Read Panasonic SA-VKX80GA / SA-VKX80GC / SA-VKX80GS Service Manual online
105
16.5. Power Amplifier & Video
SA-VKX80GA/GC/GS POWER AMPLIFIER & VIDEO (1/2) BLOCK DIAGRAM
TO POWER AMPLIFIER
& VIDEO
SECTION (2/2)
& VIDEO
SECTION (2/2)
P1
HEX INVERTER
C0JBAB000902
IC5500
5
13
CN5050
CN2401
MUTE F
FRONT L HIGH
FRONT L LOW
FRONT R LOW
FRONT R HIGH
SUBWOOFER
1
17
CN5050
CN2401
MOD DA
2
16
CN5050
CN2401
DC DET
Q5101,Q5102
DC DETECT
Q5601,Q5603,Q5604
MUTING
CIRCUIT
X5500,X5501
D5501,D5502
D5501,D5502
POWER AMPLIFIER
C1BA00000497
IC5400
OUT1
10
BOOT1
VDDP1
VSSP1
VSSP2
VDDP2
9
8
13
11
16
VDDA1
VDDA2
VSSA1
VSSA2
4
6
20
18
VSSD
17
2
IN1+
1
OSC
INPUT
STAGE
PWM
MODULATOR
RELEASE1
ENABLE1
ENABLE2
SWITCH1
MUTE
DRIVER
HIGH
DRIVER
LOW
CONTROL
&
HANDSHAKE
OUT2
14
BOOT2
15
PROT
7
21
IN2-
INPUT
STAGE
23
MODE
MODE
12
STABI
STABI
PWM
MODULATOR
OSCILLATOR
MANAGER
TEMP. SENSOR
CURRENT PROTECTION
VOLT. PROTECTION
RELEASE2
SWITCH2
MUTE
DRIVER
HIGH
DRIVER
LOW
CONTROL
&
HANDSHAKE
-30V
30V
-30V
-30V
30V
-30V
-30V
30V
+
-
2
JK5001
1
JK5001
+
-
FRONT (LEFT)
HIGH
FRONT (LEFT)
LOW
4
JK5001
3
JK5001
4
14
CN5050
CN2401
FHOP
OSC
MODE
FROM/TO
SYSTEM CONTROL
SYSTEM CONTROL
FROM AUDIO
MAIN P.C.B.
MUTE F
FL (TW)
FL (WOOFER)
FR (WOOFER)
FR (TW)
SUBWOOFER
FL (TW)
FL (WOOFER)
FR (WOOFER)
FR (TW)
SUBWOOFER
MODE DA
FHOP
DC DET AMP
13
5
CN5050
CN2401
9
9
CN5050
CN2401
15
3
CN5050
CN2401
11
7
CN5050
CN2401
17
1
CN5050
CN2401
3
15
CN5050
CN2401
FAN
DC DET
OSC
OSC2
OSC2
MODE
FAN
FAN
DC DET AMP
FHOP
MOD DA
MUTE F
CLOCK
GENERATOR
CIRCUIT
D-AMP P.C.B.
SPEAKERS
: AUDIO OUTPUT SIGNAL LINE
: VIDEO OUTPUT SIGNAL LINE
1
CN3701
2
CN3701
-
+
FAN
FAN
CIRCUIT
Q3700,Q3701,Q3702
Q3703,Q3704,Q3705
Q3706,Q3707
Q3703,Q3704,Q3705
Q3706,Q3707
1
CN3700
2
CN3700
-
+
FAN
FROM
DVD MODULE
DVD MODULE
VIDEO DRIVER
C9ZB00000461
IC3400
CRSAG 17
CROUT 18
CBSAG 20
CBOUT 21
CYSAG 23
CYOUT 24
VSAG 29
VOUT 30
CR PR R
15 CRIN
CR PR R
CB PB B
13 CBIN
11 CYIN
CB PB B
Y PY G
8 YIN
6 CVIN
Y PY G
Y
Y
C
4 CIN
C
VIDEO OUT
COMPONENT
VIDEO OUT
PB
PR
Y
JK3400
5
4
2
1
6
3
Click on the first or last page to see other SA-VKX80GA / SA-VKX80GC / SA-VKX80GS service manuals if exist.