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RX-V795a / RDS HTR-5170

AV RECEIVER

RX-V795a / RDS HTR-5170
SERVICE MANUAL

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

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

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 accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss). IMPORTANT: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.

s CONTENTS
TO SERVICE PERSONNEL ......................................... 1 REMOTE CONTROL PANELS ..................................... 1 FRONT PANELS ........................................................... 2 REAR PANELS ......................................................... 3~4 SPECIFICATIONS ..................................................... 5~6 INTERNAL VIEW .......................................................... 7 DISASSEMBLY PROCEDURES .................................. 7 SELF DIAGNOSIS FUNCTION ............................... 8~19 FACTORY PRESET .................................................... 20 AMP ADJUSTMENTS ................................................. 21 TUNER ADJUSTMENTS ...................................... 22~25 DISPLAY DATA .......................................................... 26 IC DATA ................................................................ 27~37 PRINTED CIRCUIT BOARD ................................. 38~61 PIN CONNECTION DIAGRAM ................................... 62 BLOCK DIAGRAM ................................................ 63~64 SCHEMATIC DIAGRAM ....................................... 65~73 PARTS LIST .......................................................... 74~92 REMOTE CONTROL TRANSMITTER ........................ 93

100691
YAMAHA CORPORATION P.O.Box1,Hamamatsu,Japan

Printed in Japan

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

s 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 Model only). When service has been completed, it is imperative that you verify that all exposed conductive surfaces are properly insulated from supply circuits. q Meter impedance should be equivalent to 1500 ohm shunted by 0.15 µF. q Leakage current must not exceed 0.5mA. q Be sure to test for leakage with the AC plug in both polarities.
"CAUTION" "F821 : FOR CONTINUED PROTECTION (G model)" "F822 : FOR CONTINUED PROTECTION (A, B, G, L models)" "F823 : FOR CONTINUED PROTECTION (U, C, R, T models)" "F851 : FOR CONTINUED PROTECTION (R, T models)" AGAINST RISK OF FIRE,REPLACE ONLY WITH SAME TYPE 2.5A,250V FUSE AGAINST RISK OF FIRE,REPLACE ONLY WITH SAME TYPE 4.0A,250V FUSE AGAINST RISK OF FIRE,REPLACE ONLY WITH SAME TYPE 8.0A,125V FUSE AGAINST RISK OF FIRE,REPLACE ONLY WITH SAME TYPE 4.0A,250V FUSE

A

V

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 your hands before handling food.

s REMOTE CONTROL PANELS
wU, C, R, T and L models wA, B and G models

1

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

s FRONT PANELS
wRX-V795a

DIGITAL

NATURAL SOUND

AV RECEIVER RX-V795a

CINEMA DSP

DOLBY

DIGITAL
SURROUND

VOLUME INPUT SELECTOR
I8 20 I2

28

8

STANDBY/ON
TAPE/MD MON /EXT. DECODER

40

4

60

2


dB

0

A/B/C/D/E

1

2

3

4

5

6

7

8

MEMORY EDIT

TUNING MODE FM/AM

DOWN TUNING

UP

INPUT MODE

MAN'L/AUTO FM

AUTO/MAN'L MONO

PHONES

SPEAKERS
A B

BASS

TONE

EXTENSION BYPASS 2 3

I

BASS 0

I 2 3 4 2 3 4

TREBLE 0 I I 2 3 4 5 5 2 3 4

BALANCE 0 I I 2 3 4 5 R

LEVEL

SET MENU

EFFECT

VIDEO AUX

PROGRAM

ON

OFF

ON

OFF

4 5 5

L 5

S VIDEO

VIDEO

L

AUDIO

R

wRX-V795aRDS

B, G models
DIGITAL DOLBY

NATURAL SOUND

AV RECEIVER RX-V795aRDS

CINEMA DSP

DIGITAL
SURROUND

VOLUME INPUT SELECTOR
I8 20 I2

28

8

STANDBY/ON
TAPE/MD MON /EXT. DECODER

40

4

60

2


dB

0

A/B/C/D/E

1

2

3

4

5

6

7

8

MEMORY EDIT

TUNING MODE FM/AM

DOWN TUNING

UP

INPUT MODE

MAN'L/AUTO FM

AUTO/MAN'L MONO

PHONES

SPEAKERS
A B

BASS

TONE

EXTENSION BYPASS 2 3

I

BASS 0

I 2 3 4 2 3 4

TREBLE 0 I I 2 3 4 5 5 2 3 4

BALANCE 0 I I 2 3 4 5 R

RDS MODE/ FREQ

EON

LEVEL

SET MENU

EFFECT

VIDEO AUX

PTY SEEK

PROGRAM

ON

OFF

ON

OFF

4 5 5

L 5

MODE

START

S VIDEO

VIDEO

L

AUDIO

R

wHTR-5170
DIGITAL

NATURAL SOUND

AV RECEIVER HTR-5170

CINEMA DSP

DOLBY

DIGITAL
SURROUND

VOLUME INPUT SELECTOR
I8 20 I2

28

8

STANDBY/ON
TAPE/MD MON /EXT. DECODER

40

4

60

2


dB

0

A/B/C/D/E

1

2

3

4

5

6

7

8

MEMORY EDIT

TUNING MODE FM/AM

DOWN TUNING

UP

INPUT MODE

MAN'L/AUTO FM

AUTO/MAN'L MONO

PHONES

SPEAKERS
A B

BASS

TONE

EXTENSION BYPASS 2 3

I

BASS 0

I 2 3 4 2 3 4

TREBLE 0 I I 2 3 4 5 5 2 3 4

BALANCE 0 I I 2 3 4 5 R

LEVEL

SET MENU

EFFECT

VIDEO AUX

PROGRAM

ON

OFF

ON

OFF

4 5 5

L 5

S VIDEO

VIDEO

L

AUDIO

R

2

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

s REAR PANELS
wRX-V795a/HTR-5170 U model
CENTER

GND

EXTERNAL DECODER INPUT
MAIN CENTER SURROUND MAIN

OUTPUT
CENTER REAR (SURROUND)

REAR (SURROUND)

IMPEDANCE SELECTOR
SET BEFORE POWER ON

ATTENTION :RISQUE DE CHOC
ELECTRIQUE NE PAS OUVRIR. :TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

75 UNBAL.
CD OPTICAL DVD/LD COAXIAL DVD/LD TV/DBS OPTICAL

: 6MIN. /SPEAKER REAR : 6MIN. /SPEAKER CENTER MAIN A OR B : 4MIN. /SPEAKER A B : 8MIN. /SPEAKER : 8MIN. /SPEAKER REAR : 8MIN. /SPEAKER CENTER MAIN A OR B : 8MIN. /SPEAKER A B :16MIN. /SPEAKER

WARNING

DIGITAL SIGNAL

FM ANT
S VIDEO VIDEO

IN

OUT

ON SCREEN SELECTOR GND

REMOTE CONTROL

SUB WOOFER

SUB WOOFER

N RTL

AC OUTLETS
MAIN
SWITCHED 120V 60Hz 100W MAX. TOTAL

AM ANT
DVD/LD IN OUT VCR MONITOR OUT DVD/LD TV/DBS IN OUT VCR MONITOR OUT

A

A

THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES.OPERATION IS SUBJECT TO THE CONDITION THAT THIS DEVICE DOES NOT CAUSE HARMFUL INTERFERENCE.

CAUTION

S VIDEO SIGNAL

VIDEO SIGNAL

SEE INSTRUCTION MANUAL FOR CORRECT SETTING.

MODEL NO. RX - V795a 120 VOLTS 310 WATTS 60Hz

B
IN (PLAY) OUT (REC) PHONO CD IN DVD/LD TV/DBS VCR OUT

B
SPEAKERS

CORPORATION
CAUTION
RISK OF ELECTRIC SHOCK DO NOT OPEN MADE IN MALAYSIA

V398600 - U - O

1

3

TAPE/MD

4

AUDIO SIGNAL

MANUFACTURED UNDER LICENSE FROM DOLBY LABORATORIES LICENSING CORPORATION. " DOLBY ", " AC-3 ", " PLO LOGIC ", AND THE DOUBLE-D SYMBOL ARE TRADEMARKS OF DOLBY LABORATORIES LICENSING CORPORATION. COPYRIGHT 1992 DOLBY LABORATORIES, INC. 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.

wRX-V795a/HTR-5170 C model
CENTER

GND

EXTERNAL DECODER INPUT
MAIN CENTER SURROUND MAIN

OUTPUT
CENTER REAR (SURROUND)

REAR (SURROUND)

IMPEDANCE SELECTOR SELECTEUR D'IMPEDANCE
SET BEFORE POWER ON

ATTENTION :RISQUE DE CHOC
ELECTRIQUE NE PAS OUVRIR. :TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

75 UNBAL.
CD OPTICAL DVD/LD COAXIAL DVD/LD TV/DBS OPTICAL

DIGITAL SIGNAL

: 6MIN. /SPEAKER REAR : 6MIN. /SPEAKER CENTER MAIN A OR B : 4MIN. /SPEAKER A B: 8MIN. /SPEAKER : 8MIN. /SPEAKER REAR : 8MIN. /SPEAKER CENTER MAIN A OR B : 8MIN. /SPEAKER

WARNING

FM ANT
S VIDEO VIDEO

IN

OUT

ON SCREEN SELECTOR GND

REMOTE CONTROL

SUB WOOFER

SUB WOOFER

AC OUTLETS
MAIN

AM ANT
DVD/LD IN OUT VCR MONITOR OUT DVD/LD TV/DBS IN OUT VCR MONITOR OUT

CAUTION

SEE INSTRUCTION MANUAL FOR CORRECT SETTING. POUR UN REGLAGE CORRECT, SE REPORTER AU MANUEL D'INSTRUCTIONS

SWITCHED 120V 60Hz 100W MAX. TOTAL 0.8A MAX. TOTAL

A

A

ATTENTION

S VIDEO SIGNAL

VIDEO SIGNAL

MODEL NO. RX - V795a 120 VOLTS 350 WATTS 440 VA 60Hz

CORPORATION
MADE IN MALAYSIA

B
IN (PLAY) OUT (REC) PHONO CD IN DVD/LD TV/DBS VCR OUT

B
SPEAKERS

V398610 - C - O

CAUTION
RISK OF ELECTRIC SHOCK DO NOT OPEN
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.

