Service Manual
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PDF & '08.03 DIGITAL KEYBOARD SERVICE MANUAL PK 001800 KB-180 SKB-180 CONTENTS SPECIFICATIONS 3 PANEL LAYOUT 4 CIRCUIT BOARD LAYOUT & WIRING 6 DISASSEMBLY PROCEDURE 8 LSI PIN DESCRIPTION 14 IC BLOCK DIAGRAM 16 CIRCUIT BOARDS 17 TEST PROGRAM 26 INITIALIZATION 29 MIDI IMPLEMENTATION CHART 30 MIDI DATA FORMAT 31 PARTS LIST BLOCK DIAGRAM OVERALL CIRCUIT DIAGRAM HAMAMATSU, JAPAN Copyright (c) Yamaha Corporation. All rights reserved.
PDF & '08.03 DIGITAL KEYBOARD SERVICE MANUAL PK 001800 KB-180 SKB-180 CONTENTS SPECIFICATIONS 3 PANEL LAYOUT 4 CIRCUIT BOARD LAYOUT & WIRING 6 DISASSEMBLY PROCEDURE 8 LSI PIN DESCRIPTION 14 IC BLOCK DIAGRAM 16 CIRCUIT BOARDS 17 TEST PROGRAM 26 INITIALIZATION 29 MIDI IMPLEMENTATION CHART 30 MIDI DATA FORMAT 31 PARTS LIST BLOCK DIAGRAM OVERALL CIRCUIT DIAGRAM HAMAMATSU, JAPAN Copyright (c) Yamaha Corporation. All rights reserved.
Service Manual
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... to those SAVING DATA Saving and backing up your data • Data in specification are marked originally installed. Be sure to save any discrepancy appear to exist, please contact the distributor's Service Division. The data provided is belived to be lost due to operational errors or malfunction. The research engineering, and service departments of Yamaha are , therefore, inevitable and changes in the instrument's internal memory can...
... to those SAVING DATA Saving and backing up your data • Data in specification are marked originally installed. Be sure to save any discrepancy appear to exist, please contact the distributor's Service Division. The data provided is belived to be lost due to operational errors or malfunction. The research engineering, and service departments of Yamaha are , therefore, inevitable and changes in the instrument's internal memory can...
Service Manual
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... the removed filament tape just as spare parts. *1: Installation *2: Manual soldering *3: Dip soldering *4: Edge mark is adjusted to Pin 1 mark ( ˚ mark). *5: Red wire is adjusted to (+) terminal. Black wire is connected to (-) terminal. *6: Red wire is adjusted to Pin 1 mark ( ˚ mark). *7: Edge mark is connected to + mark. KB-180/SKB-180 No. Connector assembly Destination Remarks q 30 WC601200...
... the removed filament tape just as spare parts. *1: Installation *2: Manual soldering *3: Dip soldering *4: Edge mark is adjusted to Pin 1 mark ( ˚ mark). *5: Red wire is adjusted to (+) terminal. Black wire is connected to (-) terminal. *6: Red wire is adjusted to Pin 1 mark ( ˚ mark). *7: Edge mark is connected to + mark. KB-180/SKB-180 No. Connector assembly Destination Remarks q 30 WC601200...
Service Manual
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... assembly (Red) BAT connector assembly (Black) Hook (A) Hook (A) Soldered Fig. 2 Soldered Spring terminal Fig. 3 8 KB-180/SKB-180 DISASSEMBLY PROCEDURE $BVUJPO#FTVSFUPBUUBDIUIFSFNPWFEpMBNFOUUBQFKVTUBTJUXBTCFGPSFSFNPWBM 1. The lower case assembly can then be removed. (Fig.1) 2. Lower Case Assembly (Time required: About 2 minutes) 1-1 Remove the battery cover assembly. (Fig.1) 1-2 Remove the nine...
... assembly (Red) BAT connector assembly (Black) Hook (A) Hook (A) Soldered Fig. 2 Soldered Spring terminal Fig. 3 8 KB-180/SKB-180 DISASSEMBLY PROCEDURE $BVUJPO#FTVSFUPBUUBDIUIFSFNPWFEpMBNFOUUBQFKVTUBTJUXBTCFGPSFSFNPWBM 1. The lower case assembly can then be removed. (Fig.1) 2. Lower Case Assembly (Time required: About 2 minutes) 1-1 Remove the battery cover assembly. (Fig.1) 1-2 Remove the nine...
