72
71
1
2
3
4
A
B
-
-
+
+
5
6
7
8
IC502, IC506 LS4558N
IC604 NJM4558D/4558D
1
14
2
13
3
12
4
11
5
10
6
9
7
8
1A
Vcc
1Y
6A
2A
6Y
2Y
3A
5Y
5Y
3Y
4A
GND
4Y
U9 TC74HCU04AF
U5 SST39VF800A
I/O Buffers and Data Latches
Y-Decoder
EEPROM
Cell Array
X-Decoder
Address Buffer & Latches
Control Logic
Memory Address
CE#
OE#
WE#
DQ - DQ
15
0
-
+
VCC
GND
CTL
2
1
3
4
5
REFERENCE
VOLTAGE
C
OUT
+
IC802, IC803 BA05ST
IC801 LM78L05ACZ
STARTING
CIRCUIT
CURRENT
GENERATOR
REFERENCE
VOLTAGE
ERROR
AMPLIFIER
THERMAL
PROTECTION
SOA
PROTECTION
SERIES
PASS
ELEMENT
1
INPUT
2
OUTPUT
3
GND
Interpolator
Equalizer
Viterbi
Algorithm
Reconstructed
data
Threshold
Edge
flag/pos
Width
Measurer
Threshold
DPLL
Frequency
Detector
MUX
Defect
Detector
Defect
Lock
Defect
PLL rate
PLL data
EQ data
PLL offset
AGC
ADC data
U2 ZR36768PQC
IC601, IC602, IC603 TA8258H
2
12
10
7
3
1
5
4
+
+
1
1
AMP2
AMP1
IN2
OUT2
400ohm
400ohm
20kohm
20kohm
PRE-GND
PW-GND
OUT1
IN1
RIP-FIL
VCC
6
9
11
8
1
1 4
2
1 3
3
1 2
4
1 1
5
1 0
6
9
7
8
1
4
-
-
+
+
2
3
Vout1
Vin(-)1
Vin(+)1
V c c
Vin(+ )2
Vin(-)2
Vou t2
Vout4
V in(-)4
V in(+)4
V
E E
Vin(+ )3
Vin(-)3
Vout3
-
-
+
+
IC401 LM324N
Summary of Contents for DVR4200SS
Page 1: ...SERVICE MANUAL Model DV R4200SS DVD HOME THEATER SYSTEM www akai ru ...
Page 15: ...SUBWOOFER MAIN PCB ASW3 01 01 26 25 ...
Page 16: ...MPEG SERVO PCB TOP VIEW STS71AAST 01 05 28 27 ...
Page 17: ...MPEG SERVO PCB BOTTOM VIEW STS71AAST 01 05 30 29 ...
Page 48: ...92 91 EXPLODED DRAWINGS MAIN UNIT DVD MECHANISM STSD 010SMT ...
Page 49: ...94 93 ACTIVE SUB WOOFER ASWT1 ...
Page 50: ... 4 SPEAKER SSQE3 96 95 ...
Page 51: ... CENTER SPEAKER SSQCE3 97 Printed in China December 2003 808 25EAST 020 ...