HP LAPTOP Schematics

INTERSOFT MOBILE, LAPTOP REPAIRING INSTITUTE 9824144698 (0261) 2424396

INTERSOFT INSTITUTE

HP laptop notebook power leakage BBHP timing

Notebook , timing , BBHP , leakage

Electrical maintenance on the motherboard:

1. the electrical timing
When we plugged in Adapter19VIN, the power flows to have a 5VPCU, 3VPCU voltage,
it is by the PU10 (MAX1999) automatically generated, then the machine is in standby
mode.

When we press the Power Button, NBSWON # moment there is a low level, which gave
low 97551,97551 received signal to generate signals DNBSWON #, DNBSWON
distributed to South Bridge, also issued S5-ON 11
ON input PQ128 PQ132 generated through S5-OND.

S5-OND and PQ141 PQ127 were generated by 5V_S5 and 3V_S5.

3V_S5, 5V_S5, 1.5V_S5 time power to the South Bridge.

"s-P% A8` * a # j: @ -K5 L

th

pin to 1845 produce 1.5V_S5. S5-

South Bridge received DNBSWON low, it occurs SUSB #, SUSC # 2 high sent to 97551,

97551 received SUSB #, SUSC # after have had a SUSON, MAINON #, VRON. SUSON
signals into SUSD signal sent PQ143, PQ145 tube arises 3VSUS, 5VSUS, and SUSON
sent to MAX1845 generate 2.5VSUS.

MAINON # generated by PU7 SMDDR-VTERM. At the same time and by PQ119 PQ125
into MAIND send PQ143, PQ145, PQ148, PQ153 produce +3 V, +5 V, +2.5 V, +1.5 V
voltages.

VRON gave PU9 (MAX1907), PU5 (1992E) generated VCC-CORE and VCCP voltage.
PU6, PU4 signals generated HWPG to 97,551, then PU3, PU5 also various feedback
signals to generate a HWPG 97551.

At this point the M / B of the main voltage in each group have been OK back HWPG
voltage feedback signal with convergence, the equivalent of a HWPG "and" relationship,
such as including any group for the low feedback HWPG this POWER OK 97551 occurs

when the instruction to turn off opening of voltage, such as the OK is HWPG constant as
high as 97,551, after receiving HWPG produce PWROK signal sent to SB Southbridge,
Southbridge SB produced after the PCI RST # generated through U42 PCIRST # passed to
North Bridge. North Bridge before they produce the CPURST #. Signal

description, ^ & b: v3 (0 G

The IC has the engine, Album Download 4.5V to 24V input voltage range, 1.5% output
voltage accuracy, 3.3V and 5V two modules, with software control within the opening,
closing fast power management system and over-voltage protection function.

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INTERSOFT MOBILE, LAPTOP REPAIRING INSTITUTE 9824144698 (0261) 2424396

Main fault: 3VPCU or 5VPCU bad output (usually board plug 19vin, there are two voltage
output)

1. VIN_1999 input 19V voltage problems.

2. Test 8 pin reference voltage is 2V.

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3. Check whether PQ103 PQ101 or bad. % Y5 C4 V6 h7 ^ 'S $ X

4. Measured with a Multimeter or 5VPCU 3VPCU ground impedance, small or short­circuit impedance for RMA board, the general line of parts for the burn. (PU10, PQ101,
PQ103, PQ104, PQ102, PQ105, U23, etc.).
Signal description

'' ^ & D & ^ 2 D O # ~. `2V

/ | + l & U j' o; t! |

The IC is a voltage generated 2.5VSUS and 1.5V_S5 two groups, in 19VIN added after
S5_ON, SUSON under normal circumstances, the two signals, that can generate the two
voltages.

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Main fault: 2.5VSUS or 1.5V_S5 output bad (not voltage output and low). ) C2 Z. e + @ 0 d "d. u * Z! |

1. VIN_1845 input 19V voltage problems.

2. Open bad.

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3. S5_ON, SUSON poor or no signals sent 1845IC. . O & z(b8 J8 X

4. 2.5 VSUS and 1.5V_S5 two smaller voltage-to-ground impedance or short circuit, for
the RMA board, the general line of parts for the burn (PU5, PQ82, PQ99, PQ83, PQ106,
PQ87, U16)

Signal description!
is the speed of the IC chip power management control, supply CPU CORE voltage, can
automatically correct the offset, ± 0.75% output voltage accuracy, a 0.700V-1.708V to
voltage output range, 2V-28V power supply input voltage range and output over-voltage
protection function.

