Yamaha DSP-RX-V1 Service Manual

DSP-AX1/RX-V1

AV AMPLIFIER/AV RECEIVER

DSP-AX1/RX-V1

SERVICE MANUAL

This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already
known and understood by the users, and have therefore not been restated.

WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal

IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification

The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and
service departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore,
inevitable and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist,
please contact the distributor's Service Division.

WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have

IMPORTANT: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the

injury, destruction of expensive components, and failure of the product to perform as specified. For these
reasons, we advise all YAMAHA product owners that any service required should be performed by an
authorized YAMAHA Retailer or the appointed service representative.

or recognition of any applicable technical capabilities, or establish a principle-agent relationship of any
form.

accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this
buss).

unit.

■ CONTENTS

TO SERVICE PERSONNEL ........................................... 1

FRONT PANELS ............................................................. 2

REAR PANELS ........................................................... 3~4

SPECIFICATIONS ....................................................... 5~8

INTERNAL VIEW ............................................................ 9

DISASSEMBLY PROCEDURES .............................. 9~10

SELF DIAGNOSIS FUNCTION............................... 11~32

AMP ADJUSTMENTS ................................................... 33

IMPORTANT NOTICE

DSP-AX1/RX-V1

TUNER ADJUSTMENTS ........................................ 34~37

IC DATA .................................................................. 38~53

PRINTED CIRCUIT BOARD ................................... 54~83

BLOCK DIAGRAM .................................................. 84~88

PIN CONNECTION DIAGRAM ..................................... 89

SCHEMATIC DIAGRAM ....................................... 90~101

PARTS LIST ........................................................ 102~135

REMOTE CONTROL TRANSMITTER................ 136~141

100698

DSP-AX1/RX-V1

■ TO SERVICE PERSONNEL

1. Critical Components Information.
Components having special characteristics are marked Z
and must be replaced with parts having specifications equal
to those originally installed.

2. Leakage Current Measurement (For 120V Models Only).
When service has been completed, it is imperative to verify
that all exposed conductive surfaces are properly insulated
from supply circuits.

● Meter impedance should be equivalent to 1500 ohm shunted

by 0.15µF.

● Leakage current must not exceed 0.5mA.

“CAUTION”

“F751 : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 12A, 250V FUSE.”

A V

CAUTION

F751 : REPLACE WITH SAME TYPE 12A, 250V FUSE.

WALL
OUTLET

● Be sure to test for leakage with the AC plug in both

polarities.

EQUIPMENT
UNDER TEST

INSULATING
TABLE

AC LEAKAGE
TESTER OR
EQUIVALENT

WARNING: CHEMICAL
CONTENT NOTICE!

The solder used in the production of this product
contains LEAD. In addition, other electrical/
electronic and/or plastic (where applicable)
components may also contain traces of chemicals
found by the California Health and Welfare
Agency (and possibly other entities) to cause
cancer and/or birth defects or other reproductive
harm.
DO NOT PLACE SOLDER, ELECTRICAL/
ELECTRONIC OR PLASTIC COMPONENTS IN
YOUR MOUTH FOR ANY REASON
WHATSOEVER!
Avoid prolonged, unprotected contact between
solder and your skin! When soldering, do not
inhale solder fumes or expose eyes to solder/flux
vapor!
If you come in contact with solder or components
located inside the enclosure of this product, wash

DSP-AX1/RX-V1

your hands before handling food.

ATTENTION

F751 : UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 12A, 250V.

WARNING

Do not change the IMPEDANCE SELECTOR
switch setting while the power to this unit is
on, otherwise this unit may be damaged.

IMPEDANCE SELECTOR

1

■ FRONT PANELS

▼ DSP-AX1

DSP-AX1/RX-V1

▼ RX-V1

DSP-AX1/RX-V1

2

DSP-AX1/RX-V1

CCIB

*

■ REAR PANELS

▼ DSP-AX1 R, T models

▼ DSP-AX1 B model

▼ DSP-AX1 G model

DSP-AX1/RX-V1

3

▼ RX-V1 U model

DSP-AX1/RX-V1

▼ RX-V1 C model

▼ RX-V1 A model

DSP-AX1/RX-V1

4

DSP-AX1/RX-V1

■ SPECIFICATIONS

■ AUDIO SECTION

Minimum RMS Output Power per Channel

MAIN, 20Hz to 20kHz, 0.015% THD, 8Ω . . . .110W+110W

CENTER, 20Hz to 20kHz, 0.015% THD, 8Ω . . . . . . 110W

REAR, 20Hz to 20kHz, 0.015% THD, 8Ω . . .110W+110W
REAR CENTER,

20Hz to 20kHz, 0.015% THD, 8Ω . . . . . . . . . . . . . . 110W

FRONT, 1kHz, 0.05% THD, 8Ω . . . . . . . . . . . . .35W+35W

Maximum Power per Channel (R, T models only)

MAIN, 1kHz, EIAJ, 10% THD, 8Ω . . . . . . . . .150W+150W

CENTER, 1kHz, EIAJ, 10% THD, 8Ω . . . . . . . . . . . 150W

REAR, 1kHz, EIAJ, 10% THD, 8Ω . . . . . . . . .150W+150W

REAR CENTER, 1kHz, EIAJ, 10% THD, 8Ω . . . . . . 150W

FRONT, 1kHz, EIAJ, 10% THD, 8Ω . . . . . . . . . .45W+45W

Dynamic Power per Channel (U, C, R, T models only)

MAIN, 8/6/4/2Ω . . . . . . . . . . . . . . . . . . . 150/180/240/340W

Dynamic Headroom (U, C, R, T models only)

8Ω . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3dB

DIN Standard Output Power per Channel (B, G models only)

MAIN, 1kHz, 0.7% THD, 4Ω . . . . . . . . . . . . . .180W+180W

CENTER, 1kHz, 0.7% THD, 4Ω . . . . . . . . . . . . . . . . 180W

REAR, 1kHz, 0.7% THD, 4Ω . . . . . . . . . . . . .180W+180W

REAR CENTER, 1kHz, 0.7% THD, 4Ω . . . . .180W+180W

FRONT, 1kHz, 0.7% THD, 4Ω . . . . . . . . . . . . . .60W+60W

IEC Power (B, G models only)

MAIN, 1kHz, 0.015% THD, 8Ω . . . . . . . . . . . . . . . . . 120W

Power Band Width

MAIN, 0.04% THD, 55W/8Ω . . . . . . . . . . . . 10Hz to 50kHz

Damping Factor

MAIN/CENTER, 20Hz to 20kHz, 8Ω . . . . . . . 200 or more

Input Sensitivity/Impedance

PHONO MM . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5mV/47kΩ

CD, etc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150mV/47kΩ

MAIN IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1V/47kΩ

Maximum Input Signal Level

PHONO MM, 1kHz, 0.05% THD, (Effect on) . . . . . 100mV

CD, etc, (Effect on) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3V

Output Level/Impedance

REC OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . 150mV/600Ω

PRE OUT (MAIN, etc) . . . . . . . . . . . . . . . . . . . . . 1V/1.2kΩ

SUB WOOFER (EFFECT OFF, MAIN SP : SMALL)

SPLIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MONO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum Voltage Output (20Hz to 20kHz, 1% THD)

PRE OUT (MAIN L/R) . . . . . . . . . . . . . . . . . . . . . . . . . . .3V

Headphone Jack Rated Output/Impedance

CD, etc, (40mV, 8Ω) . . . . . . . . . . . . . . . . . . . 150mV/100Ω

Frequency Response (10Hz to 100kHz)

CD, etc, MAIN L/R . . . . . . . . . . . . . . . . . . . . . . . +0/-3.0dB

RIAA Equalization Deviation (20Hz to 20kHz)

PHONO MM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0±0.5dB

Tone Control Characteristics

BASS : Boost/cut . . . . . . . . . . . . . . . . . . . ±10dB (50Hz)

DSP-AX1/RX-V1

TREBLE : Boost/cut . . . . . . . . . . . . . . . . . . ±10dB (20kHz)

Center Graphic Equalizer

Bass Extension . . . . . . . . . . . . . . . . . . . . . . . . . . +6dB (60Hz)

Filter Characteristics

SUB WOOFER OUT : L.P.F. . . . . . . fc = 90Hz, 24dB/oct.

2.0V/1.2kΩ

4.0V/1.2kΩ

Turnover Frequency . . . . . . . . . . . . . . . . 350Hz

Turnover Frequency . . . . . . . . . . . . . . . 3.5kHz

Frequency . . . . . . . . . . . . 100/300/1k/3k/10kHz

Boost/cut . . . . . . . . . . . . . . . . . . . . . . . . . . ±6dB

Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.7

Cinema Equalizer

HIgh Frequency . . . . . . . . . . . . . . . .1kHz to 12.7kHz

Boost/cut . . . . . . . . . . . . . . . . . . . -9dB to +6dB

PEQ Frequency . . . . . . . . . . . . . . . .1kHz to 12.7kHz

Boost/cut . . . . . . . . . . . . . . . . . . . -9dB to +6dB

Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.85

Total Harmonic Distortion (20Hz to 20kHz)

PHONO MM to REC OUT (1V) . . . . . . . . . . . . . . . . 0.01%

CD, etc, to PRE OUT MAIN L/R (1V) . . . . . . . . . . 0.005%

MAIN IN to L/C/R SP OUT (55W/8Ω) . . . . . . . . . . 0.005%

Signal-to-Noise Ratio (IHF-A-Network)

PHONO MM, Input Shorted 5mV (Effect off) . . . . . . . 86dB

CD, etc, Input Shorted (Effect off) . . . . . . . . . . . . . . . 96dB

Residual Noise (IHF-A-Network)

MAIN, SP OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150µV

Channel Separation (Vol. –30dB, Effect off)

