Panasonic SA-AK500P, Service Manual

Page: 23 / 229

AN7348STA-E1
P.B. EQ /TPS AMP
REC AMP/ALC
IC1001
BU2090AF-E2
I/O EXPANDER
IC1002
D405
(D205)
D404
(D204)
Q1020
(Q1021)
Q1016
Z1002
INTERFACE
S952
(HALF)
S951
(MODE)
D951
1PL 15
BP1
7
1M 13
SOLENOID
12-BIT SHIFT
REGISTER
LA
TCH
OUTPUT BUFFER
2PL
1H
14
10
8
CR02
REC
CLK
DATA
12
11
2
3
D971
MOTOR
SOLENOID
M
Q1019
Q1017
Q1023
Q1018
2 3
Q1001,Q1003
REC:ON/
BEAT PROOF
SWITCHING
(DECK 2)
ERASE HEAD
4
(DECK 1)
P.B. HEAD
LCH
LCH
15
19
6
17(8)
21(4)
24(23)
22(3)
1(2)
L1002
BIAS OSC
CONTROL
Q1004~Q1005,
Q1007
Q1022
9 11
MUTING
Q1014
(Q1015)
NOR/CrO &
HI/LO LOGIC
LOGIC
REC/PB
RIPPLE
REJECTION
LOGIC L/H
ALC
13
14
16
10
-
+
18(7)
20(5)
DECK
MUTING
SWITCH
FILTER
AMP
BUFFER
AMP
Q1012(Q1013)
19 20
X600
XCOUT XCIN
FL DISPLAY
FL600
82~88
REG7/GRID7
44~81
REG1/GRID1 SEG1/REG8 SEG38
FROM POWER
TRANSFORMER
SER4
6
+B
PLUNGER
ON/OFF
SWITCH
MOTOR
SWITCH
CONTROL
CIRCUIT
(DECK 2)
R/P HEAD
Q1008,Q1009 Q1010,Q1011
PHOTOCURRENT
AMPLIFIER
10(11)
LM_L(R)
Z971
INTERFACE
DECK2
1
S972
(HALF)
S973
(CRO2)
S974
(RECINH_R)
S975
(RECINH_F)
IC600 C2BBGF000325
MICROPROCESSOR
IC971
0N2180RLC1
(DECK 2)
IC951
(DECK 1)
0N2180RLC1
S953
(CRO2)
S971
(MODE)
DECK 1
100
SER1
96
SER1
PLUNGER
ON/OFF
SWITCH
PHOTO
INTERRUPTER
PHOTO
INTERRUPTER
PHOTOCURRENT
AMPLIFIER
Q401(Q201)
LEVEL
DETECTOR
SWITCH
BA7755A
IC1004
R/P SELECT