JVC RX-8012-PSL Service manual

SERVICE MANUAL

AUDIO/VIDEO CONTROL RECEIVER

RX-8012PSL

US --------- Singapore

RX-8012PSL

Area suffix

CATV/DBS VCR 1 TV AUDIO

DVD MUILTIDVD

CD

CDR

TV/DBS VIDEO PHONO

TAPE/MD

VCR 1 VCR 2

DSP

ANALOG/DIGITAL

SURROUND

MODE INPUTON/OFF

LINE DIF.ECT BOOST EFFECT

231

MENU

MIDNIGHT

TEST CTR TONE

MODE

564

ENTER

SUBWFR

L/R BAL∗CENTER

SOUND

∗

∗

7/P

89

REAR L ∗REAR R

DIGITAL EQ

MUTING

∗

∗

0 +1010

RETURN FM MODE 100
CATV/DBS
CONTROL

CONTROL

BAL L

∗

+−+−+

LEVEL TV VOL

CH/

∗

TV/VIDEO

BAL R

∗

PLAY

MENU

TEXT

/REW

PAUSE

DISPLAY

SET

REC

DOWN – TUNING – UP

PAUSE

STOP

A/V CONTROL RECEIVER

FM/AM

USB

LIVENESS

VOLUME

FF/

CONTROL

SLEEP

ROOMBASS

SIZE

+

−

EXIT

SPEAKERS ON/OFF

SUBWOOFER OUT ON/OFF

PHONES

STANDBY

STANDBY/ON

1

2

FM/AM TUNING FM/AM PRESET FM MODE

DIGITAL

DIGITAL

SURROUND

SURROUND ON/OFF

USB AUDIO

S-VIDEO VIDEO

PUSH OPEN

MEMORY

INPUT

ANALOG/DIGITAL

INPUT ATT

VIDEO

MIDNIGHT MODEDSP MODE

L—AUDIO—R

AUDIO/VIDEO CONTROL RECEIVER

SOUCE NAME

TV SOUND/DBSVIDEOVCR 2VCR 1DVDDVD MULTI

SOUCE NAME

FM / AMUSB AUDIOTAPE / MDCDRCDPHONO

DIGITAL

EQ

EFFECT SETTING

CONTROL

DOWN UP

MASTER VOLUME

LEVEL
ADJUST

LINE DIRECT

BASS BOOST

Contents

Safety precautions -----------------------------------------------------------1-2
Disassembly method --------------------------------------------------------1-3
Adjustment method ----------------------------------------------------------1-9
Self-diagnose function -------------------------------------------------------1-10
Description of major ICs ----------------------------------------------------1-12~26

DIGITAL

COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.

No.21066

Feb. 2002

RX-8012PSL

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 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-8012PSL

Disassembly method

Removing the top cover (See Fig.1)

Remove the four screws A attaching the top cover

1.
on both sides of the body.

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

2.
Remove the top cover from behind in the direction of

3.
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.

Cut off the tie bands.

1.
Disconnect the harness from the connector CN416

2.
(on the video audio board), CN206 (on the video
board) and CN244 (on the S video board) (see fig.8).

Main

board

Audio
board

CN400

Top cover

C

A

B

2

Fig.1

Front panel assembly

C

Power
supply board

T

Tie band

Disconnect the card wire from the connector CN400

3.
on the audio board and CN402 on the power supply
board.

Remove the three screws C which fix the upper

4.
surface of the front panel, and four screws D which fix
the bottom.

Detach the front panel assembly toward the front.

5.
Remove the screw P attaching the bracket for

6.
headphone jack and remove the earth wire (see fig.

19).

Removing the rear panel (See Fig.4)

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

Remove the power cord stopper from the rear panel

1.
by moving it in the direction of the arrow.

E

Fig.2

D

Fig.3

EEE

Front panel assembly

Cord stopper

Remove the thirty six screws E attaching the each

2.
board to the rear panel.

Remove the three screws F attaching the rear panel

3.
on the back of the body.

F

Rear panel

F

Fig.4

E
F

E

1-3

RX-8012PSL

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

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

Cut off the tie bands.

1.
Disconnect the harness from the connector CN721,

2.
CN723 on the main board and CN722 on the center
amp. board.

Remove the fastener which is fixing the small board

3.
to the audio input board.

Draw out the DVD board upwards, disconnecting the

4.
connector CN501, CN243, CN205, CN381 and
CN361 on the DVD board.

