Yamaha RXV-10, RXV-10 mK2 Service manual

AV RECEIVER

RX-V10MK

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.

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

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

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.

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22

■CONTENTS

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

REMOTE CONTROL PANEL ......................................... 1

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

REAR PANELS ............................................................... 3

SPECIFICATIONS.......................................................4~5

INTERNAL VIEW ............................................................ 6

DISASSEMBLY PROCEDURES .................................... 6

SELF CHECK MODE .................................................. 7~9

AMP ADJUSTMENT ..................................................... 10

100656

TUNER ADJUSTMENTS ........................................ 11~14

IC DATA .................................................................. 15~20

DISPLAY DATA ........................................................... 21

BLOCK DIAGRAM.................................................. 22~25

PRINTED CIRCUIT BOARD ................................... 26~39

SCHEMATIC DIAGRAM ......................................... 40~43

PARTS LIST ............................................................ 44~55

REMOTE CONTROL TRANSMITTER ......................... 56

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RX-V10MK

22

■ TO SERVICE PERSONNEL

1. Critical Components information.
Components having special characteristics are marked 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.

● Meter impedance should be equivalent to 1500 ohm shunted

by 0.15µF.

● Leakage current must not exceed 0.5mA.

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

WALL

OUTLET

WARNING: CHEMICAL CONTENT NOTICE!

EQUIPMENT

UNDER TEST

INSULATING

TABLE

AC LEAKAGE

TESTER OR

EQUIVALENT

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.

■ REMOTE CONTROL PANEL

1

■ FRONT PANELS

▼ R model

▼ B ,G models

SPEAKERS

RX-V10MK

22

2

22

SPEAKERS

RDS MODE/FREQ EON

PTY SEEK

MODE START

2

22

2

RX-V10MK

22

■ REAR PANELS

▼ R model

▼ B model

FM

ANT

AM

ANT

50kHz

9kHz

10kHz

100kHz

FM AM

FREQUENCY

STEP

FM

ANT

AM

ANT

IN

OUT

IN

OUT

AUDIO SIGNAL

IN

OUT

IN

OUT

VIDEO

SIGNAL

MONITOR

OUT

IN

OUT

MONITOR

OUT

IN

OUT

8Ω MIN./
SPEAKER

OUT

TV

MODE

PAL

SUB

NTSC

WOOFER

SUB

WOOFER CENTER

SURROUND

MAIN

6CH DISCRT INPUT

8Ω MIN./
SPEAKER

OUT

SUB

WOOFER

SUB

WOOFER CENTER

REAR CENTER REAR

MAIN

8ΩMIN./SPEAKER

SPEAKERS

REAR CENTER REAR

MAIN

VOLT AGE SELECT OR

240V

AC OUTLETS

100W MAX. TOTAL

SWITCHED

MODEL NO. RX-V10MK2

110/120/220/240VOLTS
160WATTS 50/60Hz

YAMAHA CORPORATION

MADE IN MALAYSIA

MODEL NO.

230 VOLTS 160WATTS 50Hz

YAMAHA CORPORATION

MADE IN MALAYSIA

RISK OF ELECTRIC SHOCK

RX-V10MK2

CAUTION

DO NOT OPEN

▼ G model

3

AM

ANT

FM

ANT

AUDIO SIGNAL

IN

OUT

IN

OUT

AUDIO SIGNAL

VIDEO

SIGNAL

VIDEO

SIGNAL

MONITOR

OUT

IN

OUT

MAIN

SURROUND

6CH DISCRT INPUT

8Ω MIN./
SPEAKER

OUT

SUB

WOOFER

SUB

WOOFER CENTER

MAIN

SURROUND

6CH DISCRT INPUT

8ΩMIN./SPEAKER

SPEAKERS

REAR CENTER REAR

MAIN

8ΩMIN./SPEAKER

SPEAKERS

100W MAX. SWITCHED

AC OUTLET

230 VOLTS 160WATTS 50Hz

YAMAHA CORPORATION

MADE IN MALAYSIA

MODEL NO.
RX-V10MK2

AC OUTLETS

100W MAX.

