Yamaha RXV-795-A Service manual
AV RECEIVER
RX-V795a
HTR-5170
/
RDS
RX-V795a
HTR-5170
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
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
IMPORTANT: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the
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.
accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this
buss).
unit.
/
RDS
SERVICE MANUAL
IMPORTANT NOTICE
■ 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
100691
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
YAMAHA CORPORATION
P.O.Box1,Hamamatsu,Japan
Printed in Japan
RDS
/
RX-V795a/RDS/HTR-5170
HTR-5170
■ TO SERVICE PERSONNEL
RX-V795a
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 proper ly insulated from supply circuits.
● Meter impedance should be equivalent to 1500 ohm shunted
by 0.15 µF.
● Leakage current must not exceed 0.5mA.
● Be sure to test for leakage with the AC plug in both polarities.
"CAUTION"
"F821 : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,REPLACE ONLY WITH SAME TYPE 2.5A,250V FUSE
(G model)"
"F822 : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,REPLACE ONLY WITH SAME TYPE 4.0A,250V FUSE
AV
(A, B, G, L models)"
"F823 : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,REPLACE ONLY WITH SAME TYPE 8.0A,125V FUSE
(U, C, R, T models)"
"F851 : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,REPLACE ONLY WITH SAME TYPE 4.0A,250V FUSE
(R, T models)"
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 betw een solder and your skin! When soldering, do not inhale solder fumes or e xpose e yes 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.
■ REMOTE CONTROL PANELS
▼U, C, R, T and L models ▼A, B and G models
1
■ FRONT PANELS
▼RX-V795a
NATURAL SOUND AV RECEIVER R X-V795a
STANDBY/ON
A/B/C/D/E
1
SPEAKERSPHONES
A
ON OFF ON OFF
EXTENSION BYPASS
B
2345
TONE
BASS
II
22
33
44
55
BASS
0
DIGITAL
MEMORY EDIT
MAN’L/AUTO FM
DOLBY
DIGITAL
AUTO/MAN’L MONO
TUNING
MODE
SURROUND
TAPE/MD MON
/EXT. DECODER
DOWN UP
TUNING
SET
LEVEL
MENU
CINEMA DSP
6 7 8 FM/AM INPUT MODE
TREBLE BALANCE
0
II
22
33
44
55
0
II
22
33
44
5L5R
INPUT SELECTOR
EFFECT
PROGRAM
RX-V795a/RDS/HTR-5170
VOLUME
8
I
I2
2
0
8
2
44
0
6
0
∞
VIDEO AUX
S VIDEO VIDEO AUDIOLR
8
2
0
dB
RX-V795a
HTR-5170
/
RDS
▼RX-V795aRDS B, G models
NATURAL SOUND AV RECEIVER R X-V795aRDS
STANDBY/ON
A/B/C/D/E
1
2345
SPEAKERSPHONES
A
ON OFF ON OFF
BASS
EXTENSION BYPASS
B
TONE
22
33
44
▼HTR-5170
STANDBY/ON
NATURAL SOUND AV RECEIVER
A/B/C/D/E
1
SPEAKERSPHONES
A
B
ON OFF ON OFF
HTR-5170
2345
BASS
TONE
EXTENSION BYPASS
22
33
44
BASS
0
II
55
BASS
0
II
55
DIGITAL
MEMORY EDIT
MAN’L/AUTO FM
MEMORY EDIT
MAN’L/AUTO FM
DOLBY
DIGITAL
AUTO/MAN’L MONO
RDS MODE/
DOLBY
DIGITAL
AUTO/MAN’L MONO
SURROUND
TUNING
MODE
FREQ
PTY SEEK
MODE START
DIGITAL
SURROUND
TUNING
MODE
EON
TAPE/MD MON
/EXT. DECODER
DOWN UP
TUNING
SET
LEVEL
MENU
TAPE/MD MON
/EXT. DECODER
DOWN UP
TUNING
LEVEL
MENU
SET
CINEMA DSP
6 7 8 FM/AM
TREBLE BALANCE
0
II
22
33
44
55
0
II
22
33
44
5L5R
CINEMA DSP
6 7 8 FM/AM INPUT MODE
TREBLE BALANCE
0
II
22
33
44
55
0
II
22
33
44
5L5R
INPUT SELECTOR
INPUT MODE
EFFECT
PROGRAM
INPUT SELECTOR
EFFECT
PROGRAM
VOLUME
8
I
I2
2
0
8
2
44
0
6
0
∞
VIDEO AUX
S VIDEO
VIDEO
2
0
8
2
44
0
6
0
∞
VIDEO AUX
S VIDEO
VIDEO
0
dB
R
AUDIO
L
VOLUME
8
I
I2
0
dB
R
AUDIO
L
8
2
8
2
2
RDS
/
RX-V795a/RDS/HTR-5170
HTR-5170
■ REAR PANELS
RX-V795a
▼RX-V795a/HTR-5170 U model
GND
75Ω UNBAL.
FM
ANT
GND
AM
ANT
PHONO CD
▼RX-V795a/HTR-5170 C model
GND
75Ω UNBAL.