Small board

Removing the each board of the tuner, the
audio input, the video audio, the video, the
S video and the DSP (See Fig.7 to 10)

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

Main
board

CN721
CN723

CN361
CN381
CN205

Fastener

Audio input board

Video audio board
Audio input board
Tuner board

CN722 (on
the center
amp. board)

Tie band

DVD board

CN501
CN243

Fig.5

DVD board

Fig.6

Video board

S Video board

DSP board

Remove the tuner board from the connector CN101

1.
on the audio board.

Remove the audio input board from the connector

2.
CN301 on the audio board.

Disconnect the harness from the connector CN416

3.
and remove the video audio board from the
connector CN303 on the audio board.

Disconnect the harness from the connector CN206

4.
and remove the video board from the connector
CN201 on the audio board.

Disconnect the harness from the connector CN244

6.
and remove the S video board from the connector
CN241 on the audio board.

Remove the DSP board from the connector CN601

7.
on the audio board.

CN101

Audio board

CN101

CN301
CN303

CN201

Fig.7

CN416

CN206

CN244

CN241

1-4

Video audio board

S Video board

Video board

Fig.8

RX-8012PSL

S Video board

Video board

Video audio board

Fig.9

Removing the speaker board (See Fig.11)

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

Disconnect the harness from connector CN931/CN932

1.
on the audio board.

Disconnect the harmess from connector CN813 and

2.
CN814 on the main board.

Main board

CN814
CN813

CN931

/CN932

Audio board

DSP board

CN601

Fig.10

Relay board

Power
supply
board

CN71

Tie band

Power
transformer

CN81

Removing the audio board
(See Fig.11 and 12)

Prior to performing the following procedure, remove
the top cover, rear panel, DVD board, tuner board,
audio input board, video audio board, video board, S
video board and DSP board.

Disconnect the harness from the connector CN813

1.
and CN814 on the main board.

Disconnect the harness from the connector CN931

2.
/CN932 on the audio board.

Cut off the tie band.

3.
Disconnect the connector CN71(on the power supply

4.
board) and CN81(on the audio board) and remove the
relay board.

Disconnect the harness from the connector CN831 on

5.
the main board.

Remove the three screws G and one screw H

6.
attaching the audio board.

Speaker board

CN831

G

Audio board

Fig.11

H

Fig.12

1-5

RX-8012PSL

Removing the main board (See Fig.13)

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

Remove the card wire and cut off the tie bands.

1.
Disconnect the harness from the connector CN721,

2.
CN723, CN813, CN814, CN831 and CN881 on the
main board.

Disconnect the harness from the connector CN722

3.
on the center amp. board (see fig.5).

Disconnect the harness from the connector CN811

4.
on the power trans1 board.

Remove the screw H, after removing the relay board

6.
if needed (see fig.11).

Remove the two screws I and the six screws J

7.
attaching the main board.

Removing the heat sink
(See Fig.14a, 14b and 15)

JJ

Card wire

I

Main board

CN831
CN814

CN813

K'

Rear Lch amp. board

Rear Rch amp. board

CN723

CN721

Fig.13

Heat sink

Tie band

K'

Main board (reverse side)

Fig.14a

Front Rch amp. board

Front Lch amp. board

Center amp. board

Tie band

CN811

Power
trans1
board

CN722

H

I

CN881

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

Remove the two screws K' attaching the heat sink to

1.
the reverse side of main board.

Disconnect the five connectors with each amp.

2.
board, and remove the main board.

Remove the four screws K and ten screws L

3.
attaching the heat sink.

Removing the voltage select board

(See Fig.16)

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

Cut off the tie band.

1.
Unsolder six solder parts on the voltage select board.

2.

Main board

CN706

Solder

part

CN705

K

CN702

Fig.14b

L

Amp. board

Fig.15

Fig.16

CN703
CN701

Heat sink

K

Power transformer

Voltage select board

Tie band

Solder part

Voltage selector

1-6

RX-8012PSL

Removing the power transformer

(See Fig.17)

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

Disconnect the harness from the connector CN55

1.
/CN56 and CN811 on the power trans1 board.

Unsolder seven solder parts on the power trans2

2.
board .

Remove the four screws M attaching the power

3.
transformer.

Removing the power/fuse board

(See Fig.17)

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

Unsolder seven solder parts on the power/fuse board.

1.
Remove the screw N attaching the power/fuse board.

2.

Removing the power supply board

(See Fig.18)

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

Cut off the tie band if needed.

1.

M

M

Solder part

Headphone jack board

Power supply board

CN811

CN55/CN56

Power
supply board

Power
trans1 board

Power
transformer

Power
trans2 board

Power/fuse

board

N

Solder part

Power cord

Fig.17

Headphone jack

Disconnect the card wire from the connector CN402

2.
on the power supply board.

