Aiwa HV-FX970 Service Manual page 7

SCHEMATIC DIAGRAM-6
A MAIN(AUDIO/VIDEO SECTION)C.B
5VT 1D
5V 2D
GND 3D
To
POWER
SECTION
1D 3D
79
REC "H" 3F
29
H.AMP SW 4F
28
5F
C.ROTARY
62
A.MUTE "H" 6F
RF TP
24
V.H/SW 7F
91
IIC DATA 8F
90
9F
IIC CLOCK
27
L307
DV.SYNC 10F
100u
VIDEO(VPS) 11F
C373 C346
12F
VIDEO(Y/C) 0.1 220
6
SEC DET "H" 13F C320
54
1
14F
C.SYNC
30
15F
COMP OUT
R3A1
C3A1
2.2K 0.022
[FOR GX910Z]
[FOR FX970Z]
J3A1
12
16F
V.ENV
R337 C367
To
* 0.022
SYSCON/
J3A2
SERVO
SECTION
[FOR GX910Z]
* R337
3F 16F 15K:GX910Z
18K:FX970Z
* R3B1
2.7K:GX910Z
4.7K:FX970Z
P3D01
SP A PB 1
SP REC 2
R350
SP B PB 3 C350
470
0.1
4
LP A PB
12 V.ENV
5
LP REC
R3A2
LP B PB 6
47K
Q3A1
To KTC3199
CYL.HEADS
30
C408
COMP.OUT
0.015
R3A3
R424
[FOR FX970Z] 1K
Q3A2
KTC3199
79
L402
6800u
REC "H"
R431 C431
C375
4.7K 0.01
R407
0.1
22K
Q401
KTA1267
Q402
KTA1267
CTL(+) 2F
CTL(-) 1F
R408
To
2.2K
R410
SYSCON/
10K
SERVO
SECTION
R409
R411
1F 2F 4.7K
,
22K
79
P3D02
REC "H"
AUDIO PB 6
AUDIO REC 5
A/E (+) 4
A/E (-) 3
CTL (-) 2
CTL (+) 1
To
CTL/AUDIO
HEADS
R420
P3D03
1K
Q405
F/E 2
KTC3203
GND 1
To R421
C419 C418
2.2
FULL
0.01
0.015
ERASE
HEAD
R429 R427 R425
47K 47K 47K
R450 R428 R430
REC "H"
3.9K 3.9K 3.9K
R222
1K
R201
C426 C425 C427
470
2200P 2200P 2200P
C220 C218
C402
C401 0.022 0.1
0.022
47
KTC3199
C355
0.01
C345
0.1 IC301 11
LA71591M
2.4
1.8 2.0
(1.9) (2.9)
2.5 2.4 0 2.4 5.0 (0) 3.4 3.2 2.5 0.6
80 79 78 77 76 75 74 73 72 71 70 69 68
A-VCC C-GND
0
81 Vref
H.A
SECAM DET
ALC
GND 2.3V
PAL M DET
0
82
KIL
0
DET
83
R P
0.7
BPF
84
0.7
85
NAP
KIL
0
H.A
86
GND KIL
5.0 B.D.
H.A
87
GND
1.9(4.8)
88
0
89
320/321FH
VCO
1.9(0)
90
VXO SUB
CONV
1.9(4.8)
XO
91 MAIN
BALANCE
C348 REC
CONV
0.2 FM
1 REC
92 AGC2
FM AGC2
DET
4.2(0)
R333 560
ENV BPF2
93
DET
C302
0(0.3)
0.1
COMP
94
OUT
R3B1
0
*
95 A.GND
R REC FM REC
PB FM
2.3
AGC1 FM EQ
270 AGC
LINE AUDIO
96 MUTE R
AMP SIGNAL
P
R403 C466
0 PROCESSING
5.6K 3.3 P
ALC FM
97
PB FM
DET
R404 PROCESSING
EQ
2.4(1.6)
1.8K
98 PB EQ
4.9
C410 Vref THROUGH
R406
(4.1)
2.7K 0.1
Vref
99
2.3V PB/EE
PB/EE EQ
2.4(3.3)
REC:EP/LP AMP
EQ
100 PB:EP
SP
AMP
1 2 3 4 5 6 7 8 9 10 11 12 13
C412
R412 5.1
0.1 2.4 2.4 2.5 2.4 0.1 2.4 2.4 0 0 1.0 1.7
1.8K (2.7)
Q403 (2.4)
KTC3199
R413 5
C413
8.2K 4 15 14
0.01
R415
R417
330K
1K
C368
Q404 C410
1000P
KTC3199
0.01
C417
1200P
C423
4.7
V.H/SW TP
R418
27K R491 R490
C376
10K
1.8K
0.022
TL401
BIAS COIL
1 6 R422
C421
560
L405 0.022
27u
*
R305 * C301
2 5
1.5K:GX910Z
0.047:GX910Z
1.2K:FX970Z 0.1:FX970Z
R419
47 * R309 * C310
750:GX910Z
10/16:GX910Z
3 4
680:FX970Z 4.7/50:FX970Z
C424
* R338
C420
0.1
270:GX910Z
47/50
220:FX970Z
11
79
L309
100u
[FOR GX910Z]
C334 C374 C371 C331 C333
220 0.1
L306 220
T/W
Q202
C354
220
5.0
C335
Q304 1.9
0.1
KTC3199
1.3
X301
4.43MHz C336 0.01
12
C332 0.01
8 13
12
2.1
0.2
(1.4)
0 3.8 2.7 5.0 5.0 3.5 3.4 3.4 3.3 5.0 3.4 (0.5) 5.1 2.6 0 2.6
67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52
REC
C-VCC CCD CCD
NTSC:H
VXO2 VXO1
APC VCC GND
DET 320FH SLD
C COMB
VXO
C-MAIN
To
P C-DELAY
NTSC-M Cn-CTL
COMB SEC
PILOT AMP DET
BG PHASE
R D.E.
