------1- 8
Description of major ICs -------------------------------------------------1- 9~22

COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.

No.21085

Apr. 2002

RX-E112RSL/RX-E111RSL

1. This design of this product contains special hardware and many circuits and components specially for safety
purposes. For continued protection, no changes should be made to the original design unless authorized in
writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services
should be performed by qualified personnel only.

2. Alterations of the design or circuitry of the product should not be made. Any design alterations of the product
should not be made. Any design alterations or additions will void the manufacturer`s warranty and will further
relieve the manufacture of responsibility for personal injury or property damage resulting therefrom.

3. Many electrical and mechanical parts in the products have special safety-related characteristics. These

characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily
be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which
have these special safety characteristics are identified in the Parts List of Service Manual. Electrical
components having such features are identified by shading on the schematics and by ( ) on the Parts List in
the Service Manual. The use of a substitute replacement which does not have the same safety characteristics
as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or
other hazards.

4. The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be
separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of
electric shock and fire hazard. When service is required, the original lead routing and dress should be
observed, and it should be confirmed that they have been returned to normal, after re-assembling.

5. Leakage currnet check (Electrical shock hazard testing)
After re-assembling the product, always perform an isolation check on the exposed metal parts of the product
(antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the
product is safe to operate without danger of electrical shock.
Do not use a line isolation transformer during this check.

Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage
current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return
path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.).

Alternate check method
Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms per volt or more
sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15 F AC-type capacitor
between an exposed metal part and a known good earth ground.
Measure the AC voltage across the resistor with the AC
voltmeter.
Move the resistor connection to each exposed metal part,
particularly any exposed metal part having a return path to
the chassis, and meausre the AC voltage across the resistor.
Now, reverse the plug in the AC outlet and repeat each
measurement. Voltage measured any must not exceed 0.75 V
AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.).

0.15 F AC TYPE

1500 10W

Good earth ground

AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)

Place this
probe on
each exposed
metal part.

!

1. This equipment has been designed and manufactured to meet international safety standards .

2. It is the legal responsibility of the repairer to ensure that these safety standards are maintained.

3. Repairs m ust be made in accordance with the relevant safety standards.

4. It is essential that safety critical components are replaced by approved parts.

5. If mains voltage selector is provided, check setting for local voltage.

Burrs formed during molding may
be left over on some parts of the
chassis. Therefore, pay attention to
such burrs in the case of
preforming repair of this system.

In regard with component parts appearing on the silk-screen pr inted side (parts side) of the PWB diagrams, the
parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " "
mark nearby are critical for safety.

(This regulation does not correspond to J and C version.)

1-2

RX-E112RSL/RX-E111RSL

Disassembly method

Removing the top cover (See Fig.1)

1.

Remove the four screws A attaching the top cover on
both sides of the body.

2.

Remove the three screws B on the back of the body.

3.

Remove the top cover from behind in the direction of
the arrow while pulling both sides outward.

Removing the front panel assembly

(See Fig.2 and 3)

Prior to performing the following procedure, remove
the top cover.

1.

Cut off the tie band fixing the harness, if needed.

2.

Disconnect the card wire from the connector CN411
on the audio board, CN412 on the input board and
CN204 on the power supply board.

3.

Disconnect the harness form the connector CN209
on the power supply board.

Tie band

Main board

CN411

Audio board

Top cover

A

(both sides)

CN412

B

Fig.1

Front panel assembly

CC

Input board

Fig.2

CN209

D

(attaching the

headphone jack board)

CN204

Power supply
board

4.

Remove the three screws C attaching the front
panel assembly.

5.

Remove the screw D attaching the headphone jack
board.

6.

Remove the four screws E attaching the front panel
assembly on the bottom of the body. Detach the front
panel assembly toward the front.

Removing the rear panel (See Fig.4)

Prior to performing the following procedure, remove
the top cover.

1.

Remove the power cord stopper from the rear panel
by moving it in the direction of the arrow.

2.

Remove the nineteen screws F & G attaching the
each boards to the rear panel.

3.

Remove the four screws H attaching the rear panel
on the back of the body.

Rear panel

F

E

(Bottom side)

Front panel assembly

E

Fig.3

Power cord

stopper

Fig.4

F

GF

HHHH

1-3

RX-E112RSL/RX-E111RSL

Removing the input board (See Fig.5)

Prior to performing the following procedure, remove
the top cover and rear panel.

