Cpu1 L6751 Controller - EUROCOM P270WM Service Manual

CPU1 L6751 Controller

VSA Compensation Network
SRGND
DIFFERENTIAL PAIRs
GLOOP PR72
PROBE 100_1%_04
POINT VSS_VSA_SENSE 9
VSA_SENSE 9
SFBR PR251 0_04
PR73
100_1%_04
V_CPU_VCCSA
PR257 PR265 PR266 4.7n
2.2K_04 0_04 2.7K_1%_04 PC233
4700p_50V_X7R_04
PR264
470_1%_06
PC227 PR221
PC232 47p_50V_X7R_04 300_1%_04
100p_50V_NPO_04
PR258
*10K_1%_04
PC235
0.1u_10V_X5R_04 PC94
2200p_50V_X7R_04
VCC Compensation Network
RGND
PR70
100_1%_04 DIFFERENTIAL PAIRs
PR111
FBR 0_04
PR71
PR229 100_1%_04
FBR LTB
680_1%_04
PR116
PC213 27K_1%_04
330p_50V_X7R_04
4.7n
PR118 PR117 PR242
1.1K_1%_04 270_1%_04 10K_1%_04
PC220
3300p_50V_X7R_04
PR233
56_1%_04 PR225
PC219 8.2K_1%_04
PC216 PR243 33p_50V_NPO_04
470p_50V_X7R_04 1K_1%_04
LTB
PC208
PR230
4700p_50V_X7R_04
*0_04
PC221
3300p_50V_X7R_04
SVI BUS (37.5MHz!!)
V_CPU_VTT
PR129 PR130 PR107
51
PR137
100_1%_04 *56_04 4.7K_1%_04
56_04
33,51
SVDATA
SVIDDATA 5,46
SVIDALERT_N
SVIDALERT_N 5,46
SVCLK
PR100
SVIDCLK 5,46
VRHOT PR317 *0_04 *12.7K_1%_04
PROCHOT_N 5
D03-0929J
Add
3.3V
PR222
PMBUS
10K_1%_04
PR259 PR136 PR260
*1K_04 *1K_04 *1K_04
IMON
SMB_DATA_MAIN
SMB_DATA_MAIN 6,18,25,30,37,46,51
SMALERT#
SMALERT# 25
SMB_CLK_MAIN
SMB_CLK_MAIN 6,18,25,30,37,46,51
PR134
2K_1%_04
STM
VDRV
PR122 2.2_06
12V
PC228 PR253
100K_04
VCC5 PR250 2.2_06
5V_P
D03-1005R
Modify
GDC
PR135
PC231 PC225 PC226
0_04
IC Power Supply
and GDC
SREF Filter as close to IC
as possible!
SVR_RDY 47
PC91
0.068u_10V_X7R_04
PU17
PWM3 1
PWM3
2
PWM2
PWM2 BOOT/TMAX
PWM1 3
4 PWM1 SVDATA
PHASE_VCORE
PHASE ALERT#
SVCLK
VR_RDY 5
6,41 VR_RDY
6 READY ENVTT
GND
GND
CS6N 7
8 CS6N
CS6P
CS6P
CS5P 9
VSS_VCC_SENSE 9 CS5P STCOMP
CS5N 10
VCC_SENSE 9 CS5N
CS4N 11
CS4N
CS4P 12
13 CS4P
CS3P
VCORE CS3P SMCLK
CS3N 14
CS3N SMALERT#
15
CS2N
CS2N SMDATA
CS2P 16
CS2P
CS1P 17
CS1P IMAX/SIMAX
REF
CS1N 18
CS1N SCOMP
VCORE_ON/ALLSYS_PWR_GD
IC ENABLE
V_CPU_VTT
CHECK CLOSE PAD
PR132 PIN Strapping
*10K_04 PR112
PJ12 *OPEN_40mil ENVTT
VTT_PGD
PR74 *0_04
VCORE_ON
PR248 FSW
*59K_1%_04
5V_P 5V_P
Definition
