Sharp DV-HR300H (serv.man8) Service Manual ▷ View online
18
DV-HR300S/HR350S
DV-HR300H
DV-HR300X
DV-HR300H
DV-HR300X
Is video signal input to IC2601 pins
18, 13, 23 and 28?
Is luminance signal input to IC2251
pin 1? Is video signal input to
IC2251 pin 2?
Is chroma signal input to IC2251
pins 3 and 5?
FLOW CHART No.9
Image E-E does not appear
.
1
In external video input mode
■
Check line between rear SCAR
T
L1 terminal (SC2601) and IC2601 pin 23.
■
Check line between rear SCAR
T
L2 terminal (SC2602) and IC2601 pin 28.
■
Check line between front video input 3 terminal (J2702) and IC2601 pin 13.
2
In external S input mode
■
Check line between front S
Y
input 3 terminal (J2701) and IC2251 pin 1.
■
Check line between front S C input 3 terminal (J2701) and IC2251pin 3.
3
In U/V tuner mode
Check line between pin 24 of U/V tuner (TU1501) and IC2601 pin 18.
YES
NO
Is video signal input to pins of main unit
connector CN3001?
CN3001 pin 1 CVBS/Y
signal
CN3001 pin 3 C signal
NO
In external video input 1/2/3 mode, U/V tuner
mode:
Is video signal output to IC2601 pin 5?
Is 12V applied to IC2601 pin 14? Is 5V applied to
IC2601 pin 24?
Check or replace IC2601.
Check 12V line and STNBY
5V .
For 12 V line, check IC2691 12V
REG,
A
T14 line of IC2691 pin 1,
and STBY
CTL
line of IC2691 pin
2.
NO
YES
YES
NO
YES
YES
NO
Is signal input to pin 22 IIC_SCL
and pin 21 IIC_SDA
controlling IC2601?
Check IIC_SCL
and IIC_SDA
lines.
YES
NO
YES
In external S input 1/2/3 mode:
Is luminance signal output to IC2251
pin 15?
Is chroma signal output to IC2251
pin 4?
Is S JACK (H) of IC2251 pins 9 and 10 "H" level?
Is F_SJACK(front
AUX3) line of pin 28 "L" level?
NO
Check lien between IC501 pin 30 and IC2251 pins 9
and 10.
Check F_SJACK(front
AUX3) line.
Check circuits and lines between IC2251 pin 15 and CN3001
pin 1 and between IC2251 pin 4 and CN3001 pin 3.
IC2251 pin 15
→
Q2254
→
S2202 pin 1
→
CN3001 pin 1
CVBS/Y
signal
IC2251 pin 4
→
S2202 pin 3
→
CN3001 pin 3 C signal
Is video signal input to each pin of IC3502?
IC3502 pin 135 CVBS/Y
signal
IC3502 pin 149 C signal
NO
Check lines between pins of CN3001 and IC3502 as well as
circuits on lines.
CN3001 pin 1
→
Q3502, 3505, 3501
→
IC3502 pin 135
CVBS/Y
signal
CN3001 pin 3
→
Q3504, 3507, 3503
→
IC3502 pin 149 C
signal
3
YES
NO
Check 1.5V line, 1.5VREG.IC3504 and peripheral circuits.
Check YCDEC_RST
line.
NO
Are D_3.3V (1) and
A_3.3V applied to each pin
of IC3502?
Check D_3.3V (1) and
A_3.3V lines.
Is 1.5V applied to each pin of IC3502?
YES
NO
After power on, is IC3502 pin 84
YCDEC_RST
line at "L" level and changed to "H" level?
YES
NO
Is 3.3V applied to each pin of IC3503?
Check D_3.3V (1) line.
YES
NO
NO
Is clock signal SDRCLK input to IC3503 pin 35?
Is digital data
YC_656 [2-9] output to each pin of
IC3502?
IC 3502 pins 56, 58, 59, 61, 62, 64, 65 and 67
YC_656 [2-9]
Check SDRCLK line between IC3502 pin 17 and IC3503 pin 35.
Check IC3502 and peripheral circuits.
YES
NO
Is video signal output to each pin of IC7506?
IC7506 pin 218 (R7743)
Y
(Q7506 pin 5 B)
IC7506 pin 214 (R7744) C (Q7505 pin 5 B)
IC7506 pin 245 (R7724) CB (B_U) (Q7503 B)
IC7506 pin 224 (R7737) CR (R_V) (Q7502 B)
Check IC7506 and peripheral circuits.