1.

Disconnect the card wire from the connector CN412
and CN512 on the input board.

Removing the tuner board
(See Fig.5 and 6)

Prior to performing the following procedure, remove
the top cover and rear panel.

1.

Disconnect the connector CN111 and CN112 on the
tuner board and draw out the tuner board in the
direction of the arrow (see fig.5).

2.

Disconnect the connector CN513 and CN514 on the
relay board (tuner) and draw out the relay board
(tuner) in the direction of the arrow (see fig. 6).

Removing the DSP board (See Fig.5 and 6)

Prior to performing the following procedure, remove
the top cover and rear panel.

1.

Disconnect the connector CN681 on the DSP board
and draw out the DSP board in the direction of the
arrow (see fig.5).

2.

Disconnect the connector CN511 on the relay board
(DSP) and draw out the relay board (DSP) in the
direction of the arrow (see fig.6).

CN112
CN111

Tuner board

Relay board(tuner)

CN412

CN513

CN514

CN512

Fig.5

CN681

DSP board

Input board

Removing the audio board (See Fig.7)

Prior to performing the following procedure, remove
the top cover, rear panel, input board, tuner board,
DSP board and relay boards (tuner & DSP).

Remove the harness band[1] fixing the harness.

1.
Disconnect the card wire from the connector CN411

2.
on the audio board.

Disconnect the harness from the connector CN224

3.
/CN225 on the audio board.

Disconnect the harness from the connector CN515,

4.
CN516 and CN517 on the main board.

Remove the three screws I attaching the audio board.

5.

1-4

CN516
CN515

Main board

CN517

CN411

Audio board

CN511

Relay board(DSP)

Fig.6

I

Harness band[1]

CN224

/CN225

Fig.7

RX-E112RSL/RX-E111RSL

Removing the main board with speaker
board (See Fig.8 to 10)

Prior to performing the following procedure, remove
the top cover, rear panel, input board, DSP board
and relay board (DSP).

1.

Disconnect the harness from the connector CN515,
CN516 and CN517 on the main board (see fig.7).

2.

Remove the harness band[1] (see fig.7) and harness
band[2] fixing the harness.

3.

Disconnect the harness from the connector CN707
on the power supply board .

4.

Disconnect the harness from the connector CN202
and CN226/CN227 on the main board .

5.

Remove the five screws J and two screws K
attaching the main board.

6.

Remove the two screws L attaching the heat sink to
the main board.

7.

Disconnect the connector of each amp. board.

J

K

Main

board

J

CN707
CN226/CN227

CN202
Harness

Speaker board

Fig.8

Heat sink

L

Main board (reverse side)

power supply

board

band[2]

Removing the each amp. board of Cch,
Lch, Rch, SLch and SRch (See Fig.11)

Prior to performing the following procedure, remove
the top cover and main board.

1.

Remove the two screws M attaching the Cch amp.
board and remove the Cch amp. board.

2.

Remove the two screws N attaching the Lch amp.
board and remove the Lch amp. board.

3.

Remove the two screws O attaching the Rch amp.
board and remove the Rch amp. board.

4.

Remove the two screws P attaching the SLch amp.
board and remove the SLch amp. board.

5.

Remove the two screws Q attaching the SRch amp.
board and remove the SRch amp. board.

Rch amp. board

SLch amp. board

SRch amp. board

Main board

CN704

CN703

CN702

R

P

Fig.9

Fig.10

(SLch)

Heat sink

Lch amp. board

Cch amp. board

CN701

Speaker board

N

(Lch)

CN705

R

Removing the Heat sink (See Fig.11)

Prior to performing the following procedure, remove
the top cover, main board and each amp. board.

Remove the four screws R attaching the two

1.
brackets to the heat sink and remove the two
brackets.

Bracket

Q

(SRch)

O

Fig.11

(Rch)

M

(Cch)

Bracket

1-5

RX-E112RSL/RX-E111RSL

Removing the power supply board

(See Fig.12)

Prior to performing the following procedure, remove
the top cover.

1.

Disconnect the card wire from the connector CN204
on the power supply board.

2.

Disconnect the harness from the connector CN201,
CN209 and CN707 on the power supply board.