FM
ANT
GND
AM
ANT
PHONO CD
DVD/LD
DVD/LD
DVD/LD
CD
COAXIAL
OPTICAL
DIGITAL SIGNAL
S VIDEO
ON SCREEN SELECTOR
OUT
IN
VCR
S VIDEO SIGNAL
IN OUT
341
DVD/LD
CD
COAXIAL
OPTICAL
DIGITAL SIGNAL
S VIDEO
ON SCREEN SELECTOR
OUT
IN
VCR
S VIDEO SIGNAL
IN OUT
341
DVD/LD
TV/DBS
OPTICAL
OUT
IN
VIDEO
REMOTE
CONTROL
MONITOR
DVD/LD
TV/DBS
OUT
(REC)(PLAY)
TAPE/MD TV/DBS
DVD/LD
AUDIO SIGNAL
DVD/LD
TV/DBS
OPTICAL
OUT
IN
VIDEO
REMOTE
CONTROL
MONITOR
DVD/LD
TV/DBS
OUT
(REC)(PLAY)
TAPE/MD TV/DBS
DVD/LD
AUDIO SIGNAL
EXTERNAL DECODER INPUT
MAIN CENTER MAIN
SURROUND
SUB
WOOFER
OUT
MONITOR
IN
VIDEO SIGNAL
VCR
AA
OUT
BB
IN
OUT
VCR
EXTERNAL DECODER INPUT
MAIN CENTER MAIN
SURROUND
SUB
WOOFER
OUT
MONITOR
IN
VIDEO SIGNAL
VCR
AA
OUT
BB
IN
OUT
VCR
OUTPUT
CENTER
WOOFER
OUTPUT
CENTER
WOOFER
SUB
SUB
CENTER
REAR
(SURROUND)
MAIN
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.
CENTER
REAR
(SURROUND)
MAIN
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.
REAR
(SURROUND)
CAUTION
SEE INSTRUCTION
MANUAL FOR CORRECT SETTING.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
REAR
(SURROUND)
CAUTION
SEE INSTRUCTION
MANUAL FOR CORRECT SETTING.
ATTENTION
POUR UN REGLAGE
CORRECT, SE REPORTER AU MANUEL
D’INSTRUCTIONS
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
IMPEDANCE SELECTOR
SET BEFORE POWER ON
:
REAR
6
Ω
MIN. /SPEAKER
:
CENTER
6
Ω
MIN. /SPEAKER
:
MAIN A OR B
4
Ω
MIN. /SPEAKER
:
AB
8
Ω
MIN. /SPEAKER
:
REAR
8
Ω
MIN. /SPEAKER
:
CENTER
8
Ω
MIN. /SPEAKER
:
MAIN A OR B
8
Ω
MIN. /SPEAKER
:
AB
16
Ω
MIN. /SPEAKER
AC OUTLETS
THIS DEVICE COMPLIES WITH PART 15
SWITCHED
OF THE FCC RULES.OPERATION IS
120V 60Hz
SUBJECT TO THE CONDITION THAT
100W MAX. TOTAL
THIS DEVICE DOES NOT CAUSE
HARMFUL INTERFERENCE.
MODEL NO. RX - V795a
120 VOLTS 310 WATTS 60Hz
MADE IN MALAYSIA
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.
IMPEDANCE SELECTOR
SELECTEUR D’IMPEDANCE
SET BEFORE POWER ON
:
REAR
6
Ω
MIN. /SPEAKER
:
CENTER
6
Ω
MIN. /SPEAKER
:
MAIN A OR B
4
Ω
MIN. /SPEAKER
:
AB
8ΩMIN. /SPEAKER
:
REAR
Ω
MIN. /SPEAKER
8
:
CENTER
8
Ω
MIN. /SPEAKER
:
MAIN A OR B
8
Ω
MIN. /SPEAKER
AC OUTLETS
SWITCHED
120V 60Hz
100W MAX. TOTAL
0.8A MAX. TOTAL
MODEL NO. RX - V795a
120 VOLTS
440 VA
MADE IN MALAYSIA
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.
ATTENTION
ELECTRIQUE NE PAS OUVRIR.
WARNING
RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR
MOISTURE.
N
R
T
CORPORATION
V398600 - U - O
ATTENTION
ELECTRIQUE NE PAS OUVRIR.
WARNING
RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR
MOISTURE.
CORPORATION
V398610 - C - O
:
:
TO REDUCE THE
L
:
:
TO REDUCE THE
350 WATTS
RISQUE DE CHOC
RISQUE DE CHOC
60Hz
▼RX-V795a/HTR-5170 R, T models
FM
ANT
GND
AM
ANT
50kHz 9kHz
100kHz 10kHz
FM
FREQUENCY
GND
75Ω UNBAL.
AM
STEP
OPTICAL
PAL
DVD/LD DVD/LD TV/DBS
S VIDEO SIGNAL VIDEO SIGNAL
PHONO CD
CD
DVD/LD
COAXIAL
DIGITAL SIGNAL
NTSC
S VIDEO VIDEO
ON SCREEN SELECTOR
OUT
IN
VCR
341
MONITOR
EXTERNAL DECOODER INPUT OUTPUT
MAIN CENTER MAIN CENTER
DVD/LD TV/DBS
OPTICAL
OUT
(REC)(PLAY)
DVD/LDTAPE/MD TV/DBS
AUDIO SIGNAL
▼RX-V795a/HTR-5170 A model
GND
75Ω UNBAL.
FM
ANT
GND
AM
ANT
PHONO CD
DVD/LD
DVD/LD
CD
COAXIAL
OPTICAL
DIGITAL SIGNAL
S VIDEO
VIDEO
ON SCREEN SELECTOR
OUT
IN
VCR
S VIDEO SIGNAL
IN OUT
341
MONITOR
TAPE/MD TV/DBS
EXTERNAL DECODER INPUT
MAIN CENTER MAIN
DVD/LD
TV/DBS
OPTICAL
OUT
IN
REMOTE
CONTROL
DVD/LD
TV/DBS
OUT
(REC)(PLAY)
DVD/LD
AUDIO SIGNAL
SUB
WOOFER
IN
IN
SUB
WOOFER
IN
VIDEO SIGNAL
IN
VCR
VCR
VCR
VCR
SURROUND
OUT
OUTIN OUT
SURROUND
OUT
OUT
REAR
CENTER
REAR
(SURROUND)
SUB
WOOFER
MAIN
MONITOR
AA
OUT
(SURROUND)
CAUTION
MANUAl FOR CORRECT SETTING.
BB
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.
REAR
CENTER
OUTPUT
CENTER
REAR
(SURROUND)
SUB
WOOFER
MAIN
MONITOR
AA
OUT
(SURROUND)
CAUTION
MANUAL FOR CORRECT SETTING.
