Sharp DV-HR300U, Service Manual

Page: 23 / 76

23
DV-HR300U
FLOW CHART No.13
Audio signal recording is impossible. Is E-E signal output?
Refer to Flow chart No.12 "E-E sound is not output".
YES YES YES
YES
YES
Are drive controls of IC7506 and HDD working properly?
Refer to Flow chart No.2 "Drive is not working properly (communication failure with IC7506)" or Flow chart No.3 "HDD is not working properly (communication failure with IC7506)".
Are the following signals including data output from IC3008?
Are the following signals including data output from IC3005 pins to IC3008 pins?
Check lines between pins of IC3005 and IC3008.
IC3008 pin 7 AIN_ABCK IC3008 pin 9 AIN_ALRCK IC3008 pin 12 AIN_ADAT Are the following signals including data output from IC7304? Refer to Flow chart No.4 "Recording is impossible (MPEG stream check)".
NO NO NO
NO
NO
Check IC3008 peripheral circuits or replace IC3008.
IC7304 pin 8 AIN_ABCK IC7304 pin 7 AIN_ALRCK IC7304 pin 9 AIN_ADAT
IC3005 pin 12
→
IC3008 pin 5 AD_BCK
IC3005 pin 10
→
IC3008 pin 11 AD_LRCK
IC3005 pin 9
→
IC3008 pin 14 AD_DOUT
Check lines between pins of IC3008 and IC7304.
IC3008 pin 7
→
IC7304 pin 8 AIN_ABCK
IC3008 pin 9
→
IC7304 pin 7 AIN_ALRCK
IC3008 pin 12
→
IC7304 pin 9 AIN_ADAT
Picture/sound input is impossible from DV input terminal.
Is serial communication normal between pins of IC4005 and IC7506? IC4005 pin 149 -> IC7506 152 (DV_TXD)
Check IC4005, IC7506 and peripheral circuits, and lines between pins of IC4005 and IC7506.
YES
Is 27MHz clock signal INVCK4 input from IC3004 pin 16 to IC4005 pin 50?
Check IC3004 and peripheral circuits, and line between IC3004 pin 16 and IC4005 pin 50.
Picture
Are video data and video clock input from IC4005 pins to pins of IC3508 and IC3509?
Check IC4005 and peripheral circuits, and lines bet- ween IC4005 pins and pins of IC3508 and IC3509.
Is AMCLK input from IC4008 pin 3 to IC4005 pins 103 and 104?
Sound
Check IC4012 and peripheral circuits, and lines between IC4012 pin 4, IC4008 and IC4005 pins 103 and 104.
IC3508 pins 2-9 DV_656 [7-0] IC3509 pin 2 DV_DCK Are video data and video clock input to pins of IC7506 and IC7304? IC7506 pins 181-183, 184 and 186-189 VDI_656 [7-0] IC7506 pin 184 VIDICLK IC7304 pins 16-23 VDI_656 [7-0] IC7304 pin 25 VIDICLK
IC3508 pins 11-18
→
IC7506 pins 181-183, 184 and
186-189 VDI_656 [7-0] IC3509 pin 6
→
IC3506
→
IC7506 pin 184 VIDICLK
IC3508 pins 11-18 -> IC7304 pins 16-23 VDI_656 [7-0] IC3509 pin 6
→
IC3506
→
IC7304 pin 25 VIDICLK
IC4005 pins 40-47
→
IC3508 pins 2-9
DV_656 [7-0] IC4005 pin 51
→
IC3509 pin 2 DV_DCK
Is clock signal input to each pin of IC4002?
Check IC4005, IC4008 and peripheral circuits, lines between pins of IC4005 and IC4002 and peripheral circuits on lines.
IC4002 pin 10 ALRCK Is audio signal output to each pin of IC4002? IC4002 pin 15 DV_AUD_L IC4002 pin 16 DV_AUD_R
IC4005 pin 93
→
IC4002 pin 10 ALRCK
IC4002 pin 11 ADMCLK
IC4005 pin 101
→
IC4008
→
IC4002 pin 11 ADMCLK
IC4002 pin 12 ABCK
IC4005 pin 94
→
IC4002 pin 12 ABCK
Is DAC data PCM1 output to IC4005 pin 96?
Check IC4005 and peripheral circuits. Check line between IC4005 pin 96 and IC4002 pin 9, IC4002 and peripheral circuits.
FLOW CHART No.14
IC4005 pin 150 <- IC7506 156 (DV_RXD)
Check these: IC3508 and peripheral circuits, lines between pins of IC3508, IC7506 and IC7304, IC3509, line between IC3509 output pin and IC7506, lines between pins of IC7304 and peripheral circuits on lines.
YES YES YES YES
NO NO NO NO NO NO NO
YES
NO