Disconnect the harness from the connector

3.
CN55/CN56 on the power trans1 board (see fig.17).

Remove the three screws O attaching the power

4.
supply board and pull out the power supply board
removing the hook.

Unsolder three solder parts on the power supply

5.
board.

Removing the headphone jack board

(See Fig.18 and 19)

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

Disconnect the harness form the connector CN881on

1.
the main board (see fig.13).

Remove the nut fixing the headphone jack.

2.
Remove the screw P attaching the bracket and

3.
remove the bracket.

Drawn out the headphone jack board in the direction

4.
of an inner side.

CN402

Hook

Bracket

O

Fig.18

Fig.19

O

Tie band

O

Tie band

Solder part

P (fixing the

earth wire form
the front panel
assembly)

Headphone

jack

Nut

1-7

RX-8012PSL

<Front panel assembly>

Removing the system control board,
power switch board and switch board

(See Fig.1 to 3)

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

Pull out the volume knob on the front side of the front

1.
panel and remove the nut attaching the system
control board.

Remove the two screws A attaching the power

2.
switch board on the front panel assembly(inner side).

Remove the two screws B attaching the switch

3.
board on the front panel assembly(inner side).

Remove the cords from the three hooks a.

4.
Remove the eight screws C attaching the system

5.
control board from the inner side of the front panel
assembly.

Operation switch panel

Volume knob

Switch board

CC

Front panel assembly

Nut

Fig.1

Front panel assembly(inner side)

Power switch

board

Cords

C

Release the four joints on the back of the front panel

6.
by pushing the joint tabs inward. Remove the
operation switch panel toward the front.

Disconnect the harness from the connector CN420

7.
and CN422 on the system control board.

Release the two hooks b attaching the system

8.

B

Joint

CN420

Joint

System control board

Hook b

Fig.2

Fig.3

Joint

Hook b

A

Joint

Hook a

CN422

Matters that require attention during
replacement of IC400

In case where there is a resistance array:
Both onetime IC and mask IC can be used

In case where there is no resistance array:
Only mask IC can be used

1-8

Resistance array

Adjustment method

Tuner section

1.Tuner range
FM 87.5MHz~108.0MHz
AM(MW) 531kHz~1710kHz

Power amplifier section

Adjustment of idling current

Measurement location B2204-B2205(Lch) , B2213-2214(Rch)
Adjustment part VR787(Lch) , VR788(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.Set the volume control to minimum during this adjustment.(No signal & No load)

2.Set the surround mode OFF.

2.Turn VR787 and VR788 fully counterclockwise to warm up before adjustment.
If the heat sink is already warm from previous use the correct adjustment can not be made.

3.For L-ch,connect a DC voltmeter between B2204 and B2205 (Lch)
And,connect it between B2213 and B2214(Rch).

4.30 minutes later after power on, adjust VR787 for L-ch, or VR788 for R-ch so that the DC voltmeter
value has 1mV~10mV.

RX-8012PSL

* It is not abnormal though the idling current might not become 0mA even if it is finished to turn variable
resistance (VR787,VR788) in the direction of counterclockwise.

Heat sink

B2213, B2214

VR788 (Rch)

VR787 (Lch)

B2204, B2205

1-9

RX-8012PSL

Self-diagnose function

1. Detection of abnormal power supply and voltage

When the power is turned ON, if an abnormality is detected during the signal input at the A/D port (IC901,
pin 2-5, 7) for one second continuously, the status will become STANDBY mode immediately.

When the power is turned ON again, detection of abnormal power supply and voltage will not be carried out
during the first 4 seconds.

Given below is a list of threshold values at the detection of abnormalities.

Pin 2
Micro-computer+5V
Pin 3
Digital+5V
Pin 4
Analog+5V
Pin 5
+12V
Pin 7
Tuner+9V

At abnormal state
(Low voltage)
Analog value
0 - 2.2V
Analog value
0 - 2.2V
Analog value
0 - 2.2V
Analog value
0 - 2.2V
Analog value
0 - 2.2V

At normal state

Analog value

2.2 - 2.8V
Analog value

2.2 - 2.8V
Analog value

2.2 - 2.8V
Analog value

2.2 - 2.8V
Analog value

2.2 - 2.8V

At abnormal state
(High voltage)
Analog value

2.8 - 5.0V
Analog value

2.8 - 5.0V
Analog value

2.8 - 5.0V
Analog value

2.8 - 5.0V
Analog value

2.8 - 5.0V

2. Initial setting on ship

To gain the initial setting on ship, put the power plug in the socket while pressing DOWN key and UP key
together simultaneously, then turn the power ON.