3.

Disconnect the harness from the connector CN226
/CN227 on the main board

4.

Remove the three screws S attaching the power
supply board and pull out the power supply board
removing the hook.

5.

Unsolder the three harness connected to the power
supply board (If necessary, cut off the band fixing the
harness on the side of the base chassis).

Removing the power transformer

(See Fig.12 and 13)

Prior to performing the following procedures, remove
the top cover.

S

CN209

CN204

Hook

CN707

CN226

/CN227

CN201
CN202

J

(fixing the

earth wire)

Power supply

board

S

PW201
PW203

Solder

PW202

S

Power
transformer

R

Power
transformer
board

1.

Cut off the tie band.

2.

Disconnect the harness from the connector CN217
on the power/fuse board.

3.

Disconnect the harness from the connector CN201
on the power supply board and CN202 on the main
board.

4.

Remove the one screw J and remove the earth wire.

5.

Remove the four screws R attaching the power
transformer.

Removing the power/fuse board

(See Fig.13)

Prior to performing the following procedure, remove
the top cover.

1.

Remove the screw G attaching the power/fuse board
to the rear panel (see fig. 4).

2.

Disconnect the harness from the connector CN217
on the power/fuse board (If necessary, cut off the
band fixing the harness on the side of the base
chassis).

Power cord

CN217

Tie band

Fig.12

Tie band

Solder
(on the reverse side)

Power/fuse board

Fig.13

U

Solder

3.

Remove the screw U attaching the power/fuse
board.

4.

Unsolder the power cord and other harness
connected to the power/fuse board.

1-6

RX-E112RSL/RX-E111RSL

<Front panel assembly>

Removing the system control board with
power switch board (See Fig.1 to 3)

Prior to performing the following procedure, remove
the top cover and front panel assembly.

1.

Remove the two screws A attaching the power
switch board.

2.

Remove the eight screws B attaching the system
control board.

3.

Disconnect the card wire from the connector CN401,
CN402 and CN412 on the system control board.

4.

Remove the switch buttons and indicator esc., if
needed.

Removing the headphone jack board
(See Fig.1)

Prior to performing the following procedure, remove
the top cover and front panel assembly.

1.

Remove the screw C attaching the headphone jack
board to the front panel assembly.

Front panel assembly (inner side)

BBA

System control board

Power switch board (forward side)

Headphone jack board

Power switch board

C

Headphone

jack board

Fig.1

C

CN401CN412 CN402

System control board (forward side)

Fig.2

Front panel assembly (inner side)

Indicator esc.

Switch button

Fig.3

1-7

RX-E112RSL/RX-E111RSL

Adjustment method

Power amplifier section

Adjustment of idling current

Measurement terminal B451-B452(Lch) , B453-B454(Rch)
Adjustment volume VR301(Lch) , VR302(Rch)

Attention
This adjustment does not obtain a correct adjustment value immediately after the amplifier is
used (state that an internal temperature has risen).
Please adjust immediately after using the amplifier after turning off the power supply of the
amplifier and falling an internal temperature.

<Adjustment method>

1. Prior to turning the power ON, fully turn the adjusting resistor (VR301(Lch),VR302(Rch)) counterclockwise
direction and connect the DC voltmeter to the measuring terminal(B451-B452(Lch) , B453-B454(Rch)).

2. Set the surround mode OFF.

3. Adjust the resistor so that the measured value becomes 3.2mV immediately after turning the power ON.

4. When the idling current has been stable (about 30 minutes after the power is turned ON),
confirm that the measured value falls within 1.0mV 10mV(2.7mV).

* It is not abnormal though the idling current might not become 0mA even if it is finished to turn variable
resistance (VR301VR302) in the direction of counterclockwise.

Heat sink

Rch amp. board

B453-B454 (Rch)

Lch amp. board

B451-B452 (Lch)

VR302 (Rch)

VR301 (Lch)

1-8

Description of major ICs

UPD784215AGC (IC671) : Unit CPU

1.Pin layout

75 ~ 51

76

~

50

~

RX-E112RSL/RX-E111RSL

100

2.Pin function

Pin No.