PHONO MM, Input Shorted, 1kHz/10kHz . . . . 70dB/60dB

CD, etc, Input 5.1kΩ Shorted, 1kHz/10kHz . . . 70dB/60dB

Muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – ∞

■ VIDEO SECTION

Video Signal Type

U, C models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NTSC

A, B.G models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PAL

R, T models . . . . . . . . . . . . . . . . . . . . . . . . . . . . NTSC/PAL

Composite Video Signal Level . . . . . . . . . . . . . . 1Vp-p/75Ω

S-Video Signal Level

Y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Vp-p/75Ω

C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.286Vp-p/75Ω

Component Signal Level

Y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Vp-p/75Ω

Cb/Cr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.7V/75Ω

Video Maximum Input Level . . . . . . . . . . . . . . . . . . . 1.5Vp-p

Video Signal-to-Noise Ratio . . . . . . . . . . . . . . . . . . . . . 50dB

Monitor Output Frequency Response

Composite Video Signal . . . . . . . . . . . . 5Hz~10MHz, –3dB

S-Video Signal . . . . . . . . . . . . . . . . . . . . 5Hz~10MHz, –3dB

Component Signal . . . . . . . . . . . . . . . . . DC~20MHz, –3dB

5

DSP-AX1/RX-V1

■ FM SECTION (RX-V1 only)

Tuning Range

U, C models . . . . . . . . . . . . . . . . . . . . . . .87.5 to 107.9MHz

A models . . . . . . . . . . . . . . . . . . . . . . .87.50 to 108.00MHz

50dB Quieting Sensitivity (IHF, 75 Ω)

U, C models only

Mono (1kHz, 100% Mod.) . . . . . . . . . . . . 1.6µV (15.3dBf)

Stereo (1kHz, 100% Mod.) . . . . . . . . . . . . 23µV (38.5dBf)

Usable Sensitivity (DIN, 75 Ω)

A model only

Mono (S/N 26dB) . . . . . . . . . . . . . . . . . . . . . . . . . . 0.9µV

Stereo (S/N 46dB) . . . . . . . . . . . . . . . . . . . . . . . . . . . 28µV

Alternate Channel Selectivity (± 400Hz)

U, C models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75dB

Selectivity (two signals, 40kHz Dev.) (± 300Hz)

A model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55dB

Signal-to-Noise Ratio

U, C models

Mono/Stereo (IHF) . . . . . . . . . . . . . . . . . . . . . . . 81/75dB

A model

Mono/Stereo (DIN-weighted, 40kHz Dev.) . . . . . 75/69dB

Harmonic Distortion

Mono/Stereo (1kHz) . . . . . . . . . . . . . . . . . . . . . . . 0.1/0.2%

Stereo Separation

1kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48dB

Frequency Response

20Hz to 15kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0±1.0dB

Output Level

U, C models

FM 100% mod. 1kHz . . . . . . . . . . . . . . . . . . . . . . 550mV

A models

FM 40kHz Dev. 1kHz . . . . . . . . . . . . . . . . . . . . . . 550mV

Antenna Input . . . . . . . . . . . . . . . . . . . . . . . 75 Ω unbalanced

■ AM SECTION (RX-V1 only)

■ GENERAL

Power Supply

U, C models . . . . . . . . . . . . . . . . . . . . . . . AC 120V, 60Hz

A model . . . . . . . . . . . . . . . . . . . . . . . . . . . AC 240V, 50Hz

B, G models . . . . . . . . . . . . . . . . . . . . . . . AC 230V, 50Hz

R, T models . . . . . . . . . . . AC 110/120/220/240V, 50/60Hz

Power Consumption

U model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550W

C model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550W/700VA

A, R, T models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550W

Maximum Power Consumption (R, T models only) . . 770W
AC Outlets

U, R, T, G models, Switched x 3 . . . . . 100W max (Total)

C model, Switched x 3 . . . . . 100W max/1.0A max (Total)

A, B models, Switched x 1 . . . . . . . . . . . . . . . . 100W max

Dimensions (W x H x D) . . . . . . . . . . . 471 x 211.5 x 473mm

(18-9/16” x 8-5/16” x 18-5/8”)

Weight . . . . . . . . . . . . . . . . . . . . . . . . . .28.0 kg (61 lbs 11oz)

Finish

RX-V1 . . . . . . . . . . . . . . . . . . . . . . . Gold color/Black color

DSP-AX1 . . . . . . . . . . . . . . . . . . . . Gold color/Black color

Accessories

RX-V1 only . . . . . . . . . . . . . . . . . . . AM loop antenna x 1

Indoor FM antenna x 1

DSP-AX1/RX-V1 . . . . . . . Remote Control Transmitter x 1

Battery (size "AA", "R06") x 3

* Specifications subject to change without notice.

U . . . . . . . . . . USA model

C . . . . . . Canadian model

A . . . . . Australian model

B . . . . . . . . British model

G . . . . . European model

R . . . . . . . General model

T . . . . . . . . . China model

Tuning Range

U, C models . . . . . . . . . . . . . . . . . . . . . . . .530 to 1,710kHz

A model . . . . . . . . . . . . . . . . . . . . . . . . . . .531 to 1,611kHz

Usable Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . 300µV/m

Output Level

AM 30% mod. 1kHz . . . . . . . . . . . . . . . . . . . . . . . . 150mV

Signal-to-Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . 52dB

Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loop antenna

Manufactured under license from Dolby Laboratories.
"Dolby", "AC-3", "Pro Logic", and the double-D symbol V
are trademarks of Dolby Laboratories. © 1992-1997 Dolby
Laboratories. All rights reserved.

Manufactured under license from Digital Theater Systems,
Inc. US Pat. No. 5,451,942 and other world-wide patents
issued and pending. "DTS", "DTS Digital Surround", are
trademarks of Digital Theater Systems, Inc. copyright
1996 Digital Theater Systems, inc. All rights reserved.

● DIMENSIONS

471 (18-9/16")

21.5

(7/8")

429 (16-7/8")

473 (18–5/8")

22.5

(7/8")

190.5 (7-1/2")

211.5 (8–5/16")

21

(13/16")

Units : mm (inch)

DSP-AX1/RX-V1

6

DSP-AX1/RX-V1

● SET MENU TABLE

No. SET MENU PRESET VALUE SETTING RANGES

1. SPEAKER SET
1A CENTER SPEAKER LARGE LARGE/SMALL/NONE
1B MAIN SPEAKER LARGE LARGE/SMALL
1C REAR L/R SPEAKER LARGE LARGE/SMALL/NONE
1D REAR CT SPEAKER LARGE LARGE/SMALL/NONE
1E LFE/BASS OUT BOTH SUBWOOFER/MAIN/BOTH
1F FRONT EFCT SPEAKER YES YES/NONE
1G MAIN LEVEL NORMAL NORMAL/–10dB

2. LOW FREQ. TEST TONE : OFF ON/OFF

OUTPUT : MAIN L/R L/C/R/RS/RC/LS/SW/FRONT
FREQUENCY : 88Hz 35 — 250Hz

3. DOLBY DIGITAL SET
3A LFE LEVEL SPEAKER : 0dB –20dB — 0dB

HEAD PHONE : 0dB –20dB — 0dB

3B DYNAMIC RANGE SPEAKER : MAX MAX/STD/MIN

HEAD PHONE : MAX MAX/STD/MIN

4. DTS SET
4A LFE LEVEL SPEAKER : 0dB –10dB — +10dB

HEAD PHONE : 0dB –10dB — +10dB

5. SPEAKER DELAY TIME CENTER : 0ms 0ms — 5ms

REAR CENTER : 3ms 0ms — 30ms

6. AUDIO DELAY 0ms 0ms — 99ms

7. CENTER GRAPHIC EQ. EACH ch : 0dB 100Hz — 10kHz, –6dB — +6dB

8. REAR CENTER GRAPHIC EQ. EACH ch : 0dB 100Hz — 10kHz, –6dB — +6dB

9. CINEMA EQ. ALL “OFF”
9A L, C, R EQ. HIGH 12.7kHz, –3dB PEG 12.7kHz, –4dB HIGH, PGE : 1kHz — 12.7kHz
9B FRONT EFCT EQ. HIGH 12.7kHz, 0dB PEG 8kHz, –3dB GAIN : –9dB — +6dB
9C REAR L/R EQ. HIGH 12.7kHz, 0dB PEG 8kHz, –3dB
9D REAR CENTER EQ. HIGH 12.7kHz, 0dB PEG 8kHz, –3dB

10. HP TONE CTRL BASS : 0dB –6dB — +3dB

TREBLE : 0dB –6dB — +3dB

11. PARAMETER INITIALIZE OFF PROGRAM 1 — 12

12. 6.1/ES AUTO ON ON/OFF

13. MEMORY GUARD OFF ON/OFF

14. COMPONENT VIDEO INPUT [A] : DVD

[B] : D-TV
[C] : CBL/SAT

15. INPUT MODE D-TV : AUTO AUTO/LAST
CBL/SAT : AUTO AUTO/LAST
VCR1 : AUTO AUTO/LAST

16. INPUT RENAME LD(Currently selected input)

17. DIMMER 0 –4 — 0

18. ZONE2 SET ZONE2 OUT : FIX FIX/VAR

L, C, R/FRONT EFCT//REAR L,R/REAR CT ON/OFF

DVD, LD, D-TV, CBL/SAT, VCR1, VCR2, VCR3, V-AUX
DVD, LD, D-TV, CBL/SAT, VCR1, VCR2, VCR3, V-AUX
DVD, LD, D-TV, CBL/SAT, VCR1, VCR2, VCR3, V-AUX

● SUPERIMPOSING

DSP-AX1/RX-V1

Input LD, etc. Output Superimposing

Terminal Signal Monitor connection

S O O O (On screen)
VO — X
SO X X
VO — O (On screen)
S O O O (On screen)
VX — X
SO X X
VX — O (Blue back)
SX — X
VO — X (On screen)
SX — O (Blue back)
VX — O (Blue back)

7

S : S video signal
V : Composite video signal
O : YES
X: NO
— : NO CARE
Caution: Superimposing function is not usable for component signals.

