Es gelten die Vorschriften und Sicherheitshinweise
gemäß dem Service Manual „Sicherheit“, Materialnum-
S
mer 720108000001, sowie zusätzlich die eventuell
abweichenden, landesspezifischen Vorschriften!
Sicherheit
Safety
Materialnr./Part No.
720108000001
Dieses Service Dokument ist nur in Datenform verfügbar
This Service Document is only available as data
Materialnummer / Part Number 720130000300
Änderungen vorbehalten/Subject to alteration
Made by GRUNDIG in Germany • TCC 0207 HH
http://www.grundig.com
The regulations and safety instructions shall be valid
as provided by the „Safety“ Service Manual, part
S
number 720108000001, as well as the respective
national deviations.
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REPLACEMENT OF MEMORY IC
MEMORY IC.
This TV uses memory IC. In the memory IC are memorized data for correctly operating the video and deflection
circuits.
PROCEDURE FOR REPLACING MEMORY IC
- Power off
Switch the power off and unplug the power cord from AC outlet.
- Replace IC
Be sure to use memory IC written with the initial data values.
- Power On
Plug the power cord into the AC outlet and switch the power on.
Check and set SYSTEM default value:
- Press “MENU” x3+1752 buttons in sequence to enter into factory status.
- If the memory IC haven’t been written with the initial data, press [P+] / [P-] to select item INIT and press [V+] / [V-] to start initialize memory IC.
- Check the setting value of the SYSTEM default value of Table below. If the value is different, select items by [P+] / [P-] keys and set value by [V+] /
[V-] keys.
- Press “TV/AV” button to return to the normal screen.
SERVICE ADJUSTMENT
Specific operation: use remote controller
Press “MENU” x3+1752” buttons in sequence to enter into factory mode.
Press [P+] / [P-] to select items and press [V+] / [V-] key, to make data adjustment of corresponding factory
menus.
Press “AV/TV” key to exit factory mode.
Focus adjustment
- Receive a crosshatch signal.
- While watching the screen, adjust the FOCUS VR on the FBT to make the vertical and horizontal lines as fine and sharp as possible.
Geometrical adjustment
Receive PAL standard complete pattern signal.
Adjustment steps:
- Adjust VSL, to the centre horizontal line just appears from half bottom shadow.
- Adjust VAM, to get 92% of vertical picture contents would be displayed on CRT.
- Adjust VSH, the centre horizontal line corresponds to CRT vertical centre.
- Adjust SCL, to the linearity of P card field is in proper condition.
- Adjust HSH, to get the picture horizontal centre correspond to CRT horizontal centre.
Receive NTSC signal and repeat above adjustment.
AGC Adjustment
Receive 60dBμ (1mV) VH colour bar pattern signal.
Select TOP item.
Adjust value, to noise reduce gradually and just disappeared point.
CRT cut off and white balance adjustment
a) CRT cut off adjustment
- Select item VG2B, then adjust value to 32.
- PRESS “0” key, when the screen shows”VG2” adjust the SCREEN control on Fly back transformer to make the screen show alternating flashing
characters of “INSIDE HIGH INSIDE LOW”.
b) White balance adjustment
- Receive a Black and White pattern.
- Adjust WRP, WRG, WRB items to get colour temperature 9300K ±3 JND.
WPG31AWhite Point G
WPB31AWhite Point B
RED32ABlack level offset R
RGN32ABlack level offset G
YDFP8AY-Delay for PAL
TTBR10ATELETEXT brightness
ODBR10AOSD brightness
MDEL30ABoot-strap time-lapse
MUTE
INIC16AEEPROM
FILT2ATDA9874initialization
NGANANICAM frequency out
pressure
NMNGADTA-9874 M frequency
out pressure
FGANADTA-9874FMfrequency
out pressure
DVDB240ADVD blackelectrify
time
CORIACORING enactment
THDO4ATELETEXTcathode
ray tubes
AGC27AIF AGC speed
AGCL27ASCEAM L IF AGC
BRI04AListen Brightness
COL03AListen Color
SHP00AListen Sharpness
CO3270AContrast 50
BR3240ABrightness 50
CL32240ASaturation 0
SH3260ADefinition 50
CONF100AContrast 100
BRIF100ABrightness 100
SHPF100AListen Sharpness
RGBL8Aboot-strap wait for time
ONMT1FAboot-strap black time
“6”LCOL3Afactory standard color
SIZE3Afactory standard size
ICON5ASoft CONtrast
ITEM0AMENUcharacter diploid
highness
TXMI40A
TELETEXT X location
5TYM38A
TELETEXT Y location
NOTE: THE ITEMS WITH REMARK “A” IS ADJUSTABLE DATA.
