Yamaha CL3 Service Manual page 92

CL3/CL1
LTC3615EUF#TRPBF (YD559A00) DC-DC CONVERTER
PIN
NAME I/O
NO.
1
ITH1
2 I
V
FB1
3 MODE
4 PHASE
5 I
V
FB2
6
ITH2
7 I
TRACK/SS2
8 SGND
9 PV I
IN2
10 I
PV
IN2
11
SW2
12
SW2
13 RUN2
BD8113EFV-E2 (YD627A00) LED DRIVER
PIN
NAME I/O
NO.
1 COMP O
2 SS I
3 -
VCC
4 I
EN
5 I
RT
6 SYNC I
7 GND
8 I
PWM
9 O
FAIL1
10 O
FAIL2
11
LEDEN
12 LED1
TLC5941PWPR
PIN
NAME I/O
NO.
92
FUNCTION
Error Amplifier Compensation.
Voltage Feedback Input Pin for Channel 1.
Mode Selection.
Phase Shift Selection.
Voltage Feedback Input Pin for Channel 2.
Error Amplifier Compensation of Channel 2.
Internal, External Soft-Start, External.
Reference Input for Channel 2.
Signal Ground.
Channel 2 Power Supply Input.
Channel 2 Power Supply Input.
Channel 2 Switching Nod.
Channel 2 Switching Nod.
Enable Pin for Channel 2.
FUNCTION
Error amplifier output
Soft start time-setting capacitance input
Input power supply
Enable input
Oscillation frequency-setting resistance input
External synchronization signal input
Small-signal GND
PWM light modulation input
Failure signal output
LED open/short detection signal output
LED output enable pin
LED output 1
LED DRIVER
FUNCTION
PIN
NAME I/O
NO.
14 RUN1 Enable Pin for Channel 1.
15 R /SYNC Oscillator Frequency.
T
16 PGOOD2 O Power Good Output for Channel 2.
17
SRLIM Slew Rate Limit.
18 PGOOD1 O Power Good Output Pin for Channel 1.
19 SW1 Channel 1 Switching Node.
20 SW1 Channel 1 Switching Node.
21 PV I Channel 1 Power Supply Input.
IN1
22 PV I Channel 1 Power Supply Input.
IN1
23 Signal Input Supply.
SV I
IN
24 TRACK/SS1 I Internal, External Soft-Start, External.
Reference Input for Channel 1.
25 PGND Power Ground.
PIN
NAME I/O
NO.
13 LED2 LED output 2
Over-voltage detection input
14 OVP I
15 VDAC I DC variable light modulation input
16 ISET I/O LED output current-setting resistance input
17 PGND O LED output GND
18 OUTL O Low-side external MOSFET Gate Drive out put
19 DGND O Low-side internal MOSFET Source out put
20 SW High-side external MOSFET Source pin
21 OUTH I High-side external MOSFET Gate Drive out pin
22 CS DC/DC Current Sense Pin
23 BOOT - High-side MOSFET Power Supply pin
24 VREG O Internal reference voltage output
PIN
NAME I/O
NO.
CPU: IC105
FUNCTION
LCDC: IC106
FUNCTION
FUNCTION