Sub-program

Name

[ SP MODE ]

Europe Hall A

Europe Hall B

Europe Hall C

U.S.A. Hall D

Europe Hall E

Live Concert

Tokyo

Freiburg

Royaumont

Village Gate

Village Vanguard

The Bottom Line

Roxy Theatre

Warehouse Loft

Arena

Disco

Party

Game/Amusement

Pop/Rock

DJ

Classical/Opera

Pavilion

Mono Movie

Variety/Sports

Spectacle

Sci-Fi

Adventure

General

Normal

Enhanced

(P.)INIT.DLY

ms

30

30

30

35

30

45

40

95

69

21

26

30

15

15

15

26

15

45

21

23

28

23

49

10

13

16

15

15

(P.)ROOM

SIZE

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

(P.)LIVENESS

5

5

5

5

5

5

3

3

3

3

5

5

5

5

7

5

5

5

2

S.DELAY

(2ch) ms

25

30

30

30

30

23

20

20

20

20

20

S.DELAY

(DD/dts) ms

10

5

5

5

5

5

15

15

15

5

5

5

7

8

8

12

12

12

5

5

5

5

8

8

15

15

15

15

5

5

S.INIT.DLY

(DD/dts) ms

31

31

31

20

12

32

2

12

23

19

S.INIT.DLY

(DD+EX/dts+ES) ms

31

31

31

20

12

32

2

12

23

19

S.ROOM SIZE

(2ch)

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

S.ROOM SIZE

(DD/dts)

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

S.ROOM SIZE

(DD+EX/dts+ES)

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

S.LIVENESS

(2ch)

4

S.LIVENESS

(DD/dts)

4

S.LIVENESS

(DD+EX/dts+ES)

4

RC.INIT.DLY

ms

15

15

15

15

15

15

15

15

15

15

RC.ROOM

SIZE

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

RC.LIVENESS

5

REV.TIME

s

2.5

4.0

4.0

1.6

2.0

2.0

2.7

2.5

2.5

2.2

2.5

2.5

1.6

REV.DELAY

ms

122

130

120

100

160

120

120

140

130

120

142

160

100

REV.LEVEL

%

56

55

52

7

6

8

4

4

10

1

4

2

4

EFCT TRIM

db

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Sub-program

Name

[ HP MODE ]

Europe Hall A

Europe Hall B

Europe Hall C

U.S.A. Hall D

Europe Hall E

Live Concert

Tokyo

Freiburg

Royaumont

Village Gate

Village Vanguard

The Bottom Line

Roxy Theatre

Warehouse Loft

Arena

Disco

Party

Game/Amusement

Pop/Rock

DJ

Classical/Opera

Pavilion

Mono Movie

Variety/Sports

Spectacle

Sci-Fi

Adventure

General

Normal

Enhanced

(P.)INIT.DLY

ms

30

32

30

35

30

45

40

95

69

21

26

30

15

15

28

26

15

45

21

23

28

23

45

10

13

21

16

15

(P.)ROOM

SIZE

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

(P.)LIVENESS

5

5

5

5

5

5

3

3

3

3

5

5

5

5

7

5

5

5

2

S.DELAY

(2ch) ms

25

30

30

30

30

23

20

20

20

20

20

S.DELAY

(DD/dts) ms

10

5

5

5

5

5

15

15

15

5

5

5

7

8

8

12

12

12

5

5

5

5

8

8

8

8

8

15

5

5

S.INIT.DLY

(DD/dts) ms

31

30

18

20

12

32

16

32

23

19

S.INIT.DLY

(DD+EX/dts+ES) ms

31

30

18

20

12

32

16

12

23

19

S.ROOM SIZE

(2ch)

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

S.ROOM SIZE

(DD/dts)

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

S.ROOM SIZE

(DD+EX/dts+ES)

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

S.LIVENESS

(2ch)

4

S.LIVENESS

(DD/dts)

3

S.LIVENESS

(DD+EX/dts+ES)

3

RC.INIT.DLY

ms

15

15

15

15

15

15

15

15

15

15

RC.ROOM

SIZE

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

RC.LIVENESS

5

REV.TIME

s

2.5

4.0

4.0

1.6

2.0

2.0

2.7

2.5

2.5

2.2

2.5

2.5

1.6

REV.DELAY

ms

122

117

120

100

160

120

120

140

110

120

142

160

100

REV.LEVEL

%

56

55

52

7

6

8

4

4

10

2

4

2

4

EFCT TRIM

db

DSP-AX1/RX-V1

PARAMETER TABLE

●

DSP-AX1/RX-V1

8

DSP-AX1/RX-V1

■ INTERNAL VIEW

q u

!1 !5 !9

!2 !3 !8!4 !6 !7

te r y i !0

ow

q POWER TRANSFORMER
w SUB TRANS P. C. B. (1)
e MAIN P. C. B. (4)
r VIDEO P. C. B. (4)
t VIDEO P. C. B. (1)
y SUB TRANS P. C. B. (5)
u SUB TRANS P. C. B. (3)
i VIDEO P. C. B. (2)
o VIDEO P. C. B. (3)
!0 DSP P. C. B. (1)
!1 MAIN P. C. B. (2)
!2 SUB TRANS P. C. B. (4)
!3 DSP P. C. B. (2)
!4 VIDEO P. C. B. (5)
!5 SUB TRANS P. C. B. (2)
!6 MAIN P. C. B. (3)
!7 MAIN P. C. B. (1)
!8 VIDEO P. C. B. (9)
!9 FUNCTION P. C. B. (1)

■ DISASSEMBLY PROCEDURES (Remove parts in the order as numbered.)

1. Removal of Top Cover

a. Remove 8 screws ( q ) and then slide the Side Panel

to remove it in Fig. 1.

b. Remove 2 screws ( w ) and 2 screws ( e ) and then

remove the Top Cover in Fig. 1.

2. Removal of Bottom Cover

a. Remove 12 screws ( r ) and then remove the Bottom

Cover in Fig. 1.

3. Removal of Front Panel

a. Remove 2 knobs in Fig. 1.
b. Remove 4 screws ( t ) and then slide the Panel/Side

forward to remove it in Fig. 1.

c. Remove 4 screws (y ) and then remove the Front

Panel in Fig. 1.

DSP-AX1/RX-V1

Side Panel

q

Front Panel

Panel/Side

t

y

q

y

w

e

Top Cover

q

Side Panel

q

Panel/Side

t

Bottom Cover

r

r

r

r

9

Fig. 1

DSP-AX1/RX-V1

4. Removal of DSP P.C.B. (1)

a. Remove 2 screws ( u ) and remove the right Plate

Side in Fig. 2.

b. Remove 15 screws ( i ) and remove the right Upper

Frame in Fig. 2.

Plate Side
(R)

5. Removal of Main P.C.B. (2)

a. Remove 2 screws ( o ) and remove the left Plate

Side in Fig. 3.

a. Remove 6 screws ( !0 ) and then remove the left Side

Frame in Fig. 3.

Note :

1.When the rear panel has been removed, the ground
wire of the input/output pin jack becomes loose.
Connect it to the chassis by using a lead wire.

DSP (1)

i

i

Upper Frame (right)

i

Fig. 2

u

i

i

6. Removal of Main P.C.B. (3)

a. Remove 4 screws ( !1 ) and remove the center Upper

Frame in Fig. 4.

b. Remove 6 screws ( !2 ) and then take up the Sub

Chassis in Fig. 4.

!0

!0

o

Plate Side (L)

Side Frame (L)

!0

MAIN (2)

!1

Upper Frame
(center)

!1

!0

MAIN (3)

DSP-AX1/RX-V1

!1

!2

!2

!2

Fig. 3

!2

!2

Fig. 4

10

DSP-AX1/RX-V1

■ SELF DIAGNOSIS FUNCTION

This product has a built-in self diagnosis function (DIAG) to facilitate inspection, measurement and determination of a faulty
item, if any. There are 14 DIAG menu items each of which has sub-menu items.
Listed in the table below are menu items and sub-menu items.

DIAG menu

No.

DSP THROUGH

1

DECODER THROUGH

2

RAM THROUGH

3

PRO LOGIC

4

BYPASS

5

SPEAKERS SET

6

DISPLAY CHECK

7

MANUAL TEST

8

RS-232C

9

PRESET

10

FAN/AD

11

DSP-AX1/RX-V1

IF STATUS (0 – 18)

12

Sub-menu

1. ANALOG BYPASS

2. DSP 0dB

3. DSP FULL BIT

1. YSS918/908

2. DSP FULL BIT

1. 2ch/MULTI

2. DSP FULL BIT

1. YSS918

2. YSS908

3. EFFECT OFF

1. DECODER

2. DSP

1. MAIN:SMALL 0dB

2. MAIN:LARGE -10

3. CENTER:NONE

4. LFE/BASS:MAIN

5. FRONT MIX:5ch

6. CENTER:SMALL

7. REAR:SMALL

1. EFFECT OFF (initial screen)

2. DISPLAY OFF

3. DISPLAY ALL

4. DISPLAY DIMMER (50%)

5. CHECKED PATTERN

1. ALL

2. MAIN L

3. CENTER

4. MAIN R

5. REAR R

6. REAR C

7. REAR L

8. FRONT L

9. FRONT R

10. LFE

1. TX DATA

2. HARD FLOW

1. INHIBIT (memory initialization inhibited)

2. RESERVED (memory initialized)

1. FAN HISTORY

2. KY0, KY1(PANEL KEY)

3. MTR, THM, PRD, PRV

1. SCPU

2. VER

3. SUM

4. CHS1

5. CHS2

6. CHS3

7. CHS4

8. CHS5

9. BSI1

10. BSI2

Remote control code (key)

7A---90 (PRG 9)
7A---91 (PRG 10)
7A---92 (PRG 11)
7A---93 (PRG 12)
7A---10

(TUNER PRESET +)

7A---11

(TUNER PRESET -)

7A---12

(TUNER A/B/C/D/E)
7A---9C (SET DOWN)
7A---9D (SET UP)
7A---9E (SET INC)
7A---9F (SET DEC)

--------­7A---88 (PRG 1)
7A---89 (PRG 2)
7A---8A (PRG 3)
7A---8B (PRG 4)
7A---8C (PRG 5)
7A---8D (PRG 6)
7A---8E (PRG 7)
7A---8E (PRG 8)

---------

---------

---------

--------­7A---00 (TAPE PLAY)
7A---01 (TAPE RW)
7A---02 (TAPE FW)
7A---03 (TAPE STOP)
7A---04 (TAPE PAUSE)
7A---05 (TAPE MUTE)
7A---06 (TAPE A/B)
7A---07 (TAPE DIR A)
7A---08 (CD PLAY)
7A---09 (CD STOP)

---------

---------

---------

---------

---------

--------­7A---56 (EFFECT)

---------

---------

---------

---------

---------

---------

---------

---------

---------

---------

11

DSP-AX1/RX-V1

No.

