Pioneer VSX-1131 User manual

Service
Manual
ⓒOnkyo & Pioneer Corporation 2016
O-4561
FrontCover
AV RECEIVER
VSX-1131
VSX-LX301
VSX-1131
ORDER NO.
ARP4006
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model Type Power Requirement Remarks
VSX-1131(B) MDC AC 120V
VSX-1131(B) MMP AC 220V to 240V
VSX-1131(S) MMP AC 220V to 240V
VSX-1131(B) MMB AC 220V to 240V
VSX-1131(B) MMA AC 220V to 240V
VSX-1131(B) MDF AC 120V
VSX-LX301(B) MDC AC 120V

543
2
1 6
D
C
A
B
D
C
A
B
543
2
1 6
How to read suffix code of this model
The following is explanation for the suffix code.
V S X – 5 3 1 ( B ) W M P
Model No.
120V AC D
220～230V G
220～230／240V H
100V AC J
220～240V AC M
230V AC P
100～240V AC U
110～240V V
120V／220～240V W
Speaker System (without AMP.) :
Passive Subwoofer 0
Front Speaker F
Center Speaker C
Rear Speaker R
Back Speaker B
Australia A ←PP
United Kingdom B ←GB
North American C ←UC
USA D ←UC
Taiwan F ←TA
Japan J ←JP
Korea K ←KA
Russia L ←ER
Europe P ←YY
Hong Kong Q ←HK
China R ←CN
Brazil S ←CS
Thai T ←LE
Worldwide U ←WL
Speaker System (without AMP.) :
Left channel L
Right channel R
Center channel 0
Voltage Destination
The suffix code of each model is mentioned in serial
number label as per below.
Malaysia M
China C
Japan U
Others W
Production factory
Black B
Brown BR
Cherry C
Gold G
Green GR
Gray H
Black K
Blue L
Light Blue LB
Wood M
Orange O
Pink P
Red R
Silver S
Violet V
White W
Yellow Y
Color
VSX-531(B)WMP
COMMON
Production month Production year
To select parts list
as substitute symbol.
Note for suffix code

Panel
VSX-1131
1
A
B
C
D
E
23456
123456
A
B
C
D
E
Front Panel
Rear Panel
Remote Control Unit
RC-914R
Accessories
Dimensions : 435 mm (W) x 173 mm (H) x 371 mm (D), 17-1/8" × 6-30/37" × 14-20/33"
Weight (without package) : 10 kg (22 lbs.)
1. Remote controller (RC-914R) ×1
Batteries (AAA/R03) ×2 (Except MMR type)
2. Indoor FM antenna ×1
3. AM loop antenna ×1
4. Speaker setup microphone ×1
5. Power cord ×1
6. FM Isolator x1 (MMR type only)
180°
90°
(Taiwanese models)
VSX-1131

Panel
VSX-LX301
1
A
B
C
D
E
23456
123456
A
B
C
D
E
Front Panel
Rear Panel
Remote Control Unit
RC-914R
Accessories
Dimensions : 435 mm (W) x 173 mm (H) x 371 mm (D), 17-1/8" × 6-30/37" × 14-20/33"
Weight (without package) : 10 kg (22 lbs.)
1. Remote controller (RC-914R) ×1
Batteries (AAA/R03) ×2
2. Indoor FM antenna ×1
3. AM loop antenna ×1
4. Speaker setup microphone ×1
5. Power cord ×1
180°
90°
VSX-LX301

Reset
543
2
1 6
D
C
A
B
D
C
A
B
543
2
1 6
VSX-831/LX101
VSX-1131/LX301
How to Reset the Unit
Step1. STORE (To save user preferences.)
While pressing [HOME MENU] button, press [ENTER] button twice.
Step2. RESET
While pressing [AUTO DIRECT] button, press [STANDBY/ON] button.
※) ”Clear” appears on the display and the unit returns to standby. Do
not unplug the power cord until “Clear” disappears from the
display.
Step3. RECALL (To load user preferences.)
While pressing [HOME MENU] button, press [RETURN] button twice.
Standard Knob Position ( S.K.P. )
Master Volume Control -42dB
Input Selector BD/DVD
Muting Off
Listening Mode Ext.Stereo
Subwoofer Yes
Front Left Level 0 dB
Front Right Level 0 dB
Center Level 0 dB
Left Surround Level 0 dB
Right Surround Level 0 dB
Subwoofer Level 0 dB

