Sony HT-ST5 Service Manual ▷ View online
HT-ST5
33
SECTION 4
TROUBLESHOOTING
1. “PRTECT” is displayed on the fl uorescent indicator tube after turning the power on
“PRTECT” is displayed on the
fluorescent indicator tube after turning
the power on.
fluorescent indicator tube after turning
the power on.
Yes
“PRTECT” is not displayed on the
fluorescent indicator tube, when
removing the speaker (SP1, SP2, SP3,
SP4, SP5, SP6, SP7, SP8, SP9) and
turning the power on.
fluorescent indicator tube, when
removing the speaker (SP1, SP2, SP3,
SP4, SP5, SP6, SP7, SP8, SP9) and
turning the power on.
No
Replace the IC3001, IC3003, IC3005
and IC3007 on the AMP board.
and IC3007 on the AMP board.
IC3001, IC3003, IC3005 and IC3007
on the AMP board is burned out.
on the AMP board is burned out.
Yes
Yes
Check the speaker (SP1, SP2, SP3,
SP4, SP5, SP6, SP7, SP8, SP9) and
connection cable, and replace the
speaker (SP1, SP2, SP3, SP4, SP5,
SP6, SP7, SP8, SP9).
SP4, SP5, SP6, SP7, SP8, SP9) and
connection cable, and replace the
speaker (SP1, SP2, SP3, SP4, SP5,
SP6, SP7, SP8, SP9).
The voltage of the following is 3.3 V.
MAIN board: IC1002 pin 18
MAIN board: IC1002 pin 18
The voltage of the following is 3.3 V.
MAIN board: IC1002 pin 74
MAIN board: IC1002 pin 74
No
The voltage of the following is 12 V.
AMP board: IC3008 pin 4
AMP board: IC3008 pin 4
No
Yes
Replace the complete MAIN board.
Yes
No
No
No
No
OUT_A line (pin 39), OUT_B line
(pin 36), OUT_C line (pin 31) and
OUT_D line (pin 28) of IC3001, IC3003,
IC3005 and IC3007 on the AMP board
do not short-circuits or opens.
(Except OUT_A line (pin 39) and
OUT_B line (pin 36) of IC3001)
(pin 36), OUT_C line (pin 31) and
OUT_D line (pin 28) of IC3001, IC3003,
IC3005 and IC3007 on the AMP board
do not short-circuits or opens.
(Except OUT_A line (pin 39) and
OUT_B line (pin 36) of IC3001)
Replace the IC3001, IC3003, IC3005
and IC3007 on the AMP board.
and IC3007 on the AMP board.
Yes
Replace the IC3001, IC3003, IC3005
and IC3007 on the AMP board.
and IC3007 on the AMP board.
Yes
Yes
Mounted parts on the OUT_A line
(pin 39), OUT_B line (pin 36), OUT_C
line (pin 31) and OUT_D line (pin 28) of
IC3001, IC3003, IC3005 and IC3007 on
the AMP board short-circuits or opens.
(Except OUT_A line (pin 39) and
OUT_B line (pin 36) of IC3001)
(pin 39), OUT_B line (pin 36), OUT_C
line (pin 31) and OUT_D line (pin 28) of
IC3001, IC3003, IC3005 and IC3007 on
the AMP board short-circuits or opens.
(Except OUT_A line (pin 39) and
OUT_B line (pin 36) of IC3001)
The PWM signal is inputted OUT_A line
(pin 6), OUT_B line (pin 8), OUT_C line
(pin 16) and OUT_D line (pin 18) of
IC3001, IC3003, IC3005 and IC3007 on
the AMP board.
(Except OUT_A line (pin 6) and OUT_B
line (pin 8) of IC3001)
(pin 6), OUT_B line (pin 8), OUT_C line
(pin 16) and OUT_D line (pin 18) of
IC3001, IC3003, IC3005 and IC3007 on
the AMP board.
(Except OUT_A line (pin 6) and OUT_B
line (pin 8) of IC3001)
Repair the short-circuit and opening
of mounted parts.
of mounted parts.
Yes
Check and repair the area surrounding
IC3008 on the AMP board.
IC3008 on the AMP board.
Check and repair the area surrounding
IC3004 on the AMP board.
IC3004 on the AMP board.
HT-ST5
34
2. The sound is not outputted
After entering to the tone test mode
(Refer to 2-9. Tone test mode on the
SECTION 3 TEST MODE on page 30),
test signal is outputted.
(Refer to 2-9. Tone test mode on the
SECTION 3 TEST MODE on page 30),
test signal is outputted.
The sound is not outputted.
No
Yes
Check and repair the signal path for
being inputted to the DSP (IC5001)
on the MAIN board.
(DSP (IC5001) on the MAIN board and
digital power amplifier (IC3001, IC3003,
IC3005, IC3007) on the AMP board is
OK)
being inputted to the DSP (IC5001)
on the MAIN board.
(DSP (IC5001) on the MAIN board and
digital power amplifier (IC3001, IC3003,
IC3005, IC3007) on the AMP board is
OK)
Yes
Check and repair the area surrounding
IC3004 on the AMP board.