DIAG menu

12

IF STATUS

13

DSP RAM CHECK

14

SUM/VER/PORT

Sub-menu

11. BSI3

12. BSI4

13. BSID

14. DIR5

15. Y918

16. Y908

17. DSP6

18. RAM1

19. RAM2
#1, #2 (DSP RAM check)

1. M, S (main/sub checksum)

2. M, S (main/sub version)

3. PORT (setting confirmation of function setting port)

4. REC-OUT (confirmation of REC OUT port)

Remote control code (key)

---------

---------

---------

---------

---------

---------

---------

---------

---------

---------

---------

---------

---------

---------

● Starting DIAG

For DSP-AX1:
Press the “POWER” (ST ANDBY/ON) key of the main unit while pressing the “SET MENU+” key and the “NEXT” key
located in the sealing panel of the main unit, and DIAG will be activated.

For RX-V1:
Press the “POWER” (ST ANDBY/ON) key of the main unit while pressing the “PROGRAM w” key and the “EFFECT”
key located in the sealing panel of the main unit, and DIAG will be activated.

● Starting DIAG in the protection cancel mode

If the power supply, amplifier protection function is activated and hinders the trouble diagnosis, cancel the protec­tion function as described below, and it will be possible to enter the DIAG mode. (The protection function other than
the excess current detect function will be cancelled.)

For DSP-AX1:
Press the “POWER” (STANDBY/ON) key while pressing the “SET MENU+” key and the “NEXT” key. At this time,
keep pressing the “SET MENU+” key and the “NEXT” for 3 seconds or longer.

For RX-V1:
Press the “POWER” (STANDBY/ON) key while pressing the “PROGRAM w” key and the “EFFECT” key. At this
time, keep pressing the “PROGRAM w” key and the “EFFECT” key for 3 seconds or longer.

In this mode, “ V ” in the FL display of the main unit flashes.

CAUTION!

Using this product with the protection function cancelled may cause damage to itself. Use special care for this point
when using this mode.

● Canceling DIAG

Turn off the power by pressing the “POWER” (STANDBY/ON) key of the main unit or the “STANDBY” key of the
remote control unit.

DSP-AX1/RX-V1

CAUTION: When canceling this function, check that DIAG menu No.10 PRESET (memory initialization inhibited/
reserved) has been set. (To keep the user memory, be sure to select “INHIBIT” (initialization inhibited) from the
No.10 PRESET menu before canceling the DIAG function.)

12

DSP-AX1/RX-V1

● Display at the start of DIAG

The diagnostic menu appears on the monitor screen. (It remains on display until it is canceled.)

DIAGNOSTIC MENU

1.DSP THR 8.MAN TST

2.DECODE THR 9.RS232C

3.RAM THR 10.PRESET

4.PRO LOGIC 11.AD DATA

5.DECODE BYP 12.STATUS

6.SP SET 13.DSP RAM

7.E.OFF/DIS 14.SUM/VER

On the FL display of the main unit, an opening message (including the version and the history of
protection function) appears for a few seconds followed by the diagnostic menu display of 1 DSP
THROUGH: ANALOG BYPS.

Opening message

When there is no history
of protection function (*1)

NO PROTECT X/X
M:XXXX / S:XXXX

Checksum of the main
microprocessor

Checksum (4 figures consisting of alphabets and numbers)
The checksum is obtained by adding 4M bits per 1 octo of the entire program code and expressing the result as a
4-figure hexadecimal data. (0xff is added for the area where no code has been entered and for the area other than
ROM code.)

(*1) If the history of the protection function has been recorded, the type of the protection function and
the voltage value recorded last are displayed.

DSP-AX1/RX-V1

Version of the main/sub mi­croprocessor (1 alphabet)

Checksum of the sub
microprocessor

DIAG menu display

1. DSP THROUGH
ANALOG BYPS

13

DSP-AX1/RX-V1

In the case where the protection function works after DIAG has been started and the power is turned off ;

When the protection function (*2) works, the history of the protection function appears on display and the power
turns off. Repair the faulty parts according to the displayed history.

(*2) When an excess current or any other faulty condition is found with the power source, DC, etc., the protection
function forces the power to turn off.

I PROTECTION display

I PROTECT X/X
M:XXXX / S:XXXX

PS PRT :000 X/X
M:XXXX / S:XXXX

(When the power is turned on without an abnormality corrected, the protec­tion function works the moment the power relay is turned on to shut off the
power supply.)

Cause: There is an abnormal current flow to the power amplifier.
Supplementary information: If I PROTECTION function has worked after

SP relay ON, a warning message “CHECK SP WIRES” appears the next
time the power is turned on. This indicates that some trouble exists after
the SP terminal, such as a short-circuit of the speaker cable.

PS PRT display

(When the power is turned on without an abnormality corrected, the
protection function works about 1 second later to shut off the power supply.
Display may not be provided, if there is an abnormality with the power
supply for the display.)

Cause: There is an abnormality in the power supply section (voltage).
Supplementary information: As the power from following sources is

detected, it is possible to determine where an abnormality exists.

Transformer secondary winding

VI X 2(CB704), YE x 2(CB482)
U, C only : GY x 2(CB481)

Stabilizing power source

±12, ±5V, +5D1, +5D2, +3.3, VP

DC PRT display

DC PRT :000 X/X
M:XXXX / S:XXXX

TMP PRT:000 X/X
M:XXXX / S:XXXX

Besides the above possible causes, the cause may exist in the disconnected connector or around CPU.
PS PRT, DC PRT and TMP PRT displays include the abnormal A/D value in % (voltage value obtained by consid­ering 5V as 100%). Concerning this value, refer to DIAG menu No.11 FAN/AD described on page 28.

● History of protection function

When the protection function has worked, its history is stored in memory with a backup. Even when no abnormality is noted while
the unit is being serviced, an abnormality which has occurred previously can be defined as long as the backup data has been
stored.
The protection history is cleared when DIAG is canceled by selecting “RESERVED” (memory initialization) from the setting items
of the DIAG menu No.10 PRESET or when the backup data is erased.

(When the power is turned on without an abnormality corrected, the protec­tion function works about 3 seconds later to shut off the power supply.)
Cause: A DC output from the power amplifier is detected in the bad
channel.

TMP PRT display

(When the power is turned on without an abnormality corrected, the protec­tion function works about 3 seconds later to shut off the power supply.)
Cause: The temperature of the heat sinks in the power amplifier is
detected. When the temperature rises and an abnormality is detected, the
power turns off.

DSP-AX1/RX-V1

14

DSP-AX1/RX-V1

● Operation procedure of DIAG menu and SUB-MENU

There are No.1 to No.14 MENU items and some SUB-MENU items as well.

DIAG menu selection

DSP-AX1 Main unit: PROGRAM w(forward)/q(reverse) key
RX-V1 Main unit: PRESET TUNING + (forward)/-(reverse) key

SUB-MENU selection

DSP-AX1 Main unit: SET MENU + (forward)/-(reverse) key
RX-V1 Main unit: PROGRAM w(forward)/q(reverse) key
Remote control unit: Only the remote control key in the Menu List can directly call a sub menu.

● Functions during DIAG being set

In addition to the DIAG menu, functions as listed below are available.

• Input selection (including ZONE2), 6CH input

• REC OUT switching

• ZONE2 input, volume

• Front/Center/Rear/Sub-woofer level adjustment

• Muting

• Speaker A/B

• Power on/off operation

• Master volume

It is possible to set to the following volume values using the remote control unit
only during DIAG being set.

Volume value (dB)

• Functions related to the tuner and the set menu are not available.

• It is possible to confirm Menu No.12 IF STA TUS while keeping the signal process (operation status)

of each DIAG menu by using the INPUT MODE key of the main unit.

● Initial settings used to start DIAG function

Following initial settings are used when starting the DIAG function.
When the DIAG function is canceled, the settings before starting DIAG will be restored.

• Input, ZONE2 input: LD (6CH INPUT OFF)

• Master volume: -40dB

• ZONE2 volume: -6dB

• Front/Center/Rear/Sub-woofer level: 0dB

• Audio mute: OFF

• Speaker A/B: ON

DSP-AX1/RX-V1

0

-21

-35

MUTE

Remove control code (key)

7A---E0 (PAGE A)
7A---E1 (PAGE B)
7A---E2 (PAGE C)
7A---E3 (PAGE D)

15

DSP-AX1/RX-V1

1. DSP THROUGH

FULL BIT

Details of DIAG menu

In each menu, “SPEAKERS” is always set to “LARGE”, D-RANGE to “MAX”, LFE LEVEL to 0dB (-10dB when
DOLBY DIGITAL is used) and CENTER DELAY to 0ms unless otherwise specified.

1. DSP THROUGH

There are 3 sub menu items (ANALOG BYPS, DSP 0dB, FULL BIT).

1. DSP THROUGH

ANALOG BYPS

IC3

ANALOG

A/D

AK5383

1. DSP THROUGH

DSP 0dB

ANALOG BYPS [Remote control code: 7A—90(PRG 9)]

• The input mode is fixed to use the analog (A/D) system.

• The L/R signal is output through the analog bypass without using the DSP section.

• C/RC, RL/RR, FL/FR, SWL/SWR signals are output using L/R through via DSP.

L

R

IC4

IC6

AC3D2av

YSS918

PCM THR

L/R

IC7 IC8

DSP6#1 YSS910

RLef : RL EFFECT
RRef : RR EFFECT
ZERO : Digital 0

C/LFE

RLef/RRef
FL/FR
RC/ZERO

DSP6#2 YSS910

RC

LFE

C/RC

FL/FR

RL/RR

SWL/SWR

FILTER
DF1704

FILTER
DF1704

FILTER
DF1704

FILTER
DF1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

C

RC

FL

FR

RL

RR

SWL

SWR

AC3D2av outputs signals using 2ch though. (L/F)

• DSP6#1 outputs the L/R input signals to C/LFE (SD61 1), RLef/RRef (SD613), FL/FR (SD614),
RC (SD615, L only).