3. Test mode

To enter the test mode, put the power plug in the socket while pressing EFFECT key and UP key together
simultaneously, then turn the power ON.

Workings of test mode:
All FLs are turned ON for 3 seconds. (the FLs, which are divided in two groups, are turned ON alternatively)
A Faster volume UP/DOWN operation can be achieved with the remote controller.

When the power is turned OFF, the test mode will be released.
The FL display returns to normal after the three seconds. Then the STANDBY LED is turned ON (flashing

ON and OFF for each one second) to show the present status being a test mode.

1-10

4. Self-diagnose

To enter the self-diagnose mode, put the power plug in the socket while pressing SETTING key and UP key
together simultaneously, then turn the power ON. With the UP/DOWN key operation, DSP microcomputer,
ROM No.of system microcomputer as well as working status of DSP can be displayed for five seconds.
While the working status is being displayed, the followings items can be switched with the UP/DOWN key
operation.

VERSION of system microcomputer Local microcomputer CH0
Local microcomputer CH01 Local microcomputer CH2
Local microcomputer CH3 Local microcomputer CH4

When the power is turned OFF, the self-diagnose mode will be released.
During the self-diagnose mode, the STANDBY LED is turned ON .
(flashing ON for one second then OFF for three seconds)
FL transient display will be carried out as follows. When the transient display is not carried out,
normal display/workings are carried out.

RX-8012PSL

FL Display

S 0 0 1 1
2 0 0 0 1 2 0 9 0 0

D 0 0

D 0 1

D 0 2

Upper 1 2 3 4 5 digits
Lower 1 2 3 4 5 6 7 8 9 10 digits

Information on VERSION of system microcomputer (IC901)
Example : VER1.1 2000/12/9

Display of communication information on DSP microcomputer (IC581)

Display of communication information on DIR AK4112A (IC551)

Display of communication information on DSP XCA56367 (IC501)

D 0 3

D 0 4 1 1
2 0 0 0 1 2 0 9 0 0

Display of communication information on CODEC AK4527 (IC571)

Information on VERSION of DSP microcomputer (IC581)
Example :VER1.1 2000/12/9

1-11

RX-8012PSL

Description of major ICs

AK4112A (IC551) : 96kHz 24bit DIR

1. Pin layout

2. Block diagram

AVSS

AVDD R MCKO1 MCKO2 XTI XTO

Top

View

28
27
26
25
24
23
22
21
20
19
18
17
16
15RX4/DEF2

CM0/CDTO
CM1/CDTI
OCKS1/CCLK
OCKS0/CSN
MCKO1
MCKO2
DAUX
BICK
SDTO
LRCK
ERF
FS96
P/SN
AUTO

RX1
RX2
RX3
RX4

V/TX

DVDD

DVSS

PDN

Input
Selector

System
Control

Clock
Recovery

DAIF
Decoder

AC-3/MPEG
Detect

AUTO ERF P/S="L"

Clock
Generator

DEM

Error
Detect

X'tal
Oscillator

96kHz
Detect

Audio

I/F

uP I/F

FS96
DAUX

LRCK
BICK
SDTO

TVDD
CSN

CCLK
CDTO
CDTI

1DVDD
2DVSS
3TVDD
4V/TX
5XTI
6XTO
7PDN
8R
9AVDD
10AVSS
11RX1
12RX2/DEF0
13RX3/DEF1
14

3. Pin function

No.

Pin Name

1

DVDD

2

DVSS

3

TVDD

4

V
TX

5

XTI

6

XTO

7

PDN

8

R

9

AVDD

10

AVSS

11

RX1

12

DIF0
RX2

13

DIF1
RX3

14

DIF2
RX4

15

AUTO

Function

I/O

-

Digital Power Supply Pin, 3.3V

-

Digital Ground Pin

-

Input Buffer Power Supply Pin, 3.3V or 5V

O

Validity Flag Output Pin in parallel mode

O

Transmit channel (through data)
Output Pin in serial mode

I

X'tal Input Pin

O

X'tal Output Pin

I

Power-down mode Pin
When "L", the AK4112A is powerd-down and reset.

-

External resister pin
18Kohm +/-1% resistor to AVSS externally.

-

Analog Power Supply Pin

-

Analog Ground pin

I

Receiver Channel 1
This channel is selected in parallel mode
or default of serial mode.

