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TX-NR828
Ref. No. 4434
052013
AV RECEIVER
MODEL TX-NR828(B)/(S)
European and Australian models ---> "RT/PTY/TP"
North American ---> "DIMMER"
RC-840M
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
TX-NR828
SERVICE PROCEDURE-1
1. Replacing the fuses
This symbol located near the fuse indicates that the
fuse used is slow operating type, For continued protection against
fire hazard, replace with same type fuse, For fuse rating, refer to
[NOTE]
the marking adjacent to the symbol. : 120V,Canadian model
: 220-240V,CE(European) country model
Ce symbole indique que le fusible utilise est e lent. : 220-240V,Australian model
Pour une protection permanente, n'utiliser que des fusibles de meme : 220-240V,UK model
type. Ce demier est indique la qu le present symbol est apposre. : 220/230-240V,Chinese model
REF NO. PART NAME DESCRIPTION PART NO. REMARKS
F6401, 6402 FUSE 15A-TUL-250V 252303GR !
F6401, 6402 or FUSE 15A-UL/T-314 252197GR !
F9002 FUSE 12A-TUL-250V 252301GR !
F9002 or FUSE 12A-UL/T-314 252196GR !
F9002 FUSE 6.3A-SE-EAK 252079GR !
F9002 or FUSE 6.3A-SE-TL250V 252279GR !
F9001 FUSE 1A-SEUL-TL250V 252397T !
F201 FUSE 4A-SEUL-TL250V 252392T !
2. Safety check out
(U.S.A. model only)
After correcting the original service problem, perform the following safety check before releasing the unit to the customer.
Leakage current Check
Measure the leakage current to a known earth ground (water pipe or conduct etc.) by connecting a leakage current
tester between the earth ground and exposed metal parts of the unit (input/output ground terminals,
screw heads or metal overlays etc.).
Plug the power supply cord directly into a 120Vac 60Hz wall socket and turn ON/STANDBY button on.
Any current measured must not exceed 0.5mA.
3. To initialize the unit
Press ON/STANDBY button while pressing down CBL/SAT button
when the unit is POWER ON, then the FL displays "CLEAR", and turn to STAND-BY. Remove power cord from power line.
4. To check version of each Firmware
a. Push ON/STANDBY key while pushing down DISPLAY key to display MMPU(Main Microprocessor) version.
e.g.
1.01/13515AE8 Version of MMPU displayed only for 3 seconds.
b. In display version, +(TONE) key and -(TONE) key are pushed to display another F/W version.
+(TONE)
-(TONE)
1.01/13515AE8 MMPU
(Main Microprocessor)
-(TONE) +(TONE)
1.07/13514AEA DSP1st/ NET
-(TONE) +(TONE)
1.02/13325AE Video Microprocessor Version displayed
+(TONE) only for 3 seconds.
-(TONE)
1.01/13322AEO VSP
(Video signal processor )
-(TONE) +(TONE)
1.00/12Z18AE OSD
(On screen display)
TX-NR828
SERVICE PROCEDURE-2
5. Notes on repairs (Power supply board)
Some parts on BAPS-1353 may remain high voltages even after the power cord is disconnected from AC power source.
Before starting repair and any other work , please discharge C9002 by connecting resistors between its terminals.
See the figure below(recommended resistor spec: 5 k ohms/ 10W)
It is dangerous to touch the "HIGH VOLTAGE PRIMARY" area surrounded by white lines without discharging.
U0063
POWER SUPPLY(PRI) PC BOARD ASS'Y
BAPS-1353
HIGH VOLTAGE PRIMARY
Top
Resistor
TX-NR828/ 929/ DTR-50.5/ 60.5/ DHC-60.5
DEBUG MODE-1
AUDIO DEBUG MODE-1/4
AUDIO DEBUG MODE (Display mode of the audio information)
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.g.
Main: The version number of microprocessor is displayed
1.01/13515AE8 only for 3 seconds.
2. Press +(TONE) button while the version number of microprocessor is displayed.
e.g.
DSP 1st/NET: The version number of DSP is displayed
1.07/13514AEA only for 3 seconds.
3. Press DISPLAY button while the version number of DSP is displayed.
e.g. Audio dubug mode
0A0002 : : 00
ANA: o: NON: : Step-1
4. Press DISPLAY button.
e.g.