BB
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.
SEE INSTRUCTION
SEE INSTRUCTION
MIN. /SPEAKER
MIN. /SPEAKER
MIN. /SPEAKER
MIN. /SPEAKER
MIN. /SPEAKER
MIN. /SPEAKER
MIN. /SPEAKER
MIN. /SPEAKER
MODEL NO. RX - V795a
110/120/220/240 VOLTS
350 WATTS 50/60Hz
CORPORATION
V398620 - R, T - O
Ω
MIN. /SPEAKER
Ω
MIN. /SPEAKER
Ω
MIN. /SPEAKER
Ω
MIN. /SPEAKER
Ω
MIN. /SPEAKER
Ω
MIN. /SPEAKER
Ω
MIN. /SPEAKER
Ω
MIN. /SPEAKER
MODEL NO. RX - V795a
240 VOLTS
50Hz
MADE IN MALAYSIA
V398630 - A - O
VOLTAGE SELECTORIMPEDANCE SELECTOR
CORPORATION
SET BEFORE POWER ON
:
REAR
6
Ω
:
CENTER
6
Ω
:
MAIN A OR B
Ω
4
:
AB
8
Ω
:
REAR
8
Ω
:
CENTER
8
Ω
:
MAIN A OR B
8
Ω
:
AB
16
Ω
AC OUTLETS
SWITCHED
100W MAX.TOTAL
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.
IMPEDANCE SELECTOR
SET BEFORE POWER ON
:
REAR
6
:
CENTER
6
:
MAIN A OR B
4
:
8
AB
:
REAR
8
:
CENTER
8
:
MAIN A OR B
8
:
AB
16
AC OUTLET
100W MAX.
SWITCHED
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.
N89
MAINS
350 WATTS
3
▼RX-V795aRDS B model
GND
75Ω UNBAL.
FM
ANT
GND
AM
ANT
PHONO CD
DVD/LD
DVD/LD
CD
COAXIAL
OPTICAL
DIGITAL SIGNAL
S VIDEO
ON SCREEN SELECTOR
OUT
IN
VCR
S VIDEO SIGNAL
IN OUT
341
VIDEO
TAPE/MD TV/DBS
▼RX-V795aRDS G model
GND
75Ω UNBAL.
FM
ANT
GND
AM
ANT
PHONO CD
DVD/LD
DVD/LD
CD
COAXIAL
OPTICAL
DIGITAL SIGNAL
S VIDEO
ON SCREEN SELECTOR
OUT
IN
VCR
S VIDEO SIGNAL
IN OUT
341
VIDEO
TAPE/MD TV/DBS
EXTERNAL DECODER INPUT
MAIN CENTER MAIN
DVD/LD
TV/DBS
OPTICAL
MONITOR
DVD/LD
TV/DBS
OUT
AUDIO SIGNAL
DVD/LD
MONITOR
OUT
AUDIO SIGNAL
VIDEO SIGNAL
(REC)(PLAY)
DVD/LD
EXTERNAL DECODER INPUT
MAIN CENTER MAIN
TV/DBS
OPTICAL
DVD/LD
TV/DBS
VIDEO SIGNAL
(REC)(PLAY)
DVD/LD
WOOFER
WOOFER
RX-V795a
HTR-5170
RX-V795a/RDS/HTR-5170
/
RDS
REAR
CENTER
OUTPUT
A
CENTER
SUB
WOOFER
REAR
(SURROUND)
MAIN
SURROUND
SUB
OUT
MONITOR
IN
VCR
OUT
(SURROUND)
A
CAUTION
MANUAL FOR CORRECT SETTING.
SEE INSTRUCTION
BB
IN
OUT
VCR
SURROUND
SUB
OUT
MONITOR
IN
VCR
A
OUT
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.
REAR
(SURROUND)
MAIN
CENTER
OUTPUT
CENTER
WOOFER
SUB
REAR
(SURROUND)
A
CAUTION
MANUAL FOR CORRECT SETTING.
SEE INSTRUCTION
BB
IN
OUT
VCR
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.
IMPEDANCE SELECTOR
SET BEFORE POWER ON
:
REAR
6
Ω
MIN. /SPEAKER
:
CENTER
6
Ω
MIN. /SPEAKER
:
MAIN A OR B
4
Ω
MIN. /SPEAKER
:
8
Ω
MIN. /SPEAKER
AB
:
REAR
8
Ω
MIN. /SPEAKER
:
CENTER
8
Ω
MIN. /SPEAKER
:
MAIN A OR B
8
Ω
MIN. /SPEAKER
:
AB
16
Ω
MIN. /SPEAKER
AC OUTLET
SWITCHED
100W MAX.
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.
AC OUTLETS
100W MAX. TOTAL
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.
IMPEDANCE SELECTOR
SET BEFORE POWER ON
:
REAR
6
:
CENTER
6
:
MAIN A OR B
4
:
8
AB
:
REAR
8
:
CENTER
8
:
MAIN A OR B
8
:
AB
16
SWITCHED
MODEL NO. RX - V795aRDS
230 VOLTS
50Hz
MADE IN MALAYSIA
V398650 - B - O
Ω
MIN. /SPEAKER
Ω
MIN. /SPEAKER
Ω
MIN. /SPEAKER
Ω
MIN. /SPEAKER
Ω
MIN. /SPEAKER
Ω
MIN. /SPEAKER
Ω
MIN. /SPEAKER
Ω
MIN. /SPEAKER
MODEL NO. RX - V795aRDS
230 VOLTS
50Hz
MADE IN MALAYSIA
V398660 - G - O
350 WATTS
CORPORATION
350 WATTS
CORPORATION
MAINS
MAINS
▼RX-V795a L model
GND
75Ω UNBAL.