I

Audio Data Interface format 0 Pin in parallel mode

I

Receiver Channel 2 in serial mode

I

Audio Data Interface format 1 Pin in parallel mode

I

Receiver Channel 3 in serial mode

I

Audio Data Interface format 2 Pin in parallel mode

I

Receiver Channel 4 in serial mode

O

Non-PCM Detect Pin
"L": No detect, "H": Detect

No.

Pin Name

16

P/S

17

FS96

18

ERF

19

LRCK

20

SDTO

21

BICK

22

DAUX

23

MCKO2

24

MCKO1

25

OCKS0
CSN

26

OCKS1
CCLK

27

CM1
CDTI

28

CM0
CDTO

Note: All input pins except internal pull-down pins should not be left floating.

Function

I/O

Parallel / Serial Select Pin

I

"L": Serial mode, "H": Parallel mode
96kHz sampling detect pin

O

(RX mode) "H" : fs=88.2kHz or more,
"L" fs=54kHz or Iess.
(X'tal mode) "L" : XFS96=1, "L" : XFS96=0.
Unlock & Parity Error Output Pin

O

"L": No error, "H": Error
Output Channel Clock Pin

I/O

Audio Serial Data Output Pin

O

Audio Serial Data Clock Pin

I/O

Auxiliary audio data input pin

I

Master Clock #2 Output Pin

O

Master Clock #1 Output Pin

O

Output Clock Select 0 Pin in parallel mode

I

Chip Select Pin in serial mode

I

Output Clock Select 1 Pin in parallel mode

I

Control Data Clock Pin in serial mode

I

Master Clock Operation Mode Pin in parallel mode

I

Control Date Input Pin in serial mode

I

Master Clock Source select Pin in parallel mode

I

Control Date Output Pin in serial mode

O

1-12

AK4527B (IC571) : A/D, D/A converter

1.Pin layout

44 ~ 34

1 ~ 11 33 ~ 23

RX-8012PSL

12 ~ 22

2.Block diagram

LIN+
LIN-

RIN+
RIN-

LOUT1

ROUT1

LOUT2

ROUT2

LOUT3

ROUT3

LPF

LPF

LPF

LPF

LPF

LPF

ADC

ADC

DAC

DAC

DAC

DAC

DAC

DAC

HPF

HPF

DA TT

DA TT

DA TT

DA TT

DA TT

DA TT

Audio
I/F

LRCK
BICK

MCLK

SDOUT

SDIN1
SDIN2
SDIN3

DAUX

Format

Converter

SDOS
SDTO
SDTI1

SDTI2
SDTI3

Block Diagram (DIR and AC-3) DSP are external parts)

3. Pin function (1/2)

Pin No.

1

Symbol
SDOS

I/O

SDTO Source select pin

I

Function

"L" : Internal ADC output, "H" : DAUX input
ORed with serial control register if P/S="L".

2

OCKS

MCKO Clock frequency select pin

I

"L" : MCLK, "H" : MCLK/2. ORed with serial control register if P/S= "L".
3
4
5
6
7
8
9

10
11

MIS
BICK
LRCK
SDTI1
SDTI2
SDTI3
SDTO
DAUX
DFS

Connect to GND

I

Audio serial data clock pin

I

Input/Output channel clock pin

I/O

DAC1 Audio serial data input pin

I

DAC2 Audio serial data input pin

I

DAC3 Audio serial data input pin

I

Audio serial data output pin

O

AUX Audio serial data input pin

I

Double speed sampling mode pin

I

"L" : Normal speed, "H" : Double speed, the ADC is powered down.

ORed with serial control register if P/S="L".

12

DEM1

De-emphasis pin

I

ORed with serial control register if P/S="L"

1-13

RX-8012PSL

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

13

14
15
16
17

18

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

Symbol
DEM0

MCKO
DVDD
DVSS
PD

XTS

ICKS1
ICKS0
CAD1

CAD0

LOUT3
ROUT3
LOUT2
ROUT2
LOUT1
ROUT1
LIN­LIN+
RIN­RIN+
DZF2
VCOM

VREFH
AVDD
AVSS
XTI
XTO
MCKI
P/S

DIF0
CS
DIF1
CCLK
LOOP0

CDTI
LOOP1

CDTO

I/O

I

De-emphasis Pin
ORed with serial control register if P/S="L"

O

Master clock output pin

-

Digital power supply pin

-

Digital ground pin

I

Power-down & Reset pin
When "L", the AK4527 is powered-down and the control registers are reset
to default state. If the state of CAD0-1 changes, then the AK4527
must be reset by PDN.