TOTAL

SWITCHED

■ SPECIFICATIONS

RX-V10MK

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22

■AUDIO SECTION
Minimum RMS output Power per Channel
(Power Amp. Section)

MAIN

20Hz to 20kHz, 0.04% THD, 8Ω 45W+45W

CENTER

1kHz, 0.04% THD, 8Ω 45W

REAR

1kHz, 0.3% THD, 8Ω 15W+15W

Maximum Power Per Channel (EIAJ)

R model only

1kHz, 10% THD, 8Ω 65W+65W

Dynamic Power Per Channel(IHF)

MAIN, L/R Stereo

8/6Ω 65W+65W/75W+75W
4/2Ω 95W+95W/105W+105W

DIN Standard Output Power Per Channel

G model only

MAIN, 1kHz, 0.7% THD, L/R Stereo 4Ω 60W+60W

IEC Power Per Channel

G model only

MAIN, 1kHz, 0.1% THD, L/R Stereo 8Ω 50W+50W

Power Band Width

MAIN, 0.1% THD, 22.5W, 8Ω 10Hz to 50kHz

Input Sensitivity/Impedance

PHONO (MM) 2.5mV/47kΩ
CD etc 150mV/47kΩ
6ch MAIN L/R 150mV/70kΩ

CENTER 150mV/40kΩ
REAR L/R 90mV/40kΩ
SUBWOOFER 150mV/40kΩ

Maximum input Signal Level

PHONO (MM), 1kHz, 0.5% THD 100mV
CD etc (EFFECT ON), 1kHz, 0.5% THD 2.5V

Output Level/Impedance

REC OUT (CD etc, Input = 150mV) 150mV/0.9kΩ
SUBWOOFER (EFFECT OFF, CD etc, Input = 150mV)

3.5V/1.6kΩ

Headphone Jack Rated Output/Impedance

CD etc, INPUT=1kHz, 150mV, 8Ω 0.45V/330Ω

Frequency Response(20Hz to 20kHz)

CD etc, MAIN 0±0.5dB

RIAA Equalization Deviation

PHONO (MM) 0±0.5dB

Total Harmonic Distortion(20Hz to 20kHz)

PHONO (MM) to REC OUT (1V) 0.02%
CD etc (EFFECT OFF) to MAIN SP OUT (22.5W/8Ω)

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

PHONO (MM), Input 5mV Shorted, REC OUT 82dB
CD etc(EFFECT OFF), Input 150mV Shorted, SP OUT

Residual Noise(IHF-A-Network)

MAIN L/R, SP OUT 140µV

Channel Separation(Vol. MAX, EFFECT OFF)

PHONO (MM), Input Shorted, 1kHz 60dB
CD etc, Input 5.1kΩ terminated, 1kHz 60dB

Tone Control Characteristics

BASS : Boost/Cut ±10dB(50Hz)

: Turnover Frequency 350Hz

TREBLE : Boost/Cut ±10dB(20kHz)

: Turnover Frequency 3.5kHz

Gain Tracking Error(0~–60dB)

MAIN L/R 3dB

■FM SECTION
Tuning Range

R model 87.50 to 108.00MHz
B, G, models 87.50 to 108.00MHz

50dB Quieting Sensitivity(IHF)

R model only

Mono 1.6µV(15.3dBf)
Stereo 23µV(38.5dBf)

Usable Sensitivity

B, G models

DIN, Mono(S/N 26dB) 0.9µV
DIN, Stereo(S/N 46dB) 28µV

Alternate Channel Selectivity

R model (±400kHz) 75dB
G, B models

Selectivity(two signals, 40kHz Dev. ±300kHz) 55dB

Signal-to-Noise Ratio

R model

Mono/Stereo(IHF) 80/75dB

G, B models

Mono/Stereo(DIN-weighted, 40kHz Dev.) 74/69dB

Harmonic Distortion(1kHz)

R model

Mono/Stereo 0.1/0.2%

G, B models

Mono/Stereo(40kHz Dev.) 0.1/0.2%

Stereo Separation(1kHz)

R model 48dB
G, B models(40kHz Dev.) 48dB

Frequency Response

30Hz to 15kHz 0±1dB

Output Level(1kHz)

R model

100% mod 500mV

B, G models (40kHz Dev.) 400mV

Antenna Input 75Ω unbalanced

0.02%

95dB

4

RX-V10MK

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■AM SECTION

Tuning Range

R model 531 to 1611/530 to 1710kHz
B, G, models 531 to 1611kHz

Usable Sensitivity 300µV/m
Output Level(1kHz)

