Sep.2004 RC-20XL SERVICE NOTES Issued by RJA TABLE DF CONTENTS CAUTIONARY NOTES ...................................................2 SPECIFICATIONS.............................................................2 LOCATION OF CONTROLS ..........................................4 LOCATION OF CONTROLS PARTS LIST ...................5 EXPLODED VIEW, EXPLODED VIEW PARTS LIST ........................6 PARTS LIST......................................................................10 CHECKING THE VERSION NUMBER.....
Sep.2004 CAUTIONARY NOTES AUX IN Jack (Stereo miniature phone type) PHRASE SHIFT Jack (1/4 inch TRS phone type) REVERSE Jack (1/4 inch phone type) User data status User data status after each of the following processes is described below. Whenever carrying out procedures that involve deleting or erasing user data, always be sure to back up the user data to some form of external media (refer to Saving and Loading Data).
RC-20XL 3
Sep.2004 LOCATION OF CONTROLS fig.
RC-20XL LOCATION OF CONTROLS PARTS LIST NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 PART CODE G2017145 G2187530 G2187531 G2357116 H5029851 G2217185 H5029855 F3279802 F3279803 F3279805 G2477122 G247751001 G247751301 G2217186 1502928100 F5029117 F5029125 F5029124 15029342 F5029126 G2527110 F344941501 F3449707 13449155MF F3449709 G2017621 75D422E000 G2357118 G2537558 F3129306 13129778 CATEGORY CASING CASING CASING CASING CASING CASING SCREWS POTENTIOMETER POTENTIOM
Sep.2004 EXPLODED VIEW, EXPLODED VIEW PARTS LIST EXPLODED VIEW1 fig.
RC-20XL EXPLODED VIEW 2 fig.
Sep.2004 EXPLODED VIEW 3 fig.
RC-20XL EXPLODED VIEW (Fig. A) fig.explo-4 b 19 22 46 34 b m 20 1 25 e f EXPLODED VIEW(Fig. A) PARTS LIST [PART] NO 1 19 20 22 25 34 46 PART CODE G2017145 75E183M000 75E183P000 G225712901 G2527110 ******** G2147821 PART NAME TOP CASE JACK BOARD ASSY PANEL BOARD ASSY INSULATING SHEET CENTER REAR PANEL This PWB ASSY is inclueded the JACK BOARD ASSY.
Sep.2004 PARTS LIST fig.part1e SAFETY PRECAUTIONS: The parts marked have safety-related characteristics. Use only listed parts for replacement. Due to one or more of the following reasons, parts with parts code ******** cannot be supplied as service parts. • Part supplied only as a component in a complete assembly • Copyright does not permit the part to be supplied • Part is sold commercially NOTE: The parts marked # are new.
RC-20XL DIODE # F5019309 F5029126 F5029125 1502928100 02DZ5.1-Y L-113GDT L-34YDSL L-34HDSL ZENNER DIODE POWER LED LED (YELLOW) LED (RED) D9 on PB LED17 on PB LED6 on PB LED2,LED3,LED4,LED12,LED13,LED14,LE D15,LED16 LED5,LED7 on PB LED1 on PB LED8,LED9,LED10,LED11 on PB D1 on JK,D1,D2,D3,D4,D5,D6,D7,D8 on PB DA2,DA5,DA6,DA7 on JK D2 on JK D5,D6 on JK 1 1 1 8 F5029124 15029342 F5029117 15339119 15339120 F5339138 F5339137 L-34GDSY GL3ED8 L-312LRD 1SS-352 1SS302 1SS355 SS14 VF=0.
Sep.2004 INDUCTOR,COIL,FILTER # F5409117 12449386 F2449209 NFM4516P13C204F SBT-0180W SLF7032T-151MR29-2(150UH) EMI FILTER EMI FILTER COIL C80 on JK FL1 on JK L20 on JK 1 1 1 CRYSTAL,RESONATOR F5299114 # F5299104 HC-49SM 5MHZ MA-406 (24.
RC-20XL CHECKING THE VERSION NUMBER Connect the REVERSE jack and PHRASE SHIFT jack respectively. 1. Completely turn down all volume controls. 2. 2. Hold down the left pedal (ON/OFF) and right pedal (TAPL/MEMORY) and connect the +9 V DC plug to the ADAPTOR JACK. 1) While holding down the [TAP TEMPO] and [AUTO START] buttons,turn on the power of the transmitting RC-20XL. (This turns on the power).
Sep.2004 INSTRUCTIONS FOR FACTORY RESET 16. PHRASE SELECT volume check The RC-20XL can be restored to its original factory settings with the following procedure. 18. Battery operation check 17. Noise check Items required for tests Restoring the factory settings with this procedure requires another RC-20XL currently programmed with the factory settings. Procedure 1. Turn on the power to the RC-20XL that is to have the factory settings restored. 2. Turn the PHRASE SELECT knob to “1.” 3.