Optional data
1. OP1
BitFunctionDescriptionPresetRemark
Bit 0AV21=Enable1EA
Bit 1AV31=Enable0EA
Bit 2YPRPB1=Enable0EA
Bit 3SVHS1=Enable0EA
Bit 4DVD1=Enable1EA
Bit 5YUV1=Enable0EA
Bit 6VG2_MODE
1=Enable(0=Back current detect 1=Horizontal line)
0EA
Bit 7BAND1=Enable0EA
2.OP2
BitFunctionDescriptionPresetRemark
Bit 0AVL1=Enable0EA
Bit 1AUTO_SOUND1=Enable0EA
Bit 2EUROUP_SET1=Enable1EA
Bit 3CYRILLIC_SET1=Enable0EA
Bit 4FARSI_SET1=Enable0EA
Bit 5ARABIC_SET1=Enable0EA
Bit 6SOY1=Enable1EA
Bit 7DVB-T1=Enable0EA
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3.OP3
BitFunctionDescriptionPresetRemark
Bit 0COLOR-AUTO1=Enable1EA
Bit 1COLOR-PAL1=Enable1EA
Bit 2COLOR-NTSC1=Enable1EA
Bit 3COLOR-N4.431=Enable1EA
Bit 4COLOR-SECAM1=Enable0EA
Bit 5COLOR-PAL3581=Enable1EA
Bit 6NOISE REDUCE1=Enable1EA
Bit 7BLACK-STRETCH1=Enable0EA
4.OP4
BitFunctionDescriptionPresetRemark
Bit 0FMWS1=Enable1AE
Bit 1DIRECT_SWITCH-ON1=Enable
0(X-radial
safeguard)
AE
Bit 2WOOFER1=Enable0EA
Bit 3LOGO1=Enable1EA
Bit 4CHANNEL_IN_SCART 1=Enable1EA
Bit 5IDENT_SENSITIVE1=Enable0EA
Bit 6HALFTONE1=Enable0EA
Bit 7ZOOM1=Enable0 1=Enable
RC ZOOM
EA
5.OP5
BitFunctionDescriptionPresetRemark
Bit 0SOUND_DK1= Enable1EA
Bit 1SOUND_BG1= Enable1EA
Bit 2SOUND_I1=Enable1EA
Bit 3SOUND_L1=Enable0EA
Bit 4SOUND_M1= Enable0EA
Bit 5SEARCH_SOUND_SYS_OSD 1= Enable0EA
Bit 6
STANDBYPIN
1=Enable
1(1=High
ON 0=
)
EA
Bit 7STORE_AV1=Enable1EA
6.OP6
BitFunctionDescriptionnPresetRemark
Bit 0MENU_BLUE1=Enable1EA
Bit 1BLUE_SCREEN1=Enable1EA
Bit 2CALENDAR1=Enable1EA
Bit 3CHILDLOCK1=Enable1EA
Bit 4TELETEXT_COLOUR_KEY1=Enable1EA
Bit 5HOTEL_MODE1=Enable1EA
Bit 6POR_WHEN_BLUE1=Enable0EA
Bit 7GAME1=Enable1EA
7.OP7
BitFunctionDescriptionPresetRemark
Bit 0SERVICE_KEY1=Enable0EA
Low OFF
Bit 1PROG_SET_ENABLE1=Enable0EA
Bit 2SVO1=Enable1EA
Bit 3TV_RC1=Enable0EA
Bit 4POWER_ALWAYS_ON1=Enable1EA
Bit 5PAL_PEAK_CENTRE01=Enable1EA
Bit 6PAL_PEAK_CENTRRE1 1=Enable1EA
Bit 7TIME1=Enable1EA
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8.OP8
BitFunctionDescriptionPresetRemark
Bit 0FARSI1=Enable1EA
Bit 1ARABIC1=Enable1EA
Bit 2TURKISH1=Enable1EA
Bit 3KEY7_DVD1=Enable0EA
Bit 4MONO1=Enable0(POWER
KEY,)1=TV/DVD
KEY
EA
Bit 5LOGO_CHANGE_CILOUR 1=Enable1EA
Bit 6DISABLE TELETEXT TOP
MODE
1=Enable1EA
Bit 7+6DB1=Enable0EA
9 OP9
BitFunctionDescriptionPresetRemark
Bit 0ENGLISH1=Enable1EA
Bit 1FRANCE1=Enable1EA
Bit 2GERMANY1=Enable1EA
Bit 3ITALY1=Enable1EA
Bit 4RUSSIA1=Enable1EA
Bit 5SPANISH1=Enable1EA
Bit 6PORTUGUESE1=Enable1EA
Bit 7DUTCH1=Enable1EA