(D "\# z4 R + V" A6 T

Main fault: Insert Shenyang Rittal Cabinets CPU no voltage output. 7 k "? & F2 A3 y / d! O

1. VIN19V no input, PL12, PL18 bad. 0 W2 D9 ((f * z

2. PQ107, PQ108, PQ109, PQ110 bad. `; B0 H:)

3. 5 VPCU not enter into MAX1907IC the 30PIN.

4. Control signal VRON, STP-CPU, DPRSLPVR, PWROK problems.

5. CPU_VID0-5 signal not sent to the MAX1907.

6. MAX1907

bad., ^! P) I3 A! | # \5 s / @ 9 m

7. Peripheral resistance, capacitance, diode and circuit problem.
Corresponding voltage generated the following way:

1. 5 VSUS issued by PC97551 SUSD signal to control PQ105 (4812IC), from the
conversion over from 5VPCU

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INTERSOFT MOBILE, LAPTOP REPAIRING INSTITUTE 9824144698 (0261) 2424396

2. +5 issued by PC97551 MAIND signal to control PQ105 (4812IC), conversion from
5VPCU over the.

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3. 3 VSUS: PC97551 issued by SUSD signal to control PQ102 (4812IC), conversion from
3VPCU them there.

4. +3 V: issued by PC97551 MAIND signal to control PQ102 (4812IC), conversion from
3VPCU them there.

5. +1.5 issued by PC97551 MAIND signal to control the PQ87 (4800IC), conversion from

1.5V_S5 them there.

2] * e, Y1 ^ 8 j $ y; V $ y) (. T

6. 1.2 V: is the +5 V through PQ113, PQ112, PU6B and 1845REF2V signal to control the
PQ89 (4800), from 1.5V_S5 convert them there.

7. VCCP is VRON by PQ91, PQ90, PU6A and 1845REF2V signal to control the PQ88
(4800), from 1.5V_S5 convert them there.

SMDDR_VTERM (1.25V issued by PC97551 MAIND signal to control PU7
(LP2996IC), conversion from 2.5VSUS them there.
from the 97,551 issued S5_ON signals PQ73-PQ70-PQ70 parts produced S5_OND signal
to control PQ100 the first 3 PIN, from 3VPCU conversion over the.

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One main voltage: 19VIN: the total power input. . K6 h M P7? 2] 7 L
5VPCU: MAX1999IC generated. * ^ 7 s5 @ 8 b / a! W8)
3VPCU: MAX1999IC generated. Generated. "C; b6 r" Q & i) u) B

1.5V_S5: MAX1845IC generated. ) J8 _ d 'l $ C * R3 w
CPU CORE: MAX1907IC generated. + ~ 1 ^ 7 d: L # O0 b "r

Some of the main power is not the point of failure: 9 N% w / y * Q, e; J & ^ 7 `

1. 0.001 A current fixed: generally 3VPCU, 5VPCU, 19VIN problems.

A current fixed: 3VPCU, 5VPCU, 19VPCU normal, 2.5VSUS, 1.5V_S5, +5 V, +3 V,

1.5V, 1.2V, 1.05V whether short circuit.

General short-circuit condition: 5VPCU ground short circuit, MOSFE tube, MAX1999
3VPCU ground short circuit, MOSFE tube, MAX1999, 97551 chips.
First horse on the ground a short chassis Road, South Bridge bad.

- To ground short circuit, Northbridge bad
A current fixed: 3VPCU, 5VPCU, 19VPCU normal, generally bad for the BIOS, 9

7551, South Bridge.

1 | 'C / i "M, f-x" \/ K1 z: x * H (A

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INTERSOFT MOBILE, LAPTOP REPAIRING INSTITUTE 9824144698 (0261) 2424396

4, a plug power supply, current has been increased from 0.002A to zero a few amps,
usually 97551 chip burned. (97 551 poor, the temperature is high, hope the
maintenance of attention, to avoid burns).
high-current, generally short, carefully measuring the voltage of each group on the
ground impedance, replacement parts excluded failure.

3 m7 [/ [ . l! o +] -k4 G

POST self maintenance: self-test process
POST self-test code table:

- A system does not boot: DEBUG CARD run 00 of the state.

