Service Manuals, User Guides, Schematic Diagrams or docs for : ONKYO Audio HT-R640 hfe_onkyo_ht-r640_service

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hfe_onkyo_ht-r640_service


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                                                                                                                                   HT-R640

                                                                                                                  Ref. No. 3951
                                                                                                                        082006
                  SERVICE MANUAL

                  AV RECEIVER

             MODEL HT-R640                                     ON/STANDBY                             REMOTE MODE

                                                                                                      RECEIVER
                                                                                                       TAPE
                                                                                                                       DVD

                                                                  INPUT SELECTOR                                      M D/CDR

                                                                        1                2               3               CD
                                                                                                                        HDD
                                                                        V1              V2              V3


                                                                        4                5               6               TV

                                                                        V4           MULTI CH          DVD


                                                                        7                8               9             VCR

                                                                       TAPE          TUNER              CD
                                                                                                                       CABLE
                                                                                10               11              12
                                                                       +10               0              CLR             SAT
                                                               D TUN                             ENT
                                                                       --/---        DIMMER            SLEEP




                                                                                                        CH
                                                                                TV     VOL              DISC            VOL
                                                                                                       ALBUM

                                                                       INPUT

                                                                  GUIDE                                               PREVIOUS
                                                                TOP MENU                                                MENU




                                                                                                                      MUTING


                                                                                             ENTER

                                                                 PLAYLIST/CAT                                    PLAYLIST/CAT




                                                                 RETURN                                                SETUP




                                                                                     LISTENING MODE
                                                                   STEREO             SURROUND

                                                                   AUDIO SUBTITLE RANDOM REPEAT
                                                                   TEST TONE          CH SEL          LEVEL-           LEVEL+

                                                                                 PLAY MODE
                                                                   DISPLAY            AUDYSSEY        L NIGHT          CINE FLTR
                                                                                       VCR             DVD              HDD




                                                     HT-R640
                                                                                          RC-668M




                                                               RC-668M(MDD)
                                                               RC-669M(MPP)

HT-R640 Black, Silver models
B MDD                            120V AC, 60Hz
S MPP                            230-240V AC, 50Hz




        SAFETY-RELATED COMPONENT
        WARNING!!
        COMPONENTS IDENTIFIED BY MARK      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.
                                                                                                                              HT-R640

SERVICE PROCEDURE
1. Replacing the fuses

                   This symbol located near the fuse indicates that the
   fuse used is show operating type, For continued protection against
   fire hazard, replace with same type fuse, For fuse rating, refer to
   the marking adjacent to the symbol.

                 Ce symbole indique que le fusible utilise est e lent.
   Pour une protection permanente, n'utiliser que des fusibles de meme
   type. Ce demier est indique la qu le present symbol est apposre.

     
     