1

3

TAPE/MD

4

AUDIO SIGNAL

MANUFACTURED UNDER LICENSE FROM DOLBY LABORATORIES LICENSING CORPORATION. " DOLBY ", " AC-3 ", " PLO LOGIC ", AND THE DOUBLE-D SYMBOL ARE TRADEMARKS OF DOLBY LABORATORIES LICENSING CORPORATION. COPYRIGHT 1992 DOLBY LABORATORIES, INC. ALL RIGHTS RESERVED.

wRX-V795a/HTR-5170 R, T models
CENTER

GND

EXTERNAL DECOODER INPUT
MAIN CENTER SURROUND MAIN

OUTPUT
CENTER REAR (SURROUND)

REAR (SURROUND)

IMPEDANCE SELECTOR
SET BEFORE POWER ON

VOLTAGE SELECTOR

75 UNBAL.
CD OPTICAL DVD/LD COAXIAL DVD/LD TV/DBS OPTICAL

: REAR : CENTER MAIN A OR B : A B:

6MIN. /SPEAKER 6MIN. /SPEAKER 4MIN. /SPEAKER 8MIN. /SPEAKER

DIGITAL SIGNAL FM ANT
PAL NTSC S VIDEO VIDEO

ON SCREEN SELECTOR GND

SUB WOOFER

SUB WOOFER

: 8MIN. /SPEAKER REAR : 8MIN. /SPEAKER CENTER MAIN A OR B : 8MIN. /SPEAKER A B :16MIN. /SPEAKER

AC OUTLETS
MAIN
SWITCHED 100W MAX.TOTAL

AM ANT
DVD/LD
50kHz 9kHz

IN

OUT VCR

MONITOR OUT

DVD/LD

TV/DBS

IN

OUT VCR

MONITOR OUT

A

A
CAUTION
SEE INSTRUCTION MANUAl FOR CORRECT SETTING.

S VIDEO SIGNAL

VIDEO SIGNAL

MODEL NO. RX - V795a 110/120/220/240 VOLTS 350 WATTS 50/60Hz

CORPORATION
100kHz 10kHz

FM

AM

B
IN (PLAY) OUT (REC) IN DVD/LD TV/DBS VCR OUT

B
SPEAKERS
MANUFACTURED UNDER LICENSE FROM DOLBY LABORATORIES LICENSING CORPORATION. " DOLBY ", " AC-3 ", " PLO LOGIC ", AND THE DOUBLE-D SYMBOL ARE TRADEMARKS OF DOLBY LABORATORIES LICENSING CORPORATION. COPYRIGHT 1992 DOLBY LABORATORIES, INC. ALL RIGHTS RESERVED.

V398620 - R, T - O

FREQUENCY STEP

PHONO

CD

1

3

TAPE/MD

4

AUDIO SIGNAL

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.

wRX-V795a/HTR-5170 A model
CENTER

GND

EXTERNAL DECODER INPUT
MAIN CENTER SURROUND MAIN

OUTPUT
CENTER REAR (SURROUND)

REAR (SURROUND)

IMPEDANCE SELECTOR
SET BEFORE POWER ON

75 UNBAL.
CD OPTICAL DVD/LD COAXIAL DVD/LD TV/DBS OPTICAL

: 6MIN. /SPEAKER REAR : 6MIN. /SPEAKER CENTER MAIN A OR B : 4MIN. /SPEAKER A B : 8MIN. /SPEAKER : 8MIN. /SPEAKER REAR : 8MIN. /SPEAKER CENTER MAIN A OR B : 8MIN. /SPEAKER A B :16MIN. /SPEAKER AC OUTLET
SWITCHED 100W MAX.

N89

DIGITAL SIGNAL

FM ANT
S VIDEO VIDEO

IN

OUT

ON SCREEN SELECTOR GND

REMOTE CONTROL

SUB WOOFER

SUB WOOFER

MAINS

MAIN AM ANT
DVD/LD IN OUT VCR MONITOR OUT DVD/LD TV/DBS IN OUT VCR MONITOR OUT

A

A
CAUTION
SEE INSTRUCTION MANUAL FOR CORRECT SETTING.

S VIDEO SIGNAL

VIDEO SIGNAL

MODEL NO. RX - V795a 350 WATTS 240 VOLTS 50Hz

CORPORATION
MADE IN MALAYSIA

B
IN (PLAY) OUT (REC) PHONO CD IN DVD/LD TV/DBS VCR OUT

B
SPEAKERS
MANUFACTURED UNDER LICENSE FROM DOLBY LABORATORIES LICENSING CORPORATION. " DOLBY ", " AC-3 ", " PLO LOGIC ", AND THE DOUBLE-D SYMBOL ARE TRADEMARKS OF DOLBY LABORATORIES LICENSING CORPORATION. COPYRIGHT 1992 DOLBY LABORATORIES, INC. ALL RIGHTS RESERVED.

V398630 - A - O

1

3

TAPE/MD

4

AUDIO SIGNAL

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.

3

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

wRX-V795aRDS B model
CENTER

GND

EXTERNAL DECODER INPUT
MAIN CENTER SURROUND MAIN

OUTPUT
CENTER REAR (SURROUND)

REAR (SURROUND)

IMPEDANCE SELECTOR
SET BEFORE POWER ON

75 UNBAL.
CD OPTICAL DVD/LD COAXIAL DVD/LD TV/DBS OPTICAL

: 6MIN. /SPEAKER REAR : 6MIN. /SPEAKER CENTER MAIN A OR B : 4MIN. /SPEAKER A B : 8MIN. /SPEAKER : 8MIN. /SPEAKER REAR : 8MIN. /SPEAKER CENTER MAIN A OR B : 8MIN. /SPEAKER A B :16MIN. /SPEAKER

DIGITAL SIGNAL

FM ANT
S VIDEO VIDEO

ON SCREEN SELECTOR GND

SUB WOOFER

SUB WOOFER

MAINS

MAIN AM ANT
DVD/LD IN VCR OUT MONITOR OUT DVD/LD TV/DBS IN OUT VCR MONITOR OUT

AC OUTLET

A

A
CAUTION
SEE INSTRUCTION MANUAL FOR CORRECT SETTING.

SWITCHED 100W MAX.

S VIDEO SIGNAL

VIDEO SIGNAL

MODEL NO. RX - V795aRDS 230 VOLTS 350 WATTS 50Hz

CORPORATION
MADE IN MALAYSIA

B
IN (PLAY) OUT (REC) PHONO CD IN DVD/LD TV/DBS VCR OUT

B
SPEAKERS
MANUFACTURED UNDER LICENSE FROM DOLBY LABORATORIES LICENSING CORPORATION. " DOLBY ", " AC-3 ", " PLO LOGIC ", AND THE DOUBLE-D SYMBOL ARE TRADEMARKS OF DOLBY LABORATORIES LICENSING CORPORATION. COPYRIGHT 1992 DOLBY LABORATORIES, INC. ALL RIGHTS RESERVED.

V398650 - B - O

1

3

TAPE/MD

4

AUDIO SIGNAL

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.

wRX-V795aRDS G model
CENTER

GND

EXTERNAL DECODER INPUT
MAIN CENTER SURROUND MAIN

OUTPUT
CENTER REAR (SURROUND)

REAR (SURROUND)

IMPEDANCE SELECTOR
SET BEFORE POWER ON

75 UNBAL.
CD OPTICAL DVD/LD COAXIAL DVD/LD TV/DBS OPTICAL

: 6MIN. /SPEAKER REAR : 6MIN. /SPEAKER CENTER MAIN A OR B : 4MIN. /SPEAKER A B : 8MIN. /SPEAKER : 8MIN. /SPEAKER REAR : 8MIN. /SPEAKER CENTER MAIN A OR B : 8MIN. /SPEAKER A B :16MIN. /SPEAKER

DIGITAL SIGNAL

FM ANT
S VIDEO VIDEO

ON SCREEN SELECTOR GND

SUB WOOFER

SUB WOOFER

MAINS

AC OUTLETS
MAIN
SWITCHED 100W MAX. TOTAL

AM ANT
DVD/LD IN VCR OUT MONITOR OUT DVD/LD TV/DBS IN OUT VCR MONITOR OUT

A

A
CAUTION
SEE INSTRUCTION MANUAL FOR CORRECT SETTING.

