5
POSITION
MUTING
44
MUTE DVD
Q2028
SWITCHING
Q2004
+B
Q1
INTERRUPTOR
PHOTO
ZFLAG
GND
VCC
GND
VCC
(FM)
ST
SD
DET OUT
(LC7213MDTRM)
(LA1833NMNTLM)
/FM MPX
DET/AM OSC MIX
FM/AM IF AMP,
TUNER PACK
SD
ST/DO
CE
DI
CL
CL
DI
CE
DO
I/F
C2B
SHIFT REGISTER LATCH
DETECTOR
UNLOCK
15
11
17
18
16
1
20
14
13
4
3
2
5
8
9
6
12
7
10
19
SYNTHESIZER
PLL FREQUENCY
AM IFT
12
11
10
9
8
7
6
5
4
3
2
1
DET
PILOT
FF
FF
FF
VCO
CANCEL
PILOT
DET
PHASE
RF AMP
5
1
7
8
COIL
OSC
AM
COIL
ANT
AM
IF AMP
FM
AM ANT
FM ANT
C
Y
CR/PR/R
CB/PB/B
Y/PY/G
7
1
2
C IN
4
Y IN
CR IN
9
8
CB IN
CY IN
6
GND2
CY OUT
CB OUT
CR OUT
Y OUT
V OUT
C OUT
10
16
C
Y
SYSTEM CONTROL
IC2018
C2CBJG000578
8
6
2
4
7
9
8
6
9
7
4
2
2
OP/CL REV
26
BOTTOM
21
CHANGE SW
4
OPEN SW
1
ST SW
100
PLAY
3
OP/CL FWD
20
UP/DOWN R
7
UP/DOWN F
38
WIDE 1
MOTOR
LOADING
MOTOR
UP/DOWN
C0GAG0000007
MOTOR DRIVE(LOADING)
IC21
C0GAG0000007
MOTOR DRIVE(UP/DOWN)
IC11
+B
+B
CONTROL
DRIVE
CONTROL
DRIVE
TUN CLK
TUN SD
TUN DI
TUN DO
DVD STAT
DVD CMD
DVD CLK
29
27
30
28
36
35
37
CL
CE
NC
SD
DI
ST/DO
DVD STAT
DVD CMD
DVD CLK
S-VIDEO OUT
JK2001
IC2006
VIDEO BUFFER
C9ZB00000466
GND1
VCC
+B
VIDEO OUT
JK2001
15
14
CR(BLUE)
JK2001
11
CB(GREEN)
JK2001
12
13
Y(RED)
JK2001
+
2dB
-6dB
75
2dB
BIAS
4dB
75
LPF
6.5MHz
2dB
CLAMP
4dB
75
LPF
6.5MHz
2dB
BIAS
4dB
75
LPF
6.5MHz
2dB
BIAS
4dB
75
LPF
6.5MHz
4dB
75
2dB
LPF
13.5MHz
CLAMP
Rch
TUN L
(FM:ON)
SUPPLY
POWER
+B
+B
+B
X103
RESET
POWER ON
COUNTER
UNIVERSAL
1/2
1/6,1/17,4 BITS
SWALLOW COUNTER
DIVIDER
PROGRAMMABLE
12 BITS
CHARGE PUMP
PHASE DETECTOR
DIVIDER
REFERENCE
REG
REG
13
14
15
16
17
18
19
20
21
22
23
24
+B
+B
SWITCH
STEREO
DECODER
FM IF
DET
LEVEL
S-CURVE
DET
FM
BUFFER
IF
AM/FM
DRIVE
TUNING
COMP
AM IF
AM DET
AGC
RM AMP
AM
MIX
AM
BUFFER
ALC
OSC
AM
+B
6
(FM)
+B
MIXER
OSC
BUFFER
SA-HT680PL BLOCK DIAGRAM
S2
(PLAY)
S1
(STOCK)
S4
(OPEN)
S5
(CHANGE)
S3
(BOTTOM)
SA-HT680PL
69
Summary of Contents for SA-HT680PL
Page 18: ...10 2 Main Components and P C B Locations 18 SA HT680PL ...
Page 23: ...23 SA HT680PL ...
Page 24: ...24 SA HT680PL ...
Page 25: ...11 3 Assembling for traverse motor and spindle motor 25 SA HT680PL ...
Page 26: ...26 SA HT680PL ...
Page 28: ...28 SA HT680PL ...
Page 31: ...31 SA HT680PL ...
Page 32: ...32 SA HT680PL ...
Page 34: ...34 SA HT680PL ...
Page 35: ...35 SA HT680PL ...
Page 36: ...36 SA HT680PL ...
Page 37: ...37 SA HT680PL ...
Page 38: ...38 SA HT680PL ...
Page 39: ...39 SA HT680PL ...
Page 40: ...40 SA HT680PL ...
Page 41: ...41 SA HT680PL ...
Page 42: ...42 SA HT680PL ...
Page 43: ...43 SA HT680PL ...
Page 44: ...44 SA HT680PL ...
Page 46: ...46 SA HT680PL ...
Page 52: ...52 SA HT680PL ...
Page 58: ...58 SA HT680PL ...
Page 66: ...SA HT680PL 66 ...
Page 72: ...SA HT680PL 72 ...
Page 88: ...SA HT680PL 88 ...
Page 90: ...SA HT680PL 90 ...
Page 94: ...27 1 Loading Mechanism Traverse Unit Cabinet 94 SA HT680PL ...
Page 95: ...27 1 1 Loading Mechanism Traverse Unit Cabinet Parts Location 95 SA HT680PL ...
Page 96: ...96 SA HT680PL ...
Page 97: ...97 SA HT680PL ...
Page 98: ...98 SA HT680PL ...
Page 99: ...99 SA HT680PL ...
Page 100: ...100 SA HT680PL ...
Page 112: ...27 4 Packaging 112 SA HT680PL ...
Page 113: ...28 Schematic Diagram for printing with letter size 113 SA HT680PL ...
Page 133: ...133 SA HT680PL ...