1~8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

25~32

33

34,35

36

37,38

39
40
41
42
43
44

45,46

47
48
49
50

51,52

53

54~63

64,65

66
67
68

69,70

71
72

73~80

81

82,83

84
85
86
87
88
89

90~93

94

95~100

1 ~ 25

Symbol

VDD

X2
X1

VSS

XT2
XT1

RESET

AUTODAT A

LOCK

DIGITAL0

FORMAT

CHANNEL

ERR

RSTDET

AVDD

AVREF0

AVSS

AV REF1

RX,TX

DSPCOM

DSPSTS
DSPCLK
DSPRDY

MIDIO_IN/OUT

MICK
MICS
MILP

MIACK

DSPRST

CDTI/CDTO

CCLK

CS

XTS

PD

GND

VDD

ANA/T-TONE

LEF-MIX

S.MUTE

ASW1~4

TEST

26

I/O

O

O

O

I/O

O
O
O
O

O

I/O

O
O
O

O

O
O

O
O

O

Function

-

-

I

-

I
I
I
I
I
I
I
I
I

-

-

-

-

-

-

-

­I

I
I

-

-

-

-

-

-

-

-

-

-

-

-

Non connect
Power supply terminal
Connecting the crystal oscillator for system main clock
Connecting the crystal oscillator for system main clock
Connect to GND
Connecting the crystal oscillator for system sub clock
Connecting the crystal oscillator for system sub clock
System reset signal input
Output of DSP to general-purpose port
Output of DSP to general-purpose port
Output of DSP to general-purpose port
Output of DSP to general-purpose port
Output of DSP to general-purpose port
Output of DSP to general-purpose port
Reset signal input
Power supply terminal
Connect to GND
Connect to GND
Connect to GND
Non connect
Power supply terminal
Not use
Non connect
Communication port
Status communication port
Clock input
Ready signal input
Non connect
Interface I/O terminal with microcomputer
Interface I/O terminal with microcomputer of clock signal
Interface I/O terminal with microcomputer of chip select
Interface I/O termonal with microcomputer
Interface I/O termonal with microcomputer
Non connect
Reset signal output of DSP
Non connect
Interface I/O terminal with microcomputer
Interface I/O terminal with microcomputer of clock signal
Interface I/O terminal with microcomputer of chip select
OSC Select
Non connect
Reset signal output
Connect to GND
Non connect
Power supply
Non connect
Test tone control
Control at output destination of LFE channel
Non connect
Mute of the digital out terminal is controlled
Mute of the audio signal is controlled
Non connect
Selection of digital input selector
Test terminal
Non connect

1-9

RX-E112RSL/RX-E111RSL

AK4527B (IC601) : A/D,D/A Converter

1.Pin layout

LOOP1

LOOP0/SDA/CDTI

DIF1/SCL/CCLK

DIF0/CSN

P/S

MCLK

DZF1

AVSS

AVDD

VREFH

VCOM

SDOS
I2C
SMUTE
BICK
LRCK
SDTI1
SDTI2
SDTI3
SDTO
DAUX
DFS

4443424140393837363534

1
2
3
4
5
6
7
8
9
10
11

AK4527BVQ

T op View

1213141516171819202122

NC

DZFE

TVDD

DVDD

DVSS

PDN

TSTNCADIF

CAD1

33
32
31
30
29
28
27
26
25
24
23

CAD0

DZF2/OVF
RIN+
RIN­LIN+
LIN­ROUT1
LOUT1
ROUT2
LOUT2
ROUT3
LOUT3

2. Pin function (1/2)
No.

1

Pin name
SDOS

I/O

I

SDTO Source Select Pin (Note 1)

Function

"L" : Internal ADC output, "H" : DAUX input

2

3

I2C

SMUTE

I

Control Mode Select Pin
"L" : 3-wire Serial, "H" : I

I

Soft Mute Pin (Note 1)

2

C Bus

When this pin goes to "H", soft mute cycle is initialized.

When returning to "L", the output mute releases.
4
5
6
7
8
9
10
11

BICK
LRCK
SDTI1
SDTI2
SDTI3
SDTO
DAUX
DFS

I

Audio Serial Data Clock Pin

I/O

Input Channel Clock Pin

I

DAC1 Audio Serial Data Input Pin

I

DAC2 Audio Serial Data Input Pin

I

DAC3 Audio Serial Data Input Pin

O

Audio Serial Data Output Pin

I

Sub Audio Serial Data Input Pin

I

Double Speed Sampling Mode Pin (Note 1)

"L" : Normal Speed, "H" : Double Speed
12

NC

-

No Connect

No internal bonding.
13

DZEF

I

Zero Input Detect Enable Pin

"L" : mode 7 (disable) at parallel mode,

zero detect mode is selectable by DZFM2-0 bits at serial mode.