S VIDEO SIGNAL

VIDEO SIGNAL

MODEL NO. RX - V795aRDS 230 VOLTS 350 WATTS 50Hz

CORPORATION
MADE IN MALAYSIA

B
IN (PLAY) OUT (REC) PHONO CD IN DVD/LD TV/DBS VCR OUT

B
SPEAKERS
MANUFACTURED UNDER LICENSE FROM DOLBY LABORATORIES LICENSING CORPORATION. " DOLBY ", " AC-3 ", " PLO LOGIC ", AND THE DOUBLE-D SYMBOL ARE TRADEMARKS OF DOLBY LABORATORIES LICENSING CORPORATION. COPYRIGHT 1992 DOLBY LABORATORIES, INC. ALL RIGHTS RESERVED.

V398660 - G - O

1

3

TAPE/MD

4

AUDIO SIGNAL

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.

wRX-V795a

L model
CENTER

GND

EXTERNAL DECODER INPUT
MAIN CENTER SURROUND MAIN

OUTPUT
CENTER REAR (SURROUND)

REAR (SURROUND)

IMPEDANCE SELECTOR
SET BEFORE POWER ON

75 UNBAL.
CD OPTICAL DVD/LD COAXIAL DVD/LD TV/DBS OPTICAL

: 6MIN. /SPEAKER REAR : 6MIN. /SPEAKER CENTER MAIN A OR B : 4MIN. /SPEAKER A B : 8MIN. /SPEAKER : 8MIN. /SPEAKER REAR : 8MIN. /SPEAKER CENTER MAIN A OR B : 8MIN. /SPEAKER A B :16MIN. /SPEAKER

DIGITAL SIGNAL

FM ANT
S VIDEO VIDEO

ON SCREEN SELECTOR GND

SUB WOOFER

SUB WOOFER

MAINS

AC OUTLETS
MAIN
SWITCHED 100W MAX. TOTAL

AM ANT
DVD/LD IN VCR OUT MONITOR OUT DVD/LD TV/DBS IN OUT VCR MONITOR OUT

A

A
CAUTION
SEE INSTRUCTION MANUAL FOR CORRECT SETTING.

S VIDEO SIGNAL

VIDEO SIGNAL

MODEL NO. RX - V795a 230 VOLTS 350 WATTS 50Hz

CORPORATION
MADE IN MALAYSIA

B
IN (PLAY) OUT (REC) PHONO CD IN DVD/LD TV/DBS VCR OUT

B
SPEAKERS
MANUFACTURED UNDER LICENSE FROM DOLBY LABORATORIES LICENSING CORPORATION. " DOLBY ", " AC-3 ", " PLO LOGIC ", AND THE DOUBLE-D SYMBOL ARE TRADEMARKS OF DOLBY LABORATORIES LICENSING CORPORATION. COPYRIGHT 1992 DOLBY LABORATORIES, INC. ALL RIGHTS RESERVED.

V398640 - L - O

1

3

TAPE/MD

4

AUDIO SIGNAL

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.

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

REAR
(SURROUND)

IMPEDANCE SELECTOR
SET BEFORE POWER ON

:RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR. :TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

ATTENTION WARNING

: 6MIN. /SPEAKER REAR : 6MIN. /SPEAKER CENTER MAIN A OR B : 4MIN. /SPEAKER A B : 8MIN. /SPEAKER : 8MIN. /SPEAKER REAR : 8MIN. /SPEAKER CENTER MAIN A OR B : 8MIN. /SPEAKER A B :16MIN. /SPEAKER

N RTL

AC OUTLETS
SWITCHED 120V 60Hz 100W MAX. TOTAL

THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES.OPERATION IS SUBJECT TO THE CONDITION THAT THIS DEVICE DOES NOT CAUSE HARMFUL INTERFERENCE.

IMPEDANCE SELECTOR
60Hz

CAUTION

SEE INSTRUCTION MANUAL FOR CORRECT SETTING.

MODEL NO. RX - V795a 120 VOLTS 310 WATTS

CORPORATION
CAUTION
RISK OF ELECTRIC SHOCK DO NOT OPEN IES LICENSING DOUBLE-D SYMBOL ORPORATION. RESERVED. MADE IN MALAYSIA

V398600 - U - O
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.

4

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

s SPECIFICATIONS
s AUDIO SECTION
Minimum RMS Output Power per Channel RX-V795a MAIN, 20Hz to 20kHz, 0.04% THD, 8 .............. 85W+85W CENTER, 20Hz to 20kHz, 0.04% THD, 8 ................. 85W REAR, 20Hz to 20kHz, 0.04% THD, 8 ............. 85W+85W HTR-5170 MAIN, 1kHz, 0.07% THD, 8 .......................... 100W+100W CENTER, 1kHz, 0.07% THD, 8 ............................... 100W REAR, 1kHz, 0.07% THD, 8 ......................... 100W+100W Maximum Power per Channel (R,T models only) MAIN L/R, 1kHz, EIAJ, 10% THD, 8 ............ 125W+125W CENTER, 1kHz, EIAJ, 10% THD, 8 ........................ 125W REAR L/R, 1kHz, EIAJ, 10% THD, 8 ........... 125W+125W Dynamic Power per Channel (IHF) MAIN L/R, 8/6/4/2 ................................ 115/140/170/200W Dynamic Headroom (U, C, models only) MAIN L/R, 8 ............................................................ 1.31dB DIN Standard Output Power Per Channel B, G, L Models MAIN L/R, 1kHz, 0.7% THD, 4 ................................ 130W IEC Power (L model only) MAIN L/R, 1kHz, 0.04% THD, 8 ................................ 95W Power Band Width MAIN L/R, 0.09% THD, 40W/8 ................. 10Hz to 50kHz Damping Factor MAIN L/R, 20Hz to 20kHz, (SP.A) 8 ................ 80 or more Input Sensitivity/Impedance PHONO MM ..................................................... 2.5mV/47k CD, etc ............................................................ 150mV/47k Maximum Input Signal Level PHONO MM, 1kHz, 0.04% THD ................. 110mV or more CD, etc, 1kHz, 0.5% THD (Effect on) ............. 2.2V or more Output Level/Impedance REC OUT ....................................................... 150mV/1.0k PRE OUT ........................................................... 2.6V/1.1k SUB WOOFER (MAIN SP : SMALL) ................. 4.0V/1.2k Headphone Jack Rated Output/Impedance 1kHz, 150mV, 8 .............................................. 0.55V/390 Frequency Response (20Hz to 20kHz) CD, etc, MAIN ......................................................... 0±0.5dB RIAA Equalization Deviation (20Hz to 20kHz) PHONO MM ............................................................ 0±0.5dB Total Harmonic Distortion (20Hz to 20kHz) PHONO MM to REC OUT (1V) ..................... 0.02% or less CD, etc to MAIN SP OUT (40W/8) ........... 0.025% or less Signal-to-Noise Ratio (IHF-A-Network) PHONO MM, Input Shorted (5mV) REC OUT U, C, R, T models ........................................... 86dB or more B, G, A, L models ............................................ 82dB or more CD, etc, Input Shorted, SP OUT (Effect off) .... 96dB or more Residual Noise (IHF-A-Network) MAIN L/R, SP OUT ........................................ 170µV or less Channel Separation (Vol. ­30dB, Effect off) PHONO MM, Input Shorted, 1kHz/10kHz ........................... 60dB or more/55dB or more CD, etc, Input 5.1k Shorted, 1kHz/10kHz ......................... 60dB or more/45dB or more Tone Control Characteristics BASS : Boost/cut ....................................... ±10dB (50Hz) Turnover Frequency ................................. 350Hz TREBLE : Boost/cut ..................................... ±10dB (20kHz) Turnover Frequency ................................ 3.5kHz Filter Characteristics MAIN, REAR SP SMALL : H.P.F. ....... fc = 90Hz, 12dB/oct. SUB WOOFER : L.P.F. ....................... fc = 90Hz, 18dB/oct. Bass Extension (MAIN L/R) ................................. +6dB (50Hz) Gain Tracking Error (0dB to ­60dB) ..................... 3dB or less Tuner Output Level/Impedance FM (100% mod.) 1kHz U, C, R, T models ......................................... 550mV 40kHz Dev. A, B, G, L models ............................... 550mV AM (30% mod. 1kHz) ................................................ 150mV

s FM SECTION
Tuning Range U, C models .............................................. 87.5 to 107.9MHz A, B, G, L models ................................. 87.50 to 108.00MHz R, T models ................... 87.5 to 108.0/87.50 to 108.00MHz 50dB Quieting Sensitivity (IHF, 75 ) U, C, R, T models only Mono ......................................................... 1.6µV (15.3dBf) Stereo ......................................................... 23µV (38.5dBf) Usable Sensitivity (75 ) A, B, G, L models only DIN, MONO (S/N 26dB) ........................................... 0.9µV DIN, STEREO (S/N 46dB) ......................................... 28µV Alternate Channel Selectivity (±400kHz) U, C, R, T models only ................................................. 75dB Selectivity (two signals, 40kHz Dev.) A, B, G, L models only ................................................. 55dB Signal-to-Noise Ratio Mono/Stereo (IHF) U, C, R, T models ................................................. 81/75dB Mono/Stereo (DIN-weighted, 40kHz Dev.) A, B, G, L models ................................................. 75/69dB Harmonic Distortion Mono/Stereo (1kHz) ................................................ 0.1/0.2% Stereo Separation 1kHz .............................................................................. 48dB Frequency Response 20Hz to 15kHz ......................................................... 0±1.0dB

s AM SECTION
Tuning Range U, C models ................................................ 530 to 1,710kHz A, B, G, L models ....................................... 531 to 1,611kHz R, T models .......................... 530 to 1,710/531 to 1,611kHz Usable Sensitivity ..................................................... 300µV/m Signal-to-Noise Ratio ..................................................... 52dB