NON CORR CCD
ALT
MES
LC89981/82
CCD
CORRE D.E. Cn-CTL
D.E. DELAY
LPF
REC REC REC
PROCESSING
PB BGA
APC APC AFC
BEFORE
BEFORE
ID DET
R
AFTER PB BGA
AFTER BPF1 Y DELAY
P
R P
REC
BGA
16
P R
P
C-LPF
Y/C SEP
R COMP
IN P
DELAYED
IN
CLAMP
SIGNAL
R
R NL
N.C1
Y.N.R
DEEMP
AGC
N.C2
DET P P
Y.LPF
B-UP
P
ACC
PIC-CTL
AMP
ANR
R
PB-Y
R P
PB-C
Y/C
SYNC
MIX
DET
R 1/2
P
SUB V/I
P
S-VHS:OPEN
LPF CON
R R
FBC
R
DETAIL
FM FM
P
MOD ENH H-PLL
DEM
R P
SYNC
R R
DOUBLE NL
W/D SEP
LIM EMPHA P
CLIP
B.B
CLAMP
P R
CLAMP SERIAL Chara 60dB EE
DECODER INS AMP AGC
(2.5)
PB EQ
CTL TC1
14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
3.0
1.9
1.5 1.9 2.3 5.1 1.1 3.0 2.2 0 4.9 4.9 0 0.1 0.3 0.3 1.7
(0.2) (2.5)
(1.5) (2.5)
R308 (2)
1
2.7K
9 10 3 6
C308
C369
C3B1
0.033 0.022
R315 R314
C309 T/W T/W
330P
C363 C370
39P 180P
R335
1.8(2.3)
R306 18K
330 Q301
KTC3199
4.3(3.8)
1.2
R341
(1.7)
3.3K
R307
330
Q302
L301
KTC3199
10u
R312 C311
C305 C304 5.1 2.2
0.1 220 1.8K 180P
(2.5)
1.3
R313 L303
C312
(1.9)
22P * 33u
R311
R310
4.7K
1K
* R313
330:GX910Z
470:FX970Z
5VT
5V
L201
12u
C210 C209
47/16 0.022
12
R320
T/W
1.9
6 SECAM DET "H"
51
0
50
C330
0.9 R213
0.01
100
49
C329
2.2
0.01 C207 C206 C205
Q303 C208
48
0.047 0.047 0.01
10/16
KTA1267
C328
9.5
0.047
47 2.6
(2.2)
24 23 22 21
1.6
46
1.5 1.6 ACC BELL 1.1M
C313
BPF ADJ PRE-BPF
(2.3)
100P 0
45
REC
0
4.3M 4.3/1.1
ACC1
44 C327 BELL
BPF
1 PB
SW3
2.1
43 X 2 2.2M BPF X 2
C326
(3.1) 2.8 10 SW2
REC
VCA 42 1.1M BPF
DET
PB
7
3.0 REC
SW4
41
R319 LIMITER
C325
PB
5.1 1K
1
40
ALWAYS
C324 L304 LP QUAD DET EP
4.1
5V
100U
0.1
REG 39
DAC
ADJ
C322
2.2
47 SYSTEM
38 TRICK
AFC SW 1/4
1.6
ID-DET
C319 C/D
(4.7)
2
SYNC 0.1
37 PHASE MAIN IDENT
C351 XVCO
DET
1.8 ADJ ID-DET
0.1
(3.3)
36 1 2 3 4
1.3 C318
(3.4) 2.2
AFC
35
DET
1.8
C317
(3.3) X201
0.01
34 R208
C215 4.286MHz
C216
AGC 1.9(1.3) 0.1
1
TC2
R318
R207
33 C214
4.7K
15P
C316
(2.3) 1.5
10
32
2
2.9
91 IIC DATA
31
90 IIC CLOCK
C315
54 C.SYNC
10
30
2
1.1
27 DV.SYNC
(4.4)
R317
C314
0.1 *
C323
R325
47
1K
2.4
1.7(0.6)
Q305
KTA1267
D301 0
1SS131
:PB Y SIGNAL
* R317
:PB CHROMA SIGNAL
100K:GX910Z
120K:FX970Z
:PB VIDEO SIGNAL
:REC Y SIGNAL
:REC CHROMA SIGNAL
:REC VIDEO SIGNAL
5V
5VT
:PB AUDIO SIGNAL
:REC AUDIO SIGNAL
O N E V O L T A G E : P B O R R E C M O D E
*
T W O V O L T A G E S : P B A N D ( R E C ) M O D E
: WAVEFORMS No.
12
1G AUDIO 3
2G
AUDIO 2
3G AUDIO 1
R212
100
C201
2.2
R211
1.5K
IC201
C204 C211
C203 TA1238N
0.047 0.022
0.47
20 19 18 17 16 15 14 13
ACC Anti Bell SYSTEM
DET ADJ SW
PAL/NTSC SW7
SECAM
L/M 1/4
PB
SYNC
ATT
COMORESS
SW6
SYNC
GATE
REC
PB
1.1/4.3 SW5
ACC2
Anti Ball
V C/D V C/D
REC SW8
V SEP VCO
SLICER AFC
IIC BUS
TRICK
5 6 7 8 9 10 11 12
R210 R205
R209 R206
1K 1K
100 100
C212
Q201
R204 0.033
KTA1267
1K
C213
2.2/50
6G VIDEO 1
5G VIDEO 2
MONO AUDIO
4G
C430
To
SCART
SECTION
1G 6G