"H" : mode 0 (DZF is AND of all six channels)
14
15
16
17

TVDD
DVDD
DVSS
PDN

-

Output Buffer Power supply Pin, 2.7V~5.5V

-

Digital Power Supply Pin, 4.5V~5.5V

-

De-emphasis Pin, 0V

I

Power-Down & Reset Pin

When "L", the AK4527B is powered-do wn and the control registers are reset to def ault

state. If the state of P/S or CAD0-1 changes, then the AK4527B m ust be reset b y PDN.
18

TST

I

Test Pin

This pin should be connected to DVSS.

1-10

RX-E112RSL/RX-E111RSL

2. Pin function (2/2)
Pin name

No.
19

20

21
22
23
24
25
26
27
28
29
30
31
32
33

34

35
36
37
38

39
40

41

42

43

44

NC

ADIF

CAD1
CAD0
LOUT3
ROUT3
LOUT2
ROUT2
LOUT1
ROUT1
LIN­LIN+
RIN­RIN+
DZF2

OVF

VCOM

VREFH
AVDD
AVSS
DZF1

MCLK
P/S

DIF0
CSN

DIF1
SCL/CCLK

LOOP0

SAD/CDTI

LOOP1

I/O

No Connect

­ No internal bonding.

Analog Input Format Select Pin

I

"H" : Full-differential input, "L" : Single-ended input
Chip Address 1 Pin

I

Chip Address 0 Pin

I

DAC3 Lch Analog Output Pin

O

DAC3 Rch Analog Output Pin

O

DAC2 Lch Analog Output Pin

O

DAC2 Rch Analog Output Pin

O

DAC1 Lch Analog Output Pin

O

DAC1 Rch Analog Output Pin

O

Lch Analog Negative Input Pin

I

Lch Analog Positive Input Pin

I

Rch Analog Negative Input Pin

I

Rch Analog Positive Input Pin

I

Zero Input Detect 2 Pin (Note 2)

O

When the input data of the group 1 follow total 8192LRCK cycles with "0" input data,
this pin goes to "H".
Analog Input Overflow Detect Pin (Note 3)

O

This pin goes to "H" if the analog input of Lch or Rch is overflows.
Common Voltage Output Pin,AVDD/2

O

Large external capacitor around 2.2uF is used to reduce power-supply noise.
Positive Voltage Reference Input Pin,AVDD

I

Analog Power Supply Pin,4.5V~5.5V

­Analog Ground Pin,0V

­Zero Input Detect 1 Pin (Note 2)

O

When the input data of the group 1 follow total 8192 LRCK cycles with "0" input data,
this pin goes to "H".
Master Clock Input Pin

I

Parallel / Serial Select Pin

I

"L" : Serial control mode, "H" : Parallel control mode
Audio Data Interface Format 0 Pin in parallel mode

I

Chip select pin in 3-wire serial control mode

I

This pin should be connected to DVDD at I2C bus control mode
Audio Data Interface Format 1 Pin in parallel mode

I

Control Data Clock Pin in serial control mode

I

I2C = "L" : CCLK(3-wire Serial), I2C = "H" : SCL(I2CBus)
Loopback Mode 0 Pin in parallel control mode

I

Enables digital loop-back from ADC to 3 DACs.
Control Data Input Pin in serial control mode

I/O

I2C = "L" : CDTI(3-wire Serial), I2C = "H" : SDA(I2CBus)
Loopback Mode 1 Pin (Note 1)

I

Enable all 3 DAC channels to be input from SDTII.

Function

Notes : 1. SDOS, SMUTE, DFS, and LOOP1 pins are ORed with register data if P/S = "L".