5

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

s VIDEO SECTION
Video Signal Type U, C models ................................................................ NTSC A, B, G, L models .......................................................... PAL R, T models ......................................................... NTSC/PAL Video Signal Level .................................................. 1Vp-p/75 S-Video Signal Level Y .......................................................................... 1Vp-p/75 C ................................................................... 0.286Vp-p/75 Maximum Input Level ................................... 1.5Vp-p or more Signal-to-Noise Ratio ....................................... 50dB or more Monitor Output Frequency Response .. 5Hz to 10MHz, ­3dB

349.5(13­3/4") 130(5­1/8")
435(17­1/8")

Power Supply U, C models ................................................ AC 120V, 60Hz A model ....................................................... AC 240V, 50Hz B, G, L models ............................................ AC 230V, 50Hz R, T models ....................... AC 110/120/220/240V, 50/60Hz Power Consumption U model ....................................................................... 310W C model ........................................................... 350W/440VA A, B, G, L, R, T models .............................................. 350W Maximum Power Consumption (R model only) ............ 690W AC Outlets U, C, G, L, R, T models, Switched x 2 ... 100W max (Total) B, A model, Switched x 1 ................................... 100W max Dimensions (W x H x D) .......................... 435 x 151 x 391mm (17-1/8" x 5-15/16" x 15-3/8") Weight ..................................................... 13.0kg (28 lbs 11oz) Accessories ........................................... AM loop antenna x 1 Indoor FM antenna x 1 Remote Control Transmitter x 1 Battery (size "AA", "R06") x 2

Units : mm (inch)

* Specifications are subject to change without notice. U ............................ C ............................ A ............................ B ............................ G ............................ L ............................ R ............................ T ............................ USA model Canadian model Australian model British model European model Singapore model General model China model

Manufactured under license from Dolby Laboratories Licensing Corporation. "Dolby", "AC-3", "Pro Logic", and the double-D symbol V are trademarks of Dolby Laboratories Licensing Corporation. Copyright 1992 Dolby Laboratories, Inc. 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.

21 (13/16")

151(5­15/16")

20 (13/16")

s GENERAL

391(15­3/8")

21.5 (7/8")

q DIMENSIONS

6

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

s INTERNAL VIEW
q we r t y ui o !0
q P. C. B. INPUT (3) w P. C. B. MAIN (6) e P. C. B. INPUT (4) (R, T models) r P. C. B. MAIN (5) t P. C. B. VIDEO (2) y P. C. B. MAIN (7) u P. C. B. OPERATION (4) i P. C. B. VIDEO (1) o P. C. B. OPERATION (5) !0 P. C. B. TUNER !1 P. C. B. DSP !2 P. C. B. OPERATION (2) !3 P. C. B. OPERATION (6) !4 P. C. B. INPUT(1) !5 P. C. B. MAIN(2) !6 P. C. B. OPERATION (3) !7 P. C. B. MAIN (1) !8 P. C. B. MAIN (4) !9 P. C. B. MAIN (3)

!9

!8

!7

!6 !5

!4

!3

!2

!1

s DISASSEMBLY PROCEDURES

(Remove parts in disassembly order as numbered.)

1. Removal of Top Cover a. Remove 4 screws (q), and 4 screws (w) in Fig. 1.
q

w w w

2. Removal of Bottom Cover a. Remove 6 screws (e) in Fig. 1. 3. Removal of Front Panel a. Remove 5 knobs. b. Remove 6 screws (r) in Fig. 1.

Top Cover r q

Bottom Cover

Front Panel e e r e

Fig. 1

7

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

s SELF DIAGNOSIS FUNCTION
1. PURPOSE AND OPERATION
The RX-V795a/RDS/HTR-5170 has a Self Diagnosis Function to locate a faulty part, if any, by inspecting and taking measurements. There are 11 main items in the diagnostic menu and some of them have sub-menu items as listed below.
No. 1 2 MAIN MENU ANALOG THROUGH DSP THROUGH SUB MENU 1. MAIN BYPASS 2. DSP 0dB 1. YSS918­SRAM 2. YSS918 3. DSP FULL BIT 1. STATUS (BINARY FORM) 1. CENTER LARGE 2. EFFECT OFF 1. 2. 3. 4. 5. 6. 7. 8. 9. 6 EFFECT OFF /DISPLAY CHECK MAIN : SMALL 0dB MAIN : LARGE 0dB MAIN : LARGE ­10dB LFE/BASS : MAIN CENTER : NONE LFE/BASS : MAIN LFE/BASS : SWFR CENTER : NONE CENTER : SMALL REAR : SMALL FRONT MIX REMOTE CODE 7A­88 : DSP/1 ­­­ 7A­89 : DSP/2 ­­­ ­­­ ­­­ 7A­8A : DSP/3 ­­­ 7A­8B : DSP/4 7A­8C : DSP/5 7A­8D : DSP/6 7A­8E : DSP/7 7A­8F : DSP/8 7A­90 : DSP/9 7A­91 : DSP/11 ­­­ 7A­85 : DSP/15 7A­56 : DSP or ···/16 ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­ ­­­

3 4 5

AC­3/DTS THROUGH PRO LOGIC SPEAKERS SET

1. EFFECT OFF 2. VFD DISP OFF 3. VFD DISP ALL 4. VFD DIMMER 5. CHECKED PATTERN 1. ALL 2. MAIN L 3. CENTER 4. MAIN R 5. REAR R 6. REAR L 7. LFE 1. INHIBIT(Inhibit Memory Init) 2. RESERVED (Init. Memory) 1. AD CHECK : 000 2. KEYO, KEY1 3. KEY2, REC OUT 4. TUNING SIGNAL HEAT SINK TEMP. 5. DC PROTECTION PS PROTECTION 1./2. DSP CPU STATUS (1)/(2) 3./4. CHANNEL STATUS (1)/(2) 5./6. SUB CPU VERSION (1)/(2) 7./8. SUB CPU CHECK SUM (1)/(2) 9./10. BSI0 (1)/(2) 11./12. BSI1 (1)/(2) 13./14. BSI2 (1)/(2) 15./16. BSI3 (1)/(2) 17./18. BSI4 (1)/(2) 19./20. BSI5 (1)/(2) 1. MAIN MC CHECK SUM 2. DSP MC CHECK SUM 3. MAIN M.C. VERSION 4. SUB M.C. VERSION 5. PORT INFORMATION 6. EXIT

7

MANUAL TEST

8 9

FACTORY PRESET AD DATA CHECK

10

STATUS

11

VERSION CHECK /CPU CHECK SUM /EXIT

8

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

2. BEGINNING AND CANCELLATION
(1) STARTING UP THE FUNCTION AND THE DISPLAY
There are two ways to start up. One is by using the front panel keys, another is by using the remote control transmitter. After starting up, the menu No. 1 is displayed. A. How to start test mode There is a method of starting the self-diagnosis function. Using the keys on the main unit: Hold down the "INPUT MODE" and "FM/AM" keys simultaneously, and press the "STANDBY/ON" key; submenu No. 1 of diagnosis main menu No. 1 will start. B. Settings for start-up of diagnostic program The settings used when starting the diagnostic program are as follows.
1. EFFECT LEVEL CHANNEL LEVEL (dB) 2. 3. 4. 5. 6. 7. CENTER 0 : R SUR. 0 L SUR. 0 SWFR 0

MUTING INPUT (VIDEO) CENTER SPEAKER REAR SPEAKER MAIN SPEAKER LFE/BASS OUT

: OFF : DVD/LD (DVD/LD) : LARGE : LARGE : LARGE : SWFR

C. Start-up display The diagnostic menu list appears on the monitor screen and the information of the protection function appears on the front panel display of the main unit. MONITOR SCREEN

DIAGNOSTIC MENU
1.ANALOG THR 7.MAN TST 2.DSP THR 8.PRESET 3.AC-3/DTS THR 9.AD DATA 4.PRO LOGIC 10.STATUS 5.SPEAKERS 11.VER/EX 6.EFCT OFF/DISP

On the FL display of the main unit, an opening message (or the history of the protection) appears for 2 seconds before the diagnostic menu No.1 MAIN BYPASS.

CHK SUM:XXXX

X

1.

MAIN BYPASS

9

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170 q FL display at start-up of diagnostic program When the diagnostic program has started, the history (*2) of the protection function (*1) is displayed. If the protection function has been activated in the past, the type and voltage value are displayed. After a few seconds the diagnosis function menu will appear. (*1) If some faulty condition is detected in the excess current, the power source or the DC, the power will be turned off automatically. (*2) The protection records will be cleared when "PRESET RSRVD" is selected in diagnosis menu No. 8 and FACTORY PRESET is engaged.

q History of protection function Each case of the history of the protection function is displayed as shown below. Main microprocessor check sum (4-digit, hexadecimal) and version (one letter) display * Used when checking on-board writing to main microprocessor.

CHK SUM:XXXX

X

I

PROTECTION

Appears when the current protection function is operating. When power is turned on in an abnormal status, the power relay will come on, protection will operate immediately, and power will turn off. Appears when the power protection function is operating. For the % value, the voltage at that point is shown by 5V/100%. When power is turned on in an abnormal status, power will turn off after half a second.