1. the first of each group should measure the voltage supply is

/ A. U! E2 S5 [$ l' m 'k, A

normal..? 1 s) Y) P3? O-v% l

2.and then check whether the circuit and chip fat, warm, odor and other anomalies,

timely treatment.

3. E clock IC clock signal is sent to the pin on each chip.

4. easure the chip RESET signal is sent or received.

5. Lace the BIOS.

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6. the main signal for the measurement:R 'j $ P' W7 n / C0 a) `

1). with empty CPU socket board installed in the machine, check the CPU to the

Northbridge Block signal impedance:

- # 3-31 address signal, HD # 0-63 data signals, ADS address status, and control

signals, determine whether the CPU and North Bridge air welding, poor

- 2). North Bridge main signal check: HL0-10 South Bridge HUB bus interface

connectivity.

- South Bridge, the main signal checking: AD0-31 composite address data signal line,

C/BE0-3 bytes to allow the signal line, the control signal line, LAD0 -3 + LDRQ0 +
LFRAME # even the
bus interface.

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case in which the hard disk access 97,551 chips in the LPC

4). MINI PCI slot on the PCI bus can be measured to check the appropriate bus
plug-in circuit.

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5). 97 551 chip, the signal inspection: LAD0-3 + LDRQ0 + LFRAME # signal.

6). BIOS checks on the signal: A0-19 address lines, D0-7 data lines, CS # chip
select signals, RD # read the signal, WR # write signal and power ground.

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7). Try to make it clear fault region, to facilitate maintenance.
If the above does not find problems, from the perspective of poor parts replacement
parts to repair.

Memory does not boot: DEBUG CARD running 28, 38 and so on.

1. Mainly the memory part.

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INTERSOFT MOBILE, LAPTOP REPAIRING INSTITUTE 9824144698 (0261) 2424396

2. BIOS can also cause bad run of 38. / N0 w4 b: h-U $ v) g0 J 'P

3. The memory part of the main North Bridge Control: R_MD0-63, R_MA0-12,

R_SM_DQS0-8, SM_B1-5, SM_CS0-3, M_DM0-8,
CKE0-3, CLK_SDRAM0-4 and other signals.

4. In the inspection process must be carefully measured: North Bridge - exclusive group

- the memory slot of the signal, open circuit, short circuit and other undesirable

phenomena.

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5. Check SMDDR_VREF reference voltage is normal.

6. Northbridge, memory slots: empty and bad welding, welding or replacement

material.

- Shown: DEBUG CARD running 59, 69 and so on.

1. Northbridge peripheral circuits for voltage

problems.: K3? 4 N5 p8 c6 y6 [/ p

2. Northbridge bad.

3. Clock parts and clock IC bad.

4. U15, CH7015IC bad.

3 q / s6 f1 j6 s' _2 g% ^

FUNTION poor maintenance of the function:, |%?! K + M; @ 'U

1. Battery charge and discharge bad: PQ45, PQ44, PQ42 poor more.

2. 5 IN 1CARD bad: bad need of replacement slot; slot in the foot air welding; lines
and for the voltage problems; PCI7411 chip air welding and bad need of
replacement.

3. Bad: Interface bad need of replacement; 1394 24.576 MHZ clock is the official

website

from the first horse chassis vibration; PCI7411 chip problem. 1 \% r2 _ (O $ Z

4. CARDBUS bad: Interface problems; PCI7411 chip problem.

5. USB bad: Line Interface problems; Southbridge bad.

6. LAN bad: Interface loose dirt poor replacement; U18IC impedance bad; clock
could not afford to vibration; chips RTL8100 bad; around bad filter capacitor
leakage.

7. MODEN and sound bad: MU2 chip bad; power supply; clock; amplifier and line.
MU1 and peripheral circuits.

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8. HDD bad: Interface circuit; Southbridge bad. / Q! U! J: v! X

9. CD-ROM bad: Interface circuit; Southbridge bad. [; Z, X + p: W' P7 Y

10. KEYBOARD bad: bad interface circuit; Pai Yung CP1-6 poor; 97551 chip, bad;
BIOS program problems, need to replace the BIOS. 4

11. TOUCH PAD bad: bad interface circuit; 97551 chip bad.

12. FAN bad: Interface, Q11, Q12, and the 97551 chip bad.

H.O Opp wow collection, Bhagatalao Main road, Surat Page no :-5