Service Manual
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...]. KB-180/SKB-180 3. The LCD unit can then be removed. (Fig. 6) Master volume knob Fig. 4 Push knob AM Fig. 5 [210A] LCD unit AM (AMJK 5/6) [210G] [210E] [210E] [210B] [210D] AM (AMJK 4/6) [A] MIDI (AMJK 2/6) Upper case assembly [210F] [210B] AM [210B] [A] (AMJK 1/6) [210C] [210]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300) Fig. 6 9 AM Circuit Board (Time required...
...]. KB-180/SKB-180 3. The LCD unit can then be removed. (Fig. 6) Master volume knob Fig. 4 Push knob AM Fig. 5 [210A] LCD unit AM (AMJK 5/6) [210G] [210E] [210E] [210B] [210D] AM (AMJK 4/6) [A] MIDI (AMJK 2/6) Upper case assembly [210F] [210B] AM [210B] [A] (AMJK 1/6) [210C] [210]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300) Fig. 6 9 AM Circuit Board (Time required...
Service Manual
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... board, tight- MIDI Circuit Board (Time required: About 6 minutes) 6-1 Remove the lower case assembly. (See procedure 1.) 6-2 Remove the four (4) screws marked [210G]. Nonwoven fabric cloth LCD panel 6. DMLCD Circuit Board, Back Light Assembly and LCD (Time required: About 4 minutes) 5-1 Remove the lower case assembly. (See procedure 1.) 5-2 Remove the LCD unit. (See procedure 4.) 5-3 Remove the eight (8) screws marked [L100]. KB-180/SKB-180...
... board, tight- MIDI Circuit Board (Time required: About 6 minutes) 6-1 Remove the lower case assembly. (See procedure 1.) 6-2 Remove the four (4) screws marked [210G]. Nonwoven fabric cloth LCD panel 6. DMLCD Circuit Board, Back Light Assembly and LCD (Time required: About 4 minutes) 5-1 Remove the lower case assembly. (See procedure 1.) 5-2 Remove the LCD unit. (See procedure 4.) 5-3 Remove the eight (8) screws marked [L100]. KB-180/SKB-180...
Service Manual
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... [200B] [200B] Keyboard assembly [200B] [200B] [200A]: Bind Head Tapping Screw-B 4.0X10 MFZN2W3 (WE974500) [200B]: Bind Head Tapping Screw-P 3.0X20 MFZN2W3 (WF492000) [200C]: Bind Head Tapping Screw-P 3.0X20 MFZN2W3 (WF492000) Fig. 12 C6 [200C] 11 KB-180/SKB-180 8. Speaker Grilles L and R (Time required: About 3 minutes) 9-1 Remove the lower case assembly. (See procedure 1.) 9-2 Set the eight (8) hooks [A] parallel to...
... [200B] [200B] Keyboard assembly [200B] [200B] [200A]: Bind Head Tapping Screw-B 4.0X10 MFZN2W3 (WE974500) [200B]: Bind Head Tapping Screw-P 3.0X20 MFZN2W3 (WF492000) [200C]: Bind Head Tapping Screw-P 3.0X20 MFZN2W3 (WF492000) Fig. 12 C6 [200C] 11 KB-180/SKB-180 8. Speaker Grilles L and R (Time required: About 3 minutes) 9-1 Remove the lower case assembly. (See procedure 1.) 9-2 Set the eight (8) hooks [A] parallel to...
Service Manual
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... screws marked [200B]. Disassembling Keyboard Assembly (Time required: About 3 minutes) 12-1 Remove the lower case assembly. (See procedure 1.) 12-2 White Keys and Black Keys: 12-2-1 White and black keys for circuit board "61L" in a set. (Fig. 12) To remove a set . The white and black keys in total. The circuit board 61H can then be removed. (Fig. 13) Hook Photo 1 Rubber Contact Photo...