PS

PRT

:

XX%

DC

PRT

:

XX%

Appears when the power amp DC protection function is operating. For the % value, the voltage at that point is shown by 5V/100%. When power is turned on in an abnormal status, power will turn off after two seconds.

TMP

PRT

:

XX%

Appears when the heat sink thermal protection function is operating. For the % value, the voltage at that point is shown by 5V/100%. When power is turned on in an abnormal status, power will turn off after one second.

* For the voltages of Power and DC protection functions, see diagnosis menu No.9, which will be described later.

(2) EXITING METHOD
The diagnosis function can be exited by any of the following procedures. Take care with the setting of backup memory initialization menu (diagnosis No. 8) when exited the diagnosis function: 1. Select diagnosis menu No. 11/submenu No. 6 "EXIT". 2. Press the "STANDBY/ON" key on the main unit or "STANDBY" key on the remote control to turn power off.

10

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

3. OPERATION AND DISPLAY WHEN STARTING DIAGNOSIS FUNCTION
(1) Selection of diagnostic menu
The diagnostic menu and the sub-menu can be selected by using the front panel keys of the main unit or the remote control unit. q Selection by using the front panel keys The main menu can be changed cyclically by using the "TUNING UP/DOWN" keys; and the submenu, by using the "PROGRAM -/+" keys. The "+" or "UP" key will increase the main or submenu number. q Selection by using the remote control unit The remote control codes in the menu list (on page 8) correspond to the DSP program, test and effect keys. See the figure on the right.
DD/DTS SURROUND MOVIE THEATER 1 MOVIE THEATER 2

MONO MOVIE TV SPORTS

DISCO

ROCK CONCERT JAZZ CLUB

CHURCH

HALL

TEST

EFFECT

(2) Display during Menu Operation
During diagnosis function, the diagnostic menu will appear on the superimposed screen, except for main menu No. 6. As a rule, the main menu No. and submenu No. will appear in the FL display.

(3) Other functions available while diagnosis function is active
Listed below are the other functions available while the diagnosis function is active. · · · · · Selecting input source (Tape monitor/Ext. decoder) Adjusting effect level (Center, Rear, Sub-woofer) Adjusting master volume Muting on/ off Tuning power off

(4) Diagnosis default status
When not otherwise specified, default settings and values in each menu are as follows: All "SPEAKERS" : LARGE ALL electronic VRs : 0dB D-RANGE : MAX LFE LEVEL : 0dB CENTER DELAY : 0ms

11

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

4. CONTENTS OF DIAGNOSIS FUNCTION
This section describes the contents of the self diagnosis function in detail.

(1) ANALOG THROUGH
The input is fixed to analog (A/D). There are two submenus.

1. MAIN BYPASS
The MAIN L/R signals bypass the analog circuits to be output. For C/LFE, FL/FR and RL/RR, the MAIN L/R signals via the DSP are output without being processed (through). (Remote control code 7A-88 : DSP/1)

CODEC.AD
ANALOG IN

AC3D2av(YSS918)
L/R

DA AK4320

MAIN L MAIN R

AK4526
DECODER
L/R

DSP

L/R L/R L/R

CODEC.DA

FRONT L FRONT R REAR L REAR R

DIR2
DIGITAL IN

YM3436

AK4526

CENTER SUBWOOFER

1M SRAM

This shows that the device is not operating.

1. DSP 0dB
MAIN L/R, C/LFE, FL/FR and RL/RR pass through the DSP without being processed.

CODEC.AD
ANALOG IN

AC3D2av(YSS918)
L/R

DA AK4320

MAIN L MAIN R

AK4526
DECODER
L/R

DSP

L/R L/R L/R

CODEC.DA

FRONT L FRONT R REAR L REAR R

DIR2
DIGITAL IN

YM3436

AK4526

CENTER SUBWOOFER

1M SRAM

12

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

(2) DSP THROUGH
The input is automatically discriminated by signal detection and switched with priorities AC3>DTS>PCM AUDIO>analog. There are the following three submenus.

2. YSS918-SRAM
MAIN L/R are input to the DSP via AC3D2av, pass through SRAM, and are then output to all channels without being processed. (Remote control code 7A-89 : DSP/2)

CODEC.AD
ANALOG IN

AC3D2av(YSS918)
L/R

DA AK4320

MAIN L MAIN R

AK4526
DECODER
(L+R)/2

DSP

(L+R)/2 (L+R)/2 (L+R)/2

CODEC.DA

FRONT L FRONT R REAR L REAR R

DIR2
DIGITAL IN

YM3436
L/R L/R

AK4526

CENTER SUBWOOFER

1M SRAM

2. YSS918
MAIN L/R are input to the DSP via AC3D2av, and then output to all channels without being processed.

CODEC.AD
ANALOG IN

AC3D2av(YSS918)
L/R

DA AK4320

MAIN L MAIN R

AK4526
DECODER
L/R

DSP

L/R L/R L/R

CODEC.DA

FRONT L FRONT R REAR L REAR R

DIR2
DIGITAL IN

YM3436

AK4526

CENTER SUBWOOFER

1M SRAM

2. DSP FULL BIT
MAIN L/R are input to the DSP via AC3D2av, and then output to all channels without being processed. The head margin is abolished, and DSP outputs digital full-bit signals. Same as the above menu, except that the digital data is output to DA with full bits.

13

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

(3) AC3/DTS THROUGH
The input is digital signal only. Dolby Digital (AC-3) or DTS decoding operation is executed, according to the input source.

3. ST:10001001
AC3 decoded signals are output to each channel via AC3D2av.

CODEC.AD
ANALOG IN

AC3D2av(YSS918)
L/R

DA AK4320

MAIN L MAIN R

AK4526
DECODER DSP

CODEC.DA DIR2
DIGITAL IN DOLBY DIGITAL or C/LFE PRO LOGIC or DTS(v795~) LS/RS C/LFE LS/RS CENTER SUBWOOFER

YM3436

AK4526

REAR L REAR R

Ac3 Status Info. : Bit 7 1

6 0

5 0

4 0

3 1

2 0

1 0

0 1 1 during AC3 decode OK 1 during DTS decode OK 1 during red DTS lock 1 for audio other than PCM linear audio Demodulator muting (without RF signal) IEC958 digital format error IEC958 commercial-use device bit IEC958 digital data bit

(4) PRO LOGIC
The input is automatically discriminated by PCM>analog. DTS is prohibited. The submenu is switched between PRO LOGIC (AUTO BALANCE OFF) and EFFECT OFF.

4. PRO CNTR:LRG
The input is automatically detected whether it is RF, PCM or analog. With analog, PCM audio or Dolby Digital (AC3) 2/0 input, the L, R, C and S signals are prologic decoded and output. With Dolby Digital (AC-3) other than 2/0, PRO LOGIC does not operate, and Dolby Digital (AC-3) playback is executed. (Remote control code 7A-8A : DSP/3)

CODEC.AD
ANALOG IN

AC3D2av(YSS918)
L/R

DA AK4320

MAIN L MAIN R

AK4526
DECODER DSP

CODEC.DA DIR2
DIGITAL IN DOLBY DIGITAL or PRO LOGIC or DTS(v795~) C S C S CENTER

YM3436

AK4526

REAR L REAR R

1M SRAM

4. PRO EFECT:OFF
MAIN L/R are bypassed and output. 14

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

(5) SPEAKERS SET
The input is automatically discriminated by AC3>DTS>PCM>analog. The L/R signals are output to the channels specified by the submenu without being processed (through).

There are the following 9 submenu items: The signal from the DSP block is normally in the effect off status for menu items 1-4. For other menu items, the same signal as in 2. DSP THROUGH: YSS918 menu is output.

5.MAIN:SML 0dB

5.MAIN:LRG 0dB

5.MAIN:LRG -10

5.B:M&C:NONE

5.BASS:MAIN

5.BASS:SW

5.CENTER:NONE

5.C:SML&R:SML

5.FRONT MIX

The analog switches in each submenu are set as follows:
SUB MENU 1 2 3 4 5 6 7 8 9 MAIN:SML 0dB MAIN:LRG 0dB MAIN:LRG -10 B:M&C:NONE BASS:MAIN LFE/BASS:SWFR CENTER:NONE C:SML&R:SML FRONT MIX REMOTE CODE 7A-8B 7A-8C 7A-8D 7A-8E 7A-8F 7A-90 7A-91 ­­­ 7A-85 CENTER SP LARGE LARGE LARGE NONE LARGE LARGE NONE SMALL LARGE REAR SP LARGE LARGE LARGE LARGE LARGE LARGE LARGE SMALL LARGE MAIN SP SMALL LARGE LARGE LARGE LARGE LARGE LARGE LARGE LARGE MAIN LVL LFE/BASS 0dB 0dB -10dB 0dB 0dB 0dB 0dB 0dB 0dB SWFR SWFR SWFR MAIN MAIN SWFR SWFR SWFR SWFR OUTPUT MAIN L/R MAIN L/R MAIN L/R MAIN L/R LFE -> L/R LFE -> SWFR CENTER -> L/R CENTER/REAR FRONT -> L/R

LARGE: Mode in which speakers with high bass-sound playback capability (large unit) are used. Full frequency band widths is output. SMALL : Mode in which speakers with low bass-sound playback capability (small unit) are used. Frequencies below 90 Hz are mixed with the channel specified by LFE/BASS. NONE : Mode in which center speaker is not used. The center audio signal is reduced by 3dB and mixed into MAIN L/R. M : MAIN C : CENTER R : REAR SWFR : SUBWOOFER B : BASS Output : The signal before MASTER VOLUME is indicated.

