Onkyo TXNR 838 Service Manual

Page 1

ONKYO® SERVICE MANUAL

AV RECEIVER

MODEL TX-N R838(B)/(S)

TX-NR838

Ref. No. 4466
052014

Black and Silver models

B MDC

120V AC, 60Hz

B MMR

220-240V AC, 50/60Hz

B MMP, B MMB, B MMA, S MMP 220-240V AC, 50/60Hz

SAFETY-RELATED COMPONENT
WA R N I N G ! !

COMPONENTS IDENTIFIED BY MARK A ON THE
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 OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.

Onkyo Corporation
Service Department

RC-882M

Page 2

TX-NR535/636/737/838/DTR-30.6/40.6/50.6/HT-R593/693/993/HT-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.

e-Q- 7 The version number of Microprocessor is displayed
M1'03/14307ALN only for 3 seconds

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

e.g. N1.02/14210ALA _ l:§¥::§os:2:|:rdz.er of DSP Is displayed

3. Press DEEP/LAY button while the version number of DSP is displayed.

89 0A0002: :00 Step4
4. Proceed to the next step by pressing the DISPLAY key.
ANA.'0:NON:C: Step-2
4v
1:ANA 048k048k Step-3
4v AUDHO i ii.
2/0. 01 2. 053/4 Step-4 The status of DSP and DIR etc
4' will be displayed.
2:0:PCM :PCM Step-5
4v
00:X:F.'OFF Step-6
4v
SPO0F*00F00409 Step-7
4v
48 482568TB Step-8 i
4v
L :0000 0000
vi
SW :0000 0000
4v
Exit

