Ic Block Diagrams & Ic Pins Description - Akai DV-R4200SS Service Manual

VOLTAGE CHART - CONTINUED
IC401 (TA2099N)
PIN'S NUMBER 1 2 3
AM 1.97 2.72 0.11 1.97
FM 1.95 2 0
PIN'S NUMBER 9 10 11
AM 4.96 0.04 5.68 0.76
FM 4.98 4 4.13 0.77
PIN'S NUMBER 17 18 19
AM 1.19 0.48 2.05 1.81
FM 1.19 1.32 1.99 2.44
IC403 (BU1923F/BU1924F)
PIN'S NUMBER 1 2 3
FM 2.13 2.41 2.30 2.27
PIN'S NUMBER 9 10 11
FM 0 0 0 4.30
SUB-WOOFER SECTION
TEST POINT: DVD PLAY
IC401 (LM324N)
PIN'S NUMBER 1 2 3
0 0 0 13.5
PIN'S NUMBER 8 9 10
0 0 0 -13.19
4 5 6 7 8
1.34 6.37 0.48 0
2 0.97 7.43 1.29 0
12 13 14 15 16
0.77 0.11 4.89 4.92
0.77 0 0.52 0.65
20 21 22 23 24
1.97 1.97 6.43 1.97
1.97 1.97 7.40 1.97
4 5 6 7 8
4.30 0 0 2.29
12 13 14 15 16
0 2.06 0 2.05
4 5 6 7
0 0 0
11 12 13 14
0 0 -13.2
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IC BLOCK DIAGRAMS & IC PINS DESCRIPTION
IC304 PT6311
Control
DIN
Serial
DOUT
Data
CLK Display Memory
Interface
(20 bits x 16 Words)
STB
VDD
R
OSC Timing Generator
OSC
SW1
General
SW2
Input
SW3
Register
Key Matrix Memory
SW4
LED1
LED2
LED
LED3
Driver
LED4
LED5
K1 K2 K3 K4
IC401 TA2099N
FM IF MIX AM IF
VSTB QUAD
IN OUT IN
24 23 22 21 20
19
REF
FM
FM
DET
IF
FM
IF
AM
AM BUFF
OSC
MIX
1 2 3 4 5 6
AM
AM FM BW FM VL AM
VCC
RFIN OSC
SENS OSC
OUT
SG1/KS1
SG2/KS2
SG3/KS3
SG4/KS4
SG5/KS5
SG6/KS6
Segment
SG7/KS7
Driver/
SG8/KS8
SG9/KS9
Grid
SG10/KS10
Driver/
SG11/KS11
SG12/KS12
SG13/GR16
Key Scan
Output
SG14/GR15
SG15/GR14
SG16/GR13
SG17/GR12
SG18/GR11
SG19/GR10
SG20/GR9
GR1
GR2
GR4
Grid
Dimming Circuit
Driver
GR5
GR6
GR7
GR8
VDD GND VEE
FM AM FM ST
LPF1 LPF2 BLENDER
OUT OUT DET IN
18 17 16 15 14
AF
VCO
DIVIDE
DECODE
MUTE
ANTI BIRDIE
LEVEL
SW
AM
DET
ST/MO
FM/AM
IF
BUFF
TUN ST
AGC IF REQ SW
7 8 9 12
10 11
ST
IF TUN
AGC
GND
LED
OUT/REQ LED
70
L OUT
13
R OUT