Pioneer GM-X924 Service Manual - Page 25

GM-X1024,GM-X924 6. ADJUSTMENT No. Item Conditions 1 Idling current Input ; adjust 30 seconds after 1kΩ terminate (adjustment) power is switched on, and within 20 seconds. 2 DC-DC Converter Input ; adjust 30 seconds after 1kΩ terminate voltage power is switched on, and within 20 (adjustment) seconds. Adjustment point VR101(A Lch) VR201(A Rch) VR301(B Lch) VR401(B Rch) VR951 VR952 Specifications mV Meter(1) : 20±6mV mV Meter(2) : +29±3V mV Meter(3) : -29±3V - Connection Diagram +14.4V DC Regulated Power Supply 4Ω (2W) SPEAKER A OUTPUT 4Ω (2W) 4Ω (2W) SPEAKER B OUTPUT 4Ω (2W) POWER GND SYSTEM CONTROL VR951 VR952 mV Meter (1) Q215 Q216 E C VR201 E mV Meter (1) Q115 Q116 E C VR101 E C mV Meter + (3) mV Meter + (2) AMP UNIT GND BR GND 1kΩ VR401 E E VR301 E E Q415 Q416 mV Meter (1) Q315 Q316 mV Meter (1) AR 1kΩ 1kΩ 1kΩ BL AL Fig. 12 25