Philips CDR570, Service Manual

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List of Abbreviations GB 56 CDR570/930 9.
SIN+ CONN1220 Æ IC7225A Hall feedback signal from sledge motor
SL- IC7240 Æ R3265 Æ CONN1220 SLedge motor drive signal negative connection
SL+ IC7240 Æ CONN1220 SLedge motor drive signal positive connection
SRSTN IC7270 Æ R3243B, IC7300 Slave ReSeT out (CDR60 reset), active low
STANDBY IC7270 Æ R3807 Æ R3887 Æ IC7701 STANDBY pin, high level activates essential powers necessary for full
function; overrules HI_POWER setting
SUB IC7701 Æ R3710 Æ IC7300 EIAJ subcode data from DASP to CDR60 (CD text interface)
SYS_CLK_11W IC7701 Æ R3732 Æ IC7406 11.2896 MHz SYStem CLocK for AD/DA datapath
SYS_CLK_16W IC7701 Æ R3894DÆ IC7706A 16.9344 MHz SYStem CLocK for producing SYS_CLK_BE
SYS_CLK_8W IC7706A Æ R3815 Æ CONN1708 SYstem CLocK CD player (8.4672 MHz) (CDR775 only)
SYS_CLK_BE IC7706A Æ R3826 Æ IC7270 SYstem CLocK Basic Engine (8.4672 MHz)
SYS_RESET IC7701 Æ R3758 Æ CONNF934IC7701 Æ
R3770 Æ T7707 Æ CONN1708 SYStem RESET to display assy (and CD player for CDR775)
TCK CONN1819 Æ R3906, IC7701 JTAG ClocK signal
TDSO IC7701 Æ CONN1819 JTAG Serial Data Out / debug data out
TERMB IC7270 ´ CONN1818 UART connection with MACE
TLN IC7010 Æ IC7270 Track Loss Normalized current output
TR- IC7240 Æ CONN1200 TRay motor drive signal negative connection
TR+ IC7240 Æ CONN1200 TRay motor drive signal positive connection
TRACE99_RXD CONN1818 Æ R3838, IC7701 TRACE99 test tool receive data
TRACE99_TXD IC7701 Æ CONN1818 TRACE99 test tool transmit data
TRAYIN IC7270 Æ IC7240 move TRAY IN line, active low
TRAYOUT IC7270 Æ IC7240 move TRAY OUT line, active low
TRAYSW CONN1200 Æ R3747CONN1200 Æ R3748 TRAY SWitch signal from loader assy
TRAYSWF R3748, C2214 Æ IC7270 Filtered TRAY SWitch signal, low is completely out or in
TXD_TOOL IC7701 Æ CONN1818 Transmit of UART for test TOOL
U+, U-, V+, V-, W+,
W- CONN1330 Æ IC7330 hall feedback signals from turn table motor to hall motor driver
UCOIL, VCOIL,
WCOIL IC7330 Æ CONN1330 drive signals for turn table motor
VCAGAIN IC7016 Æ IC7005A set-point laser power on disc, voltage output
VDC1 CONN1500 Æ CONNF934 supply voltage for display assy
VDC2 CONN1500 Æ CONNF934 supply voltage for display assy
VFO IC7270 Æ R3295 Æ R3244 FOcus actuator drive output
VFTD CONN1500 Æ CONNF934 Voltage Fluorescent Tube Display (display assy)
VRA IC7270 Æ R3297 Æ R3254 RAdial actuator drive output
VSL IC7270 Æ R3299 Æ IC7240 SLedge actuator drive output
WCLK IC7701 Æ R3898B Æ IC7300 I2S1 WordCLocK from DASP to CDR60 (playback and record)
WOBBLE IC7050C Æ IC7300 analog WOBBLE signal of pre-groove detected by PPN-signal
WPON IC7008 Æ R3009IC7008 Æ C2009 Write Power ON
WPONO IC7008 Æ R3106 Write Power ON Open drain output
WPONRC R3003 Æ CONN1000 Write Power ON (after RC circuit)
XDAC multiplying DAC
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