FM
ANT
GND
AM
ANT
PHONO CD
DVD/LD
DVD/LD
CD
COAXIAL
OPTICAL
DIGITAL SIGNAL
S VIDEO
ON SCREEN SELECTOR
OUT
IN
VCR
S VIDEO SIGNAL
IN OUT
341
VIDEO
MONITOR
TAPE/MD TV/DBS
EXTERNAL DECODER INPUT
MAIN CENTER MAIN
DVD/LD
TV/DBS
OPTICAL
SUB
WOOFER
DVD/LD
TV/DBS
OUT
AUDIO SIGNAL
VIDEO SIGNAL
(REC)(PLAY)
DVD/LD
SURROUND
OUT
MONITOR
IN
VCR
OUT
IN
OUT
VCR
WARNING
Do not change the IMPEDANCE SELECTOR switch
setting while the power to this unit is on, otherwise
this unit may be damaged.
REAR
CENTER
A
OUTPUT
CENTER
WOOFER
REAR
(SURROUND)
SUB
MAIN
(SURROUND)
A
CAUTION
SEE INSTRUCTION
MANUAL FOR CORRECT SETTING.
IMPEDANCE SELECTOR
SET BEFORE POWER ON
REAR
CENTER
MAIN A OR B
REAR
CENTER
MAIN A OR B
AC OUTLETS
SWITCHED
100W MAX. TOTAL
AB
AB
BB
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.
REAR
(SURROUND)
CAUTION
SEE INSTRUCTION
MANUAL FOR CORRECT SETTING.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
IES LICENSING
DOUBLE-D SYMBOL
RPORATION.
O
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.
IMPEDANCE SELECTOR
SET BEFORE POWER ON
:
REAR
6
Ω
MIN. /SPEAKER
:
CENTER
6
Ω
MIN. /SPEAKER
:
MAIN A OR B
Ω
MIN. /SPEAKER
4
:
AB
8
Ω
MIN. /SPEAKER
:
REAR
8
Ω
MIN. /SPEAKER
:
CENTER
8
Ω
MIN. /SPEAKER
:
MAIN A OR B
8
Ω
MIN. /SPEAKER
:
AB
16
Ω
MIN. /SPEAKER
AC OUTLETS
THIS DEVICE COMPLIES WITH PART 15
SWITCHED
OF THE FCC RULES.OPERATION IS
120V 60Hz
SUBJECT TO THE CONDITION THAT
100W MAX. TOTAL
THIS DEVICE DOES NOT CAUSE
HARMFUL INTERFERENCE.
MODEL NO. RX - V795a
120 VOLTS 310 WATTS 60Hz
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.
:
6
Ω
MIN. /SPEAKER
:
6
Ω
MIN. /SPEAKER
:
Ω
MIN. /SPEAKER
4
:
8
Ω
MIN. /SPEAKER
:
8
Ω
MIN. /SPEAKER
:
8
Ω
MIN. /SPEAKER
:
8
Ω
MIN. /SPEAKER
:
16
Ω
MIN. /SPEAKER
MODEL NO. RX - V795a
230 VOLTS
50Hz
MADE IN MALAYSIA
V398640 - L - O
:
ATTENTION
RISQUE DE CHOC
ELECTRIQUE NE PAS OUVRIR.
:
WARNING
TO REDUCE THE
RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR
MOISTURE.
N
L
R
T
CORPORATION
MAINS
350 WATTS
CORPORATION
IMPEDANCE
SELECTOR
4
RDS
/
RX-V795a/RDS/HTR-5170
HTR-5170
■ SPECIFICATIONS
RX-V795a
■ AUDIO SECTION
Minimum RMS Output Power per Channel
RX-V795a
MAIN, 20Hz to 20kHz, 0.04% THD, 8Ω ..............85W+85W
CENTER, 20Hz to 20kHz, 0.04% THD, 8Ω ................. 85W
REAR, 20Hz to 20kHz, 0.04% THD, 8Ω .............85W+85W
HTR-5170
MAIN, 1kHz, 0.07% THD, 8Ω ..........................100W+100W
CENTER, 1kHz, 0.07% THD, 8Ω ............................... 100W
REAR, 1kHz, 0.07% THD, 8Ω .........................100W+100W
Maximum Power per Channel (R,T models only)
MAIN L/R, 1kHz, EIAJ, 10% THD, 8Ω ............125W+125W
CENTER, 1kHz, EIAJ, 10% THD, 8Ω ........................ 125W
REAR L/R, 1kHz, EIAJ, 10% THD, 8Ω ........... 125W+125W
Dynamic Power per Channel (IHF)
MAIN L/R, 8/6/4/2Ω................................ 115/140/170/200W
Dynamic Headroom (U, C, models only)
MAIN L/R, 8Ω............................................................ 1.31dB
DIN Standard Output Power Per Channel
B, G, L Models
MAIN L/R, 1kHz, 0.7% THD, 4Ω ................................ 130W
IEC Power (L model only)
MAIN L/R, 1kHz, 0.04% THD, 8Ω ................................ 95W
Power Band Width
MAIN L/R, 0.09% THD, 40W/8Ω ................. 10Hz to 50kHz
Damping Factor
MAIN L/R, 20Hz to 20kHz, (SP.A) 8Ω ................80 or more
Input Sensitivity/Impedance
PHONO MM ..................................................... 2.5mV/47kΩ
CD, etc ............................................................ 150mV/47kΩ
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/1.0kΩ
PRE OUT ........................................................... 2.6V/1.1kΩ
SUB WOOFER (MAIN SP : SMALL)................. 4.0V/1.2kΩ
Headphone Jack Rated Output/Impedance
1kHz, 150mV, 8Ω .............................................. 0.55V/390Ω
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/8Ω) ........... 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 ...........................
CD, etc, Input 5.1kΩ Shorted, 1kHz/10kHz .........................