15

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

(6) DISPLAY CHECK
Check program for FL display. The display status will change as follows with submenu operation. The signal is processed with EFFECT OFF. For switching between internal and external sync commanded by the microprocessor, the forced external sync is selected. (Remote control code 7A-56 : DSP/16)

All segments are turned on and off to detect defects in the FL driver (IC102) and FL display segments. Then the FL driver operation is checked by the dimmer control. Finally, all segments are turned on and off alternately (in lattice form), to check for a short-circuit between adjacent segments.

(7) MANUAL TEST
The noise generator built into the DSP outputs test noise from the channel specified by the submenu.

7.TEST ALL

7.TEST MAIN L

7.TEST CENTER

7.TEST MAIN R

7.TEST REAR R

7.TEST REAR L

7.TEST LFE

(8) FACTORY PRESET
The initialization of the backup RAM, which contains DSP sound field parameters, set menu contents, etc. is reserved or inhibited. The signal is processed with EFFECT OFF.

8. PRESET INHI

Inhibits initialization of the RAM. Specify this option to protect user set values.

8. PRESET RSRVD

Reserve to initialize the backup RAM. (The RAM is actually initialized when power is turned on next time.) Specify this option at the factory or to reset the RAM. For each initial value, see page 20.

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.)
Preset group A B C D E P1 P2 P3 P4 P5 P6 P7 P8

16

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

(9) AD DATA CHECK
The A/D conversion values of the main CPU which detects key scan, protection, etc. are displayed in % (100%: 5V). All signal processing before this menu is executed will be held. The keys on the main unit cannot be operated to detect the values of all keys in the K0/K1 and K2/RE pages. Turning the rotary encoder (input selector on the main unit) will switch the submenu. AD CHECK : FAN control based on detected temperature With the voltage value detected from the temperature detection circuit read as a temperature data by the A/D function of the microprocessor, the FAN speed is controlled in 3 levels based on that data. 0 0 FAN 3.0V FAN 3.7V FAN 5.0V

9.AD CHECK :000
bit 2 0 1 0

When there is drive history record : 1 * Selecting "RESERVED" from the Diag menu No.8 and using factory presetting will clear the history.

9.K0:100K1:100

Press the "PROGRAM w" key. K0/K1: Panel key on main unit See Table 1. Tuning the rotary encoder. K2: Panel key on main unit RE: REC OUT (value : 0) Tuning the rotary encoder. SI: Tuner signal level TP: Heat sink temperature (normal value: 6-40) Press the "PROGRAM w" key. DC: DC protection value (normal value: 1-13) PS: Power voltage protection value (normal value: 18-29)

9.K2:100RE:

0

9.SI: OTP: 28

9.DC: 7PS: 23

AD Value K0 K1 K2

0 TUNING UP A/B/C/D/E EXT. DECODER

10 TUNING DOWN 1 INPUT MODE

20 FM/AM 2 EFFECT

30 TUNING MODE 3 PROG >

40 EDIT 4 PROG <

AD Value K0 K1 K2

50 MEMORY 5 +

60 EON 6 ­

70 RDS MODE/FREQ 7 SET MENU

80 PTY START 8 LEVEL

90 PTY MODE × ×

Caution 1. If K0/K1/K2 are more than ±4% from the reference values, normal operation will not be executed. 2. If TP is 5% or less, the protection function will operate and power will turn off. If it is 40% or more, it is possible that there is an abnormality in the thermal detection system. 3. If DC and PS are outside the normal values, the protection function will operate and power will turn off.

17

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

(10) STATUS FROM DSP MICOM
The status data from the DSP microprocessor is sequentially displayed in a hexadecimal number. All signal processing before this menu is executed will be held.
10.CPU/1 02 10 10.VER/1 5A 30 10.BIO/1 00 00 10.BI2/1 00 00 10.BI4/1 00 00 10.CPU/2 6A 00 10.VER/2 36 42 10.BI0/2 00 00 10.BI2/2 00 00 10.BI4/2 00 00 10.CHS/1 00 01 10.SUM/1 44 39 10.BI1/1 00 00 10.BI3/1 00 00 10.BI5/1 00 00 10.CHS/2 00 00 10.SUM/2 43 33 10.BI1/2 00 00 10.BI3/2 00 00 10.BI5/2 00 00

[CPU/1]


bit7 bit6 bit5 bit4 MUTE Request fs 000B:analog 001B:32k 010B:44.1k 011B:48kHz others:not defined bit3 bit2 bit1 bit0 acmod 0000B:1+1 0001B:1/0 0010B:2/0 0011B:3/0 0100B:2/1 0101B:3/1 0110B:2/2 0111B:3/2 1000B:7.1

10.CPU/1 00 00
High Byte Low Byte Indicate bit

0 0
3 2 1 0 bit

7 6 5 4

acmod: If it is 1000B or more with DTS 7.1 signal, the DSP block will be muted.
bit7 bit6 bit5 bit4 AC3 DECODE OK DTS DECODE OK Red DTS record (flashes ad lights) 1 in audio models other than PCM linear audio bit3 bit2 bit1 bit0 DEM MUTE (without RF signal) IEC958 digital format error IEC958 commercial-use device bit IEC958 digital data bit (DAT, CDROM, etc.)

Indicate 3

[Note] IEC958: Standard to identify the PCM bit stream signal. Digital format error refers to a digital signal with the sampling frequency undefined (neither 44.1k, 32k nor 48k). Since the operation of each device cannot be assured at fs outside specifications, the sub-microprocessor handles this status as the forced analog mode (ignored even if decoding is OK from the detection terminal level), and selects the signal from the analog input terminal. Since the sub-microprocessor transmits 000B (analog) for STATUS#0 bits 4-6 to the main microprocessor, the main microprocessor visually operates in the same way as with digital unlocking. [CPU/2]
bit7 bit6 bit5 bit4 AC3 KARAOKE DIR2 LOCKN DIR2 ERR AC3D MUTE bit3 bit2 bit1 bit0 On-board write mode The number of digital inputs is 2 DSP is AC3D2 (DTS present) RF DEM present "0" "1"

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

7 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1

2 6 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1

1 5 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1

0 4 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1

Always "00" [CHS/1/2] IEC958 channel status bits 00-31 available from DIR2 bits 00-07 bits 08-15 bits 16-23 bits 24-31 [VER/1/2] 4-byte ASCII code of sub CPU version data [SUM1/2] Displays the check sum of sub microprocessor program area with ASCII 4 bytes in a hexadecimal number. [BI0/1/2] Displays the bit stream information contained in Dolby Digital (AC-3)/DTS signal from the first byte. [BI1-5/1/2] Displays the bit stream information contained in Dolby Digital (AC-3) signal from the fifth byte.

18

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

(11) CPU VERSION/CHECK SUM/PORT INFO/EXIT DIAG
The check sum, version and port setting of main CPU/DSP CPU are displayed. The signal is EFFECT OFF. Operating the submenu will finish self-diagnosis, and ordinary operation mode will be restored. The suffix letter ("A" in the following) of version indication is for compatibility of communications between the main and DSP microprocessors. Combining microprocessors with different suffixes will make normal operation impossible.

11.M-SM:824E A

Main microprocessor check sum Software version Check sum

11.S-SM:CB96 C

DSP microprocessor check sum Software version Check sum

11.M-VER:A01B

Main microprocessor version

11.S-VER:C05B

DSP microprocessor version

One suffix letter is for compatibility of communications between the main and DSP microprocessors. * Use microprocessors with the same suffix.

11.P:00000000

bit

7 1

6 1

5 0

4 0

3 0

2 0

1 0

0 0 Frequency switch for R model (g1) ZONE2 present/absent (1/0) Tuner Mode 0 (g2) Tuner Mode 1 (g2) VIDEO format: PAL/NTSC (1/0) RDS present/absent (1/0) Model Type 0 (g3) Model Type 1 (g3)

EXIT

g1
Port 51 Low(0) Hi(1) AM 530­1710kHz/10kHz 531­1611kHz/9kHz FM 87.5­108MHz/100kHz 87.5­108.0MHz/50kHz

g2
Tuner Mode 1 Tuner Mode 0 *0 *1 *2 *3 0 0 *0 0 1 *1 1 0 *2 1 1 *3

AM: 531­1611kHz/9kHz FM: 76.0­90.0MHz/100kHz (J model) AM: 530­1710kHz/10kHz FM: 87.5­107.9MHz/200kHz (U, C models) AM: 531­1611kHz/9kHz FM: 87.5­108.0MHz/50kHz (A, L models) R model: Tuner Frequency is selected by Port 51 and Model Type.

g3
Model Type 1 Model Type 0 1 1 V795a

19

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

s FACTORY PRESET
All of the system settings are initially set from the factory as follows.

q INPUT (VIDEO) q EFFECT LEVEL
EFFECT CHANNEL CENTER RIGHT SURROUND LEFT SURROUND SUB WOOFER

DVD/LD (DVD/LD)