2. The group 1 and 2 can be selected by DZFM2-0 bit if P/S = "L" and DZFME = "L".

3. This pin becomes OVF pin if OVFE bit is set to "1" at serial control mode.

4. All input pins should not be left floating.

1-11

RX-E112RSL/RX-E111RSL

M61501FP (IC501) : Analog sound processor

1. Block diagram

40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
41
42
43
44
45
46
47
48
49
50

0/6/10dB

51
52
53
54
55
56
57
58
59
60
61
62
63
64

65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80

A

A

SW2

A

B

M

B

M

0/6/10dB

B

M

A
B

B
A

ATT

SLch Vol

Lch Vol
BYPASS

TONE

10/2dB

SW1

0/-6dB

Cch Vol

Bus boost

MCU I/F

0/6/10dB

+

SWch Vol

Bus boost

L+R+C

SRch Vol

0/6/10dB

Rch Vol

BYPASS

TONE

0/6/10dB

SW1

M

A
B

B
A

ATT

0/-6dB

B

A

B

M

0/6/10dB

B

M

SW2

10/2dB

24
23
22
21
20
19

A

18
17
16
15
14
13

A

12
11
10

9
8
7
6
5
4
3
2
1

2. Pin function (1/2)
Pin No.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21

Symbol
NC
ING1
RECOUT1B
RECOUT1A
SELOUT1
TINA1
TINB1
TCC
TCB1
TCA1
TONEOUT1
SWOUT
AGND
RchAIN
RchBIN
RchOUT
RchBBO
RchBBI
AGND
SRchAIN
SRchBIN

I/O

-

I
O
O
O

I

I

I

I

I
O
O

-

I

I
O
O

I

-

I

I

Function
No connect
G signal input of right side input selector
B through signal output of right side
A through signal output of right side
Signal output after 0/-6dB of right side
Tone A signal input of right side
Tone B signal input of right side
Tone C control of right side
Tone B control of right side
Tone A control of right side
Tone signal output of right side
L+R+C signal output
Analog ground for Rch
A select signal input of Rch
B select signal input of Rch
Signal output of Rch
Bus boost control output of Rch
Bus boost control input of Rch
Analog ground for SRch
A signal input of SRch
B signal input of SRch

1-12

RX-E112RSL/RX-E111RSL

2. Pin function (2/2)
Pin No.

22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80

Symbol
SRchOUT
AGND
NC
NC
SWchAIN
SWchBIN
SWchOUT
AVSS
DVDD
CLOCK
DATA
LATCH
DGND
AGND
AGND
CchOUT
CchBIN
CchAIN
NC
NC
AGND
SLchOUT
SLchBIN
SLchAIN
AGND
LchBBI
LchBBO
LchOUT
LchBIN
LchAIN
AGND
NC
TONEOUT2
TCA2
TCB2
TCC2
TINB2
TINA2
SELOUT2
RECOUT2A
RECOUT2B
ING2
NC
NC
INF2
INE2
IND2
INC2
INB2
INA2
AVDD
AVDD
INA1
INB1
INC1
IND1
INE1
ING1
NC

I/O

O

-

-

-

O

-

-

-

-

-

O

-

-

-

O

-

O
O

-

-

O

O
O
O

-

-

-

-

-

Function
Signal output of SRch
Analog ground for SWch
No connect

No connect
I
I

I
I
I

I
I

I
I

I

I
I

I
I
I
I
I

I

I
I
I
I
I
I

I
I
I
I
I
I

A select signal input of SWch

B select signal input of SWch

Signal output of SWch

Analog power supply

Digital power supply

Digital clock input

Digital data input

Digital latch input

Digital ground

Analog ground

Analog ground

Signal output of Cch

B select signal input of Cch

A select signal input of Cch

No connect

No connect

Analog ground for Cch

Signal output of SLch

B select signal input of SLch

A select signal input of SLch

Analog ground for SLch

Bus boost control input of Lch

bus boost control output of Lch

Signal output of Lch

B select signal input of Lch

A select signal input of Lch

Analog ground for Lch

No connect

Tone signal output of left side

Tone A control of left side

Tone B control of left side

Tone C control of left side

Tone B signal input of left side

Tone A signal input of left side

Signal output after 0/-6dB of left side

A through signal output of left side

B through signal output of left side

G signal input of left side input selector

No connector

No connector

F signal input of left side input selector

E signal input of left side input selector

D signal input of left side input selector

C signal input of left side input selector

B signal input of left side input selector

A signal input of left side input selector

Analog power supply

Analog power supply

A signal input of right side input selector

B signal input of right side input selector

C signal input of right side input selector

D signal input of right side input selector

E signal input of right side input selector

F signal input of right side input selector

No connect

1-13

RX-E112RSL/RX-E111RSL

LA1838(IC102) : FM AM IF amp. & detector, FM MPX decoder

1. Block diagram
30

ALC

BUFF

FM
S-METER

FM IF

1

2. Pin function

Pin

Symbol

No.