• DSP6#2 outputs the output signals from DSP6#1 to C/RC (SD621), RL/RR (SD623), FL/FR
(SD622), SWL/SWR (SD624).

Note: (SDxxx) represents a terminal name of DSP6#1 and DSP6#2.

Reference

CD ANALOG IN : – 20dBV, Both ch
VOLUME : MAX
PRE OUT

MAIN L (1kHz) : – 3.7dBV
MAIN R (1kHz) : – 3.7dBV
CENTER (1kHz) : – 3.2dBV
REAR CENTER (1kHz) : – 3.4dBV
FRONT L (1kHz) : – 3.5dBV
FRONT R (1kHz) : – 3.4dBV
REAR L (1kHz) : – 3.4dBV
REAR R (1kHz) : – 3.3dBV
SW L (50Hz) : – 3.3dBV
SW R (50Hz) : – 3.3dBV
SW MONO (50Hz) : + 2.7dBV

DSP-AX1/RX-V1

16

DSP-AX1/RX-V1

DSP 0dB [Remote control code: 7A—91 (PRG 10)]
The input signal is automatically identified and switched in the priority order of dts > DOLBY DIGITAL > PCM
AUDIO > Analog (A/D) according to the signal detection.
The L/R, C/LFE, FL/FR, RL/RR, RC signals are output through DSP.

(In the case of 2-ch source)

• AC3D2av outputs signals using 2ch though. (L/R)

• DSP6#1 outputs the L/R input signals to L/R (SD610), C/LFE (SD611), RLef/RRef (SD613), FL/FR (SD614), RC

(SD615, L only).

• DSP6#2 outputs the output signals of DSP6#1 to L/R (SD620), C/RC (SD621), RL/RR (SD623), FL/FR (SD622),
SWL/SWR (SD624).

Reference

(In the case of multi-ch source)

• AC3D2av outputs signals using DOLBY DIGITAL/dts decode operation.

• DSP6#1 outputs the L/R input signals to L/R (SD610), RC (SD615, L only), C/LFE to C/LFE (SD611),

LSt/RSt to RLdr/RRdr (SD612), FL/FR (SD614) respectively.

• DSP6#2 outputs the output signals of DSP6#1 to L/R (SD620), C/RC (SD621), RL/RR (SD623), FL/
FR (SD622), SWL/SWR (SD624).

Reference

DSP-AX1/RX-V1

CD ANALOG IN : – 20dBV, Both ch
VOLUME : MAX
PRE OUT

MAIN L (1kHz) : – 3.5dBV
MAIN R (1kHz) : – 3.5dBV
CENTER (1kHz) : – 3.2dBV
REAR CENTER (1kHz) : – 3.4dBV
FRONT L (1kHz) : – 3.5dBV
FRONT R (1kHz) : – 3.4dBV

IC6

L/R

AC3D2av

YSS918

PCM THR

IC4

DIGITAL

ANALOG

IC2

DIR5

YSD917

IC3

A/D

AK5383

CD DIGITAL IN : 1kHz, – 20dBV
VOLUME : MAX
PRE OUT

MAIN L : + 4.2dBV
MAIN R : + 4.2dBV
CENTER : + 4.5dBV
REAR CENTER : + 4.2dBV

IC6

L/R

AC3D2av

C/LFE

YSS918

DD/dts

LSt/RSt

DECODE

IC4

DIGITAL

ANALOG

IC2

DIR5

YSD917

IC3
A/D

AK5383

REAR L (1kHz) : – 3.4dBV
REAR R (1kHz) : – 3.4dBV
SW L (50Hz) : – 3.4dBV
SW R (50Hz) : – 3.4dBV
SW MONO (50Hz) : + 2.7dBV

IC7 IC8

DSP6#1 YSS910

L/R
C/LFE

RLef/RRef
FL/FR
RC/ZERO

DSP6#2 YSS910

LFE

RLdr : RL DIRECT
RRdr : RR DIRECT

FRONT L : + 4.2dBV
FRONT R : + 4.3dBV
REAR L : + 4.3dBV
REAR R : + 4.3dBV

IC7 IC8

DSP6#1 YSS910

L/R
C/LFE
RLdr/RRdr

FL/FR
RC/ZERO

DSP6#2 YSS910

LFE

FILTER
DF1704

FILTER
DF1704

FILTER
DF1704

FILTER
DF1704

FILTER
DF1704

FILTER
DF1704

FILTER
DF1704

FILTER
DF1704

FILTER
DF1704

FILTER
DF1704

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

R

C

RC

FL

FR

RL

RR

SWL

SWR

L

R

C

RC

FL

FR

RL

RR

SWL

SWR

L/R

IC57

C/RC

RC

FL/FR

RL/RR

SWL/SWR

L/R

IC57

C/RC

RC

FL/FR

RL/RR

SWL/SWR

D/A

L

FULL BIT [Remote control code: 7A—92 (PRG11)]

The head margin is unused and the digital data is output in full bit.
The same applies as “DSP 0dB” except that the digital data is output in full bit at D/A.

Reference

CD ANALOG IN : – 30dBV, Both ch
VOLUME : MAX
PRE OUT

MAIN L (1kHz) : – 7.5dBV
MAIN R (1kHz) : – 7.5dBV
CENTER (1kHz) : – 7.2dBV
REAR CENTER (1kHz) : – 7.5dBV
FRONT L (1kHz) : – 7.5dBV
FRONT R (1kHz) : – 7.5dBV

REAR L (1kHz) : – 1.4dBV
REAR R (1kHz) : – 1.4dBV
SW L (50Hz) : + 7.5dBV
SW R (50Hz) : + 7.5dBV
SW MONO (50Hz) : + 13.5dBV

17

2. DECODER THR.

The input signal is automatically identified and switched in the priority order of dts > DOLBY DIGITAL
> PCM AUDIO > Analog (A/D). There are two sub-menu items (YSS918/908, FULL BIT). This menu is
used to check the signal passage of the decoder LSI (YSS918, YSS908).

DSP-AX1/RX-V1

2. DECODER THR.

YSS918/908

2. DECODER THR.

 FULL BIT

YSS918/908 [Remote control code: 7A—93 (PRG12)]
(In the case of 2-ch source)

• AC3D2av outputs L/R input signals from L/R (SDA200, Lt/Rt (SDA21) and C/LFE (SDA22).

• AC3D2av outputs the Lt/Rt output signals of AC3D2av from LS/RS (SDA10).

• DSP6#1 outputs the L/R input signals to L/R (SD610) and RC (SD615, L only), C/LFE (SD611) input

signals to C/LFE (SD611), Lt/Rt input signals to FL/FR (SD614) and LS/RS input signals to RLdr/
RRdr (SD612) respectively.

• DSP6#2 outputs the output signals of DSP6#1 to L/R (SD620), C/RC (SD621), RL/RR (SD623), FL/
FR (SD622) and SWL/SWR (SD624).

Note: (SDAxx) represents the terminal name of AC3Dav and AC3D2av.

(SDxxx) represents the terminal name of DSP6#1 and DSP6#2.

Reference

CD ANALOG IN : – 20dBV, Both ch
VOLUME : MAX
PRE OUT

MAIN L (1kHz) : – 3.5dBV
MAIN R (1kHz) : – 3.4dBV
CENTER (1kHz) : – 3.2dBV
REAR CENTER (1kHz) : – 3.4dBV
FRONT L (1kHz) : – 3.5dBV
FRONT R (1kHz) : – 3.4dBV

IC6

L/R

AC3D2av

C/LFE

YSS918

Lt/Rt

PCM THR

Lt/Rt

IC4

AC3Dav
YSS908

DD/dts

DECODE

IC5

LS/RS

DIGITAL

ANALOG

IC2

DIR5

YSD917

IC3
A/D

AK5383

REAR L (1kHz) : – 3.4dBV
REAR R (1kHz) : – 3.3dBV
SW L (50Hz) : – 3.3dBV
SW R (50Hz) : – 3.3dBV
SW MONO (50Hz) : + 2.7dBV

IC7 IC8

DSP6#1 YSS910

L/R
C/LFE
RLdr/RRdr

FL/FR
RC/ZERO

DSP6#2 YSS910

LFE

FILTER
DF1704

FILTER
DF1704

FILTER
DF1704

FILTER
DF1704

FILTER
DF1704

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

L/R

IC57

C/RC

RC

FL/FR

RL/RR

SWL/SWR

D/A

(In the case of multi-ch source)

• AC3D2av outputs dts or DOLBY DIGITAL encoded input signals from Lt/Rt (SDA21) without decod­ing.

• AC3Dav processes Lt/Rt output signals of AC3D2av by dts or DOLBY DIGITAL decoding and out­puts them to LS/RS (SDA10) and RC (SDA12, L only) through 3/0 down-mixing.

• DSP6#1 outputs the LS/RS input signals to RLdr/RRdr (SD612) and the RC (L only) input signals to
RC (SD615, L only).

• DSP6#2 outputs the output signals of DSP6#1 to RC (SD621, R only) and RL/RR (SD623).

L

R

C

RC

FL

FR

RL

RR

SWL

SWR

DSP-AX1/RX-V1

Reference

CD DIGITAL IN : 1kHz, – 20dBV
VOLUME : MAX
PRE OUT

MAIN L : + 4.5dBV
MAIN R : + 4.6dBV
CENTER : + 4.9dBV
REAR CENTER : + 4.6dBV

IC6

AC3D2av

YSS918

PCM THR

IC4

AC3Dav
YSS908

DD/dts

DECODE

IC5

DIGITAL

ANALOG

IC2

DIR5

YSD917

IC3
A/D

AK5383

FRONT L : + 4.6dBV
FRONT R : + 4.6dBV
REAR L : + 4.7dBV
REAR R : + 4.7dBV

DSP6#1 YSS910

Lt/Rt

Lt/Rt

LS/RS
RC/ZERO

IC7 IC8

DSP6#2 YSS910

RLdr/RRdr

RC/ZERO

RC

FILTER

DF1704

RC

RL/RR

FILTER

DF1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

RC

RL

RR

18

DSP-AX1/RX-V1

FULL BIT [Remote control code: 7A—10 (TUNER PRESET +)]
The head margin is unused and the digital data is output in full bit.
The same applies as YSS918/908 except that the digital data is output in full bit at D/A.

