Sanyo CDP-MT500, Service Manual, Page: 9 / 13

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IC BLOCK DIAGRAM & DESCRIPTION
IC BLOCK DIAGRAM & DESCRIPTION
IC701TA211F (3V AM/FM 1Chip Tuner)
44
1
2
3
4
5
6
8
9
10
11
12 13 14 15 16 17 18 19 20 21 22
23
24
25
26
27
28
29
30
31
32
33
34 35 36 37 38 39 40 41 42 43
7
STARTER
MAXIMUM
DETECTOIN
! 2
!
2
! 2
!
2
!
2
!
2
! 2
!
2
MUTE2
BRAKE
MUTE34
NC
SIGNAL VCC
OVER
VOLTAGE
PROTECTION
TRIANGLE
WAVE
FIL SGND EMPSET ADPVCC
STOP
START CLKIN
PWM
DVCC EMP
OVP
BATT
RSTOUT
DEDSET
BDSW
ERRO
ERRI
SCP
COSC
NC
OPIN(-)
SVCC1 OPOUT OPIN(+) SVCC2 VREF DI3 DI4 MUTE34 DI2 MUTE2 DI1
CHGSET
DO1(-)
DO1(+)
PGND
DO3(+)
DO3(-)
DO4(+)
DO4(-)
BRAKE
DO2(-)
DO2(+)
RST
IC101A FAN8038B (4 Ch. DC/DC Converter)
Pin D efin ition s
Pin Numb er Pin N ame Pin Fun ction Descriptio n
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
IC702 BU2614FS (Tuning PLL)