D03-1005R D03-1005R
Modify Modify
PR120
PC204 PC223
PR249 PR133 PR99
49.9K_1%_04 62K_1%_04 62K_1%_04
D03-1006R
Modify
5V_P
D03-1005R
Modify
PR318 *0_06
5VS
PR105
5V_P
2K_1%_04 5V_P PR319 0_06
5V
SNTC1 53
TM SCSN
SNTC2 53 NTC1 53
PR245
NTC2 53
1K_1%_04
PC207 PR224
100K_04 SCSP
PC103
0.1u_10V_X5R_04
VSA
PR223
VCC
THERMAL SENSING
0_04
THERMAL SENSING
PR220
1.8K_1%_04
CS1N
CS1P
PR209
1.8K_1%_04
CS2N
CS2P
PR210
1.8K_1%_04
CS3N
CS3P
PR213
53 VCC5 1.8K_1%_04
VCC5
CS4N
CS4P
52
BOOT/TMAX PR214
51 SVDATA
PR309 0_04 1.8K_1%_04
50
PR310 0_04 SVIDALERT_N CS5N
49 PR131 150_04 SVCLK
48 ENVTT CS5P
PR219
47 VIN_CPU
1.8K_1%_04
VIN 46
OSC CS6N
OSC
45 STCOMP
44 STM CS6P
STM
43 ADDR
ADDR
42
NC 41
SMB_CLK_MAIN
40 SMALERT#
39
SMB_DATA_MAIN
38 GND
GND
37 IMAX/SIMAX
69 GND
EPAD
36 SCOMP
PR238
L6751A
SPHASE = ILIM in ILIMIT
PR216
Rev1.4 (Stuff
PHASE_VCORE
PR255
Capacitor, un-stuff
VIN_CPU
RSPH_H) PC212
PR231 PR207 PR254
10n
18K_1%_04 475_1%_04 10K_1%_04
0718J Thermal Compensation
VCC5 VCC5
VCORE boot ¹qÀ£§ï¬° 0V
PR263 PR114
12K_1%_04 12K_1%_04
VCC5
STCOMP TCOMP
PR138 PR252 PR244 PR113
PR115
PR262
10K_1%_04 6.8K_1%_04
IMAX/SIMAX
ADDR
BOOT/TMAX
DPM12/23
DPM34/56
PR261 PR256 PR247 PR121
Schematic Diagrams
SPH_VOUT 53
PC100
SPH_PHASE 53
0.022u_16V_X7R_04
PR239
21K_1%_04
VSA
CURRENT SENSE
PH1_VOUT 53
PC87
PH1_PHASE 53
0.022u_16V_X7R_04
PR217 13K_1%_04
Sheet 52 of 63
PH2_VOUT 53
PC86
PH2_PHASE 53
0.022u_16V_X7R_04
PR208 13K_1%_04
CPU1 L6751
PH3_VOUT 53
PC83
PH3_PHASE 53
0.022u_16V_X7R_04
Controller
PR211 13K_1%_04
PH4_VOUT 53
PC82
PH4_PHASE 53
0.022u_16V_X7R_04
PR212 13K_1%_04
PH5_VOUT 53
PC79
PH5_PHASE 53
0.022u_16V_X7R_04
PR215 13K_1%_04
PH6_VOUT 53
PC90
PH6_PHASE 53
0.022u_16V_X7R_04
PR218 13K_1%_04
D03-1005R
Modify
VCC
CURRENT SENSE
*300_1%_04
SPH_PHASE 53
5.6K_1%_04
PH1_PHASE 53
120K_1%_04
12V
PC230
MONITORING INPUT
0.1u_16V_Y 5V_04
CURRENT/VOLTAGE
PWM Gate Drive
probe points
SENDRV
SENDRV 53
SPWM
SPWM 53
ENDRV
ENDRV 53
PWM1
PWM1 53
PWM2
PWM2 53
PWM3
PWM3 53
PWM4
PWM4 53
PWM5
PWM5 53
PWM6
PWM6 53
CPU1 L6751 Controller B - 53