RC-20XL Exiting Test Mode Turn off the power • Press the AUTO START switch, and verify that “AUTO START” goes dark. • Press the MODE switch, and verify that “INST & MIC”, “NORMAL”, “CENTER CANCEL”, and “FLAT AMP SIMULATE” go dark. Explanation of each test item • Press the FS-5U connected to the PHRASE SHIFT jack (left channel), and confirm that the “ONE SHOT PHRASE” indicator light goes off. 1.
Sep.2004 6.DA check • fig.INST_40 Once again check the output wavwform at the point that “5.GUIDE volume check” is completed, to check the DC leakage and level.In the following cases, the result is NG. Excessive level NG ↑ 2.4 Vpp ↓ Insufficient level NG ↑ 2.0 Vpp ↓ (0.5V/DIV, 1mS/DIV) 1.2Vp-p (0.5V/DIV, 1mS/DIV) (0.5V/DIV, 1mS/DIV) +DC NG(Asymmetrical:the upper and lower sides) -DC NG(Asymmetrical:the upper and lower sides) 0.2Vp-p 9.
RC-20XL 11.AUX IN (NORMAL) check • Set the PHRASE SELECT volume to the ‘6’ position. • Verify that “LOOP QUANTIZE” is dark and “LOOP PHRASE” is lit. • Verify that the output waveform is the same as the waveform shown in (0.5V/DIV, 1mS/DIV) 1.8Vp-p 0.2Vp-p 15.solder spot check the diagram. • Set the PHRASE SELECT volume to the ‘10’ position. fig.NORMAL_40 • Verify that “CENTER CANCEL” is dark and “FLAT AMP SIMULATE” is lit. • Verify that there is no longer an output waveform.
Sep.2004 Always check the battery after repairing or servicing the product. Skipping directly to the desired test • Enter Test mode. • The FLASH ROM check will occur automatically, and if there is no problem, all LEDs other than “PEAK” will light. • Follow the procedure described in the section for the test you want to perform. In order to perform “5. GUIDE volume check,” you must first perform “4. LEVEL volume check.
PHRASE SHIFT REVERSE INST MIC AUX IN Q9 IC9A IC9B Q12 MIC VR5 CENTER CANCEL FILTER IC10B FLAT AMP FILTER PEAK LED16 SW PANEL BOARD LED CN1 CN2 INST VR4 CN1 GATE ARRAY IC4 SDRAM IC1 IC6 WIRING P/N:G3487419 VR 1---3 IC13B RESET IC IC13A CN3 CPU IC3 IC12B WIRING P/N:G3487419 IC12A FLASH MEMORY IC6 AD/DA IC14 +3.3V DC/DC CONVERTER IC16 IC15A IC15B JACK BOARD IC10A WIRING P/N:G3477146 WIRING P/N:G3487163 CN5 CN4 CN6 OUTPUT BATTERY BOX RC-20XL BLOCK DIAGRAM fig.
Sep.2004 CIRCUIT BOARD (PANEL) fig.b-panel-1 fig.
RC-20XL 21
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RC-20XL 25
Sep.2004 RC-20XL CIRCUIT DIAGRAM (JACK1) AVcc VR_VDD CN3 2 DA1 N.I.U FROM DIGITAL BLOCK 3 AVcc INST IN L12 AVcc R29 10k AVcc R35 100k C49 1/50 R36 82k R41 10k IC8D TC4066BFT C53 33p 11 1_2VCC R45 150k + C56 470p R57 22K + 1 2 A DA4 N.I.U DA5 1SS302 3 1 D +3. 3 D 2 3 1 C65 N.I.U + 7 1 IC10B M5218AFP 1 5 C63 R65 0.0056 12k IC11B TC4W66F A R66 15k 2 - 3 + 1 R67 10k R69 10k 6 - 5 + 1 IC13A NJM2100M (fc=32 k) 1 7 2 4 Q15 RN1307 3 Q16 RN1307 C73 0.
Sep.2004 RC-20XL CIRCUIT DIAGRAM (JACK 2) C19 C20 C21 0.01 0.01 0.01 (SW_SCAN1) (SW_SCAN2) (SW_READ1) (SW_READ2) (SW_READ3) (SW_READ4) SW1 SW2 SW3 SW4 SW5 SW6 RA5 R91 R92 P52/TO03 P51/IP031 P50/IP030/TI030 PCM5/SELFREF PCM4/REFRQ PCM3/HLDRQ PCM2/HLDAK CRN34680J 68 68 60 62 R93 10k C25 22p R94 10k X3 PCM0/WAIT PCT7/BCYST PCS7/CS7 PCS2/CS2/IOWR PCS0/CS0 RA7 VSS VSSQ VSSQ VSSQ VSSQ M12L16161A-7T 50 54 41 28 26 4 10 41 47 6 12 46 52 C10 C11 C12 C13 C14 0.1 0.1 0.1 0.
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