IC3004 on the AMP board.
No
Check and repair the area surrounding
IC3004 on the AMP board.
IC3004 on the AMP board.
No
Yes
Yes
The “H” is inputted to the pin 37 (VALID)
of IC3004 on the AMP board.
of IC3004 on the AMP board.
The PWM signal is inputted OUT_A line
(pin 6), OUT_B line (pin 8), OUT_C line
(pin 16) and OUT_D line (pin 18) of
IC3001, IC3003, IC3005 and IC3007 on
the AMP board.
(Except OUT_A line (pin 6) and OUT_B
line (pin 8) of IC3001)
(pin 6), OUT_B line (pin 8), OUT_C line
(pin 16) and OUT_D line (pin 18) of
IC3001, IC3003, IC3005 and IC3007 on
the AMP board.
(Except OUT_A line (pin 6) and OUT_B
line (pin 8) of IC3001)
Check that cable is properly connected
to the connector (CN3002, CN3003,
CN3006, CN3007) on the AMP board.
to the connector (CN3002, CN3003,
CN3006, CN3007) on the AMP board.
3. Power is not turned on
Power is not turned on.
The voltage of the following is 28 V.
POWER board: CN902 pin 10 to 12
The voltage of the following is 12 to
18 V.
POWER board: CN902 pin 4 to 6
POWER board: CN902 pin 10 to 12
The voltage of the following is 12 to
18 V.
POWER board: CN902 pin 4 to 6
The voltage of the following is 3.3 V.
MAIN board: IC1002 pin 96, 97
MAIN board: IC1002 pin 96, 97
Yes
POWER board is damaged.
Yes
Yes
Vibrator (X1001) on the MAIN board is
oscillated after AC input.
oscillated after AC input.
Yes
Fuse (F901, F931) on the POWER
board conduct the electricity.
board conduct the electricity.
No
No
No
Replace the complete MAIN board.
The reset signal is inputted to pin 10 of
IC1002 on the MAIN board after AC
input.
IC1002 on the MAIN board after AC
input.
Check the area surrounding IC1004 on
the MAIN board, and replace the
complete MAIN board.
the MAIN board, and replace the
complete MAIN board.
Yes
Yes
No
Replace the complete MAIN board.
No
Replace the fuse (F901, F931) on the
POWER board.
POWER board.
No
Check the capacitor (C1016) and
IC604 on the MAIN board, and replace
the complete MAIN board.
IC604 on the MAIN board, and replace
the complete MAIN board.
The voltage of the following is 3.3 V.
MAIN board: IC604 pin 1
The voltage of the following is 4.0 V.
MAIN board: C1016 plus side
MAIN board: IC604 pin 1
The voltage of the following is 4.0 V.
MAIN board: C1016 plus side
HT-ST5
HT-ST5
35
35
4. The video and audio of HDMI is not outputted
The video and audio of HDMI is not
outputted.
outputted.
The voltage of the following is 5 V.
MAIN board: IC3010 pin 1
MAIN board: IC3010 pin 1
IC3011 pin 4
The voltage of the following is 3.3 V.
MAIN board: IC3006 pin 1
The voltage of the following is 1.0 V.
MAIN board: C3054 plus side
MAIN board: IC3006 pin 1
The voltage of the following is 1.0 V.
MAIN board: C3054 plus side
The voltage of the following is 3.3 V.
MAIN board: IC3009 pin 43 (RESET_N)
Vibrator (X3001) on the MAIN board is
oscillated.
MAIN board: IC3009 pin 43 (RESET_N)
Vibrator (X3001) on the MAIN board is
oscillated.
Yes
Yes
The voltage of the following is 4.9 V.
MAIN board: CN3006
MAIN board: CN3006
pin 19 (HOT PLUG DET)
Yes
Check the area surrounding IC3006,
IC3010 and IC3011 on the MAIN board.
IC3010 and IC3011 on the MAIN board.
No
No
No
Check the HOT PLUG DET line and
mounted state of capacitor (C3064) and
resistor (R3099, R3101, R3102) on the
MAIN board.
mounted state of capacitor (C3064) and
resistor (R3099, R3101, R3102) on the
MAIN board.
No
Check the mounted state of coil (L3009
to L3014) on the MAIN board.
Check the IC3009 on the MAIN board,
and replace the complete MAIN board.
to L3014) on the MAIN board.
Check the IC3009 on the MAIN board,
and replace the complete MAIN board.
The voltage of the following is 3.3 V.
MAIN board: CN3000, CN3001, CN3002
MAIN board: CN3000, CN3001, CN3002
and CN3006 pin 13 (CEC)
Check the diode (D1009) and IC1002
on the MAIN board.
on the MAIN board.
Yes
Yes
No
The voltage of the following (TMDS
input line) is about 3.0 V.
MAIN board: IC3009 pin 6 to 13
(In the case of HDMI IN 1 connection)
MAIN board: IC3009 pin 16 to 23
(In the case of HDMI IN 2 connection)
MAIN board: IC3009 pin 24 to 31
(In the case of HDMI IN 3 connection)
input line) is about 3.0 V.