30% mod. 150mV

Signal to Noise Ratio 50dB
Antenna Loop antenna

■VIDEO SECTION

Video Signal Type

R model NTSC/PAL
B, G models PAL

Signal Level 1Vp-p/75Ω
Maximum Input Level 1.5Vp-p
Signal-to-Noise Ratio 50dB
Monitor Out Frequency Response(–3dB) 5Hz~10MHz

■GENERAL

Power Supply

R model AC110/120/220/240V, 50/60Hz
B, G models AC230V, 50Hz

Power Consumption 160W
Maximum Power Consumption

R model only

1kHz, 10% THD, 8Ω 360W

AC Outlet

R, G models, Switched x 2 100W max(Total)
B model, Switched x 1 100W max

Dimensions(W x H x D) 280 x 118.5 x 388.5mm

(11" x 4-11/16" x 15-9/16")

Weight 7.3kg(16Ibs 3 oz)
Accessories AM loop antenna x 1

Indoor FM antenna x 1

Remote Control Transmitter x 1

Battery (siza "AA", "R06")

* Specifications subject to change without notice.

R ............. General model

B ............. British model

G.............European model

●DIMENSIONS

280(11")

21.5
(13/16")

388.5(15-9/16")

345(113-11/16")

22

(14/16")

110(4-5/16")

118.5(4-11/16")

8.5
(5/16")

Unit: mm (inch)

5

■ INTERNAL VIEW

RX-V10MK

22

2

22

CB254

21

#405

#181
#331
#110

3

4

5

CB553

6

#323

7

CB552

8

CB191

90

CB6

CB802

A

1 MAIN P.C.B. ASS'Y (10)
2 POWER TRANSFORMER
3 MAIN P.C.B. ASS'Y (3)
4 MAIN P.C.B. ASS'Y (8)

(R model only)

5 MAIN P.C.B. ASS'Y (6)
6 MAIN P.C.B. ASS'Y (4)
7 MAIN P.C.B. ASS'Y (9)
8 MAIN P.C.B. ASS'Y (7)
9 MAIN P.C.B. ASS'Y (5)
0 VOLUME P.C.B. ASS'Y (3)
A TUNER P.C.B. ASS'Y
B MAIN P.C.B. ASS'Y (2)
C VOLUME P.C.B. ASS'Y (4)
D FUNCTION P.C.B. ASS'Y (5)
E FUNCTION P.C.B. ASS'Y (4)
F MAIN P.C.B. ASS'Y (1)
G FUNCTION P.C.B. ASS'Y (2)
H VOLUME P.C.B. ASS'Y (1)
I FUNCTION P.C.B. ASS'Y (1)
J FUNCTION P.C.B. ASS'Y (3)
K VOLUME P.C.B. ASS'Y (2)

BCDE

FG H I J

■ DISASSEMBLY PROCEDURES

(Remove parts in disassembly order as numbered.)

1. Removal of Top Cover

Remove 2 screws (1) and 3 screws (2) in Fig. 1.

2. Removal of Front Panel Unit

a. Detach 11 connectors (CB191, 254, 552, 553, 802, 6,

#110, 181, 323, 331, 405). (See page 6, INTERNAL
VIEW) (CB6 : B, G models only)
b. Remove 4 screws (3) and 2 plastic rivets (4) and then

remove the Front Panel Unit in Fig. 1.

K

Top Cover

22

2

11

1

11

11

1

11

33

3

33

44

4

44

44

4

44

33

3

33

Front Panel Unit

22

Fig.1

6

22

2

RX-V10MK

22

■ SELF CHECK MODE

This machine has the SELF CHECK MODE (SELF) for facilitating inspectional measurement.

HOW TO START (2 options)

● SELF CHECK MODE with MAKER PRESET

Turn the POWER switch ON while pressing the CENTER
MODE key and PROGRAM key simultaneously, and then
the unit enters the SELF CHECK MODE.

WARNING : MAKER PRESET is initialized.

All user memory erased.

● SELF CHECK MODE without MAKER PRESET

Turn the POWER switch ON while pressing the A/B/C/D/E
key and TUNING MODE key simultaneously, and then the
unit enters the SELF CHECK MODE.

WARNING : MAKER PRESET is disabled.

● MAKER PRESET

1. TUNER section

Preset
Group

A, C, E

(FM)
B, D

(AM)

All tuning modes are AUTO.