: HT-R640 USA model : HT-R640 European model REF NO. PART NAME DESCRIPTION PART NO. REMARKS F901 FUSE 10A-UL/T-233 252330GR !,
F901 or FUSE 10A-T/UL-ST2 252333GR !,
F901 FUSE 5A-SE-EAK 252078GR !, F901 or FUSE 5A-SE-TL250V 252278GR !, F903 FUSE 5A-UL/T-233 252326GR !,
F903 or FUSE 5A-T/UL-ST2 252258GR !,
F903 FUSE 2.5A-SE-EAK 252075GR !, F903 or FUSE 2.5A-SE-TL250V 252275GR !, F910 FUSE 5A-UL/T-233 252326GR ! F910 or FUSE 5A-T/UL-ST2 252258GR ! F6901 FUSE 12A-TUL-250V 252301GR ! F6902 FUSE 12A-TUL-250V 252301GR ! 2. To initialize the unit 1. Press and hold down the VIDEO 1/VCR 1 button, then press the STANDBY/ON button when the unit is Power on. 2. After " Clea r " is displayed, the preset memory and each mode stored in the memory are initialized and will return to the factory settings. 3. To check the version of microprocessor Main microprocessor Q701 only. 1. Press and hold down the DISPLAY button , then press the STANDBY/ON button when the unit is Power on. The version is displayed on FL display for 3 seconds. Ex. Ma in1.0 1 /05305A 2. Press the STANDBY/ON button to Power off. 4. Memory Backup The AV receiver uses a battery-less memory backup system in order to retain radio presets and other settings when it's unplugged or in the case of a power failure. Although no batteries are required, the AV receiver must be plugged into an AC outlet in order to charge the backup system. Once it has been charged, the AV receiver will retain the settings for several weeks, although this depends on the environment and will be shorter in humid climates. HT-R640 OPERATION CHECK-1 SPEAKER PROTECT-1 (DC VOLTAGE DETECTION) [When] 1. Exchange power transistors (Q6050 - Q6054, Q6060 - Q6064). 2. Exchange amplifier PC board ass'y (NAAF-8911). [Procedure] No load. No input. 1. Press and hold down the CD button, then press the STANDBY/ON button while the unit is Power ON. " Test - _ " is displayed only for 5 seconds. Test - _ Blinks 2. Press the VIDEO 3 button, while the characters of " Test - _ " are displayed. The unit will be in the state of " Test-4-00 ". Test - 4 -00 3. Repeatedly press TONE+ button until the characters of " Test-4-21 " are displayed. Test - 4 -21 Check whether the operation starts and continues automatically as follows. Test - 4 -21 Front L ch Check P rote ct OK T e s t - 4 -2 5 Surround R ch P ro t e c t O K Check Test - 4 -22 Front R ch Check P rote ct OK P ro t e c t Test - 4 -23 Center ch Check P rote ct OK Test - 4 -24 Surround L ch Check P rote ct OK If all channels are OK, the characters of " Test - 4 - 35 " are displayed. Test - 4 -35 4. Press the STANDBY/ON button. Turn off Clear HT-R640 OPERATION CHECK-2 SPEAKER PROTECT-2 (CURRENT DETECTION) [When] 1. Exchange power transistors (Q6050 - Q6054 Q6060 - Q6064. 2. Exchange amplifier PC board ass'y (NAAF-8911). [Procedure] No input. Do not check two or more channels at the same time. Do not connect a dummy load to speaker terminal longer than 2 seconds. 1. Press and hold down the CD button, then press the STANDBY/ON button while the unit is Power ON. " Test - _ " is displayed only for 5 seconds. Te st - _ Blinks 2. Press the VIDEO 3 button, while " Test - _ " is displayed. The unit will be in the state of " Test-4-00 ". Te st - 4-0 0 3. Repeatedly press TONE + button until " Test-4-35 " is displayed. Te st - 4-3 5 4. Connect the dummy load of 3 ohms to the Front L ch speaker terminal. At this time, confirm that the speaker relay is not turned off. Te st - 4-3 5 5. Connect the dummy load of 1 ohm to the Front L ch speaker terminal. At this time, confirm that the speaker relay is turned off and" Protect " is displayed. P ro tect Disconnect the dummy load immediately after checking the display of " Protect ". Te st - 4-3 5 6. Check other channels according to the same procedure as 4 and 5. 