... screws marked [200B]. Disassembling Keyboard Assembly (Time required: About 3 minutes) 12-1 Remove the lower case assembly. (See procedure 1.) 12-2 White Keys and Black Keys: 12-2-1 White and black keys for circuit board "61L" in a set. (Fig. 12) To remove a set . The white and black keys in total. The circuit board 61H can then be removed. (Fig. 13) Hook Photo 1 Rubber Contact Photo...
Service Manual
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... I/O 46 DB7 I /O FUNCTION Segment signal output for LCD driving Ground Oscillator Oscillator Power supply Data latch clock Data shift clock Power supply (+5 V) Altamated signal for LCD driving ADC084S021CIMM (X6905A00) ADC (Analog to Analog Converter 16 NT3881DFG-01 (X3148A00) LCD DRIVER ML9040A-B01GAZ03A (XZ987A00) LCD DRIVER PIN NO. NAME I/O 1 CS I 2 VA - 3 GND - 4 AIN4 I/O 5 AIN3 I FUNCTION Analog input Digital data input Digital data output Digital clock input DMLCD: IC801 14 KB-180/SKB-180 LSI PIN DESCRIPTION...
... I/O 46 DB7 I /O FUNCTION Segment signal output for LCD driving Ground Oscillator Oscillator Power supply Data latch clock Data shift clock Power supply (+5 V) Altamated signal for LCD driving ADC084S021CIMM (X6905A00) ADC (Analog to Analog Converter 16 NT3881DFG-01 (X3148A00) LCD DRIVER ML9040A-B01GAZ03A (XZ987A00) LCD DRIVER PIN NO. NAME I/O 1 CS I 2 VA - 3 GND - 4 AIN4 I/O 5 AIN3 I FUNCTION Analog input Digital data input Digital data output Digital clock input DMLCD: IC801 14 KB-180/SKB-180 LSI PIN DESCRIPTION...
Service Manual
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... FUNCTION Ground Power supply +3.3 V External memory lower-byte enable / Port F External memory upper-byte enable / Port F External memory read enable / Port F External memory data bus Ground External memory data bus Ground Power supply +2.5 V Power supply +3.3 V External memory address bus Ground External memory address bus External memory chip select / Port G External memory address bus External memory address bus / Port F External memory address bus External memory address bus / Port F External memory chip select / Port G External memory address bus / Port F Ground Power supply +2.5 V Power...
... FUNCTION Ground Power supply +3.3 V External memory lower-byte enable / Port F External memory upper-byte enable / Port F External memory read enable / Port F External memory data bus Ground External memory data bus Ground Power supply +2.5 V Power supply +3.3 V External memory address bus Ground External memory address bus External memory chip select / Port G External memory address bus External memory address bus / Port F External memory address bus External memory address bus / Port F External memory chip select / Port G External memory address bus / Port F Ground Power supply +2.5 V Power...
Service Manual
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... O DMLCD: IC501 FUNCTION Rch Analog out(-) Rch Analog out(+) Lch Analog out(-) Lch Analog out(+) Ground Power Supply Rch Data Zero Input Detect Lch Data Zero Input Detect IC BLOCK DIAGRAM SN74LV32APWR (X5647A00) Quad 2 Input OR DMLCD: IC207 SN74LV138APWR (X7284A00) 3 to Analog Converter) PIN NO. KB-180/SKB-180 AK4385ET (X6040A00) DAC (Digital to 8 Demultiplexer DMLCD: IC401, 402 BA4510F-E2 (X7300A00) Dual Operational Amplifier DMLCD...
... O DMLCD: IC501 FUNCTION Rch Analog out(-) Rch Analog out(+) Lch Analog out(-) Lch Analog out(+) Ground Power Supply Rch Data Zero Input Detect Lch Data Zero Input Detect IC BLOCK DIAGRAM SN74LV32APWR (X5647A00) Quad 2 Input OR DMLCD: IC207 SN74LV138APWR (X7284A00) 3 to Analog Converter) PIN NO. KB-180/SKB-180 AK4385ET (X6040A00) DAC (Digital to 8 Demultiplexer DMLCD: IC401, 402 BA4510F-E2 (X7300A00) Dual Operational Amplifier DMLCD...