Note Don’t adjust any OPTION items, please inform the engineer about any change.
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PH2LF16Phase-2 filter
PH1LF17Phase-1 filter
GND318Ground 3 for TV-processor
DECBG19Band gap decoupling
AVL20Automatic volume levelling
VDIVERB21Vertical drive B output
VDIVERA22Vertical drive A output
IFIN123IF input 1
IFIN224IF input 2
IREF25Reference current input
VSC26Vertical sawtooth capacitor
RF AGC27Tuner AGC output
SIF 128Audio deemphasize or SIF input
SIF 2 29Decoupling sound demodulator
GND230Ground 2 for TV processor
SIF AGC31Narrow band PLL filter
AV SWITCH32Avswitch
H DIR VER33Horizontal output
FBT34Flyback input/sandcastle output
AMIN35AM input
EHT36EHT/over voltage protection input
PLL IF37IF-PLL loop filter
VIDEO OUT38IF video output / selected CVBS output
8V398v
V IN40internal CVBS input
GND41ground for TV processor
CVBS/Y42CVBS/SVHS(Y) input
C IN43SVHS (C) input
AUDIO44Audio output
INSW245YUV insertion input
S.R46R input / V (R-Y) input / PR input
S.G47G input / Y input
S.B48B input / U (B-Y) input / PB input
BCL49Beam current limiter input
BLKI50Black current input
RO51Red output
GO52Green output
BO53Blue output
VDDA54Analog supply of Closed Caption decoder and digital supply of TV-processor (3.3 V)
VPE55Ground
VDDC56Digital supply to core (3.3 V)
OSCGND57Oscillator ground supply
XTALIN58Crystal oscillator input
XTALOUT59Crystal oscillator output
RESET60Ground
VCC61Digital supply to periphery (+3.3 V)
AV/TV62AV1 / AV2 mode Output.
SCARTIN/DVD
TRIGGER
63SCARTINPUT/DVDmode Output.
REMOTE64Remote control signal input.
Note
PinTVSVHSAV1AV2
621001
631100
ICs functional description
IC101:TDA9351
SYMBOLPINDESCRIPTION
STANDBY1In STAND BY mode, low level (Power OFF).
For Power ON this pin will be high.
SCL2I2C-bus clock line
SDA3I2C-bus data line
VT4TUNER voltage
SYSTEM5TV system control
KEY IN6Control keys input
B1AND0(VOL)7Sound Volume control PWM output
VOL08Sound mute output
GND9Digit ground for µ-controller core and periphery
DVD POWER10DVD power control
BAND111STANDBY control
VSSA12Analog ground of digital ground of TV-processor
SEC PLL13Internally connected
VCC142nd supply voltage TV-processor(+8V)
DECDIG15decoupling digital supply of TV-processor
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TV sound AM -demodulator and audio source switch (TDA9830)
SymbolPIN FunctionSymbolPINFunction
IFIN
1
sound IF differential input signalEXTIN
9
input signal (from external) to audio switch
n.c.
