DOWNLOAD Panasonic SA-VK650EE Service Manual ↓ Size: 25.01 MB | Pages: 127 in PDF or view online for FREE

Model
SA-VK650EE
Pages
127
Size
25.01 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / DVD STEREO SYSTEM
File
sa-vk650ee.pdf
Date
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Panasonic SA-VK650EE Service Manual ▷ View online

21 Basic Troubleshooting Guide
21.1. Basic Troubleshooting Guide for Traverse Unit (DVD Module P.C.B.)
Problems
Checking Points
Checking Components
1) Distorted
picture
or
abnormal sound is heard
during initialisation
a) Check SDRAM address, data bus, CLK and other
control signals waveform.
b) Check video signals.
c) Check audio DAC circuitry.
* Compare the above with OK condition Module.
IC8051
LB8301,R8321, R8322, LB8302, R8325, R8326
IC8420
*
Check
for
solder
short
and/or
component
missing/damaged.
2) No TOC/Long TOC
a) Check motor driver circuitry (voltages).
b) Check laser drive circuitry (volrtages and current).
c) Check LSI connection to motor drive circuitry.
* Compare the above with OK condition Module.
IC8251
Q8550,Q8551,Q8552,Q8561,Q8562
IC8001
*
Check
for
solder
short
and/or
component
missing/damaged.
3) Disc not spinning
4) Traverse not moving
5) Traverse and spindle
abnormal movement
a) Check connection from Backend Module to Traverse
unit.
b) Check motor driver circuitry on voltages and control
signals.
* Compare the above with OK condition Module.
FP8201
IC8251
*
Check
for
solder
short
and/or
component
missing/damaged.
6) Cannot read disc but
spindle is spinning
- Cannot read CD
- Cannot read DVD
a) Check laser drive circuitry (voltages and current)
- Check CD laser drive
- Check DVD laser drive
* Check voltages and LD current and compare with
OK Module.
Q8550,Q8551,Q8552,Q8560,Q8561,Q8562
Q8550,Q8560,Q8561,Q8562
Q8550,Q8551,Q8552,Q8560
*Check
for
solder
short
and/or
component
missing/damaged.
7) Block noise during play a) Check SDRAM address and data bus signal.
* Compare the above with OK condition Module.
IC8051
* Check for solder short and/or component damaged.
8) Jitter of out specification a) Check LD current
b) Check OPU (change to other unit and confirm)
OPU unit (FFC connection)
109
SA-VK650EE
22 Illustration of ICs, Transistors and Diodes
AN7348S-E1 (24P)
C0ABBB000230(8P)
C0FBBK000049 (16P)
C1BB00000732 (32P)
C1BB00000962(24P)
C1CB00001937 (20P)
C0CBCBD000018 (8P)
C0JBAB000011(14P)
C0EBA0000029 (4P)
C3ABPG000145 (54P)
C9ZB00000498 (16P)
B0AACK000004
MA2J72800L
C0HBBB0000057 (44P)
C1BB00001012 (80P)
C2CBYY000267 (100P)
MN2DS0009VP (256P)
1
4
8
5
C0AABA000009
C0DAAMH00012
2SB0621AHA
C1AA00000612
C0DBEHG00006
3
1
1 2
4
3
2
4
CNB13030R2AU
C0GBG0000048
C0EBE0000455
C0JBAA000346
B1AAKD000014
B1AARC000003
B1ACKD000006
B1GCCFJJ0016
B1AAGC000007
B1AAAC000016
B1AAAD000015
B1GACFJJ0018
B0ADCJ000020
1
1
1
5
1
18
14
1
28
15
7
21
22
8
B0BA01100004
B0BA01500003
B0BA01900005
B0BA02300017
B0BA02600018
B0BA03000020
B0BA5R100013
B0BA5R700008
B0BA6R800008
B0BA9R600002
A
Ca
Cathode
Anode
B3AAA0000803
Ca
A
Cathode
Anode
A
Ca
Cathode
Anode
B0EAKM000117
B0EAKM000122
B0EAMM000038
B1AACF000064
B1BACD000018
B1BCCD000019
E
C
B
B
C
E
B0CDBB000015
B0CBAD000004
B0BC2R4A0006
B0BC5R600003
B0BC5R000009
B0BC7R500001
B0JCPD000025
Cathode
Ca
A
A
Anode
G
S
D
E
C
B
B1AABC000003
E
C
B
B1BCCG000023
B1DEGM000026
B
C
E
B0ACCK000005
B1ACCF000094
B1CECC000003
1
5
1
3
4
5
2
2SB0709AHL
2SD1819A0L
B1ABCF000176
B1ABEB000002
B1ADCF000001
B1ADCF000063
B1ADGB000008
B1GBCFJA0028
B1GBCFJN0033
B1GBCFJJ0051
B1GDCFNA0001
B1GDCFJJ0047
UNR521100L
UNR511V00L
Ca
Cathode
Anode
A
B0ACEL000004
B0BC4R300002
B0ACCE000003
MA2J11100L
Cathode
Anode
Ca
A
C1BA00000407
1
24
25
48
RFKWMHA0H160(48P)
B
C
E
E
C
B
C
B
E
B1BACG000048
B0BC8R100004
Ca
Cathode
Anode
C0ABBB000244 (8P)
1
4
8
5
Cathode
Cathode
Anode
B0ADCC000002
XP0621400L
1
2
3
4
5
6
A
Ca
Cathode
Anode
MA2C16500E
B3AEA0000083
Ca
A
Cathode
Anode
110
SA-VK650EE
23.1. IC2801 (C2CBYY000267 )
System Microprocessor
Pin No.