I

X'tal oscillator Select/Test mode pin
"H" : X'tal Oscillator selected
"L" : External clock source selected

I

Input clock select 1 pin

I

Input clock select 0 pin

I

Chip address pin
Used during the serial control mode.

I

Chip address pin
Used during the serial control mode.

O

Lch #3 analog output pin

O

Rch #3 analog output pin

O

Lch #2 analog output pin

O

Rch #2 analog output pin

O

Lch #2 analog output pin

O

Rch #1 analog output pin

I

Lch analog negative Input Pin

I

Lch analog positive Input Pin

I

Rch analog negative Input Pin

I

Rch analog positive Input Pin

O

Zero Input detection pin, 2PIN

O

Common voltage output pin,AVDD/2
Large external capacitor around 2.2uF is used to reduce power-supply noise

I

Positive voltage reference input pin,AVDD

-

Analog power supply pin

-

Analog ground pin

I

X'tal input pin

O

X'tal output pin if XTS="H"

I

External master clock input pin if XTS="L"

I

Parallel/Serial select pin
"L" : Serial control mode, "H" : Parallel control mode

I

Audio data interface format pin in parallel mode

I

Chip select pin in serial mode

I

Audio data interface format pin in parallel mode

I

Control data clock pin in serial mode

I

Loop back mode pin in parallel mode
Enables digital loop-back from ADC to 3 DACs.

I

Control data input pin in serial mode

I

Loop back mode pin in parallel mode
Enable all 3 DAC channels to be input from SDTII.

O

Control data output pin in serial mode

Function

1-14

RX-8012PSL

BA15218F (IC303, IC304, IC372, IC385, IC386, IC521, IC522, IC523, IC524, IC525, IC526,
IC527, IC528, IC529) : Op amp.

1OUT1

2-IN1

-

8

7

VCC

OUT2

1

3+IN1

+

-

-IN2

6

2

EE

4

+

+IN2

5V

BA7625 (IC201, IC242) : Video selector

1. Block diagram 2. Truth table

MONITOR OUT

GND

IN5

GND

IN4

CTL E

IN3

CTL D

1

2

3
4

5

6

7
8

logic

logic

16

15

14

13

12

11

10
11

IN1

CTL A

VOUT 1

CC

V

IN2

CTL B

VOUT 2
CTL C

A B E MONITOR OUT

LL

HL

LH
H H L IN4
H H H IN5

C D E VOUT1

LL
HL

LH
H H L IN4
H H H IN5

C D E VOUT2

LL
HL

LH
H H L IN4
H H H IN5

*
*
*

*
*
*

*
*
*

IN1
IN2
IN3

-­IN2
IN3

IN1

-­IN3

BA7626 (IC241) : Video selector

1. Block diagram

MONITOR OUT

GND

IN5

GND

IN4

CTL E

IN3

CTL D

1

2

3
4

5

6

7
8

logic

logic

16

15

14

13

12

11

10
11

IN1

CTL A

VOUT 1

CC

V

IN2

CTL B

VOUT 2
CTL C

2. Truth table

A B E MONITOR OUT

LL
HL
LH
H H L IN4
H H H IN5

C D E VOUT1

LL
HL
LH
H H L IN4
H H H IN5

C D E VOUT2

LL
HL
LH
H H L IN4
H H H IN5

*
*
*

*
*
*

*
*
*

IN1
IN2
IN3

-­IN2
IN3

IN1

-­IN3

1-15

RX-8012PSL

BU2092 (IC402) : Port expander

1.Pin layout

Vss

DATA

CLOCK

LCK

Q0

Q1

Q2

Q3

Q4

1

2

3

CONTROL

CIRCUIT

4

5

6

7

12BIT SHIFT RESISTER

8

12BIT STRAGE RESISTER

OUTPUT BUFFER(OPEN DRAIN)

9

17

16

15

14

13

12

11

10

18

Vdd

OE

Q11

Q10

Q9

Q8

Q7

Q6

Q5

2.Pin function
Pin No.

1
2
3
4

5~16

17
18

Symbol

Vss

DATA

CLOCK

LCK

Q0~Q11

OE

Vdd

I/O

­I
I
I

O

I

-

Connect to GND
Serial Data input
Shift Clock of Data
Latch Clock of Data
Parallel Data Output

Latch Data L H
OUTPUT ON OFF

Output Enable
Power Supply

MAX4018ESD (IC390) : Op amp.

ENA
ENC
ENB

Vcc

INA+

INA-

OUTA

N.C.

1
2
3
4
5
6
7
8

16
15
14
13
12
11
10

OUTC
INC­INC+
V

EE

INB+
INB­OUTB
N.C.

