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Service MM8077/ N1B/U1B/K1B Manual 7 Channel Power Amplifier • For purposes of improvement, specifications and design are subject to change without notice. • Please use this service manual with referring to the operating instructions without fail. • Some illustrations using in this service manual are slightly different from the actual set.
CONTENTs ABOUT THIs MANUAL .............3 What you can do with this manual ..........3 Using Adobe Reader (Windows version) ........4 sAFETY PRECAUTIONs ............7 TECHNICAL sPECIFICATIONs ..........8 DIMENsION ................8 DIsAssEMBLY ................9 1. FRONT PANEL ASSY ............10 2. CPU PCB ASS'Y ..............10 3. TRANS ................10 4.
ABOUT THIs MANUAL Read the following information before using the service manual. What you can do with this manual search for a Ref. No. (phrase) Jump to the target of a schematic diagram (Ctrl+shift+F) connector You can use the search function in Acrobat Reader to Click the Ref.
Using Adobe Reader (Windows version) Add notes to this data (sign) Magnify schematic / printed wiring board The Sign function lets you add notes to the data in this diagrams - 1 manual. (Ctrl+space, mouse operation) Save the file once you have finished adding notes. Press Ctrl+space on the keyboard and drag the mouse to select the area you want to view.
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Magnify schematic / printed wiring board Magnify schematic / printed wiring board diagrams - 2 diagrams - 3 (Pan & Zoom function) (Loupe Tool function) The Pan & Zoom function lets you see which part of a The Loupe Tool function lets you magnify a specific magnified diagram is being shown in a separate window.
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Parts for your equipment are generally available to our National Marantz Subsidiary or agent. ORDERING PARTS : Parts can be ordered either by mail or by Fax.. In both cases, the correct part number has to be specified.
sAFETY PRECAUTIONs The following items should be checked for continued protection of the customer and the service technician. LEAKAGE CURRENT CHECK Before returning the set to the customer, be sure to carry out either (1) a leakage current check or (2) a line to chassis resistance check.
DIsAssEMBLY • Disassemble in order of the arrow of the figure of following flow. • In the case of the re-assembling, assemble it in order of the reverse of the following flow. • In the case of the re-assembling, observe "attention of assembling" it. •...
About the photos used for descriptions in the DIsAssEMBLY" section. • The direction from which the photographs used herein were photographed is indicated at "Direction of photograph: ***" at the left of the respective photographs. • Refer to the table below for a description of the direction in which the photos were taken. •...
5. INPUT PCB-2 Proceeding : TOP COVER INPUT PCB-2 → Disconnect the connector wire. CN20 CN21 CN22 CN31 Remove the screws. Direction of photograph: A...
6. INPUT PCB-1 Proceeding : TOP COVER INPUT PCB-2 INPUT PCB-1 → → Disconnect the connector wire. CN70 Remove the screws. Direction of photograph: A 7. POWER PCB AssY Proceeding : TOP COVER INPUT PCB-2 INPUT PCB-1 POWER PCB ASS'Y →...
8. AMP UNIT Proceeding : TOP COVER INPUT PCB-2 INPUT PCB-1 AMP UNIT → → → Remove the screws. View from bottom Remove the screws. Direction of photograph: C...
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Disconnect the connector wires, then remove the screws. CN61 CN62 CN63 CN64 CN67 CN60 CN65 CN66 CN44 Disconnect the connector wire. CN50 CN60 CN61 CN51 CN21 CN20 CN11 CN10 Please refer to "EXPLODED VIEW" for the disassembly method of each PCB included in AMP UNIT.
sPECIAL MODE special mode setting button b Enters the special mode when A button is pressed in normal power state. Mode Button A Contents CPU version displayed. Service mode Service Furthermore,this unit in a condition of the following by pushing the Button A. 1-1 Protection Log display Service Displayed protection history.
1. CPU Version check The firmware version is displayed on LEDs as follows. V1(D407) V2(D406) V3(D405) Version Ver1 Ver2 Ver3 Ver4 Ver5 Ver6 Ver7 1.1. Protection Log display The last time protection log is displayed on LEDs as follows if the Service button is pushed(>5sec) in the Service mode.
2. Cooling FAN active The fan rotates according to the condition of the temperature sensor(IC51,52,53,54) as follows. T :IC51,52,53,54 temperature Fan rotate T < 0°C STOP 0°C ≦ T < 10°C Rotate Low speed 10°C ≦ T Rotate High speed 2.1.