P1

87.5MHz

630kHz

P2

90.1MHz

1080kHz

P3

95.1MHz

1440kHz

P4

98.1MHz

R : 530kHz
R, B, G : 531kHz

HOW TO EXIT

Turning the POWER switch OFF or pressing the KEY MODE
or Remote Control Transmitter ENHANCED key cancels the
SELF CHECK. (The unit enters normal mode)

P5

108.0MHz

R : 1710kHz
R, B, G : 1611kHz

P6

88.1MHz

900kHz

P7

106.1MHz

1350kHz

P8

108.0MHz

R : 1400kHz
R, B, G : 1404kHz

2. SURROUND section

SURROUND MODE : ROCK CONCERT
CENTER MODE : NORMAL

3. SELECTOR section

INPUT : CD

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

shown below. (This is becaue setting to the MAKER PRESET will cause the user memory content to be erased.)

Preset group

A
B
C
D
E

P1 P2 P3 P4 P5 P6 P7 P8

7

CONTENTS OF SELF CHECK MODE

RX-V10MK

22

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22

SELF

NO.

1

RAM THROUGH A

2

RAM THROUGH B

3

RAM THROUGH C

4

PRO LOGIC

5

DSP OFF

6

MANUAL TEST

7

DISPLAY CHECK

8

PHOTO MODE

9

BRIDGE CHECK

10

EXIT

11

OSD OFF

Menu

Select key

FM/AM
TUNING MODE
MEMORY
CENTER MODE

PROGRAM
A/B/C/D/E
TUNING DOWN
TUNING UP
KEY MODE

Remote Control

TEST
EFFECT
PROGRAM DOWN
PROGRAM UP
CD STOP PAUSE
SLEEP
A/B/C/D/E
PRESET DOWN
PRESET UP
ENHANCED
CD REW

DETAILS OF SELF CONTENTS

SELF 1 RAM THROUGH A

●

L/R is output through the bypass.

●

CENTER is output with the steering OFF and by (L+R)/2
(WIDE mode).

●

RL/RR passes through the PS-RAM and is output through
the DSP.

●

The electronic volume is 0dB for CENTER and –5dB for
REAR.

●

FL displays "C 1".

Transmitter

Supplement

• At first, SELF No. is 1, INPUT is CD, SWFR LEVEL is set
on 0 dB.

• INPUT is changeable at SELF No. 1 to 5.

• CENTER LEVEL, REAR LEVEL and SWFR LEVEL are
chengeable at SELF No. 1 to 6.

• The information of the SELF CHECK MODE is displayed
on the MONITOR OUT at SELF No. 1 to 9.

SELF 2 RAM THROUGH B

●

FL/FR and RL/RR pass through the PS-RAM and are output
through the DSP.

●

CENTER is output with the steering OFF and by (L+R)/2
(WIDE mode).

●

The electronic volume (for CENTER/REAR) is 0dB.

●

FL displays "C 2".

YSS203B-F

DOLBY PRO LOGIC section

L

R

DSP section

LH5P832N-10

CD INPUT : 1kHz, –20.0dB
SP OUT (L and Rch inputs)

: MAIN +21.0dB
: CENTER +4.0dB
: REAR +17.0dB

Steering
OFF

PS-RAM

C

RL

RR

L
C (L+R)/2
R

RL
RR

YSS203B-F

DOLBY PRO LOGIC section

L

R

DSP section

LH5P832N-10

CD INPUT : 1kHz, –20.0dB
SP OUT (L and Rch inputs)

: MAIN +21.2dB
: CENTER +13.2dB
: REAR +22.0dB

Steering
OFF

PS-RAM

C

FL
FR

RL
RR

L
C (L+R)/2
R

RL
RR

8

RX-V10MK

L C R S

22

2

22

SELF 3 RAM THROUGH C

●

L/R is output through the DSP.

●

CENTER is output with the steering OFF and by (L+R)/2
(WIDE mode).

●

RL/RR passes through the PS-RAM and is output through
the DSP.

●

The electronic volume (for CENTER /REAR) is 0dB.

●

FL displays "C 3".

YSS203B-F

DOLBY PRO LOGIC section

L

R

Steering

OFF

DSP section

PS-RAM

C

RL

RR

L
C (L+R)/2
R

RL

RR

SELF 5 DSP OFF

●

L/R output through the bypass.

●

The FL displays "C 5".

SELF 6 MANUAL TEST

●

Every time PROGRAM key or SLEEP key on the Remote
Control Transmitter is pressed, the TEST TONE shifts in

the order of

and is output.

