Y/C/Audio/Head Amp Schematic Diagram (Hv-Gx900K - Aiwa HV-GX950 K Service Manual

A B
8
FROM/TO SYSCON/SERVO/TIMER
VV-H
V.H_SW
PICTURE_CTL
NA_REC-H
DUMMY_V.SYNC
SYNC
A_MUTE/TRICK-H
7
IIC_DATA
IIC_CLK
ENV.DET
CTL+
CTL-
HIFI_H.SW/VV-H
FROM/TO 21PIN/OSD/VPS
6
2FSC
SWD_VIDEO_IN
EE/VV_V_OUT
FROM/TO TUNER/HIFI
TU_V_OUT
TU_A_OUT
NORMAL_A_IN
NORMAL_A_OUT
5
FROM POWER
AT+5.8V
P.CON+5V
GND
4
FROM/TO CYL
CP4001_1 TOC-C04X-B1
SP-R
4 SP-CH1 (R)
3
SP_COM
3 SP COM
SP-L
2 SP-CH2 (L)
1 NC
FROM/TO A/C HEAD
2 CP4002
52045-0645
1 AE HEAD(+)
2
AE HEAD(-)
CTL-
3
CTL-
CTL+
4 6
CTL+
5 AUDIO REC
6 AUDIO PB
TO F/E HEAD
CP4003
TMC-T02X-E1
1
1 FE HEAD(GND)
2 FE HEAD(HOT)
A B
C D
Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM
H.SW
V.ENV R4033
TP4001 TP4002 1K
NC NC
Y/C/AUDIO/CCD/H.AMP
C4011
IC4001
HA118217F
0.001 B
5
2.5
V.H_SW
C4016 2.5
0.033 B C4025 2.1
1.4
50V 3.3 KA
ENV.DET
C4014 0.1 B
0.1
C4017 0.01 B 2.3
SP-L
C4018 2.3
C4029
SP_COM
0.01 B
0.01 B 2.3
L4004
C4019
C4030
2.3
10uH
SP-R 6.3V 47 KA
0405
0.01 B 5.1
P.CON+5V C4020
0.1 B
C4096 0
0
0.01 B 0
0
C4026 3.4
C4097
L4006 0.01 B 5.0
50V 1 KA
P.CON+5V
1mH 0
NC
5.0
R4007 1.9
A_MUTE/TRICK-H
1K 2.5
R4011
8.2K
C4033 R4012
6.3V 22 KA
C4035
1 6
5.4 5.7
220P B
PB SW
2 5
OSC
5.7 Q4005
Q4004 3 4
DTA124EKA
2SD734 L4005
1626008
5.2
R4005
5.5 0.6
10K
R4038
0
C4008
NORMAL AUDIO
2.2K
0.0047 B
REC ST SW 0
Q4003
2SD734
C D
E
(MODEL:HV-GX900K)
(SYSCON PCB)
3
4
NC
NC
2.1 2.8 4.7 2.1 2.1 1.7 1.7 1.9 2.1 2.5 2.8 1.4 5.0 5.0 5.0 2.2 4.2 3.2 3.0 5.0
0
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60
C GND DO CVCC
KIL
VCA
X TAL VCO/OSD CR DET 2FSC SERIAL CONT
INTERFACE
LIMITTER HEAD SW1 LEVEL DET1
2FSCVCO FH SYNC
HEAD SW2 TANC P
KILLER
SW26
DET OUT R
LEVEL DET2
COLOR
ME SW25
KILLER
PB/REC REC REC PB
COMP R
DET SECAM ID DET DL
ENV DISCRI AFC APC APC
HPF
DET
DET
HA GND DET
1/2 DOWN 1/2 ACC APC DELAY CLPH
+ SP2 CONV. DET SW
2FL VCO SW24
PHASE SW
P
SW32 SP2
R
-
4PHASE GEN
SW33 MAIN
SW30
SP1 CONV1
SW29 SW28
- CH2
P SW20
SW23
SP CTL TRAP
SW34 2M LPF
P
ACC
+ HPF
R FHTRAP
CH1
SW35 SP1 SEP R
EP
HPF
HA VCC VCA
L SECAM COMP SW19