3. sYsTEM ERROR The reason for the error can be presumed from Standby LED display when the error occurs and protection log display. Refer to [1-1.] for the method of confirming protection log. If the AC power supply is turned off, the state of all protection can be released. Protection log display Error Detection...
The following items are required for updating. • Windows PC (OS: Windows2000 or WindowsXP) with Serial port. • RS-232C Dsub-9 pin cable (female to female/straight type) • Update software to CPU. (FlashSta.exe, MM8077_yymmddvv.mot and MM8077_yymmddvv.id in CPU (MM8077) folder) • DATA UPDATE KIT (part no. 90M-SR4500JIG) Use DATA UPDATE KIT to connect PC and CN40 (FFC connector) in rear panel of the unit, when updating CPU Update CPU’s software to internal Flash-ROM...
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Double click the CPU (MM8077) folder. MM8077 MM8077 MM8077 MM8077 CPU(MM8077) CPU(MM8077) Double click the FlashSta.exe. And launch the M16C Flash Start. CPU (MM8077) CPU (MM8077) MM8077... Check the internal flash memory in the Select Program. Choose the COM Port number. And the click OK.
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Click the Refer..(10) Choose the MM8077_yymmddvv.mot. And click Open. NOTE : The yy is two digit of year. The mm is month. The dd is date. The vv is version. CPU (MM8077) MM8077_xxxxxxxx.mot MM8077_xxxxxxxx.mot (11) The FilePath and ID are inputted automatically, and the MCU Type is selected to R8C automatically.
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(12) Click the Setting..(13) Choose the 57600 in the Baud rate. (DO NOT choose the other one.) Choose the 40 in Program_intervals(ms). Click the OK.
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(14) Click the E.P.R..(15) Click the OK. (16) Software is written into the internal Flash-ROM of CPU. The updating of software takes about 20 seconds.
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(17) Click the OK. (18) Click the Exit. (19) Disconnect the mains cord from the unit. (20) Disconnect the RS-232C cable from the unit.
ADJUsTMENT Idling Current Alignment Each of the measurement points are provided with the two test points. Set a digital Voltage meter to DC voltage input, connect the meter to the test points at both contact points. After the setup above, turn on the main switch. Adjust variable resistors (VR20 - VR50) according to the digital voltmeter readings.
TROUBLE sHOOTING 1. POWER 1.1. Power not turn on Power not turn on. When the AC line turned on, does the Is a DC 5V voltage supplied from the ON/STANDBY indicator on the front Confirm +5V regulator(IC31) circuit. STANDBY PCB to the μ-com? panel light? Is the "P_DOWN"...
2. AUDIO 2.1. No audio output No audio output Is the signal input terminal(Bal or IChange the input selector SW to Unbal) and the Input selentor SW correct setting. setting suitable? Confirm ±21V power supply and Is the speaker relay(RY10,11,12,13) control line"SPK ON1,2,3,4"...
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2.2. Power Amp (AMP PCB) No audio output (caused by power amp) Is the power transistor open or short circuit? Replace the power transistor. 2SC2922/2SA1216 Is the emitter resistance of the power transistor open? Replace the emitter resistance. (0.10Ω) Is the base resistance of the power transistor open? Replace the base resistance.
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sTAN BY (COMPONENT sIDE) CUP12497Z-1 sTAN BY (FOIL sIDE) CUP12497Z-1 CONNECT CONNECT (COMPONENT sIDE) (FOIL sIDE) RF301 RF300 "CAUTION : REPLACE CUP12497Z-3 CUP12497Z-3 ONLY WITH SAME FUSE" F300 N,K T6.3A L 250V U : USA N : EUROPE K : CHINA BK71 CN34 ADJ-1...
EXPLODED VIEW WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacturer. 印の部分は安全を維持するために重要 な部品です。従って交換時は必ず指定の 部品を使用してください。...
PARTs LIsT OF EXPLODED VIEW Ref. No. Part No. Part Name Remarks Q'ty 943402103200M FRONT PANEL(AL) CKM1A234YC23 zParts for which "nsp" is indicated on this table cannot be supplied. BODY BRACKET CMD1A668 zP.W.B. ASS'Y for which "nsp" is indicated on this table cannot be supplied. When repairing the P.W.B. ASS'Y, check the board parts table and order replacement parts. H/S BRACKET CMD1A666 zPart indicated with the mark "...