Service Manual
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KB-180/SKB-180 AM (AMJK 1/6) Circuit Board to Back light not installed to DMLCD-CN101 to Speaker L to Battery DC IN 12V PHONES/ OUTPUT Component side EXPRESSION AM (AMJK 4/6) Circuit Board AM (AMJK 5/6) Circuit Board MASTER VOLUME STANDBY/ON Component side 24 Component side AM: 2NA-WG23590-1 5
KB-180/SKB-180 AM (AMJK 1/6) Circuit Board to Back light not installed to DMLCD-CN101 to Speaker L to Battery DC IN 12V PHONES/ OUTPUT Component side EXPRESSION AM (AMJK 4/6) Circuit Board AM (AMJK 5/6) Circuit Board MASTER VOLUME STANDBY/ON Component side 24 Component side AM: 2NA-WG23590-1 5
Service Manual
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...: Foot switch (FC-4 or FC-5), MIDI cable, EXP pedal 2 Starting up the test program While holding down the keys [C#2], [F2] and [G#2] simultaneously, press the [STANDBY/ON] switch. If the result is executed, the data already set will be lost. 1 Preparations 1) Use an AC adaptor PA-5D. 2) Measuring device: Frequency counter, which the test results are OK. KB-180/SKB-180 TEST PROGRAM * If the test number 47 "Factory Set" is...
...: Foot switch (FC-4 or FC-5), MIDI cable, EXP pedal 2 Starting up the test program While holding down the keys [C#2], [F2] and [G#2] simultaneously, press the [STANDBY/ON] switch. If the result is executed, the data already set will be lost. 1 Preparations 1) Use an AC adaptor PA-5D. 2) Measuring device: Frequency counter, which the test results are OK. KB-180/SKB-180 TEST PROGRAM * If the test number 47 "Factory Set" is...
Service Manual
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... [PHONES/OUTPUT] jack. (33 Ω load) Set the [MASTER VOLUME] to the CPU bus. Make sure that all the LEDs on the panel are pressed as shown in the LCD. Make sure that "Exp OK" is displayed on the LCD. KB-180/SKB-180 TEST No LCD display 20 SW Chk 020 21 A. Make sure that "Ram OK" is displayed on the LCD. Connect the [MIDI IN...
... [PHONES/OUTPUT] jack. (33 Ω load) Set the [MASTER VOLUME] to the CPU bus. Make sure that all the LEDs on the panel are pressed as shown in the LCD. Make sure that "Exp OK" is displayed on the LCD. KB-180/SKB-180 TEST No LCD display 20 SW Chk 020 21 A. Make sure that "Ram OK" is displayed on the LCD. Connect the [MIDI IN...
Service Manual
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.... x x : Tune x x System : Clock o Real Time: Commands o Aux :All Sound OFF x :Reset All Cntrls x :Local ON/OFF x :All Notes OFF x Mes- :Active Sense o sages:Reset x *1 Mode 1 : OMNI ON , POLY Mode 3 : OMNI OFF, POLY o o o(120,126,127) o(121) o(122) o(123-125) o x Mode 2 : OMNI ON ,MONO Mode 4 : OMNI OFF,MONO 30 o : Yes x : No x x Common : Song Sel. KB-180/SKB-180 MIDI IMPLEMENTATION CHART YAMAHA [ Digital Keyboard ] Model KB-180/SKB-180 Date:21-SEP-2007 MIDI Implementation Chart Version:1.0 Function...
.... x x : Tune x x System : Clock o Real Time: Commands o Aux :All Sound OFF x :Reset All Cntrls x :Local ON/OFF x :All Notes OFF x Mes- :Active Sense o sages:Reset x *1 Mode 1 : OMNI ON , POLY Mode 3 : OMNI OFF, POLY o o o(120,126,127) o(121) o(122) o(123-125) o x Mode 2 : OMNI ON ,MONO Mode 4 : OMNI OFF,MONO 30 o : Yes x : No x x Common : Song Sel. KB-180/SKB-180 MIDI IMPLEMENTATION CHART YAMAHA [ Digital Keyboard ] Model KB-180/SKB-180 Date:21-SEP-2007 MIDI Implementation Chart Version:1.0 Function...