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
■ 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 Ω)
U, C, R, T models only
Mono ......................................................... 1.6µV (15.3dBf)
Stereo......................................................... 23µV (38.5dBf)
Usable Sensitivity (75 Ω)
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
■ 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 ..................................................... 300 µV/m
Signal-to-Noise Ratio ..................................................... 52dB
60dB or more/55dB or more
Tone Control Characteristics
60dB or more/45dB or more
BASS : Boost/cut ....................................... ±10dB (50Hz)
Turnover Frequency ................................. 350Hz
TREBLE : Boost/cut ..................................... ± 10dB (20kHz)
5
RX-V795a/RDS/HTR-5170
RX-V795a
HTR-5170
/
RDS
■ 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/75Ω
S-Video Signal Level
Y .......................................................................... 1Vp-p/75 Ω
C ................................................................... 0.286Vp-p/75Ω
Maximum Input Level ................................... 1.5Vp-p or more
Signal-to-Noise Ratio ....................................... 50dB or more
Monitor Output Frequency Response ..5Hz to 10MHz, –3dB
■ GENERAL
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
* Specifications are subject to change without notice.
● DIMENSIONS
435(17–1/8")
21.5
(7/8")
391(15–3/8")
349.5(13–3/4")
20
(13/16")
130(5–1/8")
151(5–15/16")
21
(13/16")
Units : mm (inch)
U ............................ USA model
C ............................ Canadian model
A ............................ Australian model
B ............................ British model
G ............................ European model
L ............................ Singapore model
R ............................ General model
T ............................ 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.
6
RDS
/
RX-V795a/RDS/HTR-5170
HTR-5170
■ INTERNAL VIEW
RX-V795a
q we r t y u i 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)
!1!2!3!4!5!6!7!8!9
!7 P. C. B. MAIN (1)
!8 P. C. B. MAIN (4)
!9 P. C. B. MAIN (3)
■ 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.
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.
w
q
Top Cover
r
q
Bottom Cover
Front Panel
e
r
e
e
w
w
Fig. 1
7
RX-V795a/RDS/HTR-5170
■ 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.
RX-V795a
HTR-5170
/
RDS
No.
1
ANALOG THROUGH
2
DSP THROUGH
3
AC–3/DTS THROUGH
4
PRO LOGIC
5
SPEAKERS SET
6
EFFECT OFF
/DISPLAY CHECK
7
MANUAL TEST
8
FACTORY PRESET
9
AD DATA CHECK
10
STATUS
11
VERSION CHECK
/CPU CHECK SUM
/EXIT
MAIN MENU
SUB MENU
1. MAIN BYPASS
2. DSP 0dB
1. YSS918–SRAM
2. YSS918
3. DSP FULL BIT
1. STATUS (BINARY FORM)
1. CENTER LARGE
2. EFFECT OFF
1. MAIN : SMALL 0dB
2. MAIN : LARGE 0dB
3. MAIN : LARGE –10dB
4. LFE/BASS : MAIN
CENTER : NONE
5. LFE/BASS : MAIN
6. LFE/BASS : SWFR
7. CENTER : NONE
8. CENTER : SMALL
REAR : SMALL
9. FRONT MIX
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
REMOTE CODE
7A–88 : DSP/1
– – –
7A–89 : DSP/2
– – –
– – –
– – –
7A–8A : DSP/3
– – –
7A–8B : DSP/4
7A–8C : DSP/5
7A–8D : DSP/6
7A–8E : DSP/7
7A–8F : DSP/8
7A–90 : DSP/9
7A–91 : DSP/11
– – –
7A–85 : DSP/15
7A–56 : DSP or ···/16
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
8
RDS
/
RX-V795a/RDS/HTR-5170
2. BEGINNING AND CANCELLATION
HTR-5170
RX-V795a
(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 CENTER R SUR. L SUR. SWFR
LEVEL (dB) 0 0 0 0
2.
MUTING : OFF
3.
INPUT (VIDEO) : DVD/LD (DVD/LD)
4.
CENTER SPEAKER : LARGE
5.
REAR SPEAKER : LARGE
6.
MAIN SPEAKER : LARGE
7.
LFE/BASS OUT : 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
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
THR 9.AD DATA
1. MAIN BYPASS
9
RX-V795a/RDS/HTR-5170
● 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.
● 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 ver-
CHK SUM:XXXX X
sion (one letter) display
* Used when checking on-board writing to main microprocessor.
Appears when the current protection function is operating.
I PROTECTION
When power is turned on in an abnormal status, the power relay
will come on, protection will operate immediately, and power will
turn off.
RX-V795a
HTR-5170
/
RDS
Appears when the power protection function is operating.
PS PRT : XX%
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.
Appears when the power amp DC protection function is operating.
DC PRT : XX%
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.
Appears when the heat sink thermal protection function is operat-
TMP PRT : XX%
ing. F or the % value, the v oltage 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
RDS
DD/DTS
SURROUND
MOVIE
THEATER 1
MONO
MOVIE
ROCK
CONCERT
HALL
TV
SPORTS
JAZZ CLUB
DISCO
CHURCH
TEST
EFFECT
MOVIE
THEATER 2
/
RX-V795a/RDS/HTR-5170
3. OPERATION AND DISPLAY WHEN STARTING DIAGNOSIS FUNCTION
HTR-5170
RX-V795a
(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.
● 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.
● 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.
(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
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)
RX-V795a
HTR-5170
/
RDS
CODEC.AD
ANALOG IN
AC3D2av(YSS918)
L/R
AK4526
DECODER
DIR2
DIGITAL IN
DSP
L/R L/R
L/R
L/R
YM3436
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
AK4526
DECODER
DIR2
DIGITAL IN
DSP
L/R L/R
L/R
L/R
YM3436
DA
AK4320
CODEC.DA
AK4526
DA
AK4320
CODEC.DA
AK4526
MAIN L
MAIN R
FRONT L
FRONT R
REAR L
REAR R
CENTER
SUBWOOFER
MAIN L
MAIN R
FRONT L
FRONT R
REAR L
REAR R
CENTER
SUBWOOFER
1M SRAM
12
RDS
/
RX-V795a/RDS/HTR-5170
(2) DSP THROUGH
HTR-5170
RX-V795a
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)
DA
AK4320
L/R
AK4526
DSP
(L+R)/2
(L+R)/2
(L+R)/2
CODEC.DA
AK4526
DIGITAL IN
DIR2
DECODER
(L+R)/2
YM3436
L/R L/R
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)
DA
AK4320
L/R
AK4526
DECODER
DIR2
DIGITAL IN
L/R
DSP
L/R
L/R
L/R
CODEC.DA
AK4526
YM3436
MAIN L
MAIN R
FRONT L
FRONT R
REAR L
REAR R
CENTER
SUBWOOFER
MAIN L
MAIN R
FRONT L
FRONT R
REAR L
REAR R
CENTER
SUBWOOFER
13
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.