Amp Diag Mode after Abnormal Conditions
5432
16
D
C
A
B
D
C
A
B
5432
16
COMMON
Protect Mode
The unit goes into standby automatically when detect the abnormal condition of thermal detection, dc voltage detection or current detection. (e.g. VSX-831 block diagram below)
BACLA-2020
BAAF-1979
BAETC-1980
BAPS-2016
BAPRC-2034
MPU
Q7009
VOLTAGE
DRIVE
RELAY
RL6501
(FL/FR)
Power amp.
(Front L)
Q6001
Q6021
SPRLF
THERMAL
DETECT
Q6800
POWER
TRANS.
T901
CURRENT
DETECT
Power
Supply
AC IN
PON_MAIN PON_MAIN
Relay
RL9001
FUSE
F9002 SEC-1
(HIGH)
SEC-1
(LOW) FUSE
F6901
F6902
RELAY
RL6911
RL6912
Power
Supply
(H)
(L)
(H)
or
(L)
SEC1H
IPRO
DC
DETECT
VPRO
IPROTECT
VPROTECT
VOLTAGE
DETECT
VOLH
VOLH
THERMAL
P6800A
P9002
P8002
P2800B
SUB
TRANS. Power Supply for STANDBY VPRO: DC voltage detection
IPRO: Current detection
BATRM-2023
SPEAKER - OUT

Amp Diag Mode after Abnormal Conditions
5432
16
D
C
A
B
D
C
A
B
5432
16
COMMON
Self-diagnostics
This function is for avoiding the rupture of electrolytic capacitors with amplifier circuit
failure during power-ON.
Operation of Self-diagnostic
Self-diagnostic will start at the timing of next power on, after goes to the protect mode
by Current detection or DC voltage detection.
Only On/Standby key could work in this mode. Also remote control does not work.
However, the CLEAR operation is enabled.
During Self-diagnostic, the power supply for amplifier circuit become lowvoltage
state(SEC1-LOW), and the speaker relay will be turned off. Then, MPU will check each
amplifier circuits Internally by entering the test signal (20 kHz,-20 dBFSsinewave)to
each channel from DSP.
MPU will judge the amplifier circuit is good or not from VOLH value.
The normal range of VOLH value is 0.04 V < VOLH < 0.20 V.
If VOLH value is in the out of this range, it will be judged as NG (No good).
No problem found
When protected by current detection, and no problem found, "CHECK SP WIRE“ will be displayed.
In this State, Only the On/Standby key is effective. And if do not anything for 3 minutes, unit goes
into standby automatically.
When protected by a DC voltage detection, and no problem found, unit goes into normal
operation.
Problem found
When judged as there is a problem on any channel, the information of channel that has a problem
will be displayed as in the right figure.
In this State, Only the On/Standby key is effective. Also remote control does not work. If do not
anything for 3 minutes, unit goes into standby automatically. This state will keep also after unit
turn on/off, or AC unplugged.
the power supply for amplifier circuit become low voltage state(SEC1-LOW), and the speaker
relay will be turned off.
Display of during Self-diagnostics
AMP D i a g Mode
2 Line FL tube type
“Mode” This part display the channel which is currently checked. (E.g. "[FL]", etc.)
AMP D i a g Mode
1 Line FL tube type
Display of when problem found
NG CH :
LCRSLSRBLBR
NG: LCRSLSRBLBR
2 Line FL tube type
1 Line FL tube type
L
C
R
SL
SR
BL
BR
Front L channel
Center channel
Front R channel
Surround L channel
Surround R channel
Surround back R channel
Surround back L channel