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IR5085 NONVFLAMMABLE CARBON FILM RESISTOR R25J71.0K 1 415471024T
IR5086 NONVFLAMMABLE CARBON FILM RESISTOR R25J71.0K 1 415471024T
3R5090 CHIP TYPE CARBON RESISTOR RN72K2E7104JE 1 435221044R1
3R5091 CHIP TYPE CARBON RESISTOR RN72K2EA104JE 1 435221044R1
IR5092 CHIP TYPE CARBON RESISTOR RN72K2E»104JE 1 435221044R1
IR5093 CHIP TYPE CARBON RESISTOR RN72K2E-104JE 1 435221 O44R1
3R5094 CHIP TYPE CARBON RESISTOR RN72K2E7104JE 1 435221044R1
3R5095 CHIP TYPE CARBON RESISTOR RN72K2EA104JE 1 435221 O44R1
IR5096 CHIP TYPE CARBON RESISTOR RN72K2E»104JE 1 435221044R1
IR5100 CHIP TYPE CARBON RESISTOR RN72K1J-104JE 1 435031 O44R1
3R5101 CHIP TYPE CARBON RESISTOR RN72K1J104JE 1 435031044R1
3R5102 CHIP TYPE CARBON RESISTOR RN72K1JA104JE 1 435031044R1
IR5103 CHIP TYPE CARBON RESISTOR RN72K1JA104JE 1 435031044R1
IR5104 CHIP TYPE CARBON RESISTOR RN72K1J-104JE 1 435031044R1
3R5105 CHIP TYPE CARBON RESISTOR RN72K1J104JE 1 435031044R1
3R5106 CHIP TYPE CARBON RESISTOR RN72K1JA104JE 1 435031044R1
IR5110 CHIP TYPE CARBON RESISTOR RN72K1J-222JE 1 435032224R1
IR5111 CHIP TYPE CARBON RESISTOR RN72K1J-222JE 1 435032224R1
3R5112 CHIP TYPE CARBON RESISTOR RN72K1J7222JE 1 435032224R1
3R5113 CHIP TYPE CARBON RESISTOR RN72K1J7222JE 1 435032224R1
IR5114 CHIP TYPE CARBON RESISTOR RN72K1J-222JE 1 435032224R1
IR5115 CHIP TYPE CARBON RESISTOR RN72K1J-222JE 1 435032224R1
3R5116 CHIP TYPE CARBON RESISTOR RN72K1J7222JE 1 435032224R1
3R5120 CHIP TYPE CARBON RESISTOR RN72K1J7222JE 1 435032224R1
IR5121 CHIP TYPE CARBON RESISTOR RN72K1J-222JE 1 435032224R1
IR5122 CHIP TYPE CARBON RESISTOR RN72K1J-222JE 1 435032224R1
3R5123 CHIP TYPE CARBON RESISTOR RN72K1J7222JE 1 435032224R1
3R5124 CHIP TYPE CARBON RESISTOR RN72K1J7222JE 1 435032224R1
IR5125 CHIP TYPE CARBON RESISTOR RN72K1J-222JE 1 435032224R1
IR5126 CHIP TYPE CARBON RESISTOR RN72K1J-222JE 1 435032224R1
3R5130 NONVFLAMMABLE CARBON FILM RESISTOR R25J718K 1 415471834T
3R5131 NONVFLAMMABLE CARBON FILM RESISTOR R25J718K 1 415471834T
IR5132 NONVFLAMMABLE CARBON FILM RESISTOR R25J718K 1 415471834T
IR5133 NONVFLAMMABLE CARBON FILM RESISTOR R25J733K 1 415473334T
3R5134 NONVFLAMMABLE CARBON FILM RESISTOR R25J733K 1 415473334T
3R5135 NONVFLAMMABLE CARBON FILM RESISTOR R25J733K 1 415473334T
IR5136 NONVFLAMMABLE CARBON F|LM RESISTOR R25J733K 1 415473334T
IR5140 NONVFLAMMABLE CARBON FILM RESISTOR R25J7820 1 415478214T
3R5141 NONVFLAMMABLE CARBON FILM RESISTOR R25J7820 1 415478214T
3R5142 NONVFLAMMABLE CARBON FILM RESISTOR R25J7820 1 415478214T
IR5143 NONVFLAMMABLE CARBON F|LM RESISTOR R25J782O 1 415478214T
IR5144 NONVFLAMMABLE CARBON FILM RESISTOR R25J7820 1 415478214T
3R5145 NONVFLAMMABLE CARBON FILM RESISTOR R25J7820 1 415478214T
3R5146 NONVFLAMMABLE CARBON FILM RESISTOR R25J7820 1 415478214T
IR5150 NONVFLAMMABLE CARBON F|LM RESISTOR R25J71.0K 1 415471024T
IR5151 NONVFLAMMABLE CARBON FILM RESISTOR R25J71.0K 1 415471024T
3R5152 NONVFLAMMABLE CARBON FILM RESISTOR R25J71.0K 1 415471024T
3R5153 NONVFLAMMABLE CARBON FILM RESISTOR R25J71.0K 1 415471024T
IR5154 NONVFLAMMABLE CARBON F|LM RESISTOR R25J71.0K 1 415471024T
IR5155 NONVFLAMMABLE CARBON FILM RESISTOR R25J71.0K 1 415471024T
3R5156 NONVFLAMMABLE CARBON FILM RESISTOR R25J71.0K 1 415471024T
3R5163 NONVFLAMMABLE CARBON FILM RESISTOR R25J7220 1 415472214T
IR5164 NONVFLAMMABLE CARBON F|LM RESISTOR R25J722O 1 415472214T
IR5165 NONVFLAMMABLE CARBON FILM RESISTOR R25J7220 1 415472214T
3R5166 NONVFLAMMABLE CARBON FILM RESISTOR R25J7220 1 415472214T
3R5170 NONVFLAMMABLE CARBON FILM RESISTOR R25J7820 1 415478214T
IR5171 NONVFLAMMABLE CARBON F|LM RESISTOR R25J782O 1 415478214T
IR5172 NONVFLAMMABLE CARBON FILM RESISTOR R25J7820 1 415478214T
3R5173 NONVFLAMMABLE CARBON FILM RESISTOR R25J7820 1 415478214T
3R5174 NONVFLAMMABLE CARBON FILM RESISTOR R25J7820 1 415478214T
IR5175 NONVFLAMMABLE CARBON F|LM RESISTOR R25J782O 1 415478214T
IR5176 NONVFLAMMABLE CARBON FILM RESISTOR R25J7820 1 415478214T
3R5180 NONVFLAMMABLE CARBON FILM RESISTOR R25J710 1 415471004T
3R5181 NONVFLAMMABLE CARBON FILM RESISTOR R25J710 1 415471004T
IR5182 NONVFLAMMABLE CARBON F|LM RESISTOR R25J710 1 415471004T
IR5183 NONVFLAMMABLE CARBON FILM RESISTOR R25J710 1 415471004T
3R5184 NONVFLAMMABLE CARBON FILM RESISTOR R25J710 1 415471004T