Grundig GV 26 Скачать руководство пользователя страница 25

GRUNDIG Service

2 - 9 

k

GV 26 …, GV 46 …, GV 6000 …, GV 6001 V+, GV 6066, GV 6300 …

Descriptions

2.1.6 Tape Servo Control
The capstan motor is a three-phase motor which is fitted with Hall
generators. These generate signals which are fed to the capstan motor
driver IC (LB1897) in the capstan motor assembly. Depending upon
these signals the IC commutates the individual phases of the capstan
motor.
The sense of rotation (CREV) is switched over via IC7400-(5) (LOW
level for the forward sense of rotation or a HIGH level for the reverse
direction).

 

This control signal is passed through plug contact 1946-(2)

to the capstan motor driver. For speed control, the FG Hall element
(Magneto Recitive Element) in the capstan motor generates pulses at
a frequency of 1514Hz at the rated speed. The pulses (FG) from the
capstan motor driver IC (LB1897)

 

for speed control are fed via plug

contact 1946-(4) and the comparator in IC7460-(8/11) to IC7400-(13).
The tachopulses (actual value) are compared in the IC7400 with an
internally generated reference value. From IC7400-(25) the 

µ

C feeds

out a pulse-width-modulated square wave voltage (CAP). This is
integrated by R3482 / C2461 and fed via plug contact 1946-(6) as a
control voltage to the capstan motor driver IC (LB1897).
For the functions "Wind/Rewind" and "Picture Search Forward/Back-
ward" (

3) in VCR models with High Speed Drive the supply for the

capstan motor driver is switched over from +8.8V to +14.6V. This is
done by the control signal (CSW) from the deck computer IC7400-(59)
via plug contact 1942-(8) within the power supply unit.

2.1.7 Tracking / Autotracking
During recording, encoded 25Hz-CTL-pulses are recorded onto the
tape via the sync head. These pulses are required on playback for
tracking control.
On recording, the 25Hz pulses are taken from IC7400-(16) to
IC7460-(16) and are then passed through IC7460-(2) and the connec-
tor 1961-(7) to the sync head.
On playback, the recorded CTL pulses are scanned by the sync head
to be subsequently converted to square wave pulses in IC7460 and
passed on via IC7460-(16) to IC7400-(11/14).
When a cassette is loaded, the Autotracking function determines the
optimum track position on playing back. For this, a voltage "TRIV"
(Tracking Information Video) is derived from the envelope of the FM
packages and fed in to the main computer IC7400 on the analog input
(pin 50). This voltage is generated in the head amplifier (HV).
On the basis of the tracking centre position, the nominal tracking value
is increased or reduced. For each of the two directions, the appropriate
nominal value is determined at which the voltage derived from the FM
envelope "TRIV" starts to decrease as against the maximum determi-
ned voltage level. The mid-value between the two limit values is then
used as the optimum tracking value. On completion of this meas-
urement, the Autotracking function is switched off and the determined
phase is controlled by the CTL pulses.
If more than two successive CTL pulses are missing, the Autotracking
function is reactivated assuming, in this case, that a new recording with
a different tracking position is played back.

2.1.8 EEPROM
In the EEPROM (IC7890) the control computer (IC7201) stores special
data of the customer and the machine (eg. option code, station tuning
data/channels, software/adjustment values). The data is transferred
via the I

2

C-bus (SDA / SCL).

2.2 Family Board – Frontend (FV)

The Frontend has the function of amplifying and demodulating the IF
signal fed in from the tuner. The resulting signals are the CCVS signal
and the audio signal.

Signal Processing with IC7720
Coming from the tuner contact 1701-(17), the IF signal passes through
the surface acoustic wave filter F1721, which determines the IF band
pass. Via IC7720-(1/2), the signal is fed to a gain controlled wideband
amplifier with synchronous demodulator, and subsequently, to a video
amplifier. Another stage in the IC is used to generate the control
voltage for the wideband amplifier and the tuner. This control voltage
is fed from IC7720-(12) to the tuner (contact 5). The control threshold
level is adjustable with R3742 (AGC). Between pin 13 and pin 14 of the
IC7720, the demodulated IF signal passes through a sound trap
F1740, in which the audio component of the CCVS signal is sup-
pressed. Subsequently, the signal is amplified and passed on to the
"IN/OUT" circuit stage (as a "VFV"-signal) via IC7720-(7) and the
amplifier T7725.

The demodulated IF signal for FM sound processing is fed out from
IC7720-(13). Via the IF filter F1745 or F1746 and IC7720-(11), the
signal is fed in for FM demodulation. On IC7720-(9) the AF signal "AFV"
is present and, following the deemphasis circuit R3737 / C2276 and
the amplifier T7723, it is fed via the "IN/OUT" circuit stage to the Sound
stage.