7. Press the STANDBY/ON button. Turn off Clear HT-R640 OPERATION CHECK-3 CONTROL OF POWER SUPPLY (OUTPUT SENSOR AND THERMAL SENSOR) [When] 1. Exchange power transistors (Q6050 - Q6056, Q6060 - Q6066). 2. Exchange power amplifier PC board ass'y (NAAF-8911). 3. Exchange thermal sensor PC board ass'y (NAETC-8913). [Procedure] No output. No input. Output sensor 1. Press and hold down the CD button, then press the STANDBY/ON button while the unit is Power ON. " Test - _ " is displayed only for 5 seconds. Te st - _ Blinks 2. Press the VIDEO 3 button while " Test - _ " is displayed. The unit will be in the state of " Test-4-00 ". Te st - 4-0 0 3. Repeatedly press TONE + button until " Test-4-37 " is displayed. Te st - 4-3 7 4. At this time, confirm that the red characters of " FM STEREO " is displayed. And, check relay RL6901 and RL6902 are turned off in 2 or 3 seconds. FM STEREO Te st - 4-3 7 5. Press the STANDBY/ON button. Turn off Clear Thermal sensor 1. Press and hold down the DISPLAY button, then press the STANDBY button when the unit is power ON. " V er . 0. 50 /0 5 1 3 1 a " is displayed only for 2 seconds. V er. 0 .50/0 5 1 3 1 a 2. Press the TONE button while " Ver.0.50/05131a " is displayed. T: 2 5 C/ 7 7 F 3. Confirm that the displayed temperature is within +/-20 degree C from the ambient temperatures. 4. Press STANDBY/ON button. Turn off Clear HT-R640 OPERATION CHECK-4(1/2) DSP DEBUG MODE The operation of DSP is able to checked by the information displayed on FL in this debug mode. This information will help to pursue the cause of trouble. To set in DSP debug mode 1. Press and hold down the DISPLAY button, then press the STANDBY button while the unit is power ON. The version number of microprocessor is displayed only for 2 seconds. V er. 0 .50/0 5 1 3 1 a 1. Press the TONE+ button within 2 seconds above, the version number of DSP is displayed. DS P :0 6 4 2 1 A 2. Press the DISPLAY button while " DSP :06421A" is displayed. The status of DSP and DIR will be displayed. E 1A 48K 0N/OF F P o O To exit Press STANDBY/ON button. Content of display 1 2 3 4 5 6 7 8 9 10 11 -------------------------------- DIR ------------------------------------ ------------------ DSP -------------------- 1 UNLOCK 4 Sampling Frequency 7 DSP Port E = UNLOCK and Emphasis 0 = NIC (Normal state) = LOCK 32K = 32 kHz without Emphasis 1 = DEC 44K = 44.1 kHz without Emphasis 2 = BUSY (Abnormal state) 2 Digital Selector 48K = 48kHz without Emphasis 3 = EXEC WAIT 0 = None 64K = 64 kHz 8 DSP Sequence 1 = OPT 3 2 = OPT 2 88K = 88.2 kHz 04 = Boot 3 = OPT 1 96K = 96 kHz 11 = Restart 4 = COAX 1 176 = 176.4 kHz FF = Free 5 = COAX 2 192 = 192 kHz 32e = 32 kHz with Emphasis 9 DSP Detect Format 6 = HDMI 44e = 44.1 kHz with Emphasis P = PCM (Analog) 7 = FRONT 48e = 48 kHz with Emphasis D = Dolby Digital d = DTS 3 DIR Status 5 CODEC CLOCK MODE A = AAC D = Digital N = Normal ? = UNKNOWN A = Analog U = Up Sampling M= Multich H = High Sampling (Double Rate) 