Fluke PM6690 Service Manual page 165

5
D
X50 X50
R449 R449
10K 10K
R584 R584
2 OFFCTRL
U29A U29A
47 47
X22 X22
OF F
2 5
D Q R466 R466
3
X23 X23
CLK
ON 6
Q
X24 X24
R472 R472 1K 1K
LVC74A LVC74A
2 ONCTRL
47 47
R478 R478
C389 C389
1M 1M +5VU
X51 X51 100NF 100NF
C197 C197 U29C U29C
100NF 100NF LVC74A LVC74A
C
+5VA
1,4,5,6 +5VA +5VA
X21 X21 X38 X38
-15VU
C488 C488
C489 C489
22UF-35V 22UF-35V
100NF 100NF
- 15V
J17 J17
6
F ROM AC/ DC X9 X9 X39 X39
5
POW E R
4
S UPPL Y + 5V
3
2
+5VU
1
C491 C491
C490 C490
640445-6 640445-6 100NF 100NF
22UF-35V 22UF-35V
+ 15V
X26 X26 X40 X40
B
+15VU
C493 C493
C492 C492
100NF 100NF
22UF-35V 22UF-35V
C411 C411
100NF 100NF
2 FANCTRL
A
+15VU
U29B U29B
12 9
D Q U30B U30B
11 6 - -
CLK U30C U30C
8 7
LM358 LM358
Q
5
+ +
LM358 LM358
LVC74A LVC74A
5
4
+5VU
+5VU
R593 R593
1K 1K
R453 R453
1K 1K
R592 R592
-15VU
1K 1K
Q47 Q47 Q58 Q58
BC847B BC847B BC847B BC847B
R479 R479
220 220
R480 R480
470 470
-15VU
+5VU
R570 R570 R571 R571
100 100 100 100
R579 R579 R575 R575 R576 R576
1.5K 1.5K 100 100 100 100
R580 R580
Q56 Q56
BC807-25 BC807-25
R581 R581
3.3K 3.3K
Q57 Q57
BCP54 BCP54
47 47
R582 R582
10K 10K
X62 X62 X63 X63
R616 R616
820 820
-5.2VI
R617 R617
C412 C412
6.8K 6.8K
10n 10n
U35A U35A
R619 R619
2 - -
1 Q51 Q51
BCP51 BCP51
3 + +
1K 1K
LM358 LM358
R618 R618 R620 R620 R621 R621 R622 R622 R625 R625 R626 R626 R627 R627
10K 10K 120 120 120 120 120 120 120 120 120 120 120 120
-12VA
U35B U35B
U35C U35C C26 C26
6 - -
LM358 LM358 10n 10n
7
5
+ +
LM358 LM358
-12VA
4
3 2
+5VU
C393 C393
100uF-6.3V 100uF-6.3V
R594 R594 R598 R598 R602 R602 R454 R454 R455 R455 R456 R456 R457 R457 R458 R458
10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
R595 R595 R599 R599 R603 R603 R461 R461 R462 R462 R463 R463 R464 R464 R465 R465
10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
R596 R596 R600 R600 R604 R604 R467 R467 R468 R468 R469 R469 R470 R470 R471 R471
10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
R597 R597 R601 R601 R605 R605 R473 R473 R474 R474 R475 R475 R476 R476 R477 R477
10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
R450 R450
R451 R451
1K 1K 330 330
-12VA
U123 U123
C385 C385 R459 R459 C386 C386
2 4
ON/OFF GND
2.2K 2.2K 22UF-35V 22UF-35V
22UF-35V 22UF-35V 1
ADJ
3
REG REG
IN
6 5
IN/TAB OUT
LM2991S LM2991S
