Clarion VRX765VD Service Manual page 10

EXPLANATION OF IC
051-3924-90 MD1424R
R/C (H-ON) 18
CONTROL
Error Amp out 12
Error Amp in- 13 -
+
+
-
OSC
-
+
051-3925-90 OZ9910ISN-T2
Vref 12
Voltage Ref
Current Bias
GND A 4
LCT 6 LF OSC
ADJ 7
Current
I-SENSE 11
Control
Feedback
Logic
Control
Voltage
V-SENSE 9
Feedback
3V
Control
Feedback Control
CMP/SST 10
TerminalDescription
pin 1: N DRV 4 : Bottom MOSFET gate drive output in dual
forward converter.
pin 2: P GND : High-current power ground.
pin 3: N DRV 2 : Bottom MOSFET gate drive output in dual
forward converter.
pin 4: GND A : Low-current signal ground.
pin 5: CT : High frequency oscillator capacitor for oper-
ation and striking frequency.
pin 6: LCT : Low frequency timing capacitor for LPWM
dimming and striking timer.
pin 7: ADJ : Signal input for LPWM/ analog dimming.
pin 8: ENA : Enable and reset.
pin 9: V-SENSE : Transformer output over-voltage and over-
current detection.
pin 10: CMP/SST : Soft start and loop compensation capacitor.
pin 11: I-SENSE : Lamp current sensing and lamp
tion.
pin 12: Vref : Reference voltage output.
pin 13: VIN : Supply voltage for IC.
pin 14: HSB : High side driver buffer output.
pin 15: P DRV 3 : Top MOSFET gate drive output in dual for-
ward converter.
pin 16: P DRV 1 : Top MOSFET gate drive output in dual for-
ward converter.
051-6456-00 YGV629-VZ
TerminalDescription
pin 1: PLL VDD : - : PLL power supply.
pin 2: PLL FILTER : - : PLL filter connection.
pin 3: PLL VSS : - : PLL ground.
pin 4: NC : - : Not in use.
pin 5: PLL CTL 5 : IN : PLL multiply select.
VRX765VD
VRX766VD
DC to DC Converter
Boot
strap
Thermal
shut down
High
side
Dead
Driver
time
R
Q Control Low
S
side
Driver
Dual Forward PWM Controller
High-side
14 HSB
Driver Buffer
16 P DRV 1
15 P DRV 3
Output
3 N DRV 2
Driver
1 N DRV 4
2 P GND
HF OSC 5 CT
LFCK HFCK
Protection 8 ENA
on detec-
Video display processor
pin 6: PLL CTL 4 : IN : PLL multiply select.
pin 7: PLL CTL 3 : IN : PLL multiply select.
pin 8: PLL CTL 2 : IN : PLL multiply select.
pin 9: PLL CTL 1 : IN : PLL multiply select.
pin 10: PLL CTL 0 : IN : PLL multiply select.
pin 11: DT CK Sel_N : IN : Display clock select.
pin 12: DT CK IN : IN : Display clock input.
pin 13: VSS : - : Digital ground.
pin 14: VDD : - : Digital power supply.
pin 15: CPU D 0 :I/O: CUP interface. Data bus.
pin 16: CPU D 1 :I/O: CUP interface. Data bus.
pin 17: CPU D 2 :I/O: CUP interface. Data bus.
pin 18: CPU D 3 :I/O: CUP interface. Data bus.
pin 19: CPU D 4 :I/O: CUP interface. Data bus.
pin 20: CPU D 5 :I/O: CUP interface. Data bus.
pin 21: CPU D 6 :I/O: CUP interface. Data bus.
pin 22: CPU D 7 :I/O: CUP interface. Data bus.
pin 23: CPU WAIT_N : O : CUP interface. Wait.
pin 24: CPU READY_N : O : CUP interface. Ready.
pin 25: CPU INT_N : O : CUP interface. Interrupt.
pin 26: VDD : - : Digital power supply.
pin 27: VSS : - : Digital ground.
pin 28: CPU CS_N : IN : CUP interface. Chip select.
pin 29: CPU WR_N : IN : CUP interface. Write command.
pin 30: CPU RD_N : IN : CUP interface. Read command.
pin 31: CPU PS 2 : IN : CUP interface. Port select.
pin 32: CPU PS 1 : IN : CUP interface. Port select.
pin 33: CPU PS 0 : IN : CUP interface. Port select.
pin 34: CPU SD OUT : O : CUP interface. Serial data output.
pin 35: CPU S D IN : IN : CUP interface. Serial data input.
pin 36: CPU S CS_N : IN : CUP interface. Serial chip select.
pin 37: CPU S CLK : IN : CUP interface. Serial clock.
pin 38: CPU SER_N : IN : CUP interface. Parallel/Serial select.
pin 39: CPU RESET_N : IN : CUP interface. Reset.
pin 40: VSS : - : Digital ground.
pin 41: VDD : - : Digital power supply.
pin 42: Memo A 0 : O : Pattern Memory interface. Address output.
pin 43: Memo A 1 : O : Pattern Memory interface. Address output.
pin 44: Memo A 2 : O : Pattern Memory interface. Address output.
pin 45: Memo A 3 : O : Pattern Memory interface. Address output.
pin 46: Memo A 4 : O : Pattern Memory interface. Address output.
pin 47: Memo A 5 : O : Pattern Memory interface. Address output.
pin 48: VSS : - : Digital ground.
pin 49: Memo A 6 : O : Pattern Memory interface. Address output.
pin 50: Memo A 7 : O : Pattern Memory interface. Address output.
pin 51: Memo A 8 : O : Pattern Memory interface. Address output.
pin 52: Memo A 9 : O : Pattern Memory interface. Address output.
pin 53: Memo A 10 : O : Pattern Memory interface. Address output.
pin 54: Memo A 11 : O : Pattern Memory interface. Address output.
pin 55: VDD : - : Digital power supply.
pin 56: VSS : - : Digital ground.
pin 57: Memo A 12 : O : Pattern Memory interface. Address output.
pin 58: Memo A 13 : O : Pattern Memory interface. Address output.
pin 59: Memo A 14 : O : Pattern Memory interface. Address output.
pin 60: Memo A 15 : O : Pattern Memory interface. Address output.
pin 61: Memo A 16 : O : Pattern Memory interface. Address output.
pin 62: Memo A 17 : O : Pattern Memory interface. Address output.
pin 63: VSS : - : Digital ground.
pin 64: Memo A 18 : O : Pattern Memory interface. Address output.
pin 65: Memo A 19 : O : Pattern Memory interface. Address output.
pin 66: Memo A 20 : O : Pattern Memory interface. Address output.
pin 67: Memo A 21 : O : Pattern Memory interface. Address output.
pin 68: Memo A 22 : O : Pattern Memory interface. Address output.
pin 69: Memo A 23 : O : Pattern Memory interface. Address output.
pin 70: Memo A 24 : O : Pattern Memory interface. Address output.
pin 71: VDD : - : Digital power supply.
pin 72: VSS : - : Digital ground.
pin 73: Memo WE_N : O : Pattern Memory interface. Write command.
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