Sony HCD-HX7 Service Manual - Page 22
Block Diagram, PANEL/POWER SUPPLY
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HCD-HX3/HX5/HX7 6-5. Block Diagram - PANEL/POWER SUPPLY Section - FL901 FLUORESCENT INDICATOR TUBE DA CP CS RESET 1G, 12G GRID DRIVE Q901, 902 Q1, Q12 VH F+ VDD D909 SYSTEM CONTROLLER IC301 (5/5) AC DET 85 73 FL SD 71 FL SCLK 72 FL CS 75 FL RESET VH B+ (HX5/HX7) BT POWER 65 +7V EVER +3.3V REMOTE CONTROL RECEIVER IC951 4 SIRCS S951 - 954, S961 - 963, S965 - 968, S970 - 976 D218, 219 RV952 VOLUME ROTARY ENCODER 83 - 81 KEY0 - KEY2 74 KEY WAKE UP FL POWER ON 70 84 VOLUME JOG CD ON 21 LED DRIVE Q953 D952 USB MEMORY (HX3) BLUETOOTH (HX5/HX7) D951 STANDBY LED DRIVE Q951 HCD-HX3/HX5/HX7 (HX3) 76 USB LED USB POWER 28 77 BT LED (HX5/HX7) STBY RELAY 80 78 STBY LED RESET 12 AC CUT 20 XIN XOUT XCIN XCOUT 15 13 10 11 X302 5MHz X301 32.768kHz VBUS +5V (HX3/HX5) BT +3.3V +3.3V REGULATOR IC903 B+ SWITCH Q302, 323, 324 SWITCHING REGULATOR IC319 XM +5.4V (HX7) +3.3V (FOR ADC ) +5V +3.3V REGULATOR IC702 (HX3/HX7) IC702 (HX5) +5.4V REGULATOR IC309 +5V REGULATOR IC308 +9V (FOR HP AMP) +9V RIPPLE FILTER Q305 +9V REGULATOR IC305 VH B+ +7V +3.3V (FOR IC311 -313) +4V +1.5V DVDD +3.3V AVDD +3.3V USB +3.3V +1.8V AMP +3.3V +12V µ-COM +3.3V EVER +3.3V B+ SWITCH IC901-2, Q904, 908 D903 POWER CONTROL SWITCH IC901-1, Q903, 905 +1.5V REGULATOR IC201 D211 D212 D210 (HX3/HX5) B+ SWITCH Q312, 313, 325, 326 D213 B+ SWITCH Q327, 329, 330 +1.8V REGULATOR IC704 (HX3/HX7) IC704 (HX5) (HX3/HX5) D203 D221 DC/DC CONVERTER Q906, 907 HX3: AEP/HX5: AEP, UK/HX7 +7V REGULATOR IC306 +4V REGULATOR IC307 D209 HX3: Canadian/ HX5: Canadian, Australian, Korean D205 - 207 T31 MAIN POWER TRANSFORMER RECT D31 +12V REGULATOR IC12 D652 +27V RECT D32 D33 ISOLATOR PH11 DC DETECT Q651, 652 POWER ON/OFF CONTROL SWITCH Q650 ISOLATOR PH602 SWITCHING Q12 SWITCHING Q11 D14 Q601 D220 D603 RESET SWITCH Q301 RESET SIGNAL GENERATOR IC302 +3.3V FOR ROTARY ENCODER B+ SWITCH Q952 T603 SUB POWER TRANSFORMER SHUNT REGULATOR IC650 ISOLATOR PH601 22 22 16 VG (H) VD 18 15 VS 12 VG (L) 9 OCP 8 VC1 2 F/B 1 VSENSE POWER CONTROL IC11 5 DRAIN 4 VCC POWER CONTROL IC601 2 FB FEED BACK SWITCH Q615 TH1 RECT D1 LINE FILTER T1 F1 (AC IN)