9

Function

1-16

MB90088 (IC203) : Display controller

1.Pin layout

RX-8012PSL

YIN

VIN
CIN
AVcc

IOUT

VOC

Vcc
EXS

XS
HSYNC
VSYNC

EXHSYN
EXVSYN

Vss

2.Block diagram

SIN

SCLK

CS

EXHSYN

EXVSYN

1
2
3
4
5
6
7
8
9
10
11
12
13
14

28

AVss

27

YOUT

26

VOUT

25

COUT

24

CS

23

SIN

22

SCLK

21

TEST

20

BOUT

19

ROUT

18

GOUT

17

VOB

16

XD

15

EXD

Serial Input
Control

H/V Separate

Each Control, Data

VIN
YIN

CIN

HSYNC

VSYNC

XS

EXS

XD

EXD

NTSC/PAL
Signal OSC

Display Memory
Control

VRAM

4FSC CLK
OSC

Dot CLK
OSC

Each Block

Each Block

Analog SW

Video Signal
OSC

Output
Control

CGROM

VOUT
YOUT
COUT

BOUT
ROUT
GOUT
IOUT
VOC
VOB

1-17

RX-8012PSL

3.Functions

pin

Symbol I/O Function

no

YIN

1

VIN

2

CIN

3
4

AVcc

5

IOUT

6

VOC

7

Vcc

8

EXS

9

XS

10

HSYNC

11

VSYNC

12

EXHSYN

13

EXVSYN

14

Vss

EXD

15
16

XD

17

VOB

18

GOUT

19

ROUT

20

BOUT

21

TEST

22

SCLK

23

SIN

24

CS

25

COUT

26

VOUT

27

YOUT

28

AVss

I

Lux signal Input terminal for Superinpause indication

I

Composite video signal input terminal for Superinpause indication
Contrast signal input terminal for Superinpause indication

I

Analog power supply terminal

­Color (Lux) signal output terminal

O

Character output terminal

O

Power supply terminal

­Clock generator outside circuit terminal for color burst

I
O
O

Horizontal signal output terminal
Vertical signal output terminal

O

EXT horizontal signal input terminal

I

EXT vertical signal input terminal

I

GND

­Dot clock generator outside circuit signal terminal for indication

I
O

Character & background signal output terminal

O

Color signal (Green, Red, Blue)

O

I

Test signal input terminal
Shift clock input terminal for serial transmission

I

Serial data input terminal

I

Chip select terminal

I

Contrast signal output terminal

O

Composite video signal output terminal

O

Lux signal output terminal

O

Analog GND terminal

-

NJM2285V-W (IC202) : 2-input 3-channel video switch

+

H

CLAMP TYPE

1-18

IN1A GND1 IN2B V CTL2 IN2A GND3 IN3B

16 15 14 13 12 11 10 9

BIAS TYPE

L

H

1 2 3 4 5 6 7 8

IN1B CTL1 OUT1 GND2 OUT2 OUT3 CTL3 IN3A

L

H

CLAMP TYPE

L

NJM4580DD (IC301) : LPF, Mic and headphone amp.

1.Pin layout

RX-8012PSL

2.Block diagram

+

V

INPUT

+

A OUT

A -IN

A +IN

V

1

2

A

3

-

4

(TOP VIEW)

