[{"element_type":"user_image","content":"https://cdn-learn.adafruit.com/user_assets/assets/000/000/058/original/2022-11-17_glamour.jpeg?1671432390","metadata":{"caption":""}},{"element_type":"text","content":"\n\u003cp\u003eThe Ibanez FL9 Flanger Service Guide was compiled from a collection of original and obsolete information to create a useful guide for maintaining this unique guitar pedal. Credit must be given to the authors of the original 1980s era \u003cspan\u003e\u003cem\u003eService Manual NO. 002\u003c/em\u003e\u003c/span\u003e that was used as a template for this updated guide.\u003c/p\u003e\n","metadata":{}},{"element_type":"user_image","content":"https://cdn-learn.adafruit.com/user_assets/assets/000/000/059/original/old_manual_composite.png?1671432592","metadata":{"caption":"Page images from the original Ibanez FL9 Flanger Service Manual NO.002 (no date)"}},{"element_type":"text","content":"\n\u003cp\u003eNovember 26, 2022, Cedar Grove Studios\u003c/p\u003e\n\u003cp\u003eThe .pdf version of the guide and detailed repair blog can be downloaded from the project repository:\u003c/p\u003e\n\u003cp\u003e\u003ca title=\"FL9 Service Guide in the GitHub repository\" href=\"https://github.com/CedarGroveStudios/PCB_Ibanez_FL-9_Flanger/blob/main/docs/new_service_guide/Ibanez_FL9_Service_Guide.pdf\" target=\"_blank\"\u003eFL9 New Service Guide (.pdf)\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003e\u003ca title=\"FL9 Detailed Repair Blog\" href=\"https://github.com/CedarGroveStudios/PCB_Ibanez_FL-9_Flanger/blob/main/docs/repair_blog/Ibanez_FL9_Flanger_Repair_Blog.pdf\" target=\"_blank\"\u003eFL9 Detailed Repair Blog (.pdf)\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003eAlso available is a KiCAD folder of the as-built PCB design, contained in the project repository:\u003c/p\u003e\n\u003cp\u003e\u003ca title=\"FL9 PCB Reverse Engineered Design (KiCAD folder)\" href=\"https://github.com/CedarGroveStudios/PCB_Ibanez_FL-9_Flanger/tree/main/PCB\" target=\"_blank\"\u003eFL9 PCB Reverse Engineered Design (KiCAD folder)\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003e \u003c/p\u003e\n","metadata":{}},{"element_type":"user_image","content":"https://cdn-learn.adafruit.com/user_assets/assets/000/000/061/original/PCB_3D_render_glamour.png?1671433116","metadata":{"caption":"A KiCAD 3-D rendering of the reverse-engineered PCB."}},{"element_type":"text","content":"\n\u003ch2\u003eBlock Diagram\u003c/h2\u003e\n","metadata":{}},{"element_type":"user_image","content":"https://cdn-learn.adafruit.com/user_assets/assets/000/000/062/original/FL9_block_diagram.png?1671433204","metadata":{"caption":""}},{"element_type":"text","content":"\n\u003ch2\u003eAdjustment Procedure\u003c/h2\u003e\n","metadata":{}},{"element_type":"text","content":"\n\u003ch4\u003eCLOCK\u003c/h4\u003e\n","metadata":{}},{"element_type":"user_image","content":"https://cdn-learn.adafruit.com/user_assets/assets/000/000/063/original/clock_waves_composite.png?1671433430","metadata":{"caption":""}},{"element_type":"text","content":"\n        \u003col\u003e\n\u003cli\u003eSet SPEED, REGEN, WIDTH, and DELAY TIME controls fully counter-clockwise (CCW).\u003c/li\u003e\n\u003cli\u003eConnect an oscilloscope to test point CP1.\u003c/li\u003e\n\u003cli\u003eAdjust VR101 CLOCK TRIM for a frequency of 40kHz.