Sanyo CDP-MT500 Service Manual page 9

IC BLOCK DIAGRAM & DESCRIPTION
IC701TA211F (3V AM/FM 1Chip Tuner)
IC702 BU2614FS (Tuning PLL)
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IC BLOCK DIAGRAM & DESCRIPTION
IC101A FAN8038B (4 Ch. Driver + DC/DC Converter)
FIL SGND EMPSET ADPVCC
44 43 42
OVP 1
BATT 2
RSTOUT 3
DEDSET 4
BDSW 5
ERRO
6
ERRI 7
SCP
8
OVER
VOLTAGE
PROTECTION
COSC 9
TRIANGLE
WAVE
NC 10 NC
SIGNAL VCC
OPIN(-)
11
12 13 14
SVCC1 OPOUT OPIN(+) SVCC2
Pin D efin ition s
Pin Numb er Pin N ame
1 OVP Battery power supply mode
2 BATT Battery power supply
3 RSTOUT RSTOUT detection output
4 DEDSET DEDSET time setting
5 BDSW Booster transistor drive
6 ERRO Error amp output
7 ERRI Error amp input
8 SCP Short circuit protection setting
9 COSC Triangular wave output
10 N.C No connection
11 OPIN( Op-amp negative input
12 SVCC1 control circuit power supply
13 OPOUT Op-amp output
14 OPIN(+) Op-amp positive input
15 SVCC2 Pre-drive power supply
16 VREF Reference voltage
17 DI3 CH3 control signal input
18 DI4 CH4 control signal input
19 MUTE34 CH3, 4 mute
20 DI2 CH2 control signal input
21 MUTE2 CH2 mute
22 DI1 CH1 control signal input
23 BRAKE CH1 Brake
24 DO4(-) CH4 negative output
25 DO4(+) CH4 positive output
26 DO3(-) CH3 negative output
27 DO3(+) CH3 positive output
28 PGND Power unit power ground
29 DO2(+) CH2 positive output
30 DO2(-) CH2 negative output
31 DO1(+) CH1 positive output
32 DO1(-) CH1 negative output
33 CHGSET Charge current setting
34 RST RSTOUT inverting output
35 EMP Empty detection output
36 DVCC H-bridge power supply
37 PWM PWM transistor drive
38 CLKIN External clock input
39 START Boost DC/DC converter starting
40 STOP Boost DC/DC converter off
41 ADPVCC Charging circuit power supply
42 EMPSET Empty dection level converting
43 SGND Signal ground
44 FIL PWM phase compensation
STOP START CLKIN PWM DVCC EMP RST
41 40 39 38 37 36 35 34
33 CHGSET
32 DO1(-)
STARTER
MAXIMUM
DETECTOIN
31
DO1(+)
! 2
30 DO2(-)
! 2
29 DO2(+)
2
!
28 PGND
2
!
2 27 DO3(+)
!
DO3(-)
2 26
!
DO4(+)
2 25
!
2 24 DO4(-)
!
23 BRAKE
MUTE34 MUTE2
15 16 17 18 19 20 21 22
MUTE34 MUTE2
VREF DI3 DI4 DI2 DI1
Pin Fun ction Descriptio n
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