2
not connectedSWITCH
10
switch input select control
C
AGC
3
AGC capacitor
Vp2
11
supply voltage +12 V (alternative)
C
REF
4
REF voltage filtering capacitorMUTE
12
mute control
n.c.
5
not connected
GND
13
ground (0 V)
AMOUT
6
AM demodulator outputVp1
14
supply voltage +5 to +8 V
AMIN
7
input signal (from AM) to audio switch n.c.
15
not connected
AFOUT
8
output signal from audio switch
IFIN
16
sound IF differential input signal
Vertical deflection booster (TDA4863AJ)
SymbolPIN FunctionSymbolPIN Function
VP11positive supply voltage 1V-OUT5
vertical output
VP32
flyback generator outputINN
6
inverted input of differential input stage
VP23
supply voltage 2 for vertical outputINP
7
non-inverted input of differential input stage
GND4
ground or negative supply voltage
Tuner
PINFunctionPINFunction
1AGC7+5V
2vacant8vacant
3Gnd9Vt 33V
4SCL10Gnd
5SDA11IF Out
6+5V
IC102 24C08B/PCF0539
PINFunction
1GND
2GND
3Upper resistance
4GND
5SDA data wire
6SCL clock wire
7GND
8+5V Power
K 15 PFCD 2602 Txt
Page 15
V03.83.63.33.54.45.11.800.18 0.1702.3853
PIN17181920212223242526272829303132
V4040.50.70.81.91.93.93.81.63.22.302.30.2
PIN33343536373839404142434445464748
V0.50.301.72.43.483.903.303.61.42.52.52.5
PIN49505152535455565758596061626364
V1.95.02.42.42.43.103.201.81.703.25.13.35
TDA4863AJ
PIN1234567
1310.513.100.220.20.2
TDA9830
PIN12345678910111213141516
1.7502.32 4.3702.22.22.32.20123801.75
24C08B/PCF0539
PIN12345678
V005.103.2005.1
IC voltages
TDA9351
PIN12345678910111213141516
Test point Waveforms
5Vpp
0.9Vpp
1.3Vpp
H
H
1Vpp
V
CRT KB
CRT KGCRT KR
95Vpp
95Vpp
95Vpp
H
H H
TDA9351PIN53
2.5Vpp
2.5Vpp
3.8Vpp
H H
H
TDA9351 PIN52TDA9351 PIN51
TDA9351 PIN33TDA9351 PIN34
0.8Vpp
V
TDA9351 PIN21TDA9351 PIN22TDA9351 PIN59
1.2Vpp
2.6Vpp
H
H
TDA9351 PIN40
TDA9351 PIN38
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Page 16
DVD Part: Introduction of MTK1389D maintenance
NOTE:
MTK1389D is a type of LSIC for DVD decode .MTK1389D IC consists of RF,SERVO,DSP,DECODE,VIDEO DAC and AUDIO DAC.
1. Under normal power supply conditions, the maintenance plan for MT1389D mono-chip is: first the reset circuit resets the MT1389D, after the crystal
oscillator circuit gave the clock signal to MT1389D, MT1389D will start the initialization check for Flash:E2PROM:SDRAM, after everything is checked
to be normal, it will start initialization check for built-in Audio DAC, servo and motor Driver IC .
2. If the all the a.m. parts are good, then MT1389D will send signal to motor Driver to drive the servo system:pick up then to generate DVD light for col
lection, tracing the main shaft to check if there is any disc, and confirm if it is CD format or DVD format disc. If the disc is in DVD format, the system
will read the data from the disc directly; if it is in CD format built-in servo will drive the CD laser to send out CD light and read the data, the data then
will be amplified through built-in RF amplifier and sent to MT1389D decode part for data processing, released by MPEG and resolved into video data
and audio data, then they will be returned to analog signals through built-in VIDEO DAC:AUDIO DAC.