Reference

CD ANALOG IN : – 30dBV, Both ch
VOLUME : MAX
PRE OUT

MAIN L (1kHz) : – 7.5dBV
MAIN R (1kHz) : – 7.5dBV
CENTER (1kHz) : – 7.2dBV
REAR CENTER (1kHz) : – 7.5dBV
FRONT L (1kHz) : – 7.5dBV
FRONT R (1kHz) : – 7.4dBV

REAR L (1kHz) : – 1.4dBV
REAR R (1kHz) : – 1.3dBV
SW L (50Hz) : + 7.6dBV
SW R (50Hz) : + 7.5dBV
SW MONO (50Hz) : + 13.7dBV

3. RAM THROUGH

The input data is automatically identified and switched in the priority order of dts > DOLBY DIGITAL >
PCM AUDIO > Analog (A/D) according to the signal detection.
The main L/R uses the analog through method when analog signals are input and the DSP through
method when digital signals are input.
There are two sub-menu items (2ch/MULTI, FULL BIT).

3. RAM THROUGH

2ch/MULTI

2ch/MULTI [Remote control code: 7A—11 (TUNER PRESET -)]
(In the case of 2-ch source)

• AC3D2av outputs signals using 2ch though. (L/R)

• DSP6#1 outputs the L/R input signals to L/R (SD610), C/LFE (SD61 1) and RC (SD615, L only). Also,

it outputs L/2 + R/2 to RLef/RRef (SD613) and FL/FR (SD614) through the external RAM.

• DSP6#2 outputs the output signals of DSP6#1 to L/R (SD620), RL/RR (SD623), FL/FR (SD622),
SWL/SWR (SD624). Also, it outputs C/RC to C/RC (SD621) through the external RAM.

3. RAM THROUGH

FULL BIT

Reference

DIGITAL

ANALOG

DSP-AX1/RX-V1

CD ANALOG IN : – 20dBV, Both ch
VOLUME : MAX
PRE OUT

MAIN L (1kHz) : – 3.5dBV
MAIN R (1kHz) : – 3.4dBV
CENTER (1kHz) : – 3.2dBV
REAR CENTER (1kHz) : – 3.4dBV
FRONT L (1kHz) : – 3.4dBV
FRONT R (1kHz) : – 3.4dBV

IC4

IC6

AC3D2av

YSS918

PCM THR

L/R

IC2

DIR5

YSD917

IC3
A/D

AK5383

REAR L (1kHz) : – 3.4dBV
REAR R (1kHz) : – 3.3dBV
SW L (50Hz) : – 3.3dBV
SW R (50Hz) : – 3.3dBV
SW MONO (50Hz) : + 2.7dBV

IC7 IC8

DSP6#1 YSS910

4M DRAM

IC33
IC34

L/R
C/LFE

RLef/RRef
FL/FR

L/2

+

R/2

RC/ZERO

DSP6#2 YSS910

LFE

IC35

C/RC

4M DRAM

L/R

IC57

C/RC

FL/FR

RL/RR

SWL/SWR

FILTER

DF1704

FILTER

DF1704

FILTER

DF1704

FILTER

DF1704

FILTER

DF1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

L

R

C

RC

FL

FR

RL

RR

SWL

SWR

19

(In the case of multi-ch source)

• AC3D2av outputs signals using DOLBY DIGITAL/dts decode operation.

• DSP6#1 outputs the L/R signals to L/R (SD610), RC (SD615, L only), C/LFE to C/LFE (SD611), LSt/

RSt to RLdr/RRdr (SD612). Also, it outputs L/2 + R/2 to FL/FR (SD614) through the external RAM.

• DSP6#2 outputs the output signals of DSP6#1 to L/R (SD620), FL/FR (SD622), SWL/SWR (SD624).
Also, it outputs C/RC and RL/RR to C/RC (SD621) and RL/RR (SD623) through the external RAM.

DSP-AX1/RX-V1

Reference

CD DIGITAL IN : 1kHz, – 20dBV
VOLUME : MAX
PRE OUT

MAIN L : + 4.2dBV
MAIN R : + 4.2dBV
CENTER : + 4.5dBV

REAR L : + 4.3dBV
REAR R : + 4.3dBV

REAR CENTER : + 4.2dBV

DIGITAL

ANALOG

FRONT L : + 4.2dBV
FRONT R : + 4.3dBV

IC4

IC6

AC3D2av

YSS918

DD/dts

DECODE

IC2

DIR5

YSD917

IC3
A/D

AK5383

LSt : LS total
RSt : RS total

L/R
C/LFE
LSt/RSt

IC7 IC8

DSP6#1 YSS910

L/R
C/LFE LFE
RLdr/RRdr

FL/FR
RC/ZERO

IC33
IC34

L/2+R/2

4M DRAM

DSP6#2 YSS910

C/RC

RL/RR

IC35

4M DRAM

L/R

IC57

C/RC

FL/FR

RL/RR

SWL/SWR

FULL BIT [Remote control code: 7A—92 (TUNER A/B/C/D/E)]
The head margin is unused and the digital data is output in full bit.
The same applies as “2ch/MULTI” 0dB” except that the digital data is output in full bit at D/A.

FILTER
DF1704

FILTER
DF1704

FILTER
DF1704

FILTER
DF1704

FILTER

DF1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

L

R

C

RC

FL

FR

RL

RR

SWL

SWR

Reference

CD ANALOG IN : – 30dBV, Both ch
VOLUME : MAX
PRE OUT

MAIN L (1kHz) : – 7.5dBV
MAIN R (1kHz) : – 7.5dBV
CENTER (1kHz) : – 7.2dBV
REAR CENTER (1kHz) : – 7.4dBV
FRONT L (1kHz) : – 7.5dBV
FRONT R (1kHz) : – 7.4dBV

REAR L (1kHz) : – 1.4dBV
REAR R (1kHz) : – 1.3dBV
SW L (50Hz) : + 7.6dBV
SW R (50Hz) : + 7.5dBV
SW MONO (50Hz) : + 13.6dBV

DSP-AX1/RX-V1

20

DSP-AX1/RX-V1

4. PRO LOGIC

The input data is automatically identified in the priority order of PCM > Analog. DTS is inhibited.
There are three sub-menu items.
Either Pro-logic (auto input balance turned off ) or EFFECT OFF (analog through) is selected.

4. PRO LOGIC

YSS918

4. PRO LOGIC

YSS908

4. PRO LOGIC

EFFECT OFF

YSS918 [Remote control code: 7A—9C (SET DOWN)]
When the analog, PCM audio or DOLBY DIGITAL 2/0 mode is used, L, R, C, S signals are pro-logic
decoded in YSS918 and output.
When the DOLBY DIGITAL mode other than 2/0 is used, the pro logic function does not work and they
are muted.

(2-ch source) ... Muted in the case of multi-ch source

• AC3D2av outputs signals using PRO LOGIC decoding operation with the auto input balance of f (with

-3dB gain).

• DSP6#1 outputs the PRO LOGIC output signals to L/R (SD610), C(SD611, L only). Also, it passes
the S signal through the external RAM and -3dB processing and outputs it to RLef/RRef (SD613).

• DSP6#2 outputs the output signals of DSP6#1 to L/R (SD620), RL/RR (SD623). Also, it outputs the
C signal to C (SD621, L only) through the external RAM.

L/R

FILTER

DF1704

IC57

RL/RR

C

FILTER

DF1704

FILTER

DF1704

DIGITAL

ANALOG

IC2

DIR5

YSD917

IC3
A/D

AK5383

IC4

IC6

AC3D2av

YSS918

PRO LOGIC

L/R
C/S

IC7 IC8

DSP6#1 YSS910

L/R
CC

RLef/RRef

SC

4M DRAM

IC33
IC34

DSP6#2 YSS910

IC35

4M DRAM

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

L

R

C

RL

RR

Reference

DSP-AX1/RX-V1

21

CD ANALOG IN : – 20dBV, Both ch
VOLUME : MAX
PRE OUT

MAIN L (1kHz) : – 43.0dBV
MAIN R (1kHz) : – 39.0dBV
CENTER (1kHz) : – 0.2dBV
REAR CENTER (1kHz) : – 47.5dBV
FRONT L (1kHz) : – ∞ dBV
FRONT R (1kHz) : – ∞ dBV
REAR L (1kHz) : – ∞ dBV
REAR R (1kHz) : – ∞ dBV
SW L (50Hz) : – ∞ dBV
SW R (50Hz) : – ∞ dBV
SW MONO (50Hz) : – 44.8dBV

CD ANALOG IN : – 20dBV, L ch only
VOLUME : MAX
PRE OUT

MAIN L (1kHz) : – 3.5dBV
MAIN R (1kHz) : – ∞ dBV
CENTER (1kHz) : – 42.4dBV
REAR CENTER (1kHz) : – ∞ dBV
FRONT L (1kHz) : – ∞ dBV
FRONT R (1kHz) : – ∞ dBV
REAR L (1kHz) : – 47.5dBV
REAR R (1kHz) : – 47.5dBV
SW L (50Hz) : – ∞ dBV
SW R (50Hz) : – ∞ dBV
SW MONO (50Hz) : – 44.8dBV

YSS908 [Remote control code: 7A—9D (SET UP)]
When the analog, PCM audio or DOLBY DIGITAL 2/0 mode is used, LS, RS, RC signals are pro-logic
decoded in YSS908 and output.
When the DOLBY DIGIT AL mode other than 2/0 is used, the pro logic function does not work and they
are muted.

(2-ch source) ... Muted in the case of multi-ch source

• AC3D2av outputs 2-ch input signals from LSt/RSt (SDA21).