SW27
EP2
MIX
+
SW31 C.K B.E
LEVEL SW18
SW36 EP2 P
CH2 L SECAM
LPF ADJ TRAP
-
REC
MUTE + R
SW37
P SW7 SQPB
EP1 CH1
629 FM P S
-
FROM TRAP AGC EQ DL G
SW38 EP1
DO EDGE
R EQ
MESECAM
+
DET SQPB DET DELAY
DET
SW39
DLIM
1M HPF
NL NL
+
EMPH DE EMPH
DEMO
DET
SW4 SW5
7M HPF
AVCC
SW2
P FBC/ALC
SUB LPF
LAG LERD
PRE R
SW14
LPF SW10
AMP VCA
MAIN REC
MAIN
DE EMPH DO
EMPH P
FM MOD R P R
CARRIER
OFFSET Y LPF SW12
MUTE FO/DEV W.C/DC
SW9
R P
ADJ
SW6
REC EQ BAND S-DET
CLAMP
SW11
GAP
A.GND 3 1 YVCC
2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
0
2.5 2.5 0 2.5 2.8 2.5 2.6 2.5 2.5 2.5 5.0 1.5 1.5 2.6 0.7 0.6 2.2 3.2 2.7 2.4 2.1 3.1 2.1 1.5 2.1
180
C4048_1
0.1 B
R4022
12K
C4098
470P CH
C4028
0.056 B
R4017
PB SW 7
5.6K
Q4006
+-1% 0
2SC2274K
R4015
0.7
5.2
4.7K
0
PB SW
Q4007
2SC2274K 0
R4016
SWD_A_IN-L
0.7
4.7K W887
0
0
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
R4052
5.0
VV MUTE SW HIFI_H.SW/VV-H
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
Q4009
22K
2SC2412K 0
V V: THE PICTURE ON SCREEN APPEARS DURING PLAYBACK.
E
I-7
F G
1
2
2.1 0.1 3.3 2.8 2.1 2.0 2.8 2.7 0
59 58 57 56 55 54 53 52 51
R4045
0.4
NTSC/PAL
N-P CONT
OUT 6dB AMP 6dB AMP 100
0
CCD
- LPF C SQUELCH SYNC.SEP.
0
0
+
PULSE
2.0
GEN CLEAR SYNC
C.K
LMIT
0
CLPH WHAITH
CCD
SQUELCH
N P
GND
C4086
MAIN 2.6
CONV2 FEED BACK
+ B.D
CLAMP 0.01 B
5.2
SW22
P VIDEO ALC
R
R
3.8
P SW21
BPF
5.2
CLOCK
DEIVER
5.2
3.5
C Y
CCD CCD
5.2
SW17
P
Y APA
0.1
SW16 MODE
R
CONT
L4015
R D.E. CCD
5.2
REC P.CON+5V
N.C. VCC=5V
AGC DEL
100uH
P 3.3 3.2
PB ALC
2.5
STILL SW
SW115 0
VIDEO AGC SECAM_L/SP.STILL
Q4011
YNR CH3 CH1 2SA1037AK
DO 0
CH2 3.2
ATT ATT ATT
0
(-10dB) (-10dB) (-10dB)
SW15
CLAMP
C4089
2.8
SWD_VIDEO_IN
LPF
P R
YGND AGC
1 B
22 23 24 25 26 27 28 29 30
0 2.7 1.7 2.8
0
5.0
V.AGC SW
0
Q4008
DTC144EKA
NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
F G
H
8
7
6
SYNC
5
4
CAUTION: DIGITAL TRANSISTOR
CAUTION: DIGITAL TRANSISTOR
3
VV-H
RECORD LUMINANCE SIGNAL
RECORD COLOR SIGNAL
PLAYBACK LUMINANCE SIGNAL
2
PLAYBACK COLOR SIGNAL
AUDIO SIGNAL(PB)
AUDIO SIGNAL(REC)
TUNER VIDEO SIGNAL
1
PCB010
VM9150
H