+5VU
C395 C395
100NF 100NF
R572 R572 R573 R573
R574 R574
+5VU
100 100 100 100 NOT USED NOT USED
R577 R577 R578 R578
100 100 100 100
C397 C397 C405 C405
100UF-6.3V 100UF-6.3V
10N 10N
R488 R488
R489 R489 15K 15K
330K 330K C401 C401
C400 C400
100P 100P
1N 1N
+15VU
Q49 Q49
BCP51 BCP51
R497 R497
R498 R498
1K 1K
10 10
R499 R499
10 10
R500 R500
R501 R501
1K 1K
10 10
R503 R503 R502 R502
Q50 Q50
10 10
BC847B BC847B
R504 R504
2.2K 2.2K
10 10
+15VU
R491 R491
2.2K 2.2K
R492 R492
U30A U30A
2 - -
R493 R493
Q48 Q48
1
10K 10K BCP51 BCP51
3 + +
2.2K 2.2K
C402 C402 LM358 LM358
R494 R494
C403 C403
100NF 100NF
4.7UF-35V 4.7UF-35V 1M 1M
R495 R495
33K 33K
R496 R496
C404 C404
10K 10K 220UF-35V 220UF-35V
3 2
Supply Voltages,
1
X12 X12 X41 X41
U126 U126
8 1
+3.3VA
IN OUT
2
SENSE
3 6
SHDN VTAP
R482 R482 R483 R483
7
FB C396 C396
REG REG 3.3K 3.3K 3.3K 3.3K
C394 C394
10N 10N
5 100uF-6.3V 100uF-6.3V
ERROR
4
GND
LP2951CM LP2951CM
R486 R486
1K 1K
-5.2VI
-5.2VI
R452 R452
1K 1K
C387 C387
U124 U124
22UF-35V 22UF-35V
2 4 R460 R460 C388 C388 X8 X8 X42 X42
ON/OFF GND
3.3K 3.3K 22UF-35V 22UF-35V
1
ADJ
3
IN REG REG
6 5
-5.2VA
IN/TAB OUT
LM2991S LM2991S
X10 X10 X43 X43
-12VA
-12VA
R446 R446
+5VU STBYLED
470 470
R447 R447
Q46 Q46
BC847B BC847B
2.2K 2.2K
R448 R448
680 680
X11 X11 X44 X44
U127 U127
7 8
IN OUT
5 6
IN OUT +5VD
1 2
CTL FLG
4 3
GATE GND +5VD
MIC2505 MIC2505
POWERON
POWERON
+5VA
+5VA
+5VA
+5VU
X14 X14 X45 X45
L28 L28
U128 U128
9 10
PVIN SW +3.3VD
16 11
PVIN2 SW 2 4.3UH 4.3UH
1 14
SVIN SW 3 +3.3VD
15 R487 R487
REG REG SW 4
470K 470K C398 C398 C399 C399
6
S/M
100uF-6.3V 100uF-6.3V 220UF-10V 220UF-10V
7 4
SHDN/SS FB
5 2
RT PGOOD
3
ITH
12
PGND
R490 R490
8 13
SGND PGND2
150K 150K
LTC3412 LTC3412
+15VU +15VU
X15 X15 X46 X46
+15VD
X16 X16 X47 X47
U129 U129
1 3
IN OUT +12VA
REG REG
+12VA
C406 C406 2 4 C407 C407
GND GND
4.7UF-35V 4.7UF-35V 220UF-10V 220UF-10V
LM2940CS-12 LM2940CS-12
+15VU +15VU
X17 X17 X48 X48
U130 U130
1 3
+12VU
IN OUT
REG REG
C408 C408 2 4 C409 C409
GND GND
4.7UF-35V 4.7UF-35V 220UF-10V 220UF-10V
LM2940CS-12 LM2940CS-12
X49 X49
J28 J28
1 F AN
CONNECT OR
2
176125-2 176125-2
J19 J19
F095 F095
1
PCB 1, sheet 6(7)
6,8
5
D
5,6
1,4,6,8
1,4,6,8
2
C
1,2,5,6,8
1,2,5,6,8
2
1,4,5,6
2
1,2,5,6,8
1,2,5,6,8
B
1
5,8
1,4,5,6
1,4,5,6
1
6
A
Schematic Diagrams 9-19