3
YES
NO
Is video signal output to each pin of CN3001?
CN3001 pin 23 I54_Y
CN3001 pin 25 I54_C
CN3001 pin 19 CB (I54_B/U)
CN3001 pin 20 CR (I54_R/V)
YES
Refer to Flow chart No.6/No.7 "Playback images do
not appear properly".
Check lines between pins of IC7506 and CN3001 as well as circuits
on lines.
IC7506 pin 218 (R7743)
→
Q7506
→
Q7509
→
IC7512
→
Q7510
→
CN3001 pin 23 154_Y
IC7506 pin 214(R7744)
→
Q7505
→
CN3001 pin 25 I54_C
IC7506 pin 245 (R7724)
→
Q7503
→
CN3001 pin 19 I54_B/U
IC7506 pin 224 (R7737)
→
Q7502
→
CN3001 pin 20 I54_R/V
NO
Are signals VIDICLK, VIDIHD and VIDIVD input to
each pin of IC7506?
IC7506 pin 184 VIDICLK, pin 177 154_VIDIHD, pin
178 154_VIDIVD
Check VIDICLK, VIDIHD and VIDIVD lines.
YES
YES
NO
Is digital data VDI_656 [0-7] input to each pin of
IC7506?
IC7506 pins 194, 186, 187, 188, 189, 181, 182 and
183 VDI_656 [0-7]
YES
Check lines between pins of IC3502 and IC7506 as well as circuits
on lines.
IC 3502 pins 56, 58, 59, 61, 62, 64, 65 and 67
→
IC3507
→
IC7506
pins 194, 186, 187, 188, 189, 181, 182 and 183
19
DV-HR300S/HR350S
DV-HR300H
DV-HR300X
DV-HR300H
DV-HR300X
FLOW CHART No.10
V
ideo signal recording is impossible.
Is E-E signal output?
YES
NO
NO
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)".
YES
NO
Is digital data input to each pin of IC7304?
IC7304 pins 16-23 VDI_656 [0-7]
YES
NO
Is 81MHz clock signal MMCLK output to IC7304 pin
118?
Check IC7304 and peripheral circuits.
YES
NO
Is 81MHz clock signal MMCLK output to pin 38 of
IC7306 and 7307?
Refer to Flow chart No.4 "Recording is impossible
(MPEG stream check)".
Check MMCLK lines between IC7304 pin 1
18 and pin 38 of
IC7306 and 7307.
YES
Refer to Flow chart No.9 "Image E-E does not appear".
Check digital data lines between pins of IC3507 and IC7304.
IC3507 pins 1
1-18
→
IC7304 pins 16-23 VDI_656 [0-7]
20
DV-HR300S/HR350S
DV-HR300H
DV-HR300X
DV-HR300H
DV-HR300X
Is drive control of IC7506 working properly?
Is HDD control working properly?
FLOW CHART No.1
1
Playback sound is not output properly
.
NO
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)".
YES
NO
Is audio digital signal output to each pin of
IC7506?
IC7506 pin 235 I54_AMCLK
IC7506 pin 217 I54_ABCLK
IC7506 pin 222 I54_ALRCK
IC7506 pin 209 I54_ADA
T
A
YES
YES
NO
Is 5V applied to IC3009 pin 14?
Check or repair IC3009.
Check A_5V
line.
Is audio signal output to each pin of IC3009?
IC3009 pin 1
1
AUDIO_OUT_L
IC3009 pin 10
AUDIO_OUT_R
YES
NO
YES
Check IC7506 and peripheral circuits.
NO
Is 5V applied to IC6501 pin 8, and -5V applied to pin 4?
Check IC6501 peripheral circuits or replace IC6501.
Check PC_5V (1) line and PC_-5V line.
Is audio signal output to each pin of IC6501?
IC6501 pin 1 OUT1_L
OUT2_L
IC6501 pin 7 OUT1_R OUT2_R
YES
NO
NO
NO
NO
Is audio signal output to each output terminal?
Is audio signal (L) output to
AUDIO OUTPUT(L)
terminal (JC2601)?
Is audio signal (R) output to
AUDIO
OUTPUT(R) terminal (JC2601)?
Is audio signal (L) output to SCAR
T
L1 terminal
(SC2601)?
