Réparation électronique et informatique à Paris
8M diagnose and replace 3.3v regulator TPS79633DCQ PSU for no start, R500 current limiting resistors +/-9V Main Board for distorted audio, TPS9650DCQ 5v regulator for PGA2500s Main Board for no input, 5v Main Board cap dry joint, replace case screw 6-32 1 1/8.
828 Mk II diagnose and replace input pots for intermittent noise, backlight LED for display
Equivalent Bartscher ID-350A
Remplacement IGBT1 et 2 25N120ANTD, Zener 1 et 2 BZX85C18
id-350a IK 35 induction manual
Many blown components, probably caused by dry joints failing at mosfet. Used STP6NK90Z (note case not isolated) as substitute for 2SK1548
spirit_pro_tracker user manual
CR02AM-8 400V – 0.2A – Thyristor
Also AUX/OUTPUT/RETURN PCB C70 C71 100uf 25v, 8mm by 11mm, leaking +V -V caps corroded right monitor output trace, also dry joints CN4 +V -V Gnd pins 12, 13, 14, 15
Blown limiter mosfet, one channel louder than others:
BS250 TO-92-18RM (TO-18 Lead Form) substitute e-line package
BS250 Vishay Siliconix P-Channel 60-V (D-S) MOSFET
BS250p E-Line TO92 TO18 Compatible
Power-on thump was blown -17v resistor R62 on channel card.
Remplacement C9560 et C9565 pour l’alimentation de la carte graphique dédiée
