Panasonic CF-18 Service Manual ▷ View online
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Main 31 2.5V 1.25V DC/DC
R349
4.7K
1%
DCIN&BATT
C468
10u
10u
25V
B
3225
C451
NU
LTC1778EGN#TR
IC51
LINEAR TECH.
SSOP16(1.75mH)
1 RUN/SS
2 PGOOD
3 VRNG
4 FCB
16
BOOST
15
TG
14
SW
13
PGND
5 ITH
6 SGND
7 ION
8 VFB
12
BG
11
INTVCC
10
VIN
9
EXTVCC
SLP_S4#
010:F3;018:F4;035:A3;035:B9;035:D3
R353
0
0
R354
NU
NU
C465
0.22u
0.22u
2125
R348
0
C462
NU
NU
C446
470p
2SK3019TL
Q49
2
3
1
50V
C464
0.1u
0.1u
1608
R358
10K
1%
R351
NU
VB5
C463
0.01u
0.01u
R350
NU
NU
C450
100p
6.3V
C469
10u
10u
2125
919AS-4R7M=P3
L27
1
2
PGND
R360
10
10
R352
22K
VB25
R359
1M
FDS6690A
Q51
Fairchild
SOP8
Nch-MOSFET
1 S
2 S
3 S
4 G
8
D
7
D
6
D
5
D
FDS6690A
Q50
Fairchild
SOP8
Nch-MOSFET
1 S
2 S
3 S
4 G
8
D
7
D
6
D
5
D
SGND
C445
4700pF
B
1608
6.3V
C466
10u
10u
2125
UNR9213J0L
Q48
Q48
3
1
2
R347
470K
DCIN&BATT
LTC3413EUH#TR
IC52
LINEAR TECH.
TSOP16(1.15mH)
1 SVIN
2 PGOOD
3 ITH
4 VFB
16
PVIN
15
SW
14
SW
13
PGND
5 RT
6 VREF
7 RUN/SS
8 SGND
12
PGND
11
SW
10
SW
9
PVIN
A915AY-1R1M=P3
L26
1
2
PGND
PGND
PGND
PGND
VB25
R355
5.1K
R357
1M
C447
220p
R356
330K
VC125
C448
2200pF
B
1608
C449
100p
SGND
MEMREF
NJM12904V(TE1)
IC53
-
2
1
O
+
3
NJM12904V(TE1)
IC53
-
6
7
O
+
5
NJM12904V(TE1)
IC53
V-
4
V+
8
VB25
SGND
VB5
SGND
EC10QS04-TE12L
D22
2
1
RB500V-40TE-17
D21
1
2
R361
10K
1%
R362
10K
1%
DCIN&BATT
R187
470K
UNR9213J0L
Q13
Q13
3
1
2
2SK3019TL
Q18
2
3
1
SLP_S3#
4;022:F3;023:H5;024:D8;035:A5;035:B11;035:D5
MEMREF_DIMM
R188
10K
1%
VB25
SGND
R189
10K
1%
C3
0.1u
0.1u
4V
C471
150uF
150uF
SPCAP
D
EEFUD0G151R
+
4V
C470
NU
NU
SPCAP
D
EEFUD0G151R
+
R548
10
10
R549
10
10
2V
C467
180u
180u
SP-CAP
EEFUD0D181R
+
VB25/VC125
VC125=1.25V
r62.5mV@1.5A
VB25=2.5V
r125mV@6A
Vout=0.8*(1+RH/Rl)
Vref=0.792
㨪0.808V
RH=9.9
㨪10.1Kohm
RL=4.653
㨪4.747Kohm
Vout=Vref*(1+RH/RL)
Vout=2.4437
Vout=2.4437
㨪2.5619V
(SPEC Vout=2.375
㨪2.625V)
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B
C
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E
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H
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Main 32 1.5V DC/DC
R424
13.3K
1%
R422
10K
R423
15K
1%
C512
NU
C518
10u
2125
LTC1772
IC55
LINEAR TECH.