• AC3D2av outputs signals using DOLBY 3 Stereo decoding operation with the auto input balance off

(with -3dB gain).

• DSP6#1 outputs LS/RS to RLdr/RRdr (SD612) and RC to RC (SD615, L only) respectively.

• DSP6#2 outputs the output signals of DSP6#1 to RL/RR (SD623) and RC (SD621, R only) through

the external RAM.

IC7 IC8

DIGITAL

ANALOG

IC2

DIR5

YSD917

IC3
A/D

AK5383

IC4

IC6

AC3D2av

YSS918

PCM THR

LSt/RSt

AC3Dav
YSS908

PRO LOGIC

IC5

DSP6#1 YSS910

LSt/RSt

LS/RS
RC/ZERO

DSP6#2 YSS910

RLdr/RRdr RL/RR

RC/ZERO RC

IC35

4M DRAM

RC

RL/RR

RL/RR

RC

FILTER
DF1704

FILTER
DF1704

DSP-AX1/RX-V1

D/A

D/A

D/A

RC

RL

RR

PCM1704

PCM1704

PCM1704

Reference

CD ANALOG IN : – 20dBV, Both ch
VOLUME : MAX
PRE OUT

MAIN L (1kHz) : – ∞ dBV
MAIN R (1kHz) : – ∞ dBV
CENTER (1kHz/50Hz) : – 0.5dBV/ – 2.0dBV
REAR CENTER (1kHz) : – ∞ dBV
FRONT L (1kHz) : – ∞ dBV
FRONT R (1kHz) : – ∞ dBV
REAR L (1kHz/50Hz) : – 43.1dBV/ – 12.2dBV
REAR R (1kHz/50Hz) : – 38.7dBV/ – 12.1dBV
SW L (50Hz) : – ∞ dBV
SW R (50Hz) : – ∞ dBV
SW MONO (50Hz) : – 45.5dBV

EFFECT OFF [Remote control code: 7A—9E (SET INC)]

• The input mode is fixed to Analog.

• The L/R signal is output through ANALOG MAIN BYP ASS.

IC11

CD ANALOG IN : – 20dBV, L ch only
VOLUME : MAX
PRE OUT

MAIN L (1kHz) : – ∞ dBV
MAIN R (1kHz) : – ∞ dBV
CENTER (1kHz) : – ∞ dBV
REAR CENTER (1kHz/50Hz) : – 42.6dBV/ – 13.6dBV
FRONT L (1kHz) : – ∞ dBV
FRONT R (1kHz) : – ∞ dBV
REAR L (1kHz/50Hz) : – 3.4dBV/ – 5.3dBV
REAR R (1kHz/50Hz) : – ∞ dBV/ – 39.2dBV
SW L (50Hz) : – ∞ dBV
SW R (50Hz) : – ∞ dBV
SW MONO (50Hz) : – 45.5dBV

DSP BLOCK

L

R

DSP-AX1/RX-V1

ANALOG

22

DSP-AX1/RX-V1

5. BYPASS

Only PCM and analog modes are used for input signals. The bypassing operation is used according to
the menu setting. There are two sub-menu items (DECODER, DSP). This menu is useful when locat­ing the faulty part by bypassing the decoder LSI and DSP6.

5. BYPASS

DECODER

5. BYPASS

DSP

DECODER [Remote control code: 7A—9F (SET DEC)]
(2-ch source) ... Muted in the case of multi-ch source

• AC3D2av, AC3Dav and DSP6#1 are muted.

• DIR5 or A/D output (SDAT) signals are input directly to DSP6#2 and output to L/R (SD620), C/RC

(SD621), RL/RR (SD623), FL/FR (SD622) and SWL/SWR (SD624).

Reference

CD ANALOG IN : – 20dBV, Both ch
VOLUME : MAX
PRE OUT

MAIN L (1kHz) : – 7.5dBV
MAIN R (1kHz) : – 7.5dBV
CENTER (1kHz) : – 7.2dBV
REAR CENTER (1kHz) : – 7.4dBV
FRONT L (1kHz) : – 7.5dBV
FRONT R (1kHz) : – 7.4dBV

IC2

DIGITAL

ANALOG

DIR5

YSD917

IC3

A/D

AK5383

IC4

REAR L (1kHz) : – 1.4dBV
REAR R (1kHz) : – 1.3dBV
SW L (1kHz/50Hz) : + 7.7dBV/ + 7.5dBV
SW R (1kHz/50Hz) : + 7.7dBV/ + 7.5dBV
SW MONO (1kHz/50Hz) : + 13.8dBV/ + 13.5dBV

L/R (DECODER BYPASS)

IC8

DSP6#2 YSS910

L/R

IC57

C/RC

FL/FR

RL/RR

SWL/SWR

FILTER

DF1704

FILTER

DF1704

FILTER

DF1704

FILTER

DF1704

FILTER

DF1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

D/A

PCM1704

L

R

C

RC

FL

FR

RL

RR

SWL

SWR

DSP [Remote control code: ––––]
(2-ch source) ... Muted in the case of multi-ch source

• AC3D2av, AC3Dav, DSP6#1 and DSP6#2 are muted.

• The DIR5 or A/D output (SDAT) signal is input directly to DAC and L/R is reproduced.

Reference

DSP-AX1/RX-V1

23

CD ANALOG IN : – 20dBV, Both ch
VOLUME : MAX
PRE OUT

MAIN L (1kHz) : – 3.4dBV
MAIN R (1kHz) : – 3.4dBV
CENTER (1kHz) : – ∞ dBV
REAR CENTER (1kHz) : – ∞ dBV
FRONT L (1kHz) : – ∞ dBV
FRONT R (1kHz) : – ∞ dBV

IC2

DIGITAL

ANALOG

DIR5

YSD917

IC3
A/D

AK5383

IC4

REAR L (1kHz) : – ∞ dBV
REAR R (1kHz) : – ∞ dBV
SW L (50Hz) : – ∞ dBV
SW R (50Hz) : – ∞ dBV
SW MONO (50Hz) : – ∞ dBV

L/R (DECODER BYPASS)

IC57

D/A

D/A

L

R

L/R

FILTER
DF1704

PCM1704

PCM1704

6. SPEAKERS SET

The input signal is automatically identified in the priority order of dts > DOLBY DIGITAL > PCM >
Analog. There are seven sub-menu items.
The signals output from the DSP are the same as 1. DSP THROUGH: DSP 0dB.

DSP-AX1/RX-V1

[Remote Control Code: 7A—88 (PRG 1)] [Remote Control Code: 7A—89 (PRG 2)]

6. SPEAKERS SET

MAIN:SMALL 0dB

[Remote Control Code: 7A—8B (PRG 4)]

6. SPEAKERS SET
LFE/BASS:MAIN

[Remote Control Code: 7A—8E (PRG 7)]

6. SPEAKERS SET

MAIN:LARGE -10

[Remote Control Code: 7A—8C (PRG 5)]

6. SPEAKERS SET

FRONT MIX:5ch

6. SPEAKERS SET

REAR:SMALL

The analog switch settings for each sub-menu are as shown in the table below.

Sub-menu

1 MAIN : SMALL 0dB
2 MAIN : LARGE -10
3 CENTER : NONE
4 LFE/BASS : MAIN
5 FRONT MIX : 5ch
6 CENTER : SMALL
7 REAR : SMALL

LARGE: Signals are output in all bandwidths.
SMALL: Only signals lower than 90Hz are mixed in the channel specified by LFE/BASS.
NONE: The center contents are distributed to the MAIN L/R channels after -3dB.

CENTER

LARGE
LARGE

NONE
LARGE
LARGE
SMALL
LARGE

REAR

LARGE
LARGE
LARGE
LARGE
LARGE
LARGE

SMALL

MAIN SP

SMALL
LARGE
LARGE
LARGE
LARGE
LARGE
LARGE

MAIN LVL

0dB

-10dB
0dB
0dB
0dB
0dB
0dB

LFE/BASS

SWFR
SWFR
SWFR

MAIN
SWFR
SWFR
SWFR

[Remote Control Code: 7A—8A (PRG 3)]

6. SPEAKERS SET

CENTER:NONE

[Remote Control Code: 7A—8D (PRG 6)]

6. SPEAKERS SET

CENTER:SMALL

FRONT MIX

7ch
7ch
7ch
7ch
5ch
7ch
7ch

Sub-menu

1 MAIN : SMALL 0dB
2 MAIN : LARGE -10
3 CENTER : NONE
4 LFE/BASS : MAIN
5 FRONT MIX : 5ch
6 CENTER : SMALL
7 REAR : SMALL

Application

Confirmation of high/low pass filter characteristic and gain when BASS REDIRECTION is used.
Confirmation of the effects of MAIN LEVEL function
Confirmation of gain of CENTER MIX (Only CENTER contents are output from MAIN L/R.)
Confirmation of gain of BASS MIX (Only LFE/BASS contents are output from MAIN L/R.)
Confirmation of gain of FRONT MIX (Only FRONT contents are output from MAIN L/R.)
Confirmation of high/low pass filter characteristic and gain when BASS REDIRECTION is used.
Confirmation of high/low pass filter characteristic and gain when BASS REDIRECTION is used.

DSP-AX1/RX-V1

24

DSP-AX1/RX-V1

7. DISPLAY CHK

This program is used to check lighting of the FL display which changes as shown below according to operation of
the sub-menu.
The signals are processed in the same way as EFFECT OFF of No.4. (The L/R signal is output using ANALOG
MAIN BYPASS setting.)
As for internal/external synchronization switching of super-imposing (image signals), forced external synchroniza­tion is selected by the microprocessor control.

[Remote control code: 7A—8E (PRG 8)]

Initial display

7. DISPLAY CHK

EFFECT OFF

Lighting in a lattice

Example of

short

Normal

Segment conditions of the FL driver (IC901, IC902) and the FL tube are checked by turning ON and OFF all
segments. Next, the operation of the FL driver is checked by using the dimmer control. Then a short between
segments next to each other is checked by turning ON and OFF all segments alternately (in a lattice). (In the above
example, the center segment in the second row from the top is shorted.)