1: ANA 048k048k Step-2
2/ 0. 0: 2. 0: 3/4
10. Press DISPLAY button.
5. Press DISPLAY button. e.g. Step-8
LB : 0 0
e.g. RB : 0 0
2: o: PCM : PCM Step-3
00: x: F: OFF 11. Press DISPLAY button.
e.g. Step-9
6. Press DISPLAY button. LH : 0 0
RH : 0 0
e.g. SP00F * 00F00409 Step-4
48 48256STB 12. Press DISPLAY button.
e.g.
7. Press DISPLAY button. LW : 0 0 Step-10
e.g. RW : 0 0
L : 0 0 Step-5
R : 0 0 13. Press DISPLAY button.
e.g. Step-11
8. Press DISPLAY button. SW : 0 0
e.g.
C : 0 0 Step-6 SW2 : 0 0
14. Press DISPLAY button.
9. Press DISPLAY button.
Exit
e.g. LS : 0 0 Step-7
RS : 0 0
TX-NR828/ 929/ DTR-50.5/ 60.5/ DHC-60.5
DEBUG MODE-2
AUDIO DEBUG MODE-2/4
Step-1 FL Display
1 1 2 2 3 3 : A A : B B
C C C : D : E E E : F : G
1 st_srd.lmd 2 st_srd.extdec A Muting port
C_LM_LAST 0x01 C_EXTDEC_OFF 0x00
D DIGMUTE port
C_LM_PURE 0x02 C_EXTDEC_20_PLII 0x01
C_LM_DIRECT 0x03 C_EXTDEC_20_PLIIX 0x02 A AMUTE port
C_LM_STEREO 0x04 C_EXTDEC_20_PLIIZ 0x03
C_LM_MONO 0x05 C_EXTDEC_20_NEO6 0x04
C_LM_SURR 0x20 C_EXTDEC_51_MTR 0x05 B Factor of muting
C_LM_THX_MUSIC 0x50 C_EXTDEC_51_DSC 0x06
C_LM_THX_GAME 0x70 C_EXTDEC_51_NEO6 0x07 bit_1 SELMUTE
C_LM_THX_CINEMA 0x90 C_EXTDEC_51_EX 0x08
C_LM_THX_U2GAME 0xA0 C_EXTDEC_51_PLIIX 0x09 bit_2 POWMUTE
C_LM_THX_U2MUSIC 0xA8 C_EXTDEC_51_PLIIZ 0x0A bit_3 PROTECTMUTE
C_LM_THX_U2CINEMA 0xB0 C_EXTDEC_9624 0x0B
C_LM_AUDYSSEY 0xD0 C_EXTDEC_9624_MTR 0x0C bit_4 AUDIOOUTMUTE
C_LM_DTSSS 0x48 C_EXTDEC_71MULTI 0x0E
bit_5 AUDIOMUTE
C_LM_ORCHESTRA 0x06 C_EXTDEC_20_NEURAL 0x0F
C_LM_UNPLUGGED 0x07 C_EXTDEC_51_NEURAL 0x10
C_LM_STUDIOMIX 0x08
C_LM_TVLOGIC 0x09 3 st_srd.extdecmd C Input
C_LM_ALLCHST 0x0A
C_LM_FULLMONO 0x0B C_EXTDECMD_OFF 0x00 ANA Analog
C_LM_TD 0x0C C_EXTDECMD_10 0x01
COX Caxal
C_LM_TESTTONE 0xF1 C_EXTDECMD_20 0x02
C_LM_TESTTHR 0xF2 C_EXTDECMD_MOVIE 0x03 OPT Optical
C_LM_TESTAUTO 0xF3 C_EXTDECMD_MUSIC 0x04
C_EXTDECMD_GAME 0x05 HDM HDMI
C_LM_ASC 0xF4
C_LM_FLASH 0xF5 C_EXTDECMD_HEIGHT 0x06 ARC ARC
C_LM_DEBUGMODE 0xF6 C_EXTDECMD_WIDE 0x07
C_LM_FLASH2 0xF7
C_LM_FLASH3 0xF8
C_LM_FLASH4 0xF9
D DSP Detect
C_LM_FLASH_CHECK 0xFA DSP Detect OK
C_LM_RPG 0x0D
C_LM_ACTION 0x0E