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3-1. Block Diagrams

– Main Section – ··························································· 7
– Display/Power Section – ············································ 8

3-2. Printed Wiring Board – Digital Section – ····················· 9
3-3. Schematic Diagram – Digital Section (1/2) – ············· 10
3-4. Schematic Diagram – Digital Section (2/2) – ············· 11
3-5. Printed Wiring Board – AMP Section – ······················ 12
3-6. Schematic Diagram – AMP Section – ························· 13
3-7. Printed Wiring Board – Input Section – ······················ 14
3-8. Schematic Diagram – Input Section – ························· 15
3-9. Printed Wiring Board – Video Section – ····················· 16
3-10. Schematic Diagram – Video Section – ······················· 17
3-11. Printed Wiring Board – Display Section – ·················· 18
3-12. Schematic Diagram – Display Section – ···················· 19
3-13. Printed Wiring Board – Power Section – ···················· 20
3-14. Schematic Diagram – Power Section – ······················· 21
3-15. IC Block Diagram ······················································· 22
3-16. IC Pin Function Descriptions ······································ 23

4-1. Front Panel Section ····················································· 27
4-2. Chassis Section ···························································· 28

······································· 29

Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)

Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40

°C higher than

ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350

°C.

Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!

• Strong viscosity

Unleaded solder is more viscous (sticky, less prone to flow) than
ordinary solder so use caution not to let solder bridges occur such
as on IC pins, etc.

• Usable with ordinary solder

It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.

• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged

by heat.

3

This section is extracted
from instruction manual.

Display 7 (20)
DVD 4 (17)
IR receptor 2
MASTER VOLUME 9 (17)
MUTING qs (17)
PLII q; (19)
PRESET TUNING +/– 8 (24)
SOUND FIELD qa (18, 21)
TUNER 6 (17, 23, 24)
TV/SAT 5 (17)
VIDEO 3 (17)
?/1 (power) 1 (12, 16, 17, 22)

The items are arranged in alphabetical order.

Refer to the pages indicated in parentheses ( ) for details.

1

2

3

4

5

6

7

9

q;

qs qa

8

4

* All preset contents are reset to the default setting.
* Procedure:

While depressing the  VIDEO  and the  PLII  buttons
simultaneously, press the power  ?/1  button to turn on the main
power.  The message “FACTORY” appears and switch off the set.
Press the power  ?/1  button again, and the present contents are
reset to the default values.

* Either the micro speaker mode or normal speaker mode can be

selected.

* Procedure

While depressing the  MUTING  button, press the power  ?/1
button to turn on the main power. Either the message “MICRO
SP.” or “NORM. SP.” appears. Select the desired mode.

* The preset sound field is cleared when this mode is activated.

Use this mode before returning the product to clients upon
completion of repair.

* Procedure:

While depressing the  SOUND FIELD  button, press the power
 ?/1  button to turn on the main power.  The message
“S. F. CLR” appears and initialization is performed.

* The all preset value is cleared when this mode is activated.
* Procedure :

While depressing the  VIDEO  and the  SOUND FIELD  buttons
simultaneously, press the power  ?/1  button to turn on the main
power. The message “INITIAL” appears and clear all preset value.

* Either the fan auto mode or fan on mode can be selected.
* Procedure:

While depressing the  PLII  button, press the power  ?/1  button.
Either the message “FAN AUTO” or “FAN ON” appears. Select
the desired mode.

* The software version is displayed.
* Procedure:

While depressing the  VIDEO  and the  MUTING  buttons
simultaneously, press the power  ?/1  button to turn on the main
power.  The model name, destination and the software version are
displayed.

* Button check
* Procedure:

While depressing the DVD and the MUTING buttons
simultaneously, press the power  ?/1  button to turn on the main
power.
“REST 09” appears.
Every pressing of any button other than  ?/1  counts down the
buttons.  The buttons which are already counted once are not
counted again.  When all buttons are pressed “REST 00” appears.

* All fluorescent segments are tested.  When this test is activated,

all segments turn on at the same time, then each segment turns on
one after another.

* Procedure:

While depressing the   DVD   and the   PLII   buttons simultaneously,
press the power  ?/1  button to turn on the main power.

1. All segments turn on.

VIDEO ,  DVD ,  TV/SAT  and  TUNER FM/AM  LED turn on.

2. Press the  VIDEO  button, confirm display

VIDEO , and  TUNER FM/AM  LED turn on.

3. Press the  VIDEO  button, confirm display

DVD  and  TV/SAT  LED turn on.