[Remote control code: ––––]

All segments OFF

Lighting of segments in a lattice

[Remote control code: ––––]

[Remote control code: ––––]

All segments ON (dimmer 100%)

All segments ON (dimmer 50%)

[Remote control code: ––––]

DSP-AX1/RX-V1

25

DSP-AX1/RX-V1

8. MANUAL TEST

The test noise is output by the noise generator with a built-in DSP through the channels specified by the sub-menu.
There are ten sub-menu items.

8. MANUAL TEST

ALL

ALL [Remote control code: 7A—00 (TAPE PLAY)]
Noise is output through all channels.
MAIN L [Remote control code: 7A—01 (TAPE RW)
Noise is output through the MAIN L channel.
CENTER [Remote control code: 7A—02 (TAPE FW)]
Noise is output through the CENTER channel.
MAIN R [Remote control code: 7A—03 (TAPE STOP)]
Noise is output through the MAIN R channel.
REAR R [Remote control code: 7A—04 (TAPE PAUSE)]
Noise is output through the REAR R channel.
REAR C [Remote control code: 7A—05 (TAPE MUTE)]
Noise is output through the REAR CENTER channel.
REAR L [Remote control code: 7A—06 (TAPE A/B)]
Noise is output through the REAR L channel.
FRONT L [Remote control code: 7A—07 (TAPE DIR A)]
Noise is output through the FRONT L channel.
FRONT R [Remote control code: 7A—08 (CD PLAY)]
Noise is output through the FRONT R channel.
LFE [Remote control code: 7A—09 (CD STOP)]
Noise is output through the LFE (sub-woofer) channel.

9. RS-232C

This menu is used to check transmission of the data and the flow port of the hardware.
With the power turned off, short between pins No.2 (RxD) and No.3 (TxD) and between pins No.7
(RTS) and No.8 (CTS) of the RS-232C terminal. (Be sure to turn off the power when shorting pins.)
Start DIAG and select the menu.
There are two sub-menu items.
The signals are processed in the same way as EFFECT OFF under item 4. PRO LOGIC. (The L/R
signals are output using ANALOG MAIN BYPASS.)

RxD

TxD

9. RS-232C
TxD/RxD DATA:XX

9. RS-232C
HARD FLOW :XX

123

6789

TxD/RxD DATA

This sub-menu is used to check transmission of the test data. “OK” appears when the
data is transmitted properly and “NG” when it is not.
In this mode, NULL command transmission is continued after the test command is
transmitted.

HARD FLOW

This sub-menu is used to check operation of the flow port of the hardware. “OK” ap­pears when the check result is satisfactory and “NG” when it is not.

45

RTS CTS

DSP-AX1/RX-V1

26

DSP-AX1/RX-V1

10. PRESET

This menu reserves and inhibits initialization of the back-up RAM (parameter, set menu contents, etc. for the sound
field program). The input signals are automatically identified in the priority order of AC-3 > PCM > Analog. The
signals are processed in the same way as EFFECT OFF of No.4.

10. PRESET

INHIBIT

10. PRESET

RESERVED

INHIBIT (Initialization inhibited)

RAM initialization is not executed. Select INHIBIT to protect the values set by the user.

RESERVED

Initialization of the back-up RAM is reserved and it is executed when the power is turned ON
after canceling DIAG. RESERVED should be selected when shipping out of the factory or
resetting RAM.

CAUTION : Before setting to the PRESET RESERVED, write down the existing preset memory content of the Tuner in a

table as shown below. (This is because setting to the PRESET RESERVED will cause the user memory
content to be erased.) (RX-V1 only)

Preset group

A
B
C
D
E

● PRESET STATIONS

STATION FM FACTORY PRESET DATA (MHz)

PAGE NO. U, C, R, T R, T, L, A J

A/C/E 4 98.1 98.1 86.0

P1 P2 P3 P4 P5 P6 P7 P8

STATION AM FACTORY PRESET DATA (kHz)

PAGE NO. U, C, R, T R, T, L, A, J
1 87.5 87.5 76.0
2 90.1 90.1 83.0
3 95.1 95.1 84.0

B/D 4 530 531
5 107.9 108.0 90.0
6 88.1 88.1 78.0
7 106.1 106.1 88.0
8 107.9 108.0 82.1

1 630 630
2 1080 1080
3 1440 1440

5 1710 1611
6 900 900
7 1350 1350
8 1400 1404

DSP-AX1/RX-V1

27

DSP-AX1/RX-V1

11. FAN/AD

The sub-menu of this menu displays the A/D conversion value of the main CPU (function circuit board IC27) which
detects the keys and protection functions of the main unit in %. (100% represents 5V.)
It also displays the history of the fan being driven. When in KY0/KY1 page, it is not possible to operate the keys of
the main unit because the values of all keys are detected. But one click on the input selector of the main unit will
cancel this function and sets to the next sub-menu. Clicking there more than once would change the input. If this
has occurred, restore the input being tested. The signal processing state remains the same as that before execut­ing this menu.

11. FAN/AD
FAN HISTORY:000

FAN HISTORY (History of fan being driven)

The voltage value detected from the temperature detect circuit is read by the A/D function of
the microprocessor as a data. Based on that temperature data, the fan driving speed is
controlled in 3 stages. How the fan has been driven is displayed as the history.

bit 2 1 0

000

FAN 3.0V
FAN 3.7V
FAN 5.0V

When there is a history of the fan operation: 1

KY0 KY1
100 100

Standard values of keys (panel keys of the main unit)

DSP-AX1 RX-V1 value
INPUT MODE INPUT MODE 0
PROGRAM q TUNING q 10
PROGRAM w TUNING w 20

— EDIT 30
— FM/AM 40
— MEMORY 50
— TUNING MODE 60
—— 70
—— 80

KEY OFF state KEY OFF state 100

* Selecting “RESERVED” for DIAG menu No.10 and the factory preset

state will clear the history.

KY0/KY1 (Key scanning detect)

KY0/KY1: Panel key of the main unit (10% step)

• When the standard value is deviated by ±4%, KEY A/D fails to function prop-
erly, In this case, check the constant of the partial pressure resistor, soldering
condition, etc.

KY0

Standard

DSP-AX1 RX-V1 value

KY1

EFFECT A/B/C/D/E 0
—— 10
DIAG(*1) DIAG(*2) 20
SET MENU + PROGRAM w 30
NEXT EFFECT 40
6CH INPUT 6CH INPUT 50
SET MENU - PROGRAM q 60
SPEAKERS B SPEAKERS B 70
SPEAKERS A SPEAKERS A 80
KEY OFF state KEY OFF state 100

Standard

MTR THM PRD PRV

0 28 7 10

The above figures are examples for
reference.

(*1) : “SET MENU +” and “NEXT”
(*2) : “PROGRAM w” and “EFFECT”

DSP-AX1/RX-V1

MTR/THM/PRD/PRV [Remote control code: 7A—56 (EFFECT)]
(Detection of the tuner sensitivity , temperature of the heat sink and protection
function)

MTR:Signal sensitivity of the tuner (RX-V1 only)
THM:Detection of the temperature of the heat sink (Normal value: 6~40)

At 5% or less, the protection function works to turn off the power. At
more than 40%, possibility is that there is an error in the temperature
detection system.

PRD: Protection value for DC detection (Normal value: 1~13)

When the value is out of the normal value range, the protection function
works to turn off the power.

PRV: Protection value for power voltage (Normal value: 5~15)

When the value is out of the normal value range, the protection function
works to turn off the power.

28

DSP-AX1/RX-V1

12. IF STATUS

Using this menu, the status data is displayed in the hexadecimal notation one after another.
During signal processing, the status before execution of this menu is maintained.
If the input mode is analog fixed in the menu before execution, it is necessary to change it to the digital
mode according to the following procedure.

1) Select either DIAG menu No.2 or No.3 and enter a digital signal.

2) Menu No.12 can be selected by pressing the INPUT MODE key of the main unit. (The input mode
will be fixed to the digital mode.)

There are ten sub-menu items.
The following status information is displayed in the hexadecimal notation according to the sub-menu
operation.

12.IF STATUS 0

SCPU:8503000510

Display

bit 7654 3210

Display bit

DSP-AX1/RX-V1

Example: “E 1” reads as follows.

1110 0001

7654 3210

0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F

5th byte
4th byte
3rd byte
2nd byte

1st byte

0 0

3210
7654
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111

IF STATUS 0: Indicates the information communicated between sub-micro­processors.

1st byte

Indicates the communication time lag between the main microprocessor and the
sub-microprocessor, malfunction (in display, etc.) caused by a communication error
or some other reason, the input mode selected by the sub-microprocessor to deter
the flickering effect and the head phone state.

bit 7 HEAD PHONE IN
bit 6 0
bit 5 EXT.DECODER IN
bit 4 0
bit 3 From 0000b, PHONO/TUNER/CD/MD/TAPE/DVD/
bit 2 LD/D-TV/CBL-SAT/VCR1/VCR2/VCR3/
bit 1 V-AUX/NONE/there after ERROR
bit 0

2nd byte

Indicates the Fs information of the reproduction signals.

0x00 : analog
0x01 : 32kHz 0x02 : 44.1kHz 0x03 : 48kHz 0x04 : 64kHz 0x05 : 88kHz
0x06 : 96kHz 0x07 : Unknown
Other : Error

3rd byte

Indicates the audio code mode information of the reproduction signals.

0x00 : 1+1 0x01 : 1/0 0x02 : 2/0 0x03 : 3/0 0x04 : 2/1
0x05 : 3/1 0x06 : 2/2 0x07 : 3/2 0x08 : dts7.1
Other : Error

4th byte

Indicates the format information of the reproduction signals.

0x00 : analog (Unlock) 0x01 : Wrong digital (*1)
0x02 : Digital Data 0x03 : IEC1937 Data 0x04 : PCM Audio
0x05 : Dolby Digital 0x06 : D.D.Karaoke 0x07 : D.D.EX
0x08 : RED dts 0x09 : ORANGE dts 0x0A : dts ES
Other : Error

(*1): Digital reproduction cannot be used due to a commercial bit or 4ch audio

reason. So analog reproduction is used.

29