FILE .NO Service Manual Portable VCD/CD Player VCD-X220 Specifications PRODUCT CODE No. 1 164 160 00 VCD-X220 (SS) System Compact disc digital audio/video system (When you use the VIDEO CD player on a flat Battery life and stable surface.) Material: GaAIAs (approx.
PARTS LIST PRODUCT SAFETY NOTICE EACH PRECAUTION IN THIS MANUAL SHOULD BE FOLLOWED DURING SERVICING. COMPONENTS IDENTIFIED WITH THE IEC SYMBOL IN THE PARTS LIST AND THE SCHEMATIC DIAGRAM DESIGNATED COMPONENTS IN WHICH SAFETY CAN BE OF SPECIAL SIGNIFICANCE. WHEN REPLACING A COMPONENT IDENTIFIED BY , USE ONLY THE REPLACEMENT PARTS DESIGNATED, OR PARTS WITH THE SAME RATINGS OF RESISTANCE, WATTAGE OR VOLTAGE THAT ARE DESIGNATED IN THE PARTS LIST IN THIS MANUAL.
BLOCK DIAGRAM IC 901 WV2621 LCD Driver + Function U4, U5 M11L416256SA SDRAM VIDEO CS8553 LS-188 OUTPUT TV ENCODE VCD Decode U6 W27C020P EP ROM U8, U10 Mech BA4510 TZA1024 AUDIO Deck OUTPUT BH4453 Optic system SAA7324H/M2B POWER AMPLIFIER DSP and DAC System U1 BH6575 Motor driver + SVCC 3.3V...
IC BLOCK DIAGRAM & DESCRIPTION U1 BH6575FV (POWER CONTROLLER) Symbol Description Symbol Description START DC/DC converter starting terminal PVCC H-bridge power supply input terminal DC/DC converter OFF terminal OUT2- CH2 negative output External clock synchronization input terminal OUT2+ CH2 positive output MUTE34 CH3,4 mute terminal OUT1-...
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IC BLOCK DIAGRAM & DESCRIPTION U2 TZA1024 (OPTICAL SYSTEM) V DD V DD 1× CDRW EQSEL RFFB 4× RFEQO 2× CMFB TZA1024 V GAP RGADJ CFIL V DD PWRON MGR517 V DD(L) Symbol Description Symbol Description current output to laser diode CMFB common mode feedback voltage input VDD(L)
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IC BLOCK DIAGRAM & DESCRIPTION U3 LS188 (VCD ENCODE) Symbol Description Symbol Description GPIO_8 programmable I/O 8 VDD_PLL_0 System PLL power supply GPIO_7 programmable I/O 7 DR_D_6 DRAM Data Bus 6 GPIO_6 programmable I/O 6 DR_D_9 DRAM Data Bus 9 GPIO_5 programmable I/O 5 DR_D_7...
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IC BLOCK DIAGRAM & DESCRIPTION U9 SAA7324 (DAC SYSTEM) V SSA2 V DDA2 V SSD2 V DDD1(P) V SSA1 V DDA1 V SSD1 V SSD3 V DDD2(C) D1 D2 PRE- CONTROL PROCESSING FUNCTION OUTPUT STAGES V ref V RIN GENERATOR CONTROL PART LDON...
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IC BLOCK DIAGRAM & DESCRIPTION U10 BH4453F (POWER AMP) Symbol Description Symbol Description OUT1 Output 1 terminal Input 2 terminal MUTE Mute control terminal (mute = low) BIAS BIAS terminal Input 1 terminal OUT2 output 2 terminal Ground Power supply U12 CS8553 (TV ENCODE) H, V-SYNC SUB-CARRIER...
LCD DISPLAY DESCRIPTION WIRING CONNECTION CD MECHANISM KEY PCB MAIN PCB...
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VOLTAGE OF IC & TRANSISTOR U1 BH6575FV (POWER CONTROLLER) 0.04 U2 TZA1024 (OPTICAL SYSTEM) U3 LS188 (VCD ENCODE) PLAY CD PLAY MP3 PLAY VCD PLAY CD PLAY MP3 PLAY VCD PLAY CD PLAY MP3 PLAY VCD PLAY CD PLAY MP3 PLAY VCD PLAY CD PLAY MP3...