10 DSP Decode P = Multich PCM D = Down Sampling o = Decode OK p = PCM Fixed Q = Quad Rate x = Decode NG d = DTS Fixed 6 DIR Detect Type ------- Main Micro Processor -------- 0 = Analog 1 = PCM 11 Mute 2 = Not PCM 0 = Selector IC(Q5501) 3 = Data 1 4 = DTS CD (Not used) 2 = DSP(Q201) 5 = Multich 3 = DIR(Q301) 6 = Not Decided HT-R640 OPERATION CHECK-4(2/2) DSP DEBUG MODE Trouble Cause Analysis by Debug Mode This debug mode will help in digital audio no sound trouble. Check information on FL display and the related devices or circuits. Digit no. Symptom on display Cause Check on FL 1 "E" is displayed No input signal to DIR Related devices from digital input to Q301 4 Displayed freq. is different No input signal to DIR Related devices from digital input to Q301 from input 6 Displayed format is different No input signal to DIR Related devices from digital input to Q301 from input 8 "04" or "11" do not change ROM or RAM error Q281, Q282 & related devices to "FF" 9 Displayed format is different Input signal to DSP is no good Related devices from Q301 to Q201 from input 10 "x" is displayed Interface between DSP and Related devices from Q701 to Q201 Micro processor is no good 11 This identifies IC which IC outputs error to main Q5501, Q201, Q301 & related devices outputs error micro processor HT-R640 EXPLODED VIEWS-1 A061 x 6 pcs. U21 P901 A097 A044 A102 x 38 pcs. A093 A002 U13 P101 A037 U010 A044 A051 A060 U12 A002 A109 U14 DD Only A002 A002 Refer to A022 in EXPLODED VIEWS-2 A052 U19 A002 P701 x 2 pcs. A053 F6902 F6901 A051 U11 U10 U15 A002 F901 A013 A050 A002 F901C F903C x 4 pcs. A018 x 2 pcs. A002 x 2 pcs. F903 U17 A030 U18 A016 x 7 pcs. U09 U16 x 4 pcs. A040 U05 A031 A044 A042 A001 A028 A050 A062 F910C A033 A045 A016x 2 pcs. U04 T901 A041 A045 A016 A055 x 2 pcs. A073 U03 F910 A050 A016 A112 x 2 pcs. x 4 pcs. A016 A002 A015 x 2 pcs. U01 U02 A065 A035 x 4 pcs. A070 A017 A002 A051 A110 x 2 pcs. x 4 pcs. A002 A081 A066 x 5 pcs. A077 HT-R640 x 4 pcs. A016 A020 A021 U06 A089 x 2 pcs. x 4 pcs. x 3 pcs. HT-R640 EXPLODED VIEWS-2 Q6050B x 4 pcs. A049 x 10 pcs. Q6054 Q6064 Q6053 Q6063 Q6052 Q6062 Q6051 Q6061 Q6050A Q6050 x 2 pcs. Q6060 HT-R640 HT-R640 A B C D E F G H BLOCK DIAGRAM-1 AUDIO SECTION FM/AM TUNER UNIT 40 Q5501 R2S15211FP 5 CH HEADPHONES L 59 POWER MAIN R MAIN L SUB R SUB L 1 XM-RADIO DD ONLY R 60 AMPLIFIER XM ANTENNA 17 UNIT FL L 63 TONE +29dB DAC XM/DT IC AK4384 37 16 LEFT + R 64 FRONT SPEAKERS 36 19 FR +29dB TONE 65 20 RIGHT 74 25k + 66 7 C INVERTING +29dB 35 CENTER SPEAKER 25k FRONT L 61 6 VIDEO 4 IN R 73 25k + 62 INVERTING +29dB L 34 14 LEFT CD 25k 57 R 15 PREOUT SURROUND SPEAKERS 75 SW 2 25k + L 58 +29dB TAPE OUT SUB RIGHT 30 R 12 WOOFER 25k 55 SL 11 L 78 25k + TAPE IN R 56 SR 9 33 25k L 53 VIDEO 3 IN 10 R 77 25k + 54 L 32 4 VIDEO 2 OUT 25k 51 R 76 5 25k L 52 VIDEO 2 IN 31 2 R 25k HP DET 49 CSRL L AMUT 1 FRL 80 VIDEO 1 OUT 25k 3 R 50 29 25k L 47 REC R REC L VIDEO 1 IN 79 R 25k 48 FL 28 MULTI CHANNEL 25k 45 FR INPUT DVD C 46 SW 71 38 SL 72 SR 39 69 70 4 COAX 1 67 FLASH ROM SD RAM COAX 2 RI RI SR SL FR SW FL INTERFACE C 68 4M Bit 16M bit FRONT OPT OPT 1 117 116 OPT 2 LPF LPF LPF LPF LPF LPF 115 Q701 113 M30627FHPGP 16 DSP 22 OPT 3 27 21 35 28 26 23 MAIN MICRO 29 20 34 33 32 36 30 31 37 15 - 14 2ch ADC TMS320DA707 PROCESSOR 13 OPT OUT - 62 63 120 141 139 64 135 137 138 49 43



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