Sony AVD-K150B / AVD-K150E / AVD-K150G / AVD-K150N / AVD-K150R / DAV-D150B / DAV-D150E / DAV-D150G / DAV-D150N Service Manual ▷ View online
29
AVD-K150B/K150E/K150G/K150N/K150R
(C)
Hi-Fi REC.
It is impossible to record Hi-Fi Audio
signal.
signal.
Check Vcc of IC801.(Pins34, 40)
YES
YES
Check IC801 Pin42(Data), Pin43(CLOCK).
YES
Do Audio signals appear at IC801
Pins16, 17?
Pins16, 17?
YES
Do FM Audio signals appear at IC801
Pin36?
Pin36?
YES
Check the Contact Point of Drum
Connector if good then Replace the Drum.
Connector if good then Replace the Drum.
YES
Check Power 5V, 12VT.
NO
Check ports of
µ
-COM.
Check Audio input signal of IC801
Pins2, 3(TU.A.), 4, 5(DVD.A.),
6, 7(AVI.A.), 8, 9(AV2.A.), 10, 11(AV3.A.).
Pins2, 3(TU.A.), 4, 5(DVD.A.),
6, 7(AVI.A.), 8, 9(AV2.A.), 10, 11(AV3.A.).
NO
Replace IC801.
NO
NO
30
AVD-K150B/K150E/K150G/K150N/K150R
6. Tuner/IF CIRCUIT
(A) No Picture on the TV screen
No picture on the TV
screen
screen
Does the Video signal at
the TU701 Pin24.
the TU701 Pin24.
YES
YES
YES
Is +33V applied to TU701
Pin16?
Pin16?
YES
Is +5V applied to TU701
Pin13?
Pin13?
NO
Does Sync appear at
IC501 Pin111.
IC501 Pin111.
NO
Does the Video signal at
the IC501 Pin19.
the IC501 Pin19.
YES
NO
Does the Video signal at
the IC301 Pin61.
the IC301 Pin61.
YES
NO
NO
Does the Video signal at
the IC802 Pin30.
the IC802 Pin30.
Check the signal flow from IC802
Pin30 to SC901 Pin19.
Pin30 to SC901 Pin19.
YES
Check 33V line.
NO
Check 5V line.
NO
YES
Does the Clock signal
appear at TU701 Pin11?
appear at TU701 Pin11?
Check the lIC Clock Signal
of
of
µ
-COM Pin59.
NO
YES
Does the data signal
appear at TU701 Pin12?
appear at TU701 Pin12?
Replace Tuner.
Check the signal flow from
TU701 Pin24 to IC301 Pin48.
TU701 Pin24 to IC301 Pin48.
Check the signal from IC301
Pin65 to IC501 Pin17.
Pin65 to IC501 Pin17.
Check the signal from IC501
Pin19 to IC301 Pin56.
Pin19 to IC301 Pin56.
Check the signal from IC501
Pin61 to IC802 Pin1.
Pin61 to IC802 Pin1.
Check the lIC Data Signal
of
of
µ
-COM Pin60.
NO
31
AVD-K150B/K150E/K150G/K150N/K150R
(B) No Sound
No Sound.
Check the Vcc of IC751 Pins1, 11, 19,
22, 33.
22, 33.
YES
Check 5.2V Line.
NO
Check the Tuner SiF signal at IC751
Pin2.
Pin2.
YES
Check the oscillator of IC751 Pins5, 6.
YES
Check the Audio of IC751 Pins30, 31.
YES
Check the Audio of IC801 Pins2, 3.
YES
Check the Audio of IC801 Pins16, 17.
YES
Check the Audio of IC802 Pins22, 26.
YES
Check the Signal flow from IC802
Pins22, 26, SC901 Pins1, 3.
Pins22, 26, SC901 Pins1, 3.
YES
Check the Tuner SIF of TU701 Pin22.
NO
Replace X751
NO
Check the IIC Clock and Data at IC751
Pins12, 13.
Pins12, 13.
NO
Check the signal flow from IC751
Pins30, 31 to IC801 Pins2, 3.
Pins30, 31 to IC801 Pins2, 3.
NO
Check the IIC Clock and Data at IC801
Pins42, 43.
Pins42, 43.
NO
Check the signal flow from IC801
Pins16, 17 to IC802 Pins10, 16.
Pins16, 17 to IC802 Pins10, 16.
NO
32
AVD-K150B/K150E/K150G/K150N/K150R
3-3. DVD & AMP SECTION ELECTRICAL TROUBLESHOOTING GUIDE
1. System operation flow
Power On
No
Yes
Yes
Yes
No
No
No
Show LOGO
Tray Closed?
Tray Close to Closed position
SLED Moves to Inner Position
Recieve
OPEN/ CLOSE
Key?
Receive
CLOSE Key?
1. Stop Playback & Open Tray
2. Display tray open message & LOGO
2. Display tray open message & LOGO
1. Execute Pressed Key & IR Key
2. Systemoperati on Routi ne Loop
2. Systemoperati on Routi ne Loop
1. Judge whether have disc and disc type
2. Jump to related disc reading procedure
2. Jump to related disc reading procedure
SLED at Inner
Side?
1. 8032 initializes SERVO, DSP & RISC registers
2. Write RISC code to SDRAM
3. Reset RISC
2. Write RISC code to SDRAM
3. Reset RISC
Click on the first or last page to see other AVD-K150B / AVD-K150E / AVD-K150G / AVD-K150N / AVD-K150R / DAV-D150B / DAV-D150E / DAV-D150G / DAV-D150N service manuals if exist.