FM IN

1

AM MIX

2

3

FM IF

AM IF

4

GND

5
6

TUNED

STEREO

7

8

VCC

9

FM DET

10

AM SD

FM VSM

11

AM VSM

12
13

MUTE

14

FM/AM

MONO/ST O

15

29

AM

OSC

SD
COMP

S-CLRVE

PM
DET

2

I/O

I

This is an input terminal of FM IF

28

REG

AM

MIX

AM/FM
IF-BUFF

3

27

FM

RF.AMP

AM IF

4

26

AGC

AM
S-METER

GND

Function

DET

5

signal.
This is an out put terminal for AM

O

mixer.

I

Bypass of FM IF

Input of AM IF Signal.

I

I

This is the device ground terminal.

When the set is tuning, this terminal

O

becomes "L".

O

Stereo indicator output. Stereo "L",
Mono: "H"

III

This is the power supply terminal.

I

FM detect transformer.

I

This is a terminal of AM ceramic filter.

O

Adjust FM SD sensitivity.

O

Adjust AM SD sensitivity.

I/O

When the signal of IF REQ of IC121(
LC72131) appear, the signal of FM/AM
IF output. //Muting control input.

Change over the FM/AM input.

I

"H" :FM, "L" : AM

Stereo : "H", Mono: "L"

25

TUNING
DRIVE

6

24

STEREO
DRIVE

7

22

23

P-DET

VCC

89

Pin

Symbol

No.

16

L OUT

17

R OUT

18

19

20

21

22

23

24

25

26

27
28

29

30

L IN

R IN

RO
LO

IF IN

FM OUT
AM DET
AM AGC

AFC

AM RF

REG

AM OSC

OSC BUFFER

21

DECODER
ANIT-BIRDIE

VCO
384KHz

10

20

STEREO
5N
SW

FF
38k

11

I/O

O

Left channel signal output.

O

Right channel signal output.

Input terminal of the left channel post

I

18

19

MUTE

FF

/

19k

2

12 13

FF
19k

/

LS

Function

17 16

PILOT
DET

14

AMP.

Input terminal of the right channel

I

post AMP.

Mpx Right channel signal output.

O
O

Mpx Left channel signal output.

I

Mpx input terminal

FM detection output.

O

AM detection output.

O

This is an AGC voltage input terminal

I

for AM

I

This is an output terminal of voltage
for FM-AFC.

AM RF signal input.

I

Register value between pin 26 and pin28

O

desides the frequency width of the
input signal.

I

This is a terminal of AM Local
oscillation circuit.

AM Local oscillation Signal output.

O

15

1-14

LC72136N (IC121) : PLL frequency synthesizer

1. Pin layout

FM/ST/VCO

2. Block diagram

XT

FM/AM

CE

DI

CLOCK

DO

AM/FM

SDIN

1
2
3
4
5
6
7
8
9
10
11

22
21
20
19
18
17
16
15
14
13
12

XT
GND
LPFOUT
LPFIN
PD
VCC
FMIN
AMIN

IFCONT
IFIN

RX-E112RSL/RX-E111RSL

1

22

16

15

3

4
5
6

17

21

3. Pin function

Pin

Symbol

No.
1
2
3

4

5
6

7

8
9
10
11

XT

FM/AM

CE

DI

CLOCK

DO

FM/ST/VCO

AM/FM

LW

MW

SDIN

Reference

Driver

Swallow Counter

1/2

C

2B

I/F

Power

on

Reset

Function

I/O

X'tal oscillator connect (75kHz)

I

LOW:FM mode

O

When data output/input for 4pin(input) and

I

Swallow Counter

1/16,1/17 4bit

1/16,1/17 4bit

12bit

Programmable

DriverS

Data Shift Register & Latch

7821113

6pin(output): H
Input for receive the serial data from

I

controller
Sync signal input use

I

Data output for Controller

O

Output port
"Low": MW mode

O

Open state after the power on reset

O

Input/output port

I/O

Input/output port

I/O

Data input/output

I/O

Phase

Detector

Charge Pump

Unlock

Detector

Universal

Counter

Pin
No.

