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Sharp XL-3000V service manual IC801 VHiTA2109F/-1Servo Pre Amp. TA2109F

Models: XL-3000V

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Page 52

XL-3000V

IC801 VHiTA2109F/-1:Servo Pre Amp. (TA2109F)

Pin No.	Terminal Name	Input/Output	Function

1	VCC	—	Power voltage terminal

2	FNI	Input	Main beam amp input terminal

3	FPI	Input	Main beam amp input terminal

4	TPI	Input	Sub-beam amp input terminal

5	TNI	Input	Sub-beam amp input terminal

6	MDI	Input	Monitor photodiode amp input terminal

7	LDO	Output	Laser diode amp output terminal

8	SEL	Input	Laser diode control signal input and APC circuit ON/OFF signal input terminal

9	TEB	Input	Tracking error balance adjustment signal input terminal
			To be controlled by 3-value PWM signal. (PWM carrier = 88.2 kHz)

10	2VRO	Output	Standard voltage (2VR) output terminal. When Vcc = 5V, 2VR = 4.2V.

11	TEN	Input	Tracking error signal generation amp reversed phase input terminal

12	TEO	Output	Tracking error signal generation amp output terminal

13	SBAD	Output	Sub-beam addition signal output terminal

14	FEO	Output	Focus error signal generation amp output terminal

15	FEN	Input	Focus error signal generation amp reversed phase input terminal

16	VRO	Output	Standard voltage (VR) output terminal. When Vcc = 5V, VR = 2.1V.

17	RFRP	Output	Track count signal generation amp output terminal

18	RFIS	Input	RFRP detection circuit input terminal

19	RFGO	Output	RF signal output terminal

20	RFGC	Input	RF amplitude adjustment control signal input terminal
			The amplitude of RF signal can be controlled by using the 3-value PWM signal (PWM
			carrier = 88.2 kHz) which is output from the RFGC terminal of TC9432F.

21	AGCI	Input	RF signal amplitude adjustment amp input terminal

22	RFO	Output	RF signal generation amp output terminal

23	GND	—	GND terminal

24	RFN	Input	RF reversed phase input terminal

IC801 VHiTA2109F/-1:Servo Pre Amp. (TA2109F)

15kΩ

30kΩ

7.67kΩ

LDC

15kΩ

10kΩ

SEL

SW1

SW2

SW3

SBAD 13

10kΩ

12

TEO

L

ON

OFF

OFF

20∝A

30kΩ

50kΩ

20pF

HiZ

OFF

ON

ON

FEO 14

10kΩ

10kΩ

11 TEN

H

OFF

ON

ON

36pF

21kΩ

29kΩ

10pF

7.96kΩ

FEN 15

10 2VRO

10kΩ

24kΩ

24kΩ

VRO 16

21kΩ

21kΩ

3 STATE

9

TEB

DET.