(The CENTER mode is WIDE)

●

The electronic volume (for CENTER /REAR) is 0dB.

●

FL displays "C 6".

SELF 7 DISPLAY CHECK

●

All the segments of FL display will turn on for about 3
seconds.

LH5P832N-10

CD INPUT : 1kHz, –20.0dB
SP OUT (L and Rch inputs)

: MAIN +22.5dB
: CENTER +13.0dB
: REAR +22.0dB

SELF 4 PRO LOGIC

●

The auto input balance which is ON in the normal mode is
turned OFF.

●

CENTER MODE is changed by pressing the PRO LOGIC
key on the Remote Control Transmitter.

●

The electronic volume (for CENTER /REAR) is 0dB.

●

FL displays "C 4".

CD INPUT : 1kHz, –20.0dB
SP OUT (L and Rch inputs)

: MAIN +1.2dB
: CENTER +23.5dB
: REAR –34.0dB

SELF 8 PHOTO MODE

●

The FL displays "NDR 3" and the catalogue photographing
mode.

SELF 9 MANUAL TEST

●

The FL displays "c1c1c1", "PRESET", "RT", "FM",
"ENHANCED" and "ms".

SELF 10 EXIT

●

The state of the system (RX-V10MK
SELF CHECK MODE.

22

2) will escape from

22

SELF 11 OSD OFF

●

OSD FUNCTION (BLUE BACK and SUPERIMPOSE) is
turned OFF.

●

THE FL displays "C 11".

9

SP OUT (L or Rch input)

: MAIN +22.0dB
: CENTER –23.5dB
: REAR –33.0dB

RX-V10MK

■ AMP ADJUSTMENT

Confirmation and Adjustment of Iding Current of Main Amplifier

●

Right after power is turned on, confirm that the voltage across the terminals of CB111,CB112 and CB113 is between 0.1mV~3.0mV.

●

If it exceeds 3.0mV, open (cut off) R120 (on CB111), R127 (on CB112) or R134 (on CB113) and reconfirm the voltage again.

CB113

22

2

22

R134

R120

0.1mV~3.0mV
(DC)

CB111

Q108

Q106

Cut

R120
R127
R134

Note)

● If R120 and R127 or R134 have

already been cut off and idling
current does not flow, reconnect
R120 and R127 or R134.

● Q106, Q107 and Q108 are

transistors for temperature
correction.

Apply silicone grease to contact

surface with the heat sink.

0.1mV~3.0mV
(DC)

MAIN (1)

R127

0.1mV~3.0mV
(DC)

Front Panel

Q107

CB112

10

22

2

RX-V10MK

22

■ TUNER ADJUSTMENT

1. Measuring Instruments

●

FM signal generator (FM SG)

●

Stereo signal generator (SSG)

●

AM signal generator (AM SG)

●

Distortion meter (DIS. M)

●

AC Voltmeter (ACVM)

●

DC Voltmeterr (DCVM)

●

Oscilloscope

●

Low pass filter (YLF-15, fc=15kHz)

●

Oscillator

●Dummy antenna

FM dummy antenna

E1

FM SG

(50Ω)

E2 (dB) = E1 (dB) –6 (dB)

FM dummy antenna

E1

FM SG

(75Ω)

E2 (dB) = E1 (dB)

FM dummy antenna

FM SG

(50Ω)

10Ω

AM loop antenna

50Ω

45Ω

60Ω

10kΩ

E2

RECEIVER

(75Ω)

E2

RECEIVER

(75Ω)

AM ANT

GND

●TEST POINT

FM ANT

GND

AM ANT

MONAURAL

DISTORTION

ADJ.(ANTENNA)

11

IFT

PK1 FRONT END

T1

TP1

DISCRIMINATOR
BALANCE
ADJ.(FRONT)

PK2

IC1

R25

T2

TP216

SENSITIVITY

VR1

AM

ADJ

SEPARATION ADJ.

IC3

IC2

TUNER

SIGNAL

METER

ADJ.

P.C.B.

Front
Panel

G, B models only

RDS SENSITIVITY ADJ.

TP3

VR4

IC4

VR2

IC5

FM Adjustment

RX-V10MK

22

2

22

1. Befor Adjustment

●

For dBµ, 1µV=0dBµ applies.
Example : 60dBµ=1mV

●

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

●

Install the Matching Transformer and connect FM SG.

2. Connection diagram (Measuring instruments)

●

Discriminator balance adjustment.