Mark
I/O
Function
1
LM_L
I
Level Meter Left
2
N.C.
-
No Connection
3
PLLCE
O
PLL Chip Select
4
WIDE1
O
S.VIDEO output control
5
DVD_PCONT
O
Power control pin for DVD
module
6
DVD_MUTE
I
Signal from DVD module
control mute circuit
7
F_HOP
O
F_Hop for Digital Amplifier
8
BYTE
-
External Data Bus Width
Select Input
(Connect to Ground)
9
CNVss/EFP_CNVss
-
Flash Mode Terminal
(Connected to Ground)
10
XC_IN
-
32.768 kHz Sub Clock
11
XC_OUT
-
32.768 kHz Sub Clock
12
RESET/EFP_RESET
-
Reset Input
(ACTIVE L)
13
XOUT
-
10 MHz Main Clock
14
VSS
-
Ground (0V)
15
XIN
-
10 MHz Main Clock
16
VCC
-
Power Supply (+5V)
17
NMI
-
Connect to VCC (+5V)
18
RMT
I
Remote Control Input
19
N.C.
-
No Connection
20
SYNC
I
AC Failure Detect Input
21
ST/DO
I
Tuner IF Data/Stereo Input
22
SD
I
Tuner Signal Detect Input
23
KA_CS
-
No Connection
24
KA_CLK
-
No Connection
25
KA_DAT
-
No Connection
26
ASP_DAT
O
ASP DATA
27
ASP_CLK
O
ASP CLOCK
28
N.C.
-
No Connection
29
PLL_DAT
O
PLL DATA
30
PLL_CLK
O
PLL CLK
31
REG 1
I
REGION SETTING 1
(Tuner)
32
REG 2
I
REGION SETTING 2
(Tuner)
33
REG 3
I
REGION SETTING 3
(Tuner)
34
REG 4
I
REGION SETTING 4
(Tuner)
35
DVD_CMD
O
CMD signal for the DVD
Module
36
DVD_STA
I
STATUS signal from the
DVD Module
37
DVD_CLK
I
CLOCK signal for the DVD
Module
38
MODEL_SLCT
I
MODEL SELECT (Active
Low)
39
MOD_DA
O
Digital Amplifier Muting
40
MUTE_A
O
Audio Mute
41
EE_CS/EFP/EPM
O
EEPROM Chip Select
42
EE_CLK
O/I EEPROM CLOCK
43
EE_DATA
O/I EEPROM DATA
44
SW_LVL1
-
Subwoofer Level 1
45
SW_LVL2
-
Subwoofer Level 2
46
PCONT/EFP_CE
O
Main Transformer Control
Output
47
DC_DET
I
DC Detect Input
48
LED_CTRL1
-
No Connection
Pin No.
Mark
I/O
Function
49
LED_CTRL2
-
No Connection
50
MIC_LVL1
-
No Connection
51
MIC_LVL2
-
No Connection
52
HALF_1
I
DECK 1 HALF PLAYBACK
INPUT
53
MODE_1
I
DECK 1 MODE PLAYBACK
INPUT
54
MUTE_FHOP
-
No Connection
55
N.C.
-
No Connection
56
PLG_1
O
DECK 1 Plunger Control
57
PLG_2
O
DECK 2 Plunger Control
58
MTR
O
DECK motor control (“L” for
Motor ON)
59
REC
O
L when record circuit is
operating
60
DECK1_H
O
H when DECK 1 P/B head
is selected
61
N.C.
-
No Connection
62
Vcc
-
Power Supply (+5V)
63
N.C.
-
No Connection
64
Vss
-
Ground (0V)
65
N.C.
-
No Connection
66
N.C.
-
No Connection
67
V_JOG_A
I
Volume Jog A
68
V_JOG_B
I
Volume Jog B
69
ECHO_1
O
No Connection
70
ECHO_2
O
No Connection
71
FL reset
-
No Connection
72
FL_CS
O
FL Driver Chip Select
73
FL_DATA
O
Serial Data To FL Driver
74
FL_CLK
O
Serial Clock To FL Driver
75
ECHO_3
O
No Connection
76
ECHO_Mute
O
Echo Muting
77
N.C.
-
No Connection
78
ST_SW
I
Stock Switch of CRS1
79
MOT_CCW
O
CRS1 motor CCW
80
MOT_CW
O
CRS1 motor CW
81
HOME_SW
I
Home Switch for CRS1
82
CAM_SENSOR
I
Close Switch for CRS1
83
PLUNGER
O
Plunger for CRS1
84
BOTTOM_SW
I
Bottom Switch for CRS1
85
PLAY_SW
I
Play Switch for CRS1
86
UD_SENSOR
I
UD Sensor for CRS1
87
OPEN_SW
I
Open Switch for CRS1
88
N.C.
-
No Connection
89
DVD_REG
AD
IN
DVD Region setting
90
N.C.
-
No Connection
91
DECK2
AD
IN
Deck Condition Input 2(
R_INHF/MODE2/HALF2)
92-94
KEY3-KEY1
AD
IN
KEY 3 to KEY 1 INPUT
95
PHOTO_2
AD
IN
Rotation Detection Signal
(DECK2)
96
AVss
-
Analog Power Supply Input
(Connect to GND)
97
PHOTO_1
AD
IN
Rotation Detection Signal
(DECK 1)
98
VREF
-
Reference for A-D (+5V)
99
AVcc
-
Analog Power Supply Input
100
N.C.
-
No Connection
23 Terminal Function of IC
111
SA-VK650EE
112
SA-VK650EE
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