Onkyo TXNR 636 Service Manual

Page 1

ONKYO® SERVICE MANUAL

AV RECEIVER
MODEL TX-NR636(B)/(S)

Ref. No. 4459
042014

Black and Silver models

B MDC, B MDF

120V AC, 60HZ

B MMR

220-240V AC, 50/6OHZ

B MMP, B MMB, B MMA. S MMP

220-240V AC, 50/6OH7,

SAFETY-RELATED COM PON ENT
WARNI N G! !

COMPONENTS IDENTIFIED BY MARK A ()N TIIE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL,

MAKE LEAKAGE-CURRENT 0R RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE T0 TIIE CUSTOMER.

Onkyo Corporation
Service Department

Page 2

TX-N R535I636I737I838IDTR-30.6/40.6/50.6IHT-R593I693l993IHT-RC660

DEBUG MODE-1
AUDIO DEBUG MODE-1/5

The operations of DSP and DIR etc are able to checked by the information displayed on FL in this debug mode.
This information will help to analysing digital audio no sound trouble

To set in Debug mode
1. Press twice the ON] STANDBY key while pressing the DISPLAY key

9.9. i The version number of Microprocessor is displayed
M1'03/14307ALN only for3seconds.

2. Press 1- (TONE) button while the version number of microprocessor is displayed

e.g. _ The version number of DSP is displayed
N102/14210ALA only for3seconds.

3, Press DISPLAY button while the version number of DSP is displayed.

6'9 0A0002: :00 Step4
4. Proceed to the next step by pressing the DISPLAY key.
ANA:0:NON:C: Step-2
4v
1:ANA O48k048k Step-3
4v
AUDIO dubug mode
2/0. 0: 2. 0:3/4 SE94 The status of DSP and DIR etc
vb will be displayed.

2:0:PCM :PCM SteP-5

4v

00:x:F:OFF Step-5

4v

SPO0F*00F00409 Stew

4v

48 48256STB Step-B
4v

L :0000 0000

1

SW [0000 0000
4v

Exit

Page 12

TX-NR636I 737/ 838/ HT-RC660I HT-R993I DTR-30.6/ 40.6/ 50.6

OPERATION CHECK-1

NOTATION ABOUT ENTERING TEST MODE BY PRESSING BUTTON
In this procedure. the following notations are used to simplify explanation of how to press button.
9.g.-1 [TV/CD] + [ON/STANDBY] -> [BDIDVD]
This means "While holding down TV/CD button, press ON/STANDBY button then release both buttons and then press
BD/DVD button".
e.g.-2 [DISPLAY] + [ON/STANDBY] 2 -> [DIMMER]

This means "While holding down DISPLAY button. press ON/STANDBY button twice then release both buttons and then press
DIMMER button".

INITIAL SETTING FOR SHIPPING

Initialization of memories.
Do the following operation.

[CBLISAT] + [ON/STANDBY]
Unplug the power cord from AVR after the FL tube displays "Clear" and AVR goes standby.
CONFIRMATION OF FNV VERSION
Do the following operation.

1. [DISPLAY] + [ON/STANDBY]
to display MMPU version.
9.9. M1,03/14307ALN

2. rrONE+1
to display another FNV version.
eg. [ONKYO] [INTEGRA]
M1,04/l4422AE Main M1.04/*14422AE Main
N1 .03/1V4324AEA DSP N1 03443241454 DSP
D1.00/1V4218AEA DSPZ 01.00/14218AEA DSPZ
V1. 03/1'4325AE HDMI/VIDEO V1 . 03/14325AE HDMl/VIDEO
K1. 00/1V4220AEO VSP K1 , 00/14220AE/ VSP
T1.01/14311A VSP2 HDCPTX T1.01/1*4311A VSP2 HDCPTX
V
R100/14303A VSP2 HDCPRX R1.00/l4303A VSP2 HDCPRX
V
01.00/14219AE OSD(Excluding TX-NR636) O1 00/v14219AE OSD(Excluding DTR-30.6)
H1. 30. 72.1 Sub3 H DBase-T(Excluding DTR~30.6)

It cannot enter a test mode immediately after power supply ON. please press the Setup key.