L

R

REC
OUT

TP1

R25

TP2

Oscilloscope

FM
SG

FM

dummy

antenna

ANT

GND

Oscillator

●

Monaural distortion adjustment

FM

ANT

FM
SG

FM

dummy

antenna

GND

Oscillator

FM

TUNER
P. C. B.

TUNER
P. C. B.

DCVM

DIST. M

●

Set each switch to the following position unless otherwise
specified.

INPUT SELECTOR.......TUNER

TUNING MODE............. AUTO

●

Stereo distortion adjustment/separation adjustment.

TUNER
P. C. B.

L

R

REC
OUT

REC
OUT

YLF-

15(LPF)

Oscilloscope

ACVM

DIST. M

Oscilloscope

ACVM

DIST. M

FM

ANT

FM
SG

FM

dummy

antenna

GND

SSG

●

Sensitivity Verfication

FM
SG

FM

dummy

antenna

TUNER
P. C. B.

FM

ANT

GND

See page 11 for TP locations & adjustment points.

Step Adjustment item Signal (ANT IN) Test point Rating

Rough adjustment of
discriminator balance

1

FM ANT (75Ω)

98.1MHz
70dBµ

Reception
frequency

98.1MHz
✽(A-4)

MONO 100Hz
100% modulation

Rough adjustment of

2

monaural distortion
Fine adjustment of

3

discriminator balance

Fine adjustment of

4

monaural distortion
Verification of

5

discriminator balance

✽

Execution of MAKER PRESET (Refer to page 7.) will faciltate setting reception frequency for adjustment.

Same as Step 1. 98.1MHz

✽(A-4)

Same as Step 1. 98.1MHz

✽(A-4)

Same as Step 1. 98.1MHz

✽(A-4)

Same as Step 1. 98.1MHz

✽(A-4)

Adjustment

point

T1
(Front side core)

T1
(Antenna side core)

T1
(Front side core)

T1
(Antenna side core)

T1
(Front side core)

Both ends of R25

DC 0V±100mV

(Between TP1 and TP2)

REC OUT L, R Minimize the distortion.

Both ends of R25

DC 0V±50mV

(Between TP1 and TP2)
REC OUT L, R Minimize the distortion

(to –44dB or less).

Both ends of R25

DC 0V±50mV

(Between TP1 and TP2)

12

RX-V10MK

22

2

22

Step Adjustment item Signal (ANT IN) Test point Rating

Adjustment of
front end IFT

6

FM ANT (75Ω)

98.1MHz
30dBµ

Reception
frequency

98.1MHz
✽(A-4)

MONO 1kHz
100% modulation

Verification of
monaural distortion

7

FM ANT (75Ω)

98.1MHz
70dBµ

98.1MHz
✽(A-4)

Adjustment

point

Front end IFT Adjust so that the meter is

maximum.
CAUTION: Over-adjustment of
the IFT core will reduce the
sensitivity. (Maximum±90°)

REC OUT L, R –43dB or less

MONO 1kHz
100% modulation

Verification of
stereo distortion

8

FM ANT (75Ω)

98.1MHz
70dBµ
Stereo L or R
1kHz,

98.1MHz

✽(A-4)
✽Tuning mode

should be
AUTO.

REC OUT L, R

–33dB or less

●

STEREO indicator
should light.

100% modulation

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

9

Verification of
sensitivity

FM ANT (75Ω)

88.1MHz

98.1MHz

106.1MHz

88.1MHz
✽(A-6)

98.1MHz
✽(A-4)

106.1MHz
✽(A-7)

ANT (75Ω)

voltage at the ANT terminal
is 4dBµ or less.
(B, G only : 8 dBµ or less)

10

Adjustment of
separation

FM ANT (75Ω)

98.1MHz
70dBµ
Stereo L or R

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.

30dB or more.
1kHz,
100% modulation

Adjustment of
signal meter

FM ANT (75Ω)

98.1MHz

98.1MHz
✽(A-4)

VR1

45dBµ

11

MONO 1kHz,
30% modulation
–10dBµ or less

Verification of auto
tuning

FM ANT (75Ω)

98.1MHz

98.1MHz

23dBµ

12

Stereo L or R
1kHz,
30% modulation

✽

Execution of MAKER PRESET (Refer to page 7.) will faciltate setting reception frequency for adjustment.

Adjust so that all signal meters

light.

Check to ensure that signal

meters turn 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.

13