Service Manual
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... Head Tapping Screw-B * 250 WM930000 Circuit Board 260 -- Battery Cushion White 340c -- ACMP VOL UP,ACMP VOL DOWN 02 TEMPO UP,TEMPO DOWN STYLE A/B,VOICE A/B 2 01 FUNCTION,+/YES,-/NO 03 MEMORY,BANK,REGIST 1, 03 REGIST2, REGIST3, REGIST4 PIANO,...,CLARINET 2 03 OBOE,...,SE/XG DUAL,SPLIT,ERHU,PIPA, 03 YANGQIN,DIZI,SUONA,ENSEMB TOUCH,REVERB,SUSTAIN,DEMO 02 SONG NO.,REC,PORTAMENTO 3 01 SONG 1,SONG 2,SONG A ̡̥̣γʔ...
... Head Tapping Screw-B * 250 WM930000 Circuit Board 260 -- Battery Cushion White 340c -- ACMP VOL UP,ACMP VOL DOWN 02 TEMPO UP,TEMPO DOWN STYLE A/B,VOICE A/B 2 01 FUNCTION,+/YES,-/NO 03 MEMORY,BANK,REGIST 1, 03 REGIST2, REGIST3, REGIST4 PIANO,...,CLARINET 2 03 OBOE,...,SE/XG DUAL,SPLIT,ERHU,PIPA, 03 YANGQIN,DIZI,SUONA,ENSEMB TOUCH,REVERB,SUSTAIN,DEMO 02 SONG NO.,REC,PORTAMENTO 3 01 SONG 1,SONG 2,SONG A ̡̥̣γʔ...
Service Manual
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...V7100100 V8696200 WE774300 WH899400 WF492000 DESCRIPTION KEYBOARD ASSEMBLY Keyboard Assembly White Key White Key White Key White Key White Key Black Key Rubber Contact Rubber Contact Circuit Board Circuit Board Felt U White Felt L White Rubber Support Connector Assembly Bind Head Tapping Screw-B Bind Head Tapping Screw-P Bind Head Tapping Screw-P *: New Parts 16N C61 16N CEGB 16N ...04 04 04 04 02 02 03 01 7 01 13 01 21 01 RANK: Japan only 5 KEYBOARD ASSEMBLY 40 190 151 160 50 180 50 190 180 60 175 155 152 KB-180/SKB-180 200 10 20 200 40 10 200 20 170 30 REF NO. 10 10 20 20 30 ...
...V7100100 V8696200 WE774300 WH899400 WF492000 DESCRIPTION KEYBOARD ASSEMBLY Keyboard Assembly White Key White Key White Key White Key White Key Black Key Rubber Contact Rubber Contact Circuit Board Circuit Board Felt U White Felt L White Rubber Support Connector Assembly Bind Head Tapping Screw-B Bind Head Tapping Screw-P Bind Head Tapping Screw-P *: New Parts 16N C61 16N CEGB 16N ...04 04 04 04 02 02 03 01 7 01 13 01 21 01 RANK: Japan only 5 KEYBOARD ASSEMBLY 40 190 151 160 50 180 50 190 180 60 175 155 152 KB-180/SKB-180 200 10 20 200 40 10 200 20 170 30 REF NO. 10 10 20 20 30 ...
Service Manual
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...V I 8 7 9 4 0 0 Cable Holder CN774 VY669100 Cable Holder CN775 V I 8 7 8 4 0 0 Cable Holder CN775 VY668500 Cable Holder CN776 V I 8 7 8 4 0 0 Cable Holder CN776 VY668500 Cable Holder CN777 VK024700 Wire Trap D771 VB941200 Diode...Connector Assembly WH774 -- KB-180/SKB-180 REF NO. Connector Assembly WH775 -- PART NO. Connector Assembly 10 CN01 CN02 CN03 D073 -122 V 8 6 9 5 5 0 0 Circuit Board V 8 6 9 5 4 0 0 Circuit Board VQ769500 Masking Tape VK025600... 01 μΠΦʔυ 01 VOICE B STYLE B PORTAMENTO 01 01 01 ̥̣̑...
