BLOCK DIAGRAMS
5.4VA
TO SYS, TU/IF
HOT CIRCUIT
BD101
R101
R106 R102
C103
C113
C112
HOT GND
F101
WH
(BL)
BK
(BR)
PW101
6
7
8
9
10
3
2
4
3
11
12
1
2
IC102
IC103
4
T101
TRANSFORMER
4
2
3
1
RECTIFIER
& SMOOTHING
DRIVE & S/W BLOCK
OVER CURRENT LIMIT
BLOCK
+
TO Canal+
TO TU/IF
12VA
TO CAPSTAN M
24/12VA
33V
TO AV, TU/IF,
5.2VT
TO DRUM
12VA
5.2V
TO Hi-Fi, Sensor
SECAM
TIMER "H"
D155
SNUBBER
BLOCK
(IC101, R109, C135, D103,
R103,C109, R125, R126)
(D102,R104,
C105,C106)
(D109, C120,
L104,C121)
NOTES : Symbol denotes AC ground.
Symbol denotes DC chassis ground.
!
!
!
!
!
!
!
!
FROM µ-COM
FROM µ-COM
P.CTL"H"
LINE FILTER
BLOCK
(C101,L102,
C102)
RECTIFIER
& SMOOTHING
(D105, C115)
36V S/W
BLOCK
(Q154, R157,
R158,R155)
5VT SW
BLOCK
(Q152, R153,
R154, D156)
5V S/W
BLOCK
PWR CTL
BLOCK
Q163
(Q151, R151,
R152)
(Q162, R161)
FEED-BACK
BLOCK
(R116,R117,R118
R119,R120,R121
C114)
'00 11. 30
F. µ-com
SEARCH "H"
Q161
R163
Q155
24V S/W
Q159,R166,R167
RECTIFIER
& SMOOTHING
(D106, C116,
L103,C117)
RECTIFIER
& SMOOTHING
(D110, C123)
1. Power Block Diagram
3-21 3-22
4. Y/C Block Diagram
90
93
96
84V.ENV
87
70
V.H.SW
C.ROTARY
DATA
CLOCK
C.SYNC
V.OUT
(MICOM)
S2 V.OUT
S1 V.OUT
SYNC IN
69 68 67
C-Delay
(1H/2H)
BPF
MAIN
CONV
ACCC LPF
CCD
LPF
ACC
DET
CNC
2521
IC201
LA70100M
IC301
LA71750M
29
18 14
PB FM EQ FM OEM
PB FM
AGC
MAIN
DE EMP
Y-LPF
YNR
SUB LPF
60dB AMP
Y/C MIX
65 63 61
46
43
Y-Delay
79 78
80
REC'H'
V.H.SW
C.ROTARY
DATA
CLOCK
C SYNC
V.OUT
MICOM
V.IN4
FRONT
V.IN3
DEC
79 78 76 75 70 69 68 67 65 59 58 54 52
50 V.IN2 S1
V.IN1 TUNER
48
46
43
33
32
31
CLK-IN
2928
4.43MHz
2721
95
94
89
88
Killer C-LPF ACC
BPF
Main
Conv
Main
Conv
DETAIL
ENH
NL
EMPHA
W/D
CLIP
IC301
LA71750M
UP REC
SP REC
(To Drum)
(To Drum)
W/D
CLIP
REC
FM EQ
Y-LPF FBC
AGC
SW
Y-DELAY
KILL DEC
REC APC
VX02 VX02
COMP
AMP
1H/2H
DELAY
YNR
29 16
2 12
IC201 LA70100M
12345
678
9
10
13 16 17 19 20 21
353637
22
3233313029282726252423
Audio input
Block
• Tuner
• F.A/V
• Scart1
• Scart2
Modulator
A.out
(To Tuner)
Scart 1
Audio Out
Scart 2
Audio Out
Normal A.out
(To AVCP)
Normal A.IN
(From AVCP)
Hi-Fi
PNR
Block
Hi-Fi
REC
Block
A
B
IC801
(PB MODE)
5. Hi-Fi Block Diagram(Hi-Fi Model Only)
(REC MODE)
3-25 3-26
6. System Block Diagram
RC501, R5R7
R5R7, R5R8
C5R, C5R2
RC501
2fsc
R524, R514, R518,
R516, R589, C577,
C576, L501, Q504
LD(+)
LD(-)
L/M CONTROL
R525, R526
IC501
HD6432197A
3-27 3-28
CIRCUIT DIAGRAMS
NOTES) Symbol denotes AC ground.
NOTES) Symbol denotes DC chassis ground.
NOTE) Warning
NOTE) Parts that are shaded are critical
NOTE) With respect to risk of fire or
NOTE) electricial shock.
'03. 1. 7 R15000A
1. Power Circuit Diagram
BD101, R101 are defective.
D109, C120 are defective.
No 14VA, 12VAare 12VT.
Power dead.
No power.
D102 is defective.
Power dead.
F101 is defective.
No 5.3VAand 5VG, 5VT.
D106 is defective.
No 5.2VT.
Q152 is defective.
Switching dead.
IC101 is defective.
Power dead.
IC102, IC103 are defective.
NOTE :
1. Shaded( ) parts are critical for safety. Replace only
with specified part number.
2. Voltages are DC-measured with a digital voltmeter
during TUNER mode.
3-29 3-30