JVC RXE-100-SL Service manual

SERVICE MANUAL

AUDIO/VIDEO CONTROL RECEIVER

RX-E100SL

Area Suffix

RX-E100SL

POWER

TV

DVD

VCR

– SUBWOOFER +TESTSLEEP

1

5

SURROUND

EFFECT

– CENTER +

54

5

BASS

– REAR•L +

DSP MODE

BOOST

7

5

SOUND

– REAR•R +

010

DVD

TV

VCR

TV/VIDEO

FM

CD

+

TV VOL

VOLUME

–

£

1

+

TV/VCR

CH

–

7

RM-SRXE100J

REMOTE CONTROL

HOME THEATER RECEIVER

J C

AUDIO

32

6

5

98

MENU

+10

ENTER

INPUT A/D

AM

MUTING

8

1

POWER

STANDBY

TV DILECT

CONTROL

ADJUST

SETTING

DIGITAL

SURROUND

ANALOG LPCM DOLBY D

DTS

MEMORY

DVD

DVD TV VCR CD FM

HOME THEATER RECEIVER

RX-E100

PRO LOGIC

LCR

SLEEP STTUNED MUTING

DSP

SUBWFRLFE

DGTL AUTO

LS S RS

INPUT ATT

AUTO

Z

MH KHZ VOL

AM

INPUT

ANALOG/DIGITAL

INPUT ATT

SURROUND

ON/OFF

DSP

MODE

MASTER VOLUME

U.S.A

Canada

Contents

Safety precautions --------------------------------------------------------1- 2 Importance administering point on the safety ---------------------1- 3 Disassembly method -----------------------------------------------------1- 4 Adjustment method -------------------------------------------------------1- 9 Description of major ICs -------------------------------------------------1-10 16

No.20955

May 2001

http://getMANUAL.com

RX-E100SL

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 circuitr y 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 fur ther 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 par ts 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 eachexposed 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. When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer. (Except the JC version)

1-2

Importance administering point on the safety

EP202

LVA10230-A3

TA201

TA202

R205

RX-E100SL

FW201

FW202

FC203

2A-125V

FC204

FC205

2A-125V

FC206

FC201

B410

B411

B413

B412

B414

PW103 PW102 PW101

FC202

5A-125V

B415

CN217

R201

CN207

LVA10230-A2

Caution: For continued protection against risk of fire, replace only with same type 5A/125V for F201, 2A/125V for F202 and F203. This symbol specifies type of fast operating fuse.

Precaution: Pour eviter risques de feux, remplacez le fusible de surete de F201 comme le meme type que 5A/125V, et 2A/125V pour F202 et F203. Ce sont des fusibles suretes qui functionnes rapide.

^

1-3

RX-E100SL

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.

Disconnect the card wire from connector CN411 on the audio board and CN204 on the power supply board in the front panel assembly.

2.

Cut off the tie band fixing the harness.

A

Tie band

Main

board

CN411

Audio

board

Top cover

2

A

B

2

C

Fig.1

Front panel assembly

C

CN204

Power supply

board

3.

Remove the three screws C attaching the front panel assembly.

4.

Remove the four screws D 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 eleven screws E attaching the each boards to the rear panel on the back of the body.

E

Rear panel

D

Fig.2

Fig.3

Front panel assembly

D

E

Cord stopper

3.

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

1-4

F

E

F

Fig.4

E

F

Removing each board connected to the rear side of the audio board

(See Fig.5 to 7)

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

1.

Cut off the tie band fixing the harness.

2.

Disconnect the tuner board and DSP board from connector CN111 and CN681 on the each Relay board.

3.

Disconnect the Relay board from connector CN503 and CN501 on the audio board.

4.

Disconnect the card wire connected to connector CN522 on the Input board.

CN111

Tuner

board

CN522

RX-E100SL

CN681

DSP

board

Input

board

Fig.5

Tuner

board

CN503

CN111

CN681

DSP board

Fig.6

Relay board

Relay

board

CN522

Input

board

CN501

Fig.7

1-5

RX-E100SL

Removing the audio board (See Fig.8)

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

1.

Disconnect the card wire from connector CN411 on the audio board.

2.

Disconnect the harness from connector CN205 on the audio board.

3.

Disconnect the harness from connector CN515, CN516, and CN517on the main board.

4.

Remove the harness band fixing the harness.

5.

Remove the three screws G attaching the audio board assembly.

Removing the main board (See Fig.9)

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

1.

Remove the harness band fixing the harness.

2.

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

3.

Disconnect the harness from connector CN202 and CN206 on the main board .

CN515

CN411

G

Audio

board

Main

board

H

I

H

Main board

Harness

band

CN517

Fig.8

H

Fig.9

CN516

CN205

power supply board

Power transformer

Power / Fuse

board

I

CN707 CN206

CN202

Harness

band

4.

Remove the five screws H and the two screws I attaching the main board.

Removing the Heat sink (See Fig.10 to 11)

1.

Remove the ten screws K and four screws L attaching the heat sink.

2.

Remove the two screws J attaching the heat sink from the rear side of main board.

J

Heat sink

L

Main board

rear side

K

Fig.10

K

Fig.11

J

K

L

1-6

Removing the power supply board

(See Fig.12)

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

1.

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

2.