4. Press the  VIDEO  button, all segments turn off.

5. Every pressing of the VIDEO button turns on each segment and

LED one after another in the same order.
(Not only the VIDEO button, but also the other buttons such as
DVD ,  TV/SAT ,  TUNER FM/AM  can be used.)

* Tuner check
* Procedure :

While depressing the  TUNER FM/AM  and the  MUTING
buttons simultaneously, press the power  ?/1  button to turn on
the main power. TUN CHK appears and the tuner checking is
performed.

* DSP tests are performed.
* Procedure :

There are two different methods to enter the test mode.

(1) While depressing the  DVD  and  SOUND FIELD  buttons

simultaneously, press the power  ?/1    button to turn on the
main power.

(2) When the set is turned on, by using the remote controller, press

Cursor button three times, then press the  MAIN MENU  button
one time and thenpress the  MUTING  button one time.

• Select the item by pressing Cursor button ( 

V  or  v ).

• Select the function by pressing Cursor button ( 

B  or  b ).

L

SW

SL

SR

SSB

C

R

 L F E

OPT COAX MULTI CH IN 12

MEMORY

SLEEP

RDS

MONO

STEREO

EQ

D.RANGE

dB

kHz

mft.

MHz

SP SP A SP B

DIGITAL EX

PRO LOGIC II DTS-ES NEO : 6 MPEG-2 AAC

L

SL

SR

R

COAX

1

MEMORY

MONO

EQ

D.RANGE

dB

  Hz
   ft.

SP A SP B

EX

II

-ES NEO : 6 

-2

SW

SSB

C

 L F E

OPT

MULTI CH IN  2

SLEEP

RDS

STEREO

k

m

MHz

SP

DIGITAL PRO 

LOGIC DTS

MPEG

AAC

5

SWAP

DSP Version

DSP communication

Bass Management

Main Speaker cut off Freq.

LFE cut off Freq.

Co-ef. Read Address

Co-ef. Read Data

Co-ef. Write Address

Co-ef. Write Data

SRAM

Total operation time

Longest Power ON time

Output time less than

–50dB volume

Output time less than

–40dB volume

Output time less than

–30dB volume

Output time less than

–20dB volume

Output time less than

–10dB volume

Output time less than

0dB volume

Protector count value

Fuse open count value

EEPROM CONDITION

EEPROM READ

EEPROM Super Reset

DSP HALT MODE

Selection of setting

output channels

Checking communication

between DSP and microcom

Checking communication

between DSP and SRAM

Four large charactors are

hour. Two small charactors

are minutes.

0 to 255

Normal channel output

Left input

t Front Left, Surround Left, Center channel output

Right input

t Front Right, Surround Right, Sub Woofer channel output

Left input

t Center channel output

Right input

t Sub Woofer channel output

Left input

t Surround Left channel output

Right input

t Surround Right channel output

“DSPV XXX” is displayed. Three large charactors are the dsp version that

is being used.

When this item is selected the message will be displayed “ OK ” if the

checking is correct. “ ERROR ” will be displayed in a case of an error.

Not used for service

Not used for service

Not used for service

Not used for service

Not used for service

Not used for service

Not used for service

“ RAMC. OFF ” will be displayed in a case of no checking.

By pressing Cursor button the checking starts.

“ RAMC. PASS ” will be displayed if the checking is good.

“ RAMC. NG ” will be displayed if an error occurs.

TTL-XXXX xx is displayed.

LNG-XXXX xx is displayed.

V50-XXXX xx is displayed.

V40-XXXX xx is displayed.

V30-XXXX xx is displayed.

V20-XXXX xx is displayed.

V10-XXXX xx is displayed.

V00-XXXX xx is displayed.

PROTXXXX xx is displayed.

FUSEXXXX xx is displayed.

E- XXXX is displayed.

S RST

t Super Reset : first time use EEPROM or test pattern

corrupted

FAIL

t EEPROM read / write with microcom has problem

V CHG

t Software version change

D CHG

t Destination / model change

CLEAR

t Back up data initialize

NORM

t Normal AC on

E- XXX-XX is displayed.

First four hex code is EEPROM address (controlled by +/– button).

Last two hex code is EEPROM data.

S.RST- XXX is displayed.

When YES is selected, press Cursor button to clear all EEPROM data

HALT NO or HALT YES is displayed.

NORM

ALL

C SW

SLSR

–

–

–

–

–

–

–

–

–

OFF

ON

–

–

–

–

–

–

–

–

–

–

–

–

–

–