MAIN board: IC3009 pin 6 to 13
(In the case of HDMI IN 1 connection)
MAIN board: IC3009 pin 16 to 23
(In the case of HDMI IN 2 connection)
MAIN board: IC3009 pin 24 to 31
(In the case of HDMI IN 3 connection)
No
Check the mounted state of jumper
resistor (JC3002, JC3003) and coil
(L3007, L3008) on the MAIN board.
Check the IC3009 on the MAIN board,
and replace the complete MAIN board.
resistor (JC3002, JC3003) and coil
(L3007, L3008) on the MAIN board.
Check the IC3009 on the MAIN board,
and replace the complete MAIN board.
Yes
The voltage of the following (TMDS
output line) is about 3.0 V.
MAIN board: IC3009 pin 77 to 80 and
output line) is about 3.0 V.
MAIN board: IC3009 pin 77 to 80 and
82 to 85
Check the area surrounding RESET line
on the MAIN board.
Check the area surrounding vibrator
(X3001) on the MAIN board.
on the MAIN board.
Check the area surrounding vibrator
(X3001) on the MAIN board.
HT-ST5
HT-ST5
36
36
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM - HDMI Section -
SYSTEM CONTROLLER
IC1002 (1/4)
7
DATA0+
9
DATA0–
4
DATA1+
6
DATA1–
1
DATA2+
3
DATA2–
10
CLOCK+
12
CLOCK–
16
SDA (5V)
15
SCL (5V)
19
HOT PLUG DET
18
+5V POWER
13
CEC
HDMI TRANSCEIVER
IC3009
8
80
79
79
83
82
82
85
84
84
78
77
77
87
67
68
68
69
R0X0+
7 R0X0–
10 R0X1+
9 R0X1–
12 R0X2+
11 R0X2–
11 R0X2–
6 R0XC+
5 R0XC–
5 R0XC–
46 DSDA0
47 DSCL0
47 DSCL0
48 CBUS_HPD0
49 R0PWR5V
TX0+
TX0–
TX0–
TX1+
TX1–
TX1–
TX2+
TX2–
TX2–
TXC+
TXC–
TXC–
TXDSDA
TXDSCL
TX_HPD
ARCRX_TX
7
DATA0+
9
DATA0–
4
DATA1+
6
DATA1–
1
DATA2+
3
DATA2–
10
CLOCK+
12
CLOCK–
16
SDA (5V)
15
SCL (5V)
19
HOT PLUG DET
14
REVERSE (NC)
13
CEC
CN3006
HDMI OUT
TV
ARC
54
CSDA
7
DATA0+
9
DATA0–
4
DATA1+
6
DATA1–
1
DATA2+
3
DATA2–
10
CLOCK+
12
CLOCK–
16
SDA (5V)
15
SCL (5V)
19
HOT PLUG DET
18
+5V POWER
13
CEC
19 R1X0+
18 R1X0–
18 R1X0–
21 R1X1+
20 R1X1–
20 R1X1–
23 R1X2+
22 R1X2–
22 R1X2–
17 R1XC+
16 R1XC–
16 R1XC–
55 DSDA1
56 DSCL1
56 DSCL1
57 CBUS_HPD1
58 R1PWR5V
7
DATA0+
9
DATA0–
4
DATA1+
6
DATA1–
1
DATA2+
3
DATA2–
10
CLOCK+
12
CLOCK–
16
SDA (5V)
15
SCL (5V)
19
HOT PLUG DET
18
+5V POWER
13
CEC
CN3002
3
CN3001
2
CN3000
1
27 R2X0+
45 HDMI_SDA
53
CSCL
46 HDMI_SCL
45
INT
56 HDMI_INT
42
RESET_N
54 HDMI_RST
15 CEC_I/O
26 R2X0–
29 R2X1+
28 R2X1–
28 R2X1–
30 R2X2+
31 R2X2–
31 R2X2–
25 R2XC+
24 R2XC–
24 R2XC–
59 DSDA2
60 DSCL2
60 DSCL2
61 CBUS_HPD2
62 R2PWR5V
SD0_0_DL0 90
SD0_1_DR1_GPIO1 92
SD0_2_DL1_GPIO2 93
SD0_3_DR2_GPIO3 94
SPDIFOUT_DL2 96
MCLK 91
WS0_OUT_DR0_GPIO7 88
SCK0_DCK 89
MUTEOUT_GPIO4 95
HDMI_D1
HDMI_D0
HDMI_D2
HDMI_D3
HDMI_D3
SP_SPDIF
HDMI_MCK
HDMI_BCK
HDMI_LRCK
RX_MUTE
HDMI_D0 – HDMI_D3, SP_SPDIF, HDMI_MCK,
HDMI_BCK, HDMI_LRCK, RX_MUTE
>001B
Q1004
: VIDEO
: AUDIO (DIGITAL)
SIGNAL PATH
XTALOUT 73
XTALIN 74
X3001
27MHz
HDMI IN
(Page 37)
Click on the first or last page to see other HT-ST5 service manuals if exist.