SOT23-6
4
SENSE-
5
VIN
6
PGATE
3 VFB
1 ITH/RUN
2
GND
A915AY-4R7M=P3
L40
1
2
VC3
VC15
2V
C523
100u
100u
SP-CAP
D
EEFCD0D101R
+
C396
NU
C520
220p
R417
47m
2012
5%
1/4W
3LN01S-TL
Q45
2
G
3
D
1
S
MCH_OK
029:A4;030:C9;032:E8
R210
100K
100K
VA3
R254 1K
VC3_GMCH
C369
0.01u
0.01u
VC15_GMCH
3LN01S-TL
Q82
2
G
3
D
1
S
R261
1M
C375
0.01u
0.01u
C376
NU
NU
FDN359AN
Q91
2
3
1
DCIN&BATT
MCH_OK
029:A4;030:C9;032:B8
R255
1M
1M
VC15
TPC6104(TE85L)
Q28
SOT6
Pch-MOSFET
1
D
2
D
3
G
6 D
5 D
4 S
TPC6104(TE85L)
Q46
SOT6
Pch-MOSFET
1
D
2
D
3
G
6 D
5 D
4 S
RB081L-20TE25
D27
2
1
UNR9113J0L
Q90
3
1
2
IO
1.5V (max 1.5A)
VC15=1.5
r75mV@2.5A
GMCH Eratta
Vref=0.78
㨪0.82V
Rh=13.167
㨪13.433Kohm
Rl=14.85
㨪15.15kohm
Vout=Vref*(1+RH/RL)
Vout=1.4579
Vout=1.4579
㨪1.56175V
(SPEC: 1.425
㨪1.575V)
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C
D
E
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H
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Main 33 3.3V 5V DC/DC
DCIN&BATT
DCIN&BATT
DCIN&BATT
VA3
VA5
FDS6912A
Q55
Fairchild
SOP8
Nch-MOSFET
1 S1
2 G1
3 S2
4 G2
8
D1
7
D1
6
D2
5
D2
FDS6912A
Q52
Fairchild
SOP8
Nch-MOSFET
1
S1
2
G1
3
S2
4
G2
8 D1
7 D1
6 D2
5 D2
2SK3019TL
Q54
2
3
1
C481
1000p
C489
1000p
INTVCC2
INTVCC2
C479
NU
C491
NU
R389
33m
2125
5%
1/4W
50V
C480
0.1u
0.1u
1608
R373
10
50V
C477
0.1u
0.1u
1608
50V
C487
0.1u
0.1u
1608
50V
C478
0.1u
0.1u
1608
50V
C490
0.1u
0.1u
1608
VA5
R374
15K
15K
R375
10K
10K
R376
NU
R377
0
R385
10
R384
10
R371
10
R372
10
2SK3019TL
Q56
2
3
1
C476
10u
25V
B
3225
C492
10u
25V
B
3225
C482
22p
1005
R380
10K
1005
C483
220p
1005
C484
220p
1005
R381
10K
1005
C486
22p
1005
IC59
LTC3728LXCUH
32QFN(0.75mmH)
LINEAR TECH.
2
PLLFLTR
3
PLLIN
4
FCB
5
ITH1
6
SGND
7
3.3VOUT
8
ITH2
9
VOSENSE2
10
NC
11
SENSE2-
12
SENSE2+
13
RUN/SS2
14
TG2
15
SW2
16
NC
17
BOOST2
18
BG2
19
PGND
20
INTVCC
21
EXTVCC
22
BG1
23
VIN
24
BOOST1
25
SW1
26
TG1
27
PGOOD
28
RUN/SS1
29
NC
30
SENSE1+
31
SENSE1-
32
NC
1
VOSENSE1
C485
10u
10u
2125
R388
33m
2125
5%
1/4W
UNR9213J0L
Q53
Q53
3
1
2
DCIN&BATT
C475
NU
NU
10V
R368
13K
13K
R3111N271A-TR
IC56
RICOH
1
VOUT
5
NC
2 VCC
4 NC
3 GND
R366
5.6K
5.6K
R369
47K
R370
470K
DCIN&BATT
LTOFF2#
LTOFF2#
B1000AS-100M=P3
L29
8.1x8.0x5.0
1
2
919AS-100M=P3
L28
1
2
R382
30K
1%
30K
1%
R383
10K
1%
10K
1%
R379
20K
1%
1%
R378
5.6K
1%
EC10QS04-TE12L
D26
2
1
EC10QS04-TE12L
D23
2
1
R540
100K
1%
R541
1.5K
1%
1.5K
1%
R545
NU
R544
NU
RB717FT106
D25
A
2
A
1
C
3
R363
22m
2125
5%
1/4W
R364
22m
2125
5%
1/4W
4V
C493
150uF
150uF
SPCAP
D
EEFUD0G151R
+
6.3V
C473
100uF
100uF
SPCAP
D
EEFUD0J101R
+
6.3V
C474
NU
NU
SPCAP
D
EEFUD0J101R
+
R365
5.6K
5.6K
3.3V/5V
5V
Iocp=62mV/Rsense
=3.758A
=3.758A
Imax=50mV/Rsense
=3.030A
=3.030A
Imax=50mV/Rsense
=3.030A
=3.030A
Iocp=62mV/Rsense
=3.758A
=3.758A
Vref=0.788
㨪0.812V
RH=104.544
㨪106.656Kohm
RL=19.8
㨪20.2Kohm
Vout=Vref*(1+RH/RL)
Vout=4.8662
Vout=4.8662
㨪5.186V
(SPEC Vout=4.75
㨪5.25V)
IF LoadSlope(max)=11.55mohm x 5A
THEN Vout(min)=4.8084V
THEN Vout(min)=4.8084V
Vref=0.788
㨪0.812V
RH=31.185
㨪31.815Kohm
RL=9.9
㨪10.1Kohm
Vout=Vref*(1+RH/RL)
Vout=3.221
Vout=3.221
㨪3.4215V
(SPEC Vout=3.135
㨪3.465V)
IF LoadSlope(max)=17.325mohm x 3A
THEN Vout(min)=3.169V
THEN Vout(min)=3.169V
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Main 34 1.5V 1.8V Regulator
VA15
VA3
VC18
R1160N151B-TR
IC58
2
GND
5
VOUT
1
VDD
3
CE
4
ECO
R1160N181B-TR
IC57
2
GND
5
VOUT
1
VDD
3
CE
4
ECO
R439
10K
6.3V
C544
10u
2125
B
R440
NU
6.3V
C548
10u
2125
B
C546
0.01u
C545
0.01u
R438
10K
6.3V
C543
10u
2125
B
VB25
R437
NU
6.3V
C547
10u
2125
B
R390
33K
R391
100K
VC3
㨂㧭㧝㧡㧩㧝㧚㧡㨂r㧣㧡㨙㨂
㨂㧯㧝㧤㧩㧝㧚㧤㨂r㧥㧜㨙㨂
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