...V I 8 7 9 4 0 0 Cable Holder CN774 VY669100 Cable Holder CN775 V I 8 7 8 4 0 0 Cable Holder CN775 VY668500 Cable Holder CN776 V I 8 7 8 4 0 0 Cable Holder CN776 VY668500 Cable Holder CN777 VK024700 Wire Trap D771 VB941200 Diode...Connector Assembly WH774 -- KB-180/SKB-180 REF NO. Connector Assembly WH775 -- PART NO. Connector Assembly 10 CN01 CN02 CN03 D073 -122 V 8 6 9 5 5 0 0 Circuit Board V 8 6 9 5 4 0 0 Circuit Board VQ769500 Masking Tape VK025600... 01 μΠΦʔυ 01 VOICE B STYLE B PORTAMENTO 01 01 01 ̥̣̑...
Service Manual
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...adaptor PA-5D 4 - + BATTERY 1.5V x 6 EXPRESSION DGND JK856 5 CN555 (2P) CN803 (9P) CN853 (9P) RESET 28CA1-2001002836 1 R+ R- MIDI (AMJK 2/6) SPEAKER R 4Ω 12cm KB-180/SKB-180 BLOCK DIAGRAM 6 L 11 L+ 1 POWER AMP. R 6W + 6W R+ 6 8 BTL 9 RLA4625 IC551 (14P) R- A B C D E F G H PA0-PA3,PA5 PB0-PB7 CN772 (7P) CN773 (7P) CN776 (6P) CN775 (6P) PB0-PB7 LED AIN1 LED CN855 (3P) CN777 (3P) KB-180/SKB-180 BLOCK DIAGRAM TOUCH RESPONSE... (13P) CN155 (13P) LCD DISPLAY BACK LIGHT LED: 2PCS (Blue) L R AM (AMJK 4/6) VR551 MASTER VOLUME A5KΩ CN552 (5P) CN551...
...adaptor PA-5D 4 - + BATTERY 1.5V x 6 EXPRESSION DGND JK856 5 CN555 (2P) CN803 (9P) CN853 (9P) RESET 28CA1-2001002836 1 R+ R- MIDI (AMJK 2/6) SPEAKER R 4Ω 12cm KB-180/SKB-180 BLOCK DIAGRAM 6 L 11 L+ 1 POWER AMP. R 6W + 6W R+ 6 8 BTL 9 RLA4625 IC551 (14P) R- A B C D E F G H PA0-PA3,PA5 PB0-PB7 CN772 (7P) CN773 (7P) CN776 (6P) CN775 (6P) PB0-PB7 LED AIN1 LED CN855 (3P) CN777 (3P) KB-180/SKB-180 BLOCK DIAGRAM TOUCH RESPONSE... (13P) CN155 (13P) LCD DISPLAY BACK LIGHT LED: 2PCS (Blue) L R AM (AMJK 4/6) VR551 MASTER VOLUME A5KΩ CN552 (5P) CN551...
Service Manual
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... large numbers with parts having special characteristics are marked and must be replaced with function are indicated the first digit of circuit board component parts. REGULATOR +6V XX BATTERY 9 XX POWER AMP. 6W+6W DC IN 12V 10 61L (C1~B3) AM (AMJK 4/6) PHONES/OUTPUT MASTER VOLUME 28CC1-2001002844 6 XX XX Flame Proof Carbon Resistor 11 SPEAKER L 28CC1-2001002844 6 28CC1-8822436 12 KB-180/SKB-180...
... large numbers with parts having special characteristics are marked and must be replaced with function are indicated the first digit of circuit board component parts. REGULATOR +6V XX BATTERY 9 XX POWER AMP. 6W+6W DC IN 12V 10 61L (C1~B3) AM (AMJK 4/6) PHONES/OUTPUT MASTER VOLUME 28CC1-2001002844 6 XX XX Flame Proof Carbon Resistor 11 SPEAKER L 28CC1-2001002844 6 28CC1-8822436 12 KB-180/SKB-180...