B

8

7

6

5

+

V

B OUT

B -IN

B +IN

-

V

NJU7241F33 (IC411) : Voltage regulator

PIN FUNCTION

1

5

2

3

4

1. GND

2. V

IN

3. VOUT

4. +NC

5. STB

OUTPUT

1-19

RX-8012PSL

PCM2702E-X (IC410) : USB D/A converter

1.Pin layout

XTI

1

DD

C

V

2

DGNDC

3

DD

V

4

DGND

5

D+

6

D-

7

BUS

V

8

DGND

9

PLYBCK

10

SSPND

11

ZERO

12

TEST3

13

TEST2

14

3.Pin function

XTO

VccP

AGNDP

VccL

AGNDL

V

OUT

Vcc

COM

V

AGND

OUT

V

AGNDR

VccR
TEST0
TEST1

2. Block diagram

PLYBCK

USB I/F

MCLK

USB clock
generator

XTI

XTO

SSPDN

USB packet
data

WRCLK

FIFO

SPACT

audio
data

RDCLK

28
27
26
25
24

L

23
22
21
20

R

19
18
17
16
15

D+

D-

VBUS

DGNDU

VDDC

DGNDC

Crystal OSC

ZERO

8x

Oversampling

Digital Filter

System Clock

Audio clock

generator

DGNDP

VDDP

Multi-level

Delta-Sigma

Modulator

VccL

AGNDL

VccR

AGNDR

DAC

DAC

Power supply

VCC AGND VDD DGND

Low-pass

Filter

Low-pass

Filter

VOUTL

VCOM

VOUTR

Pin No.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

Symbol
XTI

DD

C

V
DGNDC

DD

V
DGND
D+
D-

BUS

V
DGNDU
PLYBCK
SSPND
ZERO
TEST3
TEST2
TEST1
TEST0
VccR
AGNDR

OUT

R

V
AGND

COM

V
Vcc

OUT

L

V
AGNDL
VccL
AGNDP
VccP
XTO

I/O

IN

-

-

-

­I/O
I/O

IN

-

OUT
OUT
OUT

IN
IN
IN
IN

-

-

OUT

-

-

-

OUT

-

-

-

-

OUT

Function
Crystal Oscillator Input.
Digital Power Supply for Clock Generator, +3.3V.
Digital Ground for Clock Generator.
Digital Power Supply, +3.3V.
Digital Ground.
USB Differential Input/Output Plus.
USB Differential Input/Output Minus.
USB Bus Power (This pin NEVER consumes the USB bus power).
Digital Ground for USB Transceiver.
Playback flag, active LOW. (LOW: playback, HIGH: idle).
Suspend flag, active LOW. (LOW: suspend, HIGH: operational).
Zero flag, (LOW: Normal, HIGH: ZERO).
Test pin 3. Connect to digital ground.
Test pin 2. Connect to digital ground.
Test pin 1. Connect to digital ground.
Test pin 0. Connect to digital ground.
Analog Supply for R-channel, +5V.
Analog Ground for R-channel.
Analog Output for R-channel.
Analog Ground.
Common for DAC.
Analog Supply, +5V.
Analog output for L-channel.
Analog Ground for L-channel.
Analog Supply for L-channel, +5V.
Analog Ground for PLL.
Analog Supply for PLL, +5V.
Crystal Oscillator Output.

(1)

(2)

(2)
(2)
(2)
(2)

1-20

Note:
(1) 3.3V tolerant.
(2) Schmitt trigger input with internal pull-down, 5V tolerant.

TC9162AN (IC380) : Analog switch

RX-8012PSL

VSS
L-S1
L-S2

L-COM1

L-S3
L-S4

L-COM2

L-S5
L-S6

L-COM3

L-S7

L-COM4

ST

GND

L-S1

1
2
3
4
5
6
7
8
9
10
11
12
13
14

2

28
27
26
25
24
23
22
21
20
19
18
17
16
15

VDD
R-S1
R-S2
R-COM1
R-S3
R-S4
R-COM2
R-S5
R-S6
R-COM3
R-S7
R-COM4
DATA
CK

VSS

GND VDD

1

14

28

27

R-S1

L-S2

L-COM1

L-S3

L-S4

L-COM2

L-S5

L-S6

L-COM3

L-S7

L-COM4

ST

3

4

5

6

7

8

9

10

11

12

13

LEVEL SHIFTER

LATCH CIRCUIT

LATCH CIRCUIT

LEVEL SHIFTER

26

25

24

23

22

21

20

19

18

17

16

R-S2

R-COM1

R-S3

R-S4

R-COM2

R-S5

R-S6

R-COM3

R-S7

R-COM4

DATA

SHIFT REGISTER

15

CK

1-21

RX-8012PSL

TC9163AF-X (IC371) : Analog switch

VSS
L-S1
L-S2
L-S3

L-COM1

L-S4
L-S5
L-S6

L-COM2

L-S7
L-S8

L-COM3

ST

GND

L-S1

L-S2

1
2
3
4
5
6
7
8
9
10
11
12
13
14

2

3

28
27
26
25
24
23
22
21
20
19
18
17
16
15

VDD
R-S1
R-S2
R-S3
R-COM1
R-S4
R-S5
R-S6
R-COM2
R-S7
R-S8
R-COM3
DATA
CK

VSS

GND VDD

1

14

28

27

26

R-S1

R-S2

L-S3

L-COM1

L-S4

L-S5

L-S6

L-COM2

L-S7

L-S8

L-COM3

ST

4

5

6

7

8

9

10

11

12

13

LEVEL SHIFTER

LATCH CIRCUIT

SHIFT REGISTER

LATCH CIRCUIT

LEVEL SHIFTER

25

24

23

22

21

20

19

18

17

16

15

R-S3

R-COM1

R-S4

R-S5

R-S6

R-COM2

R-S7

R-S8

R-COM3

DATA

CK

1-22