SECTION 3 ELECTRICAL ADJUSTMENTS SELF-DIAGNOSIS FUNCTION In addition, this unit comes with a function which alerts when set- tings of the Hi-Current and Hi-Voltage modes are wrong. There are two switches at the base of this unit to switch to the Hi-Current and Hi-Voltage modes respectively.
IDLING ADJUSTMENT 2. Set the input signal setting to non-signal. • L-CH (R-CH) Adjusting Method 3. Apply a 14.4V power supply voltage between the +12V and RE- MOTE terminals and GND terminal. Connection: Digital voltmeter 4. Adjustments Connect a digital voltmeter between the two terminals of the cement resistors R149 and R150 (0.03 Ω) indicated as TP101 (L-CH TP101) and TP102 (TP201 and TP202 for R-CH).
XM-2252HX SECTION 5 SECTION 4 DIAGRAMS DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. • WAVEFORMS THIS NOTE IS COMMON FOR PRINTED WIRING 4-1. BOTTOM PLATE, PANEL (FRONT), PANEL (REAR) REMOVAL BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed...
XM-2252HX 5-5. SCHEMATIC DIAGRAM – POWER SECTION – • See page 10 for IC Block Diagrams. 13, 14 DC FAN MOTOR S801 S802 LED COLOR MODE AMBER Prohibit GREEN HI-CURRENT GREEN HI-VOLTAGE AMBER Prohibit – 18 – – 17 –...
XM-2252HX SECTION 6 EXPLODED VIEWS (2) AMP/POWER BOARD SECTION NOTE: • Hardware (# mark) list and accessories and pack- • Items marked “*” are not stocked since they are ing materials are given in the last of this parts list.
SECTION 7 AMPLIFIER ELECTRICAL PARTS LIST Note: • Items marked “*” are not stocked since they are • SEMICONDUCTORS When indicating parts by reference In each case, u: µ , for example: seldom required for routine service. Some delay number, please include the board uA...: µ...