Service manual

Reference Information
Samsung Electronics 2-7
DRAM data bus32 DD9_BI Digital GND (0V)31 DVSS DRAM data bus30 DD5_BI DRAM data bus29 DD10_BI
DRAM data bus28 DD4_BI DRAM data bus27 DD11_BI
Digital power (+5V)26 DVDD DRAM data bus25 DD3_BI DRAM data bus24 DD12_BI
DRAM data bus23 DD2_BI DRAM data bus22 DD13_BI
Digital GND (0V)21 DVSS DRAM data bus20 DD1_BI DRAM data bus19 DD14_BI
DRAM data bus18 DD0_BI DRAM data bus17 DD15_BI
Digital GND (0V)16 DVSS System clock output for 26.16 MHz15 XTO_OUT System clock input for 26.16 MHz14 XTI_IN Digital power (+5V)13 DVDD Micom data bus12 MDAT0_BI Micom data bus11 MDAT1_BI Micom data bus10 MDAT2_BI Micom data bus9 MDAT3_BI
Micom data bus8 MDAT4_BI
Micom data bus7 MDAT5_BI
Micom data bus6 MDAT6_BI
Micom data bus5 MDAT7_BI
Digital GND (0V)4 DVSS Micom register select (L -> Register H -> Data)
3
MRZA_IN
Chip select (Active Low)2 ZCS_IN Digital GND (0V)1 DVSS
FUNCTIONPIN NAME
DVD data/Sub code frame sink (WFSY)65 SDATA5_OUT DVD data/Sub code serial data (SQDT)64 SDATA4_OUT DVD data/CD data error flag (C2P0)63 SDATA3_OUT DVD data/CD data bit clock (BLCK)62 SDATA2_OUT DVD data/CD data L/R clock (LRCK)61 SDATA1_OUT DVD data/CD data bitstream output60 SDATA0_OUT Digital power (+5V)59 DVDD Data acknowledge signal output58 DATACK_OUT Top of sector57 TOS_OUT
Digital GND (0V)56 DVSS
Digital GND (0V)55 DVSS
DRAM address bus54 DADR3_OUT
DRAM address bus53 DADR4_OUT
DRAM address bus52 DADR2_OUT
DRAM address bus51 DADR5_OUT
DRAM address bus50 DADR1_OUT
DRAM address bus49 DADR6_OUT
DRAM address bus48 DADR0_OUT
Digital GND (0V)47 DVSS
DRAM address bus46 DADR7_OUT
DRAM address bus45 DADR8_OUT
DRAM row address strobe44 ZRAS_OUT
DRAM output enable 043 ZOEO_OUT Digital power (+5V)42 DVDD DRAM output enable 1 (16M, --------, 16M)41 ZOE1_OUT
DRAM write enable 0 (4M, 8M, 16M)40 ZWE0_OUT
DRAM write enable 1 (8M ONLY)39 ZWE1_OUT
DRAM upper column address strobe38 ZUCAS_OUT
DRAM row column address strobe37 ZLCAS_OUT
Digital GND (0V)36 DVSS
DRAM data bus35 DD7_BI DRAM data bus34 DD8_BI DRAM data bus33 DD6_BI
FUNCTIONPIN NAME
Digital GND (+5V)97 DVSS System clock output for 33.8688MHz96 CK33MO_OUT System clock input for 33.8688MHz95 CK33MI_IN Digital out92 TX_OUT Good frame sync detection result output (“H” active)
93 GFS_OUT
Frame sync out91 FRSYZ_OUT Digital GND (0V)90 DVSS Digital GND (0V)89 DVSS Digital GND (0V)88 DVSS Digital GND (0V)87 DVSS Digital power (+5V)86 DVDD Digital power (+5V)85 DVDD Digital GND (0V)84 DVSS Digital GND (0V)83 DVSS Digital GND (0V)82 DVSS PWM output signal81 PWM00_OUT PWM output signal80 PWM01_OUT PWM output signal79 PWM02_OUT PWM output signal78 PWM03_OUT Digital power (+5V)77 DVDD PWM output signal76 PWM04_OUT PWM output signal75 PWM05_OUT PWM output signal74 PWM06_OUT PWM output signal73 PWM07_OUT Digital GND (0V)72 DVSS DVD data error output71 DTER_OUT Data request from A/V decoder or ROM decoder70 DATREQ_IN Data strobe (clock) output69
CSTROBE_OUT
Digital GND (0V)68 DVSS DVD data/Sub code serial clock (SQCK)67 SDATA7_BI DVD data/Sub code block sink (S0S1)66 SDATA6_OUT
FUNCTIONPIN NAME
Micom write strobe (schmidt trigger)128 MWR_IN Micom read strobe (schmidt trigger)127 MRD_IN Interrupt request from micom126 ZIRQZD_OUT
Micom read/write access wait (“L” wait)125 ZWAIT_OUT Hardware reset active low124 ZRST_IN
Digital GND (0V)123 DVSS BCA input signal122 BCARZ_IN When DEEMPHASIS is ON, “HIGH”.121 DEMPHA_OUT 2∫–¡÷ clock of CK33M/16.934MHz120 CK16M_OUT
Digital power (+5V)119 DVDD Digital power (+5V)118 DVDD Spindle motor output filter conversion output (3- state)
115
FSW_OUT
Digital power (+5V)117 DVDD EFM/EFM+ signal input116 EFMI_IN Reference signal for CAV114 FG_IN Spindle motor ON/OFF control output113 MON_OUT Spindle motor speed control signal (3-state)
110 MDS_OUT
Spindle motor phase control signal (3-state)
109 MDP_OUT
Digital GND (0V)112 DVSS Digital GND (0V)111 DVSS Lock signal for SERVO108 SERLOCK_OUT Lock signal for CLV107 CLVLOCK_OUT Lock signal for PLL106 PLLLOCK_OUT
Digital GND (0V)105 DVSS Phase locked clock104 PLCK_IN Reference frame pulse103 RFCK_OUT
Write frame pulse102 WFCK_OUT
EFM out101 EFMO_OUT
Test mode setting port100 TEST2_IN
Test mode setting port99 TEST1_IN Test mode setting port98 TEST0_IN
FUNCTIONPIN NAME
Digital GND (0V)94 DVSS