Hitachi VTMX900ECT Wartungshandbuch Seite 101

Deck Control (DE)
1 2
1948
I484
52
6
F4805
5
51
4 F4803
7V
A
3 F4802
7V
F4801
2 7V
1
7V
5VS1
GNDM1 GNDM1 GNDM1
7463
5VS1
M63100FP
B
I462
2472
53 22n
GNDDE GNDDE
2.9V
PG_FG
2475
5VS
F470
C 100p
I483
2477
33n
GNDS GNDS
I482
3459
IPOR
220R
delete for <1Watt
D
GNDDE
5V_1WSTBY
5V_1WSTBY
54
E
5VD 5VD
4 2
1 3
1.1V 3
2
GNDDE GNDDE
F
1 4
GNDDE GNDDE GNDDE
G 5V_1WSTBY 5V_1WSTBY
I489
3548
390K
for <1W or fome
H
7530-B
7
LM339D
1
2.4V
10K
6
for <1W or fome
3550
for <1W or fome
1 2
3 4 5
GNDDE GNDDE GNDDE GNDDE
F461
3465
GNDDE
0R47
3490
220K
GNDDE
2.2V 2.4V 14.4V 7V 7V 7V 0.4V
14 13 7 20 19 18 16 9 17
OSC
5.2V
12 VCC1
BACK
-EMF CTL
8 PGIN PULS
DET
GEN
TSD
FGPGOUT FG/PG
6
OUT
FG CIRCUIT
5.2V VCC2
42
POWER ON/
POWER OFF
2.4V
29 POFCAP
DETECTOR
4.7V
28 IPOR
36 34 39 33 38 31 37 30 35
5.2 5.1 2.6 2.6
GNDDE
3476 3477 3478 3479
470K 270K 270K 2M2
I476
3475
18K
delete for <1W
55
3484
I477
10K
9423
for <1W
3 4 5
3-19 3-19
6 7 8
14VM1
5V_STBY 5V_1WSTBY
F466
5460 F467
0u33
C461
5VS1 5VS 5V_1WSTBY
GNDM1 GNDM1 GNDM1
50
GNDM1
GNDM1
GNDDE
1V 4.7V 14.4V
15 11 10 27 21 23
GNDDE
13.8V
V/V A 22
CONV
I467
BIN 25 3V
13.8V
B 24
AMPLIFIER
FILTER
DETECTOR 2490
STBY 26
100u
WRITE
AMPL
2478
I468
CTLFB 2
2.6V
I470
3470
CTLI|O 3
220R
60
4 32 5 40 41 1
2.6 4.8
GNDDE GNDS
58
GNDS GNDS GNDS
I471
2485 3485
100n 4K7
2486
4n7
GNDDE
5VD 5VD
57
59
3486
1.1V
3 2
10K I480 1.1V
4 1 7465
TCRT5000L
GNDDE GNDDE GNDDE
0007
for <100sec only
1
REELTABLETACHOHOLDER
1969
1
2
0008
C460 C462
3
GNDDE GND GNDS
HOLDER FOR TCST1030+TCRT5000L
6 7 8
0007 H8 F470 C2
9 10
0008 H8 F4701 B10
0011 G9 F4703 C10
1946 E10 F471 E6
5VD 1947 B10 F4801 A1
9_14VM2
1948 A1 F4802 A1
1969 G8 F4803 A1
2459 D1 F4805 A1
2460 A4 I461 B1
2461 A7 I462 B2
2462 A6 I463 A4
A
2463 A7 I464 B4
2464 A5 I465 A4
5VD 9_14VM2 2465 A2 I466 B5
2466 A2 I467 B9
DRUM
2467 A3 I468 C8
2468 A4 I470 D8
I471 E8
2469 B8
TMO 2470 B1 I472 E6
2471 B2 I473 E5
2472 B2 I474 E4
2473 C8 I475 E4
THIO
2474 C9 I476 E3
2475 C2 I477 F3
44
2476 C1 I478 E1
B
2477 C2 I479 F2
GNDDE 2478 C9 I480 G7
2479 D8 I481 G8
1947
F4701 2480 D9 I482 D3
1
2481 E6 I483 C3
2 2482 E7 I484 A2
2483 G7 I485 F2
F4703
3
2484 F3 I486 H1
2485 E8 I487 C9
2486 F8 I488 E4
2487 F9 I489 H2
2488 C2
C
2489 E6
STBY
2490 C9
2491 B9
4664
2492 A3
2493 A3
3459 D2
3460 A4
CTL1
3461 A2
3462 A2
3463 A3
3464 A7
CTL2
D 3465 A6
5VS1
3466 A1
3467 B8
3468 C8
3469 D9
3470 D8
SYNC
3471 D9
3472 E1
3473 E1
W_R
3474 D8
3475 E3
3476 D4
1946
F4601
1 E
3477 D4
3478 D5
F4602
2
3479 D6
F4603 3480 F8
3
3481 F7
F4604
FG 2.5V 4
3482 E3
3483 E7
F4605
5.2V 5
3484 F3
F4606
3485 E9
2.6V 6
3486 G7
F4607
14.4V
7 3488 B9
3489 E2
F
8
3490 A3
3547 G3
3548 H3
3549 G2
GNDM1 GNDDE
3550 H1
3551 F2
4460 G4
4664 C9
5460 A7
7463 B3
7464 F2
7465 G8
G
7466 F1
7530-B H3
9401 A8
9423 H3
C460 H7
C461 A8
C462 H7
F4601 E10
F4602 E10
F4603 E10
F4604 E10
H
F4605 F10
.. OSCILLOGRAMS
F4606 F10
F4607 F10
..V MEASURED IN PLAYBACK MODE
F461 A5
..V MEASURED IN RECORD MODE F462 A6
F463 A6
F464 A6
F465 A6
F466 A7
F467 A8
F468 A7
F469 B7
9 10
Interconnections:
AF page 3-27
AL page 3-24
AIO1 page 3-17
AIO2 page 3-15
DE page 3-19
FM ST page 3-22
FM NIC-page 3-23
FV page 3-21
FOME page 3-34
I/O page 3-33
PS page 3-14
VPO page 3-32
VS page 3-31
VS_S page 3-28