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.
RX-V795a
HTR-5170
/
RDS
CODEC.AD
ANALOG IN
AK4526
DIR2
DIGITAL IN
YM3436
Ac3 Status Info. : Bit 76543210
10001001
AC3D2av(YSS918)
L/R
DECODER
DOLBY DIGITAL
or
PRO LOGIC
or
DTS(v795~)
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
DSP
C/LFEC/LFE
LS/RSLS/RS
DA
AK4320
CODEC.DA
AK4526
MAIN L
MAIN R
CENTER
SUBWOOFER
REAR L
REAR R
(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 (AC-
3) 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
YM3436
DOLBY DIGITAL
or
PRO LOGIC
or
DTS(v795~)
C
S
1M SRAM
C
S
AK4526
CENTER
REAR L
REAR R
4. PRO EFECT:OFF
MAIN L/R are bypassed and output.
14
RDS
/
RX-V795a/RDS/HTR-5170
(5) SPEAKERS SET
HTR-5170
RX-V795a
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 MAIN:SML 0dB 7A-8B LARGE LARGE SMALL 0dB SWFR MAIN L/R
2 MAIN:LRG 0dB 7A-8C LARGE LARGE LARGE 0dB SWFR MAIN L/R
3 MAIN:LRG -10 7A-8D LARGE LARGE LARGE -10dB SWFR MAIN L/R
4 B:M&C:NONE 7A-8E NONE LARGE LARGE 0dB MAIN MAIN L/R
5 BASS:MAIN 7A-8F LARGE LARGE LARGE 0dB MAIN LFE -> L/R
6 LFE/BASS:SWFR 7A-90 LARGE LARGE LARGE 0dB SWFR LFE -> SWFR
7 CENTER:NONE 7A-91 NONE LARGE LARGE 0dB SWFR CENTER -> L/R
8 C:SML&R:SML – – – SMALL SMALL LARGE 0dB SWFR CENTER/REAR
9 FRONT MIX 7A-85 LARGE LARGE LARGE 0dB SWFR FRONT -> L/R
REMOTE
CODE
CENTER SP
REAR SP MAIN SP MAIN LVL LFE/BASS OUTPUT
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 playbac k 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
(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)
RX-V795a
HTR-5170
/
RDS
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.
Inhibits initialization of the RAM. Specify this option to protect
8. PRESET INHI
user set values.
Reserve to initialize the backup RAM. (The RAM is actually ini-
8. PRESET RSRVD
tialized 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 P1 P2 P3 P4 P5 P6 P7 P8
A
B
C
D
E
16
RDS
/
RX-V795a/RDS/HTR-5170
(9) AD DATA CHECK
HTR-5170
RX-V795a
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.
9.AD CHECK :000
bit 2 1 0
000
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.
When there is drive history record : 1
FAN 3.0V
FAN 3.7V
FAN 5.0V
* 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.
9.K2:100RE: 0
Tuning the rotary encoder.
K2: Panel key on main unit
RE: REC OUT (value : 0)
9.SI: OTP: 28
Tuning the rotary encoder.
SI: Tuner signal level
TP: Heat sink temperature
(normal value: 6-40)
9.DC: 7PS: 23
Press the “PROGRAM w” key.
DC: DC protection value
(normal value: 1-13)
PS: Power voltage protection value
(normal value: 18-29)
AD Value
K0 TUNING UP TUNING DOWN FM/AM TUNING MODE EDIT
K1 A/B/C/D/E 1 2 3 4
010203040
17
K2 EXT. DECODER INPUT MODE EFFECT PROG > PROG <
AD Value
K0 MEMORY EON
K1 56 7 8×
K2 + – SET MENU LEVEL ×
50 60 70 80 90
RDS MODE/FREQ
PTY START 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.
(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.CPU/2 6A 00 10.CHS/1 00 01
RX-V795a/RDS/HTR-5170
10.CHS/2 00 00
RX-V795a
HTR-5170
/
RDS
10.VER/1 5A 30 10.VER/2 36 42
10.BIO/1 00 00
10.BI0/2 00 00 10.BI1/1 00 00 10.BI1/2 00 00
10.SUM/1 44 39
10.BI2/1 00 00 10.BI2/2 00 00 10.BI3/1 00 00
10.BI4/1 00 00 10.BI4/2 00 00
10.BI5/1 00 00
[CPU/1] <High Byte>
bit7 MUTE Request bit3
bit6 fs 000B:analog 001B:32k bit2
bit5 010B:44.1k 011B:48kHz bit1
bit4 others:not defined 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
acmod: If it is 1000B or more with DTS 7.1 signal, the DSP block will be muted.
<Low Byte>
bit7 AC3 DECODE OK
bit6 DTS DECODE OK
bit5 Red DTS record (flashes ad lights)
bit4 1 in audio models other than PCM
linear audio
bit3 DEM MUTE (without RF signal)
bit2 IEC958 digital format error
bit1 IEC958 commercial-use device bit
bit0 IEC958 digital data bit (DAT, CD-
ROM, etc.)
[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.
