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Downloaded the Service manual OK of the Technics Piano and have now repaired it and its going fine. Excellant; thank you for the fine servce. A.M
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This site is working fine! Did buy a manual for SX-EX25L and after a while I could download it and fix the problem. Nice and easy!
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Complete manual as pdf-file in very good quality. Very helpful and fast availability.
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Complete service manual in very good scanning quality with all schematic and PWB graphics as well as assembly & maintenance instructions. A slight drawback is that the rastering of the PWB graphics sometimes makes it a bit difficult to follow fine traces, but no showstopper.
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Purchased the manual that I was looking for at a great price and could download it easily.. Great service experience and for future purchases I plan to use the site. Thank you very much
PCB MAIN
TEST MODE Wave ROM check MAIN: IC12, IC18
Procedure
1. Press and hold the two E keys shown below, and then turn on the power switch. 2. Select the POP GROUND sound. 3. Reduce the MAIN VOLUME level low enough.
When set to the self-diagnostic mode, the Wave ROM outputs a sine wa The Wave ROMs correspond to the keyboard keys as shown in the diagram to the right. When a key is pressed, the corresponding sine wa sound is produced. If no sound is produced, or if the sound is distorted the Wave ROM corresponding to that key is defective. This method allo to diagnose also the output routes (L/R) from the Wave ROM. -The key number indicates the Wave ROM number.
(I-1: IC12, I-2: IC18)
CPL CPR
Control Panel buttons Press and hold the two F keys shown below, and then turn on the powe LED lighting check switch.
Control Panel LED display check
Press the buttons on the control and confirm that the corresponding LE light. Press and hold the two G keys shown below, and then turn on the powe switch.
MKB
Keyboard ROM (IC1) check
The numbers are displayed automatically and repeatedly on the display Press and hold the two A keys shown below, and then turn on the powe switch.
If the keyboard ROM (IC1) is OK, only the TOUCH SENSITIVITY LIGHT L flashes. If it is defective, the LEDs (LIGHT and NORMAL, or LIGHT, NORMAL and HEAVY) flash.
9. PRECAUTIONS BEFORE SERVICING
9.1. Precautions for measuring of the output waveforms 1. The waveform was measured with a �National Digital Storage
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