\u003c/li\u003e\n\u003cli\u003eSet DELAY TIME control fully clockwise (CW) and check CP1 frequency. Should be in the range of 500kHz to 600kHz.\u003c/li\u003e\n\u003cli\u003eSet WIDTH control fully CW and check CP1 frequency sweep. The range should be from 40kHz to 500kHz-600kHz.\u003c/li\u003e\n\u003c/ol\u003e\n      ","metadata":{}},{"element_type":"text","content":"\n\u003ch4\u003eBIAS\u003c/h4\u003e\n","metadata":{}},{"element_type":"user_image","content":"https://cdn-learn.adafruit.com/user_assets/assets/000/000/065/original/bias_wave.png?1671433699","metadata":{"caption":""}},{"element_type":"text","content":"\n\u003col\u003e\n\u003cli\u003eSet REGEN and WIDTH controls fully CCW.\u003c/li\u003e\n\u003cli\u003eConnect a +5dBm to +10dBm (2.5 volt) 440Hz sine wave to the INPUT.\u003c/li\u003e\n\u003cli\u003eView the waveform on test point CP12. Adjust VR102 BIAS to achieve a symmetrically-clipped waveform.\u003c/li\u003e\n\u003c/ol\u003e\n","metadata":{}},{"element_type":"text","content":"\n\u003ch4\u003eREGEN\u003c/h4\u003e\n\u003col\u003e\n\u003cli\u003eSet SPEED, REGEN, and WIDTH controls fully CW.\u003c/li\u003e\n\u003cli\u003eConnect an oscilloscope to the OUTPUT with no INPUT signal\u003c/li\u003e\n\u003cli\u003eAdjust VR103 REGENERATION TRIM until oscillation is seen. Back down VR103 REGENERATION TRIM about 10 degrees to squelch the oscillation.\u003c/li\u003e\n\u003c/ol\u003e\n","metadata":{}},{"element_type":"text","content":"\n\u003ch2\u003eTest Points\u003c/h2\u003e\n","metadata":{}},{"element_type":"user_image","content":"https://cdn-learn.adafruit.com/user_assets/assets/000/000/066/original/FL9_PCB_BOT_testpoints.png?1671434205","metadata":{"caption":""}},{"element_type":"text","content":"\n\u003ch2\u003eTest Point Signals and Voltages\u003c/h2\u003e\n","metadata":{}},{"element_type":"user_image","content":"https://cdn-learn.adafruit.com/user_assets/assets/000/000/067/original/FL9_cp_waveforms.png?1671434270","metadata":{"caption":""}},{"element_type":"text","content":"\n\u003ch2\u003ePrinted Circuit Board\u003c/h2\u003e\n","metadata":{}},{"element_type":"user_image","content":"https://cdn-learn.adafruit.com/user_assets/assets/000/000/068/original/PCB_ortho_render_TOP.png?1671434484","metadata":{"caption":""}},{"element_type":"user_image","content":"https://cdn-learn.adafruit.com/user_assets/assets/000/000/074/original/PCB_TOP_BOT_layout.png?1673074958","metadata":{"caption":""}},{"element_type":"text","content":"\n\u003ch2\u003eSchematic Diagram\u003c/h2\u003e\n\u003cp\u003e\u003ca title=\"FL9 Schematic in the GitHub repository\" href=\"https://github.com/CedarGroveStudios/PCB_Ibanez_FL-9_Flanger/blob/main/PCB/Ibanez_FL-9.pdf\" target=\"_blank\"\u003eFL9 Schematic in the GitHub repository\u003c/a\u003e\u003c/p\u003e\n","metadata":{}},{"element_type":"user_image","content":"https://cdn-learn.adafruit.com/user_assets/assets/000/000/070/original/schematic.png?1671434978","metadata":{"caption":""}},{"element_type":"text","content":"\n\u003ch2\u003eTroubleshooting\u003c/h2\u003e\n","metadata":{}},{"element_type":"user_image","content":"https://cdn-learn.adafruit.com/user_assets/assets/000/000/071/original/FL9_troubleshooting_01.png?1671435345","metadata":{"caption":""}},{"element_type":"user_image","content":"https://cdn-learn.adafruit.com/user_assets/assets/000/000/072/original/FL9_troubleshooting_02.png?1671435362","metadata":{"caption":""}}]