CONFIRMATION OF MAIN CHECKSUM
MAIN Checksum can be confirmed the following operation.
[DISPLAY] + [o NISTANDBY] * 2 -) [MEMORY]

CONFIRMATION OF OUTPUT VOLTAGE AND THERMAL SENSOR

Temperature and output voltage can be confirmed the following operation.
[DISPLAY] + [ON/STANDBY] * 2 -. [TONEI

99 001 042 F.X S.'H

QJHE

Voltage Temperature FAN speed Amplifier power

of VOLH port of thermal sensor x: Stop Supply voltage condition
L: Low speed H : High-B
H: High speed L : Low-B

Page 13

TX-NR636/ 737/ 838/ HT-RC660/ HT-R993/ DTR- 6/ 40.6/ 50.6

OPERATION CHECK-2

CONFIRMATION OF MODEL NAME AND DESTINATION

Model name and destination can be confirmed the following operation.
rrwcn] + [ON/STANDBY] -) [DIMNER](RTIPTY/TP) -» ['I'ONEI *4
e.g. A:Va|ue ofAD port of BAND
N R 5 3 5 DX 2 0 0 0 B:Value ofADportolelTI
_ > TTT T C:Value of AD port of INIT2
FL DIS Name Destination A B C D D:Vatue of AD port ole|T3

Model Name Destination Number Writing Data FL Display

DTR-40.6 xx 8240 DTR-40.6 xx

DTR-50.6 8440 DTR-50.6 xx

TEST MODE FOR OPERATION

[Caution]Don't change setting (TONE,SETUP.etc) from initial setting before move to test mode.
Do the following operation.
1. Set the following VOL level.
VOL level Model
25 TX-NR636, DTR-30.6
30 TX-NR737. TX-NR838. DTR-40.5( DTR-50.6

2. [TV/CD] + [ON/STANDBY]

TE 8 T-
3. Press the following button. while "TEST - " is displayed, then eadn test mode is set.
Button Test Mode Button Test Mode Button Test Mode
[ED/DVD] 1-00 [GAME] 4-00 [NEMORY] KEY TEST
[CBL/SAT] 2-00 [PG] 5-00 [TUNING MODEI IDLING TIMER / Wi-Fi dneok
[STBIDVR] 3-00 [AUX] 6-00 [DIMMER](RT/PTY/TP) FL TEST
[ENTER] FIRMWARE COMBINATION CHECK

In the test mode, (TONE)- button is TEST MODE DOWN and (TONE)+ button is TEST MODE UP.
e-Q- TEST 1-00 a TEST 1-01 a TEST 1-02 - - - - TEST 2-00
IDLING TIMER (TEST 1-01)
This mode is used for aging for idling.
Once the following test mode is set, idling timer mode works.
Idling timer mode includes the following functions

Test mode TEST 1-01

Function Timer Refer to CONFIRMATION OF VOLTAGE-DETECTION PROTECTORS (next page).
Voltage-detection protector check Refer to CONFIRMATION OF UPDATE ROUTE (next page).
FNV update route test Refer to CONFIRMATION OF Wi-Fi CONNECTION (next page).
Wi-Fi connection check Refer to CONFIRMATION OF ZONEZ DAC ROUTE (next page).

22 DAC route check by playing USB flash device
WAV file L+Rch and Ron repetition (1 see each)

Store only one file (the above mentioned) into the USBflash device to avoid making trouble.

Once the above test mode is set. AVR's status changes to idling timer mode and voltage-detection protector check automatically begins.
|f voltage

Even if one channel of voltage-detection protector check is NG, Wi-Fi connection check doesn't begin.

Page 22

T -NR636I DTR-30.6I HT-RC660I HT-R993

ADJUSTMENT PROCEDURE

ADJUSTMENT OF IDLING CURRENT

Applied to the following model.
|(Model) | TX-NR636/ DTR-30.6/ HT-RCBGO/ HT-R993

Proced ure
a. Pre-adjustment
Set the following registers to minimum position before POWER ON.

Set the voltages at the following terminals to the following voltage by adjusting the following registers. underthe condition of
no input and no load. immediately after POWER ON.

Channel L/C/R SL/SR/SBL/SBR
Terminals ~ ~
R isters R5440~5442 R5443~5446
b. Aging
Heat run during the following time.

0. Final adjustment
Re-adjust by the following procedure after heat running for the above mentioned time.

L/C/R
Below 9mV 9mV
Between 9~11mV Do not adjust.
Over 1 1 mV 1 1 mV
SL/SR/SBL(SVV)/SBR
Below 6mV 5mV
Between 6~8mv Do not adjust.
Over 8mV 8mV

Adjustment point
Equip series 1/4W100-ohm resisters near the terminal respectively in each pole of the jig used for the above mentioned terminals.
. LS . .
o EACH-1575 R5E42g RE441 gR9440 O C t-
Top R5446 R5445 R5444 R5443 C R L I onnec IOI'I
El

L_|____=!§

nnnnnn

T I SBR SBL SR SL

090
3.35M;
3 8
E g
3
y)

' DC Volt meter

j:
i
[g
E
Q

l l_l

Test point """" -'

P6086 P6085 P6084 P6083 P6082 P6081 P6080
El El El El El El El

-_EJ ....... -EJ

SBR SBL SR SL '0 R LEE1

1 1
[lo 0

BAAF-1511

Front 3]