Is audio signal (R) output to SCAR
T
L1 terminal
(SC2601)?
Check line from IC6501 pin 1 to
AUDIO OUT
terminal
(JC2601) and
AUDIO OUT
terminal (JC2601).
Check line from IC6501 pin 7 to
AUDIO OUT
terminal
(JC2601) and
AUDIO OUT
terminal (JC2601).
Check kine from IC6501 pin 1 to IC2601 pin 2 and line from
IC2601 pin 42 and SCAR
T
L1 (SC2601) terminal.
Check kine from IC6501 pin 7 to IC2601 pin 1 and line from
IC2601 pin 43 and SCAR
T
L1 (SC2601) terminal.
NO
YES
NO
Check lines between pins of IC3009 and CN3001.
IC3009 pin 1
1
→
CN3001 pin 1
1
VOUT_L
IC3009 pin 10
→
CN3001 pin 12 VOUT_R
Is audio signal output to pins of main unit
connector CN3001?
CN3001 pin 1
1
VOUT_L
CN3001 pin 12 VOUT_R
YES
NO
Check lines between pins of CN3001 and IC6501.
CN3001 pin 1
1
→
S2202 pin 1
1
→
IC6501 pin 3 VOUT_L
CN3001 pin 12
→
S2202 pin12
→
IC6501 pin 5 VOUT_R
Is audio digital signal output to each pin of
IC6501?
IC6501 pin 3 VOUT_L
IC6501 pin 5 VOUT_R
YES
NO
Check lines between pins of IC7506 and IC3009.
IC7506 pin 235
→
IC3009 pin 1 I54_AMCLK
IC7506 pin 217
→
IC3009 pin 2 I54_ABCLK
IC7506 pin 222
→
IC3009 pin 4 I54_ALRCK
IC7506 pin 209
→
IC3009 pin 3 I54_ADA
T
A
Is audio digital signal output to each pin of
IC3009?
IC3009 pin 1 I54_AMCLK
IC3009 pin 2 I54_ABCLK
IC3009 pin 4 I54_ALRCK
IC3009 pin 3 I54_ADA
T
A
YES
NO
Check lines between pins of IC7506 and IC3009.
IC7506 pin 263
→
IC3009 pin 8 SPIDAO
IC7506 pin 264
→
IC3009 pin 7 SPICLK
IC7506 pin 268
→
IC3009 pin 6 DAC1_L
Is system control signal output to each pin of
IC3009?
IC3009 pin 8 SPIDAO
IC3009 pin 7 SPICLK
IC3009 pin 6 DAC1_L
NO
12V
: Check input voltage of IC2691
A
T14V
, pin 3 output,
and line of IC2601 pin 14.
5V
: Check STNDBY
5V line.
Is 12V supplied to IC2601 pin 14 and 5V to pins
24 and 29?
YES
NO
Are IIC SCL
and IIC SDA
input to IC2601 pins
22 and 21?
Check IIC SCL
and IIC SDA
lines between
IC501 pins 18 and 17 and IC2601 pins 22 and
21.
Output to IC2601 pins 42 and 43?
21
DV-HR300S/HR350S
DV-HR300H
DV-HR300X
DV-HR300H
DV-HR300X
Is audio signal input to IC2601 pins
15, 16, 10, 1
1, 36, 37, 33 and 34?
FLOW CHART No.12
Sound E-E is not output.
1
In external input mode
■
Check lines between rear SCAR
T
L1 terminal (SC2601) and IC2601 pins 36/37.
■
Check lines between rear SCAR
T
L2 terminal (SC2602) and IC2601 pins 33/34.
■
Check lines between front audio input terminal (J2702) and IC2601 pins 10/1
1.
2
In U/V tuner mode
Check these: periphery of U/V tuner (TU1501), line between pin 22 of U/V tuner and
IC1701 pin 2, periphery of IC1701, and lines between IC1701 pins 30/31 and IC2601
pins 15/16.
NO
Is audio signal input to each pin of IC6102?
IC6102 pin 3
AUDIO_L
IN
IC6102 pin 5
AUDIO_R IN
NO
Is audio signal output to each pin of IC2601?
IC2601 pin 39
AUDIO_L
IN
IC2601 pin 40
AUDIO_R IN
Is 12V applied to IC2601 pin 14, and 5V applied to pins
24 and 29?
Check or replace IC2601.
12V
: Check input
A
T14V line to IC2691.