Disconnect the harness connected to connector CN201 and CN707 on the power supply board (If necessary, cut off the band fixing the harness on the side of the base chassis).

3.

Disconnect the harness connected to connector CN206 on the main board

N

CN204

CN707

Hook

CN206

CN201

CN202

RX-E100SL

Power supply board

N

PW201 PW203

Solder

PW202

N

M

4.

Remove the three screws N attaching the power supply board.

5.

Unsolder the three harnesses connected to the power supply board.

Removing the power transformer

(See Fig.12 and 13)

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

1.

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

2.

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

3.

Remove the four screws M attaching the power transformer.

Removing the power / fuse board

(See Fig.13)

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

Power transformer

Power transformer board

CN217

Power cord

Tie band

M

Fig.12

Tie band

O

Solder

Power / fuse board

Fig.13

1.

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

2.

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

3.

Remove the screw O attaching the power / fuse board.

1-7

RX-E100SL

Removing the system control board / power switch board (See Fig.14)

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

1.

Remove the two screws P attaching the power switch board.

2.

Remove the seven screws Q attaching the system control board.

Q

System control board

Fig.14

Power switch

board

Q

P

1-8

RX-E100SL

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.

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 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(2.3mV).

* 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

B453-B454 (Rch)

VR302 (Rch)

VR301 (Lch)

B451-B452 (Lch)

1-9

RX-E100SL

Description of major ICs

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

2. Pin function (1/2) No.

1

2

3

4 5 6 7 8 9 10 11

12

13

14 15 16 17

18

Pin name SDOS

I2C

SMUTE

BICK LRCK SDTI1 SDTI2 SDTI3 SDTO DAUX DFS

NC

DZEF

TVDD DVDD DVSS PDN

TST

4443424140393837363534

1 2 3 4 5 6 7 8 9 10 11

I/O

I

SDTO Source Select Pin (Note 1)

AK4527BVQ

Top View

1213141516171819202122

NC

DZFE

TVDD

DVDD

DVSS

PDN

TSTNCADIF

Function

CAD1

CAD0

33 32 31 30 29 28 27 26 25 24 23

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

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

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.

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

-

No Connect No internal bonding.

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)

-

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.

I

Test Pin This pin should be connected to DVSS.

AK4527(1/2)

1-10

RX-E100SL

Pin function (2/2)

Pin name

No.

NC

19

ADIF

20

CAD1

21

CAD0

22

LOUT3

23

ROUT3

24

LOUT2

25

ROUT2

26

LOUT1

27

ROUT1

28

LIN-

29

LIN+

30

RIN-

31

RIN+

32

DZF2

33

OVF

VCOM

34

VREFH

35

AVDD

36

AVSS

37

DZF1

38

MCLK

39

P/S

40

DIF0

41

CSN

DIF1

42

SCL/CCLK

LOOP0

43

SAD/CDTI

LOOP1

44

No Connect

I/O

No internal bonding.

-

Function

Analog Input Format Select Pin "H" : Full-differential input, "L" : Single-ended input

I

Chip Address 1 Pin Chip Address 0 Pin

I

DAC3 Lch Analog Output Pin

I

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

O

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)

I

When the input data of the group 1 follow total 8192LRCK cycles with "0" input data,

O

this pin goes to "H". Analog Input Overflow Detect Pin (Note 3) This pin goes to "H" if the analog input of Lch or Rch is overflows.

O

Common Voltage Output Pin,AVDD/2 Large external capacitor around 2.2uF is used to reduce power-supply noise.

O

Positive Voltage Reference Input Pin,AVDD Analog Power Supply Pin,4.5V~5.5V

I

Analog Ground Pin,0V

Zero Input Detect 1 Pin (Note 2)

When the input data of the group 1 follow total 8192 LRCK cycles with "0" input data,

O

this pin goes to "H". Master Clock Input Pin Parallel / Serial Select Pin

I

"L" : Serial control mode, "H" : Parallel control mode

I

Audio Data Interface Format 0 Pin in parallel mode Chip select pin in 3-wire serial control mode

I

This pin should be connected to DVDD at I2C bus control mode

I

Audio Data Interface Format 1 Pin in parallel mode Control Data Clock Pin in serial control mode

I

I2C = "L" : CCLK(3-wire Serial), I2C = "H" : SCL(I2CBus)

I

Loopback Mode 0 Pin in parallel control mode Enables digital loop-back from ADC to 3 DACs.

I

Control Data Input Pin in serial control mode I2C = "L" : CDTI(3-wire Serial), I2C = "H" : SDA(I2CBus)

I/O

Loopback Mode 1 Pin (Note 1) Enable all 3 DAC channels to be input from SDTII.

I

AK4527(1/2)

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-E100SL

UPD784215AGC103 (IC671) : UNIT CPU

1.Pin layout

75 ~ 51

76

~

50

~

100

1 ~ 25

26

2.Pin function Pin No. Symbol I/O Function

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

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 3D-ON 3D-ON

ANA/T-TONE

REF-MIX

D.MUTE S.MUTE

ASW1~4

TEST

Non connect

Power supply terminal

Connecting the crystal oscillator for system main clock

O

Connecting the crystal oscillator for system main clock

I

Connect to GND

Connecting the crystal oscillator for system sub clock

O

Connecting the crystal oscillator for system sub clock

I

System reset signal input

I