10.SUM/2 43 33
10.BI3/2 00 00
10.BI5/2 00 00
10.CPU/1 00 00
High Byte
Low Byte
Indicate
bit 7654 3210
Indicate
00
3210
7654
00
0 0000
00
11
1 0001
11
22
2 0010
22
33
3 0011
33
44
4 0100
44
55
5 0101
55
66
6 0110
66
77
7 0111
77
88
8 1000
88
99
9 1001
99
AA
A 1010
AA
BB
B 1011
BB
CC
C 1100
CC
DD
D 1101
DD
EE
E 1110
EE
FF
F 1111
FF
bit
[CPU/2] <High Byte>
bit7 AC3 KARAOKE bit3 On-board write mode
bit6 DIR2 LOCKN bit2 The number of digital inputs is 2 “0”
bit5 DIR2 ERR bit1 DSP is AC3D2 (DTS present) “1”
bit4 AC3D MUTE bit0 RF DEM present
<Low Byte> Always “00”
[CHS/1/2] IEC958 channel status bits 00-31 available from DIR2
<CHS/1 Hi-byte> bits 00-07
<CHS/1 Lo-byte> bits 08-15
<CHS/1 Hi-byte> bits 16-23
<CHS/1 Lo-byte> 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
RDS
/
RX-V795a/RDS/HTR-5170
(11) CPU VERSION/CHECK SUM/PORT INFO/EXIT DIAG
HTR-5170
RX-V795a
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
11.S-SM:CB96 C
11.M-VER:A01B
11.S-VER:C05B
11.P:00000000
Main microprocessor check sum
Software version
Check sum
DSP microprocessor check sum
Software version
Check sum
Main microprocessor version
DSP microprocessor version
One suffix letter is for compatibility of communications between the main
and DSP microprocessors.
* Use microprocessors with the same suffix.
bit76543210
11000000
EXIT
❈1
Port 51 AM FM
Low(0) 530–1710kHz/10kHz 87.5–108MHz/100kHz
Hi(1) 531–1611kHz/9kHz 87.5–108.0MHz/50kHz
❈2
Tuner Mode 1 0*00*1 1*21*3
Tuner Mode 0 0101
*0 AM: 531–1611kHz/9kHz FM: 76.0–90.0MHz/100kHz (J model)
*1 AM: 530–1710kHz/10kHz FM: 87.5–107.9MHz/200kHz (U, C models)
*2 AM: 531–1611kHz/9kHz FM: 87.5–108.0MHz/50kHz (A, L models)
*3 R model: Tuner Frequency is selected by Port 51 and Model Type.
❈3
Model Type 1 1 V795a
Model Type 0 1
Frequency switch for R model (❈1)
ZONE2 present/absent (1/0)
Tuner Mode 0 (❈2)
Tuner Mode 1 (❈2)
VIDEO format: PAL/NTSC (1/0)
RDS present/absent (1/0)
Model Type 0 (❈3)
Model Type 1 (❈3)
19
■ FACTORY PRESET
All of the system settings are initially set from the factory as follows.
● INPUT (VIDEO) DVD/LD (DVD/LD)
● EFFECT LEVEL
EFFECT CHANNEL PRESET VALUE
CENTER 0dB
RIGHT SURROUND 0dB
LEFT SURROUND 0dB
SUB WOOFER 0dB
● DSP PROGRAM
INPUT DSP RROGRAM
PHONO CONCERT HALL
CD ROCK CONCERT
TUNER DISCO
TAPE MONITOR JAZZ CLUB
DVD/LD MOVIE THEATER 1 70mm/DGTL/DTS Sci-Fi
TV/DBS TV/SPORTS
VCR ENHANCED
VIDEO AUX PRO LOGIC
RX-V795a/RDS/HTR-5170
RX-V795a
HTR-5170
/
RDS
● SET MENU
No. SET MENU PRESET VALUE
1. CENTER SPEAKER LRG
2. REAR SPEAKER LARGE
3. MAIN SPEAKER LARGE
4. LFE/BASS OUT SW
5. MAIN LEVEL Normal
6. DOLBY DGTL SET LFE LEVEL 0 dB
7. DOLBY DGTL SET DYNAMIC RANGE MAX
8. DTS SET LFE LEVEL 0 dB
9. CENTER DELAY 0 ms
10. PARAMETER INI –––
11. MEMORY GUARD OFF
12. TV/DBS INPUT AUTO
13. DIMMER 0
● PRESET STATIONS
STATION FM FACTORY PRESET DATA (MHz)
PAGE NO. U, C R, L, G, A, B J
1 87.5 87.50 76.0
2 90.1 90.10 83.0
3 95.1 95.10 84.0
A/C/E 4 98.1 98.10 86.0
5 107.9 108.00 90.0
6 88.1 88.10 78.0
7 106.1 106.10 88.0
8 107.9 108.00 82.1
STATION AM FACTORY PRESET DATA (kHz)
PAGE NO. U, C, R R, L, G, A, B, J
1 630 630
2 1080 1080
3 1440 1440
B/D 4 530 531
5 1710 1611
6 900 900
7 1350 1350
8 1400 1404
20
RDS
/
RX-V795a/RDS/HTR-5170
HTR-5170
■ AMP ADJUSTMENTS
RX-V795a
● 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
Rating (DC)
0.05mV~1.5mV
If the measured voltage exceeds1.6mV, cut the
lead wire of R557(L ch), R565(R ch), R572(C ch),
R744(RL ch) or R751(RR ch) and then check
again if each measured value satisfies the rating.
Note
* 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(820Ω), R565(820Ω), R572(820Ω),
R744(820Ω) or R751(820Ω).
• Q514, Q516, Q518, Q707 and Q710 are transistors for temperature correction. Apply silicone
grease to the contact surface with the heat sink.