5V
: Check STNDBY
5V line.
NO
YES
YES
YES
NO
Check IIC SCL
and IIC SDA
lines of pins 22 and 21
controlling IC2601.
Check each control signal line.
Check PC_5V (1) line and PC_-5V line.
NO
NO
Check EE_AMCLK line.
NO
Check lines between pins of IC2601 and IC6102.
IC2601 pin 39
→
IC6102 pin 3
AUDIO_L
IN
IC2601 pin 40
→
IC6102 pin 5
AUDIO_R IN
Is audio signal output to pins of main unit
connector CN3001?
CN3001 pin 8
AUD_L_ADIN
CN3001 pin 7
AUD_R_ADIN
NO
Check lines between pins of IC6102 and CN3001.
IC6102 pin 1
→
S2202 pin 8
→
CN3001 pin 8
AUD_L_ADIN
IC6102 pin 7
→
S2202 pin 7
→
CN3001 pin 7
AUD_R_ADIN
Is audio signal input to each pin of IC3002?
IC3002 pin 13
AUD_L_ADIN
IC3002 pin 3
AUD_R_ADIN
NO
YES
YES
Check lines between pins of CN3001 and IC3002.
CN3001 pin 8
→
IC3002 pin 13
AUD_L_ADIN
CN3001 pin 7
→
IC3002 pin 3
AUD_R_ADIN
4
NO
NO
YES
Refer to Flow chart No.1
1 "Playback sound is not
output properly".
Check or replace IC3005.
YES
YES
Check IC7506 or peripheral circuits.
4
YES
NO
NO
Is audio digital signal output to each pin of IC7506?
IC7506 pin 235 154_AMCLK
IC7506 pin 217 154_ABCLK
IC7506 pin 222 154_ALRCK
IC7506 pin 209 154_ADA
T
A
Is audio digital signal output to each pin of IC7506?
IC7506 pin 248
AD_DOUT
IC7506 pin 221
AD_BCK
IC7506 pin 230
AD_LRCK
Is audio digital signal output to each pin of IC3005?
IC3005 pin 9
AD_DOUT
IC3005 pin 12
AD_BCK
IC3005 pin 10
AD_LRCK
Is audio signal input to each pin of IC3005?
IC3005 pin 2
AUD_L_ADIN
IC3005 pin 1
AUD_R_ADIN
ICheck lines between pins of IC3005 and IC7506.
IC3005 pin 9
→
IC7506 pin 248
AD_DOUT
IC3005 pin 12
→
IC7506 pin 221
AD_BCK
IC3005 pin 10
→
IC7506 pin 230
AD_LRCK
YES
Is audio signal output to each pin of IC6102?
IC6102 pin 1 INPUT_L
IC6102 pin 7 INPUT_R
Is 5V applied to IC6102 pin 8, and -5V applied to pin 4?
NO
Is 5V applied to IC3005 pin 6, and 3.3V applied to pin
7?
Is EE_AMCLK signal input to IC3005 pin 1
1
?
Check
A_5V line and D_3.3V (1) line.
YES
YES
YES
YES
NO
Check lines between pins of IC3003 and IC3005.
IC3003 pin 7
→
IC3005 pin 2
AUD_L_ADIN
IC3003 pin 1
→
IC3005 pin 1
AUD_R_ADIN
YES
YES
Is audio signal output to each pin of IC3003?
IC3003 pin 7
AUD_L_ADIN
IC3003 pin 1
AUD_R_ADIN
Is 5V applied to IC3003 pin 8, and -5V applied to pin 4?
Check
A_5V line and PC_-5V line.
NO
YES
NO
Check IC3003 peripheral circuits or replace IC3003.
Is audio signal input to each pin of IC3003?
IC3003 pin 5
AUD_L_ADIN
IC3003 pin 3
AUD_R_ADIN
NO
YES
Check lines between pins of IC3002 and IC3003.
IC3002 pin 14
→
IC3003 pin 5
AUD_L_ADIN
IC3002 pin 4
→
IC3003 pin 3
AUD_R_ADIN
Is audio signal output to each pin of IC3002?
IC3002 pin 14
AUD_L_ADIN
IC3002 pin 4
AUD_R_ADIN
Is 5V applied to IC3002 pin 16, and -5V applied to pin
7?
Check
A_5V line and PC_-5V line.
NO
YES
NO
Check IC3002 peripheral circuits or replace IC3002.
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