PACKING VIEW PARTs LIsT OF PACKING & ACCEssORIEs zParts for which "nsp" is indicated on this table cannot be supplied. zPart indicated with the mark " ★ " is not illustrated in the exploded view. zThe parts listed below are for maintenance only, might differ from the parts used in the unit in appearances or dimensions. Note: The symbols in the column "Remarks"...
R8C/24 Group, R8C/25 Group 1. Overview sEMICONDUCTORs Pin Assignments Only major semiconductors are shown, general semiconductors etc. are omitted to list. The semiconductor which described a detailed drawing in a schematic diagram are omitted to list. Figure 1.4 shows PLQP0052JA-A Package Pin Assignments (Top View). Figure 1.5 shows PTLG0064JA-A Package Pin Assignments.
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Block Diagram Figure 1.1 shows a Block Diagram. R5F21246sNFP Block Diagram I/O ports Port P0 Port P1 Port P2 Port P3 Port P4 Port P6 Peripheral functions System clock A/D converter generation circuit × (10 bits 12 channels) Timers XIN-XOUT High-speed on-chip oscillator Timer RA (8 bits) Low-speed on-chip oscillator...
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Port sTBY Port spec Act. Init Port Name Ext. R Description setting setting MODE VCC/ VCC/AVCC AVCC P27/YRDIOD1 SPK_ON1 47kPD SPK1 OUT ON/OFF Control P26/TRDIOC1 SPK_ON2 47kPD NO USE P25/TRDIOB1 SPK_ON3 47kPD NO USE Protection LED ON/OFF P24/TRDIOA1 Protection LED DTrPU LED ON:L/ OFF:H Version display LED bit3(MSB)
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Port sTBY Port spec Act. Init Port Name Ext. R Description setting setting MODE P42/VREF VREF VREF +3.3V Emergency Protection(Power Voltage P60/TREO __P_LINE_FAIL 10kPU Ditection) L:fail detect _STANDBY1 10kPD Standby Control 1 _STANDBY2 10kPD Standby Control 2 Sensor "Power AMP Heat detection 1 P03/AN4 _HEAT_DET_1 100kPD...
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AT24C04BN-sH-B (IC403) Features • Low-voltage and Standard-voltage Operation – 1.8 (V = 1.8V to 5.5V) • Internally Organized 512 x 8 (4K), or 1024 x 8 (8K) • Two-wire Serial Interface • Schmitt Trigger, Filtered Inputs for Noise Suppression • Bidirectional Data Transfer Protocol •...
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LM94022BIMG (IC406,IC407,IC408) December 6, 2007 LM94022/LM94022Q 1.5V, SC70, Multi-Gain Analog Temperature Sensor with Class-AB Output ■ General Description Disk Drives ■ Games The LM94022 is a precision analog output CMOS integrated- ■ Appliances circuit temperature sensor that operates at a supply voltage as low as 1.5 Volts.
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2sC2922 Y (Q114,Q214,Q314) 2SC2922 LAPT Application : Audio and General Purpose silicon NPN Epitaxial Planar Transistor (Complement to type 2SA1216) External Dimensions MT-200 Absolute maximum ratings (Ta=25°C) Electrical Characteristics (Ta=25°C) 2SC2922 Symbol Symbol Unit Conditions 2SC2922 Unit ±0.2 36.4 ±0.3 =180V µ...
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2sA1216 Y (Q115,Q215,Q315) 2SA1216 Y (Q115,Q215,Q315) 2SA1216 LAPT Silicon PNP Epitaxial Planar Transistor (Complement to type 2SC2922) Application : Audio and General Purpose External Dimensions MT-200 Electrical Characteristics ■ Absolute maximum ratings ■ (Ta=25°C) (Ta=25°C) Symbol 2SA1216 Unit SymboI 2SA1216 Unit Conditions ±0.2...
PARTs LIsT OF P.C.B. UNIT zParts for which "nsp" is indicated on this table cannot be supplied. zThe parts listed below are for maintenance only, might differ from the parts used in the unit in appearances or dimensions. Note: The symbols in the column "Remarks" indicate the following destinations. U1B : North America model N1B : Europe model FRONT P.W.B.
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