PRESET VALUE 0dB 0dB 0dB 0dB

q DSP PROGRAM
INPUT PHONO CD TUNER TAPE MONITOR DVD/LD TV/DBS VCR VIDEO AUX DSP RROGRAM CONCERT HALL ROCK CONCERT DISCO JAZZ CLUB MOVIE THEATER 1 70mm/DGTL/DTS Sci-Fi TV/SPORTS ENHANCED PRO LOGIC

q SET MENU
No. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. SET MENU CENTER SPEAKER REAR SPEAKER MAIN SPEAKER LFE/BASS OUT MAIN LEVEL DOLBY DGTL SET LFE LEVEL DOLBY DGTL SET DYNAMIC RANGE DTS SET LFE LEVEL CENTER DELAY PARAMETER INI MEMORY GUARD TV/DBS INPUT DIMMER PRESET VALUE LRG LARGE LARGE SW Normal 0 dB MAX 0 dB 0 ms ­­­ OFF AUTO 0

q PRESET STATIONS
STATION PAGE NO. 1 2 3 A/C/E 4 5 6 7 8 FM FACTORY PRESET DATA (MHz) U, C R, L, G, A, B J 87.5 87.50 76.0 90.1 90.10 83.0 95.1 95.10 84.0 98.1 98.10 86.0 107.9 108.00 90.0 88.1 88.10 78.0 106.1 106.10 88.0 107.9 108.00 82.1 STATION PAGE NO. 1 2 3 B/D 4 5 6 7 8 AM FACTORY PRESET DATA (kHz) U, C, R R, L, G, A, B, J 630 630 1080 1080 1440 1440 530 531 1710 1611 900 900 1350 1350 1400 1404

20

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

s AMP ADJUSTMENTS
q Confirmation of Idling Current 1) No signal applied. 2) Non-loaded condition. 3) Aging is not neccessary.
Item MAIN L MAIN R CENTER REAR L REAR R Test Point CB529 CB530 CB531 R761 R813 If the measured voltage exceeds1.6mV, cut the lead wire of R557(L ch), R565(R ch), R572(C ch), 0.05mV~1.5mV R744(RL ch) or R751(RR ch) and then check again if each measured value satisfies the rating.
R557 (L ch) R565 (R ch) R572 (C ch) R744 (RL ch) R751 (RR ch)

Rating (DC)

Note
Cut OFF

* Confirm that the voltage at the test points is 7.5mV ~ 12mV after 60 minutes.
Note) · If R557(L ch), R565(R ch), R572(C ch), R744(RL ch) or R751(RR ch) have already been cut off and idling current does not flow, reconnect R557(820), R565(820), R572(820), R744(820) or R751(820). · Q514, Q516, Q518, Q707 and Q710 are transistors for temperature correction. Apply silicone grease to the contact surface with the heat sink.

CB530 R751 R565 R813

R744

R761

R572

R557

CB531 CB529

MAIN(2)

MAIN(1)

0.05mV ~ 1.5mV (DC)

0.05mV ~ 1.5mV (DC)

R761 (RL) R813 (RR)

CB529 (L ch) CB530 (R ch) CB531 (C ch)

21

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

s TUNER ADJUSTMENTS
q Measuring Instruments
FM signal generator (FM SG) Stereo signal generator (SSG) AM signal generator (AM SG) Distortion meter (DIST. M) AC voltmeter (ACVM) DC voltmeter (DCVM) Oscilloscope Low pass filter (YLF-15, fc=15kHz) Oscillator

q Dummy antenna
FM dummy antenna
E1 FM SG (50) 10 45 E2 RECEIVER (75)

E2 (dB) = E1 (dB) -6 (dB)

FM dummy antenna
E1 FM SG (75) E2 RECEIVER (75)

E2 (dB) = E1 (dB)

AM dummy antenna
10K AM ANT AM SG (50) 50

60

GND

q Test point
AM ANT FM ANT GND

MONAURAL DISTORTION ADJ. (TE1 side)
T1

AM SENSITIVITY ADJ.

PK2
IC1

T2 16 VR1 TP2

DISCRIMINATOR BALANCE ADJ. (IC1 side)

TP1 T3 VR2

FRONT END

IFT IFT

T4 CB4

IC2

SEPARATION ADJ.

IC3

T5

U,C,R models SIGNAL METER ADJ.

A,L,T,B,G models

22

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

FM Adjustment
q Before Adjustment
1) For dB, 1µV=0dBµ
Example : 60dBµ=1mV

2) 100% modulation means that the frequency deviation is ± 75kHz.

3) Install the Matching Transformer and connect FM SG. 4) Set each switch to the following position unless otherwise specified.
INPUT SELECTOR .................. TUNER TUNING MODE ....................... AUTO

q Connection diagram (Measuring instruments)
1) Discriminator balance adjustment
FM dummy antenna FM ANT GND TP1 TUNER P. C. B. TP2

3) Stereo distortion adjustment/separation adjustment
FM ANT L R REC OUT YLF-15 (LPF) Oscilloscope

FM SG

R25

DCVM

FM SG

FM dummy antenna

TUNER GND P. C.. B.

ACVM

Oscillator

SSG

DIST. M

2) Monaural distortion adjustment
FM dummy antenna FM ANT GND L TUNER P. C. B. R REC OUT DIST. M Oscillator Oscilloscope

4) Sensitivity Verification
FM dummy antenna FM ANT GND L Oscilloscope TUNER P. C. B. R REC OUT ACVM

FM SG

FM SG

DIST. M

Step 1

Adjustment item Rough adjustment of discriminator balance

Signal (ANT IN) FM ANT (75) 98.1MHz ** 70dBµ MONO 100Hz 100% modulation Same as Step 1.

Reception frequency 98.1MHz * (A-4)

Adjustment point T1 (IC1 side core)

Test point Both ends of R25 (Between TP1 and TP2)

Rating DC 0V±100mV

2

Rough adjustment of monaural distortion Fine adjustment of discriminator balance Fine adjustment of monaural distortion Verification of discriminator balance

98.1MHz * (A-4) 98.1MHz * (A-4) 98.1MHz * (A-4) 98.1MHz * (A-4)

T1 (TE1 side core) T1 (IC1 side core) T1 (TE1 side core) T1 (IC1 side core)

REC OUT L, R

Minimize the distortion. DC 0V±50mV

3

Same as Step 1.

Both ends of R25 (Between TP1 and TP2) REC OUT L, R

4

Same as Step 1.

5

Same as Step 1.

Both ends of R25 (Between TP1 and TP2)

Minimize the distortion (to 43dB or less). DC 0V±50mV

* : Execution of FACTORY PRESET (Refer to page 16.) will facilitate setting reception frequency for adjustment. ** Must be 98.1MHz ± 5kHz

23

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170 See page 22 for TP locations & adjustment points.
Step 6 Adjustment item Adjustment of front end IFT Signal (ANT IN) FM ANT (75) 98.1MHz 70dBµ MONO 1kHz, 100% modulation FM ANT (75) 98.1MHz 70dBµ MONO 1kHz, 100% modulation FM ANT (75) 98.1MHz 70dBµ Stereo L or R 1kHz, 100% modulation FM ANT (75) 88.1MHz 98.1MHz 106.1MHz MONO 1kHz Modulation off Reception frequency 98.1MHz * (A-4) Adjusted point Front end IFT Test point Pin 16 of IC1 Rating Adjust so that the DC voltage is maximum. CAUTION : Over-adjustment of the IFT core will reduce the sensitivity. Maximum ±90° 98.1MHz * (A-4) REC OUT L, R 0.1%

7

Verification of monaural distortion

8

Verification of stereo distortion

9

Verification of sensitivity

98.1MHz * (A-4) * Tuning mode should be AUTO. 88.1MHz * (A-6) 98.1MHz * (A-4) 106.1MHz * (A-7)

REC OUT L, R

0.2% · STEREO indicator should light.

ANT (75)

1) Set the tuning mode to MAN'L MONO. (Muting OFF) 2) S/N should be 30dB at each frequency of 88.1MHz, 98.1MHz, and 106.1MHz. 3) Check to ensure that the voltage at the ANT terminal is 5µV or less. (A, L, B, G only : 7µV or less)

10

Adjustment of Separation

11

Adjustment of Signal meter

FM ANT (75) 98.1MHz 70dBµ Stereo L or R 1kHz, 100% modulation FM ANT (75) 98.1MHz 45dBµ MONO 1kHz 30% modulation ­10dBµ or less FM ANT (75) 98.1MHz 26dBµ Stereo L or R 1kHz, 30% modulation

98.1MHz * (A-4)

VR2

REC OUT L, R

With SSG output at L or R, the signal leakage level at the other channel should be minimized. 48dB or more

98.1MHz * (A-4)

VR1

Adjust so that all segments light.

12

Verification of auto tuning

98.1MHz * (A-4)

Check to ensure that all segments are OFF. · Automatic reception should be available when the tuning key is moved UP and DOWN. · The stereo indicator should light. · Audio muting should be applied during tuning.

* : Execution of FACTORY PRESET (Refer to page 16.) will facilitate setting reception frequency for adjustment.

24

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

AM Adjustment (This should be done after FM adjustment.) q Connection Diagram (Measuring instruments)
1) Adjustment of sensitivity
AM loop antenna

AM ANT AM SG AM Dummy Antenna GND TUNER P. C. B.

L ACVM R REC OUT DIST. M

Oscilloscope

See page 22 for TP locations & adjustment points.
Step 1 Adjustment item Adjustment of sensitivity Signal (ANT IN) AM ANT 630kHz 50dBµ 1kHz 30% modulation AM ANT 630kHz 1080kHz 1440kHz 30% modulation AM ANT 1080kHz 90dBµ MONO 1kHz 30% modulation ­10dBµ or less AM ANT 60dBµ Reception frequency 630kHz * (B-1) Adjustment point T2 Test point REC OUT Rating Audio output should be maximized. Repeat steps 1 and 2.