RFRP 17

20kΩ

50∝A

47kΩ

SW1

LDC

8

SEL

12kΩ

12kΩ

1.74kΩ

1kΩ

RFIS 18

Ω

65∝A

SW2

7

LDO

20kΩ

20k

680kΩ

PEAK

SW3

RFGO 19

BOTTOM

180kΩ

6

MDI

20pF

13kΩ

2.12kΩ

RFGC

20

I . I

5

TNI

12kΩ

180kΩ

20pF

21

23.5kΩ

4

AGCI

I . I

TPI

re = 130Ω

20kΩ

180kΩ

22

3

RFO

40pF

20kΩ

FPI

60kΩ

20kΩ

GND

23

60kΩ

2

FNI

1.53kΩ

180kΩ

40pF

20kΩ

RFN 24

Ω

Ω

1

VCC

3.3k

3.3k

Figure 52 BLOCK DIAGRAM OF IC

– 52 –

Image 52

Sharp XL-3000V service manual IC801 VHiTA2109F/-1Servo Pre Amp. TA2109F

Contents

Contents Model XL-3000VAC Power Cord and Plug Adaptor Voltage SelectionSpecifications Names of Parts Front panelDisplay Rear panelRemote control Setting the Clock System Connections Setting the AC voltage selector Connecting the AC power lead Listening to a CD Disassembly LED PWBPWB Removing and Reinstalling the Main Parts How to remove the CD lid See FigPerform steps 1,2 and 7 of the disassembly method to remove CD Mechanism Section See FigAdjustment Setting the Test ModeFM Detection FM Mute LevelIC15V BEXTest Video CD Video PWB-DDisc Checking Setting Checking of vector scope waveformChecking the black-and-white level Video OUTTuner Test Mode Test Outline of tuner radio test mode Turning on the test modeDetails of tuner test mode Timer test Mode Test Electronic volume Test Mode TestLCD Test Mode Test Key input diagnosis Test Mode Test FF/PRESET UP ON-OFF CD PLAY/PAUSE/TUNING UP ON-OFFVolume UP ON-OFF Volume Down ON-OFFSwitch PWB CD Motor PWBFOCUS/TRACKING SPIN/SLED DriverPower PWB-B RminalMain PWB PWBDisplay PWB Lamp PWBTuner PWB IC10V IC15VVideo CD Decoder IC16VBuffer AMP IC11VVideo CD Encoder Terminal PWB-A4 FromVideo PWB-D Tuner PWB-A2 CNS7 FromVideo Signal CD SignalFM Signal VolumeSERVO/SIGNAL Control CD Motor PWB-C CD LID Motor DriverSchematic Diagram 5/10 AM Signal FM Signal Tuner PWB-A2Main PWB-A11/2 CNP307Lamp PWB-A7 Display PWB-A3System Schematic Diagram 8/10 Video PWB-D IC10VROM 256Kx16 Video CD DecoderVideo Signal CD SignalXL-3000V Buffer AMPTo 15 are waveform numbers shown MER AssisFrom Display PWB-A3 SpindleOhms AntennaTo Main PWB-A1 To Video To MainPink Video PWB-D TOP View Video PWB-D Bottom ViewIC14V IC16VWaveforms of CD Circuit When the CD does not function TroubleshootingParts Code UDSKA0004AFZZ HF Error FailureSled Motor Operating FailureLaser failure Focus failureSpindle motor clv servo failure Focus servo sawtooth wave failureDMO HF error No soundTEI Tezi RFISled motor operation failure Track search failureSled servo failure Function Table of IC IC401 VHiLC75342M-1 Function/Volume Equalizer LC75342MPin No Port Name Function Test VSS Pin No Terminal Name Input/Output Function IC701 RH-iX0038SJZZ System Microcomputer/FL driver IX0038SJ SEG25-SEG0IC801 VHiTA2109F/-1Servo Pre Amp. TA2109F Uhso HSO IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F 1/3Pin No Port Name Input/Output Function IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F 2/3 IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F 3/3 IC802 VHiTC9462F/-1 Servo/Signal Control TC9462FCH1-OUT-A CH1-OUT-BCH1-IN-A CH1-IN-BIC14V VHiES3883F/-1 Video CD Encoder ES3883F 1/2 IC14V VHiES3883F/-1 Video CD Encoder ES3883F 2/2 ICV14 VHiES3883F/-1 Video CD Encoder ES3883F IC16V RH-iX0025SJZZ D-RAM 256Kx16 IX0025SJIC15V VHiES3880F/-1 Video CD Decoder ES3880F ES3880F Aclk AOUT/SELPLL0 AtclkLCD701 RV-LX0012SJZZ LCD Display MemoryFor U.S.A. only IC10V RH-IX0041SJZZ IC11V VHINJM4565M-1IC14V IC15VVCKYPA1HB102K VCKYPA1HF223ZRC-GZA227AF1C RC-GZW228AF1VRC-EZD107AF1A VCKYCY1EB104KRC-GZA227AF1A VCKYCY1EB563KR358VRS-CY1JB822J R359VRS-CY1JB182J R360VRS-CY1JB472J R393VRS-CY1JB102J R395VRD-ST2CD473JR607VRS-CY1JB682J R621VRS-CY1JB223JQCNCM998DAFZZ QCNCM037ESJZZCNP801V QCNCW010MSJZZ QCNCW007RSJZZLX-WZ9006SJZZ CPNLS1006SJ01TSPC-0221SJZZ HSY042SPK07302 PWB-A6 PWB-A5PWB-A7 PWB-A3 PWB-A8Copyright 2001 by Sharp Corporation