Amp Diag Mode after Abnormal Conditions
5432
16
D
C
A
B
D
C
A
B
5432
16
COMMON
Repair Process and How to Confirm
Confirmation of the protect cause
While NG channel is displayed, You can confirm the protect cause by following the step below.
1. Press the Enter button
2. The protect cause are displayed for 5 seconds.
Please check the around of those amplifier circuit and repair it.
Clear of NG CH information
After repair, you can clear NG CH information by following the steps below.
1. Press the On/Standby key while pressing the Enter key.
2. Display as in the right figure appears.
3. Unit goes into Standby automatically after 5 seconds.
Self-diagnostic will start again at the timing of next power on.
By this, You can verify whether repair was properly or not.
If problem found after repair, please re-check the around of its circuit.
Cancel of Self-diagnostic
You can cancel this mode by clear operation (press Standby key while pressing AUTO/DIRECT
key). After cancel this mode, receiver will be started as normal operation.
Manual Execution of Self-diagnostic
1. [DIMMER] + [ON/STANDBY] x 2
Main Firmware Version will appear on the main unit’s display.
2. [HOME MENU]
Service information will appear on the main unit’s display
3. [ENTER]
Display as in the right figure appears.
4. [STANDBY/ON]
Unit will go into standby.
5. [STANDBY/ON]
Unit will turn on. Then self-diagnostic will start automatically.
Protected by current detection
Protected by DC Voltage detection
DET . PROTECT : I
DET . PROTECT :V
NG CH CLEAR
Clear of NG CH information
AMPD I AG TESTON
Manual Execution of Self-diagnostic

Model and Destination
543
2
1 6
D
C
A
B
D
C
A
B
543
2
1 6
VSX-831/1131
VSX-LX101/301
How to check model and destination
Step1 :
Set VOL Level = -42
Step2 :
[ List-D(※) ] + [ ON/STANDBY ] → [ DIMMER ] → [ List-B(※) ] x 5
※) Refer to Model List.
Model Name Destination FL Display
VSX-831 DC 8 3 1
D C 2 0 0 0
VSX-831 xx 8 3 1
x x 2 0 1 0
VSX-831 xA 8 3 1
x A 2 0 4 0
VSX-831 xR 8 3 1
x R 2 0 5 0
VSX-831 JJ 8 3 1
J J 2 0 2 0
VSX-LX101 DC L X 1 0 1
D C 3 0 0 0
VSX-LX101 DF L X 1 0 1
D F 3 0 3 0
VSX-1131 DC 1 1 3 1
D C 2 1 0 0
VSX-1131 DF 1 1 3 1
D F 2 1 3 0
VSX-1131 xx 1 1 3 1
x x 2 1 1 0
VSX-1131 xA 1 1 3 1
x A 2 1 4 0
VSX-1131 xR 1 1 3 1
x R 2 1 5 0
VSX-LX301 DC L X 3 0 1
D C 3 1 0 0
This list is MCU internal value,
And The destination code of this list,
it is different from Wi-Fi 5GHz setting Destination Code

WiFi 5GHz Setting
543
2
1 6
D
C
A
B
D
C
A
B
543
2
1 6
VSX-831/1131
VSX-LX101/301
Wireless LAN 5GHz Setting
IMPORTANT!!
Back Ground:
It is totally different from Radio Law at the each country on 5GHz band.
It means it is totally different from enabled Channel of 5GHz band at the each country.
We define the “Country Code” for 5GHz band.
You must set up the appropriate country code to the product.
Example;
Case1:
When you use the “P” destination products and bring move to Russia or Israel,
If you did not setup change country code and use in Russia and Israel,
You will be on the illegal Radio Law in Russia and Israel.
Case2;
When you use “C” or “D” destination product bring move to Japan or Taiwan,
If you did not setup change country code and use in Japan and Taiwan,
You will be on the illegal Radio Law in Japan and Taiwan.
Service Parts information:
The default country code is set on “Processing Circuit Board(PRC board)”.
You must make sure and set up the “Country Code“ when you replace the processing
circuit pc board ( i.e. BAPRC-2034 ).
Otherwise You and your customer should be on the illegal Radio Law and
IT HAS POSSIBILITY TO HAVE A RISK OF
PUNISHMENT FROM EACH COUNTRY GOVERNMENT.
If you did not make sure country code and no setup code and face any trouble,
We does not have any responsibility.
For setting up the Country Code,
Please ask the procedure of changing country code
to your distributer or our sales.
It is no described the procedure of changing Country Code on this Service Manual
If you have any trouble of unclear procedure for update country code,
Please contact our sales department.
PRC Board Default Value of Country Code
The PRC board is already set default Country Code by the representative destination.
To confirm the default country code, Please refer to the "How to read PRC Board part
number and Default value of Country Code"section.
Figure Country List (need to set up)