Decoder section
3. There is power supply, clock and reset, but the system does not work.
- Check if all the address wires required for FLASH are exist, and if they are in normal status, especially check if the A0~A15 of FLASH have normal
signals, if there aren’t, then inspect MT1389D to see if there is faulty soldering. If there are normal signals at A0~A15, check if the address data
signal of MT1389D and SDRAM is normal. If it is normal, then check the signal at A16~A19 of MT1389D; if there are also signals, then check the
video output wires and AV filter circuit; if there is no signal, then check the corresponding pins of MT1389D to see if there is any short circuit, break
or faulty soldering.
4. System in normal operation, but the audio has no sound.
- Because the AUDIO DAC is built in MTK1389D IC.you need to check the lower passing amplifying circuit and the MUTE circuit at the back of the
LPF circuit. Also check if there is any power supply to the LPF circuit.
- Check if the power supply voltage required for playing is at normal level.
Servo Section
5. After the LOGO of the machine shows normally, there is no OSD display. This problem mainly is caused by the abnormality built-in RF and servo,
possible problems may be:
- Built in RF and its surrounding circuits have problems.
- Servo part of MT1389D has problems.
6. OSD display is normal:while there is no action of servo part:feeding motor does not work, main shaft does no turn, possible fault status are:
- The corresponding signals giving by MT1389D to DMSO:FMSO are missing, the reason may be the problem of MT1389D or the communication
between MT1389D and motor Driver IC SA5668.
- Not output from Motor Driver, the reason may be the problem on motor Driver or its corresponding circuit.
7. Servo part in good status, while there is no pick up action:no light, no focus:
- No light, check the power supply:power supply for pick up:, or the light producing driving circuit to see if they are in normal status.
- No focus, check MT1389D to see if there is signal output from FOSO:TRSO. Secondly, check motor driver to see if there is F+:F-:T+:T-signal output.
Thirdly, check the external corresponding circuit of the motor driver to see if there is any problem.
8. All the servo part has action, while it cannot read out the disc
- Check MT1389D if there is RF net picture output, if there isn’t, then it must be the problem of MT1389D and external surrounding circuits, it there is
output, then it might the problem of MT1389D and its surrounding circuits.
- There is RF signal:but not in normal status:then check MT1389D and surrounding circuits.
- Everything is normal, but the disc cannot be read out, check MT1389D and its surrounding circuit
-
K 15 PFCD 2602 Txt
Page 17
Ersatzteilliste
ǵ
Spare Parts List
10 / 2006
POS. NR. ABB.MATERIAL-NR. ANZ.BEZEICHNUNGDESCRIPTION
POS. NO. FIG.PART NUMBER QTY.
GML2300K 15 PFCD 2602 TXTK 15 PFCD 2602 TXT
0001.000759551296400GEH.-VORDERTEILFRONT CABINET
0002.000759551297300RUECKWANDBACK COVER
0003.000759551296200KLAPPE DVDFLAP DVD
0007.000759551297600LAUTSPRECHER 8 OHM 8 WLOUDSPEAKER 8 OHM 8 W
720117233500BEDIENUNGSANLEITUNG GB, FINSTRUCTION MANUAL GB, F
720130000300SERVICE DOCUMENT D/GBSERVICE DOCUMENT D/GBP
720108000001SICHERHEITSMANUAL D/GB/E/F/ISAFETY SERVICE MANUAL D/GB/E/F/I
X = SIEHE GESONDERTE E-LISTEX = SEE SEPARATE PARTS LIST
Es gelten die Vorschriften und Sicherheitshinweise
gemäß dem Service Manual "Sicherheit", Mat.-Nummer 720108000001, sowie zusätzlich die eventuell abweichenden, landesspezifischen Vorschriften!
GRUNDIG ServiceE - 1
( ! )
The regulations and safety instructions shall be valid
!
as provided by the "Safety" Service Manual, part
number 720108000001, as well as the respective
national deviations.
ÄNDERUNGEN VORBEHALTEN / SUBJECT TO ALTERATION
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