12

IFCONT

13
14

15

16
17

18

19

LPFOUT

20
21
22

Symbol

IFIN

AMIN

FMIN

VCC

PD

LPFIN

GND

XT

18
19

20

12

I/O

Function
IF counter signal input

I

IF signal output

O

Not use

-

AM Local OSC signal output

I

FM Local OSC signal input

I

Power suplly(VDD=4.5-5.5V)

­When power ON:Reset circuit move
PLL charge pump output(H: Local OSC

O

frequency Height than Reference frequency.
L: Low Agreement: Height impedance)
Input for active lowpassfilter of PLL

I

Output for active lowpassfilter of PLL

O

Connected to GND

­X'tal oscillator(75KHz)

I

1-15

RX-E112RSL/RX-E111RSL

NJU3713 (IC402) : L.E.D. driver

1.Pin layout

P5

2.Block diagram

P6
P7
P8

Vss

P9

P10

p11

P12

1
2
3
4
5
6
7
8
9

18
17
16
15
14
13
12
11
10

VDD
P4
P3
P2
P1
CLR
STB
CLK
DATA

DATA

CLK

STB
CLR

3.Pin function

Shift

resistor

Control Circuit

Latch

circuit

P1
P2
P3
P4
P5

P11
P12

1-16

PIN No.

1~4

5

6~9

10
11
12
13
14
15

16~17

18

I/O

O

­O
O

I
I

I
O
O
O

-

Symbol

P5, P6, P7, P8

Vss

P9, P10, P11, P12

DA TA

CLK
STB
CLR

P1
P2

P3, p4,

DD

V

Function
Parallel conversion data output terminal.
Connect to GND.
Parallel conversion data output terminal.
Serial data input terminal.
Clock signal input terminal.
Strobe signal input terminal.
Clear signal input terminal.
Parallel conversion data output terminal.
Parallel conversion data output terminal.
Parallel conversion data output terminal.
Power supply terminal.

SAA6588 (IC191) : RDS detector

RX-E112RSL/RX-E111RSL

1. Pin layout

MRO

NC

GND

OSCO

OSCI
VSSD
VDDD
DAVN

SDA

SCL

1
2
3
4
5
6
7
8
9
10

20
19
18
17
16
15
14
13
12
11

NC
CIN
SCOUT
Vref
MPX
VSSA
VDDA
NC
GND
NC

2. Pin function
Pin

No.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20

MRO

GND

OSCO

OSCI
VSSD
VDDD
DAVN

SDA
SCL

GND

VDDA
VSSA

MPX

Vref

SCOUT

CIN

NC

NC

NC

NC

FunctionI/OSymbol

Multi-path rectifier output

O

Non connect

­Test control input pin

I

Oscillator output

O

Oscillator input

I

Digital ground (0V)

­Digital power supply (5V)

­Data available output (active LOW)

O

IC-bus serial data I/O

I/O

IC-bus serial clock input

I

Non connect

­Connect to ground

­Non connect

­Analog power supply (5V)

­Connect to ground

­Multiplex input signal

I

Reference voltage output

O

Band-pass filter output

O

Comparator output

O

Level input

I

3. Block diagram

16

MPX

13

AFIN

LVIN

20

VDDA

14

8th ORDER

BAND-PASS

DETECTOR

POWER
SUPPLY

AND RESET

VSSA

SCOUT

57 kHz

PAUSE

15

18

17
Vref

19

CLOCK

COMPARATOR

MULTI-PATH

DETECTOR

TEST

CONTROL

3

TCON

RDS/RDBS

DEMODULATOR

SIGNAL QUALITY

DETECTOR

OSCILLATOR

AND CLOCK

1

MRO

OSCI OSCO

VDDDCIN
7

DAVN

12
MAD

11

10

8

2

9

PSWN

MPTH

SDA
SCL

RDS/RDBS

DECODER

INTERFACE

REGISTER

IC-BUS SLAVE

TRANSCEIVER

5

4

6
VSSD

1-17