2

Verification of sensitivity

3

Verification of signal meter

630kHz * (B-1) 1080kHz * (B-2) 1440kHz * (B-3) 1080kHz * (B-2)

REC OUT

Check to ensure that the voltage at the ANT terminal is 54dBµ or less.

All S-meters should light.

All S-meters should turn off. Auto reception should be available when the tuning key is moved UP and DOWN. Audio must be muted during search.

4

Verification of auto tuning

* : Execution of FACTORY PRESET (Refer to page 16.) will facilitate setting reception frequency for adjustment.

25

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

s DISPLAY DATA (V2573800)
q V101 : 16-BT-60GK

C

1

PATTERN AREA

q

PIN CONNECTION
Pin No. Connection Pin No. Connection Pin No. Connection Pin No. Connection Pin No. Connection 82
F2

81
F2

80
NP

79
NP

78
NC

77
NC

76
P37

75
P36

74
P35

73
P34

72
P33

71
IC

70
NP

69
Fd

68
Fd

67
NP

66
IC

65
P32

64
P31

63
P30

62
P29

61
P28

60
P27

59
P26

58
P25

57
P24

56
P23

55
P22

54
P21

53
P20

52
P19

51
P18

50
P17

49
P16

48
P15

47
P14

46
P13

45
P12

44
P11

43
P10

42
P9

41
P8

40
P7

39
P6

38
P5

37
P4

36
P3

35
P2

34
P1

33
16G

32
15G

31
14G

30
13G

29
12G

28
11G

27
10G

26
9G

25
8G

24
7G

23
6G

22
5G

21
4G

20
3G

19
2G

18
1G

17
NC

16
NC

15
NC

14
NC

13
NC

12
NC

11
NC

10
NC

9
NC

8
NC

7
NC

6
NC

5
NC

4
NP

3
NP

2
F1

1
F1
5) 1G~16G ..... Grid 6) IC ................ Internal connection

Note 1) F1, F2 ........ Filament 2) NP .............. No Pin q

3) NC ............. No Connection 4) P1~P37 ...... Datum Line

GRID ASSIGMENT

q

ANODE CONNECTION

26

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170

s IC DATA
IC3 : YM3436DK DIR ( Digital Format Interface Receiver )
36 EXTW 37 DDIN

35 CSM

42 CDO

41 EMP

43 CCK

40 ERR

44 CLD

34 FS0

39 VDD

VSSA VDDA PCO CTLP CTLN TC LR LOCKN P256 X0

SKSY
11

38 LR

32

29 24 26 28 25 17 38 15 14 13

12 31

22

DAUX HDLT DOUT VFL OPT SYNC MCC WC MCB SKSY

1 2 3 4 5 6 7 8 9 11

33 FS1 32 KM0 31 KM2 30 TSTN 29 VSSa 28 CTLP 27 (N.C.) 26 PCO 25 CTLN 24 VDDa 23 RSIN
SERIAL INTERFACE

RS IN
23

KMO

X1 KM2

KM1

EXTW

36

10

SEL

PLL

SYSTEM CLOCK TIMING GENERATOR

9 8 7 6 5

MCA MCB WC MCC SYNC OPT

D DIN ERR CSM EMP FS1 FS0

37 40 35 41 33 34

EIAJ (AES/EBU) DIGITAL AUDIO INTERFACE DECODER

DATA CLOCK CONTROLLER

4

VFL D OUT DOM1 DOM0

MCA 10

S/P

BUFFER P/S

3 20 21

XI 12

XO 13

P256 14

LOCKN 15

VSS 16

TC 17

DIM1 18

DIM0 19

DOM1 20

DOM0 21

KM1 22

44

43

42

1 18 19

2

16 39 30

DAUX DIM1 DIM0

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

Pin Name DAUX HDLT DOUT VFL OPT SYNC MCC WC MCB MCA SKSY XI XO P256 LOCKN VSS TC DIM1 DIM0 DOM1 DOM0 KM1 RSTN VDDa CTLN

I/O I O O O O O O O O O I I O O O O I I I I I I I

Function Auxiliary input for audio data Asynchronous buffer operation flag Audio data output Parity flag output Fs x 1 Synchronous output signal for DAC Fs x 1 Synchronous output signal for DSP Fs x 64Bit clock output Fs x 1Word clock output Fs x 128Bit clock output Fs x 256Bit clock output Clock synchronization control input Crystal oscillator connection or external clock input Crystal oscillator connection VCO oscillator clock connection PLL lock flag Logic section power (GND) PLL time constant switching output Data input mode selection Data input mode selection Data output mode selection Data output mode selection Clock mode switching input 1 System reset input VCO section power (+5V) VCO control input N

Pin No. 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44

Pin Name PCO (NC) CTLP VSSa TSTN KM2 KM0 FS1 FS0 CSM EXTW DDIN LR VDD ERR EMP CDO CCK CLD

I/O O I I I I O O I I I O O O O I I

Function PLL phase comparison output VCO control input P VCO section power (GND) Test terminal. Open for normal use Clock mode switching input 2 Clock mode switching input 0 Channel status sampling frequency display output 1 Channel status sampling frequency display output 0 Channel status output method selection External synchronous auxiliary input word clock EIAJ (AES/EBU) data input PLL word clock output Logic section power (+5V) Data error flag output Channel status emphasis control code output 3-wire type microcomputer interface data output 3-wire type microcomputer interface clock output 3-wire type microcomputer interface load input

27

VSS VDD TSTN

CLD

CCK

CDO

HDLT

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170 IC4 : YSS918-F Digital Pro-Logic Decoder

28

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170 IC4 : YSS918-F Digital Pro-Logic Decoder
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 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 Name VDD1 RAMCEN RAMA16 RAMA15 SDIB0 SDIB1 SDIB2 XI XO VSS AVDD SDIB3 TEST TEST OVFB DTSDATA AC3DATA SDOB3 CPO AVSS VDD2 SDOA2 SDOA1 SDOA0 RAMA14 RAMA13 RAMA12 RAMA11 RAMA10 VSS VDD1 OPORT0 OPORT1 OPORT2 OPORT3 OPORT4 OPORT5 OPORT6 OPORT7 VSS VDD2 RAMA9 RAMA8 RAMA7 SDOB2 SDOB1 SDOB0 SDBCK1 SDWCK1 VSS VDD2 I/O O O O Itp Itp Itp Ic O Function +5V terminal (for terminal section) Chip enable terminal for external SRAM Address terminal 16 for external SRAM Address terminal 15 for external SRAM PCM input terminal 0 to Sub DSP PCM input terminal 1 to Sub DSP PCM input terminal 2 to Sub DSP Crystal oscillator connecting terminal (12.288MHz) Crystal oscillator connecting terminal Ground terminal (for terminal section) +3.3V terminal (for PLL circuit) PCM input terminal 3 to Sub DSP Test terminal (normally unconnected) Test terminal (normally unconnected) Sub DSP overflow detect terminal DTS data detect terminal AC-3 data detect terminal PCM output terminal for Sub DSP PLL output terminal, connected to external analog filter Ground terminal (for PLL circuit) +3.3V terminal (for inner circuit) PCM output terminal (AC-3/DTS : C/LFE output, Pro Logic : C/S output) PCM output terminal (AC-3/DTS : LS/RS output, Pro Logic : Lt/Rt output) PCM output terminal (AC-3/DTS/Pro Logic : L/R output) Address terminal 14 for external SRAM Address terminal 13 for external SRAM Address terminal 12 for external SRAM Address terminal 11 for external SRAM Address terminal 10 for external SRAM Ground terminal (for inner circuit) +5V terminal (for terminal section) General purpose output terminal General purpose output terminal General purpose output terminal General purpose output terminal General purpose output terminal General purpose output terminal General purpose output terminal General purpose output terminal Ground terminal (for inner circuit) +3.3V terminal (for inner circuit) Address terminal 9 for external SRAM Address terminal 8 for external SRAM Address terminal 7 for external SRAM PCM output terminal for Sub DSP PCM output terminal for Sub DSP PCM output terminal for Sub DSP Bit clock input terminal for SDOA/SDIB/SDOB signal Word clock input terminal for SDOA/SDIB/SDOB signal Ground terminal (for terminal section) +3.3V terminal (for inner circuit)

Itp

O O O O A

O O O O O O O O

O O O O O O O O

O O O O O O Itp Itp

29

RX-V795a / RDS HTR-5170

RX-V795a/RDS/HTR-5170 IC4 : YSS918-F Digital Pro-Logic Decoder
No. 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 Ic Is O A : : : : Name NONPCM CRC MUTE KARAOKE SURENC /SDBCK0 RAMA6 RAMA5 VSS RAMA4 /IC TEST RAMA3 /CSB /CS SO SI SCK RAMA2 VDD1 RAMD0 RAMD1 RAMD2 RAMD3 RAMD4 RAMD5 RAMD6 RAMD7 VSS VDD2 SDWCK0 SDBCK0 SDIA0 SDIA1 RAMA1 RAMA0 RAMWEN RAMOEN VSS VDD2 IPORT7 IPORT6 IPORT5 IPORT4 IPORT3 IPORT2 IPORT1 IPORT0 VSS I/O O O O O O O O O Function

non-PCM data detect terminal AC-3 CRC error detect terminal Auto mute detect terminal AC-3 karaoke data detect terminal AC-3