CB530
R751
R813
R557 (L ch)
R565 (R ch)
R572 (C ch)
R744 (RL ch)
R751 (RR ch)
R565
Cut OFF
R744
R761
MAIN(2)
R761 (RL)
R813 (RR)
CB531
MAIN(1)
0.05mV ~ 1.5mV (DC)0.05mV ~ 1.5mV (DC)
R572
R557
CB529
CB529 (L ch)
CB530 (R ch)
CB531 (C ch)
21
■ TUNER ADJUSTMENTS
RX-V795a/RDS/HTR-5170
RX-V795a
HTR-5170
/
RDS
● 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
● Dummy antenna
FM dummy antenna
10Ω 45Ω
E1
FM SG
(50Ω)
E2 (dB) = E1 (dB) -6 (dB)
FM dummy antenna
E1
FM SG
(75Ω)
E2 (dB) = E1 (dB)
AM dummy antenna
AM SG
(50Ω)
50Ω
E2
RECEIVER
E2
(75Ω)
RECEIVER
(75Ω)
AM ANT
GND
60Ω
10KΩ
● Test point
DISCRIMINATOR
BALANCE ADJ.
(IC1 side)
SEPARATION
ADJ.
MONAURAL
DISTORTION ADJ.
(TE1 side)
T1
TP1
T3
CB4
VR2
T5
T4
IC1
16
TP2
AM ANT
GND
T2
VR1
IC3
PK2
FM ANT
AM SENSITIVITY ADJ.
FRONT END
IC2
SIGNAL METER
ADJ.
IFT
IFT
U,C,R models A,L,T,B,G models
22
RDS
/
RX-V795a/RDS/HTR-5170
HTR-5170
RX-V795a
FM Adjustment
● Before Adjustment
1) For dB, 1µV=0dBµ
Example : 60dBµ=1mV
2) 100% modulation means that the frequency deviation is
± 75kHz.
● Connection diagram (Measuring instruments)
1) Discriminator balance adjustment
FM
FM
ANT
GND
ANT
GND
TUNER
P. C. B.
TUNER
P. C. B.
L
R
REC
OUT
FM
SG
Oscillator
FM
dummy
antenna
2) Monaural distortion adjustment
FM
SG
FM
dummy
antenna
TP1
TP2
DCVM
R25
Oscilloscope
DIST. M
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
3) Stereo distortion adjustment/separation adjustment
L
R
REC
OUT
YLF-15
(LPF)
Oscilloscope
ACVM
DIST. M
FM
SG
SSG
FM
dummy
antenna
FM
ANT
GND
TUNER
P. C. . B.
4) Sensitivity Verification
L
R
REC
OUT
Oscilloscope
ACVM
FM
SG
FM
dummy
antenna
FM
ANT
GND
TUNER
P. C. B.
Oscillator
Step
Adjustment item
Rough adjustment of
1
discriminator balance
Signal (ANT IN)
FM ANT (75Ω)
98.1MHz **
Reception
frequency
98.1MHz
* (A-4)
Adjustment
point
T1
(IC1 side core)
Test point
Both ends of R25
(Between TP1 and TP2)
70dBµ
MONO 100Hz
100% modulation
Rough adjustment of
2
monaural distortion
Fine adjustment of
3
discriminator balance
Fine adjustment of
4
monaural distortion
Verification of dis-
5
criminator balance
Same as Step 1.
Same as Step 1.
Same as Step 1.
Same as Step 1.
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
Both ends of R25
(Between TP1 and TP2)
REC OUT L, R
Both ends of R25
(Between TP1 and TP2)
*:Execution of FACTORY PRESET (Refer to page 16.) will facilitate setting reception frequency for adjustment.
** Must be 98.1MHz ± 5kHz
DIST. M
Rating
DC 0V±100mV
Minimize the distortion.
DC 0V±50mV
Minimize the distortion (to 43dB
or less).
DC 0V±50mV
23
See page 22 for TP locations & adjustment points.
Step
6
7
8
9
10
11
12
Adjustment item
Adjustment of
front end IFT
Verification of monaural distortion
Verification of stereo
distortion
Verification of sensitivity
Adjustment of
Separation
Adjustment of Signal
meter
Verification of auto
tuning
Signal (ANT IN)
FM ANT (75Ω)
98.1MHz
70dBµ
MONO
1kHz,
100% modulation
FM ANT (75Ω)
98.1MHz
70dBµ
MONO 1kHz,
100% modulation
FM ANT (75Ω)
98.1MHz
70dBµ
Stereo L or R
1kHz,
100% modulation
FM ANT (75Ω)
88.1MHz
98.1MHz
106.1MHz
MONO 1kHz
Modulation off
FM ANT (75Ω)
98.1MHz
70dBµ
Stereo L or R
1kHz,
100% modulation
FM ANT (75Ω)
98.1MHz
45dBµ
MONO 1kHz
30% modulation
–10dBµ or less
FM ANT (75Ω)
98.1MHz
26dBµ
Stereo L or R
1kHz,
30% modulation
Reception
frequency
98.1MHz
* (A-4)
98.1MHz
* (A-4)
98.1MHz
* (A-4)
*Tuning
88.1MHz
* (A-6)
98.1MHz
* (A-4)
106.1MHz
* (A-7)
98.1MHz
* (A-4)
98.1MHz
* (A-4)
98.1MHz
* (A-4)
mode
should be
AUTO.
Adjusted
point
Front end IFT
VR2
VR1
Test point
Pin 16 of IC1
REC OUT L, R
REC OUT L, R
ANT (75Ω)
REC OUT L, R
RX-V795a/RDS/HTR-5170
Rating
Adjust so that the DC voltage
is maximum.
CAUTION : Over-adjustment
of the IFT core will reduce the
sensitivity.
Maximum ±90°
0.1%
0.2%
•STEREO indicator should
light.
1)Set the tuning mode to
MAN’L MONO.
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)
With SSG output at L or R, the
signal leakage level at the
other channel should be minimized.
48dB or more
Adjust so that all segments
light.
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.
(Muting OFF)
RX-V795a
HTR-5170
/
RDS
*:Execution of FACTORY PRESET (Refer to page 16.) will facilitate setting reception frequency for adjustment.
24
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