Signal Processing with IC7721
In IC7721, the video and audio signals are separately processed and
demodulated.
– Video signal processing

From tuner contact 1701-(17), the IF signal passes through the
surface acoustic wave filter F1721, which determines the IF band
pass. Via IC7721-(1/2), the signal is fed to a gain controlled wide-
band amplifier with synchronous demodulator, and subsequently, to
a video amplifier. Another stage in the IC is used to generate the
control voltage for the wideband amplifier and the tuner. This control
voltage is fed through IC7721-(16) to the tuner (contact 5). The
control threshold level is adjustable with R3742 (AGC). Between pin
18 and pin 19 of the IC7721, the demodulated IF signal passes
through a sound trap F1740, in which the audio component of the
CCVS signal is suppressed. This is not necessary for the SECAM-
DK and SECAM-L standards. In this case, the sound trap 1740 is
bridged by IC7722-(11…14). Finally, the signal is amplified and fed
through IC7721-(8) and the amplifier T7725 to the "IN/OUT" circuit
stage (as a "VFV" signal).

– Audio signal processing

From the tuner contact 1701-(17), the IF signal passes through the
surface acoustic wave filter F1719, which determines the IF band
pass. Via IC7721-(27/28), the signal is fed to a gain controlled
wideband amplifier with synchronous demodulator. On one path,
the demodulated IF signal is directly fed through the AM demodula-
tor to the output amplifier. On another path, the signal is fed out from
IC7721-(17) for FM demodulation. After the IF filter F1745 or F1746
and IC7721-(15), the signal is passed through the FM demodulator
(FM-PLL) to the output amplifier. As "AFV", the signal is taken via
IC7721-(10) to the "IN/OUT" circuit stage.

2.3 Family Board – IN/OUT, VPS (IO)

General
The universal applicability of these video recorders requires special
facilities for distributing the input and output signals corresponding to
the operating mode. For this, the switching ICs IC7550, IC7551 and
IC7552 are necessary.

Record, EE and Playback Modes
The signals are selected and distributed in the switching ICs. In video
recorders fitted with one EURO-AV socket, it is IC7551 for video and
audio signals. In models fitted with two EURO-AV sockets, these
switching ICs are IC7552 for the video signals, and IC7551/IC7550 for
the audio signals. These switching ICs are supplied with the input
signals from the sources (EURO-AV1, EURO-AV2, LINE-Front, CV,
RF, EE/PB/OSD). The signals are selected according to the operating
mode and fed to the circuit sections Video/Chroma "VREC" and
Standard Sound "AMLR", and the output sockets EURO-AV1 "AOUT1"
and EURO-AV2 "AOUT2" respectively.
The switches are controlled by the keyboard control computer via the
I

2

C bus (SCL / SDA) and the control line IS2. The control line IS1 is

driven via the tape deck computer.
On loop-through (EE) and playback mode, the audio signal (AMLP) is
directly passed on to the modulator 1701 in the Frontend, the video
signal (VIDOUT) reaches the modulator on an indirect path via the
OSD circuit stage (VOSD) and T7500.

Decoder Operation
For financial and copyright reasons, a couple of private television
stations transmit scrambled video and audio signals so that a Pay-TV-
Decoder is required to descramble the signals.

– Technical realization
The Pay-TV-Decoder is connected to the EURO-AV2 socket and the
TV receiver to the EURO-AV1 socket.
This connection makes it possible to operate the Pay-TV-Decoder in
combination with the TV receiver and also with the video recorder
without changing the connections.
When using the video recorder, the coded video and audio signals are
taken via the EURO-AV2 socket to the Pay-TV-Decoder. The Decoder
descrambles the signals and feeds them back to the video recorder.
This signal path must be released for the individual programmes when

Содержание GV 26

Страница 1: ...terlagen f r den Komplettservice Additionally required Service Manuals for the Complete Service PAL SECAM GV 26 GV 46 GV 6000 GV 6001 V Palermo GV 6066 GV 6300 GV 26 77400 765 51 G MF 0200 GV 26 VPS 7...

Страница 2: ...9 SECAM L SE 4 32 Head Amplifier HV 4 33 Standard Sound AL 4 34 Family Board II IN OUT PIO 4 35 Keyboard Control Unit PDCA1 4 36 Keyboard Control Units PDCG1 PKG11 PKG12 4 39 Drive Mechanism 5 1 5 12...

Страница 3: ...Board II IN OUT PIO S P 4 36 Bedieneinheit Keyboard Control Unit PDCA1 S P 4 39 Bedieneinheit Keyboard Control Unit PDCG1 S P 4 39 Bedieneinheit Keyboard Control Unit PKG11 S P 4 40 Bedieneinheit Key...

Страница 4: ...st cassette HiFi 9 27540 1016 Torquemeter 600gf cm 75987 262 72 Adapter for Torquemeter 600gf cm 75987 262 73 Adjustment screw driver 75987 262 80 Tape tension adjustment tool handle and pin 75988 002...

Страница 5: ...earch on playback rewind on stop Automatic station search Mains socket EURO AV1 socket EURO AV2 socket Option Aerial sockets 1 Zur Programmplatzwahl bei Stop 2 Zur Programmplatzwahl bei Stop 3 Aufnahm...

Страница 6: ...the programme position from stop selects data on timer programming Forward picture search on playback fast forward from stop freeze frame on playback Starts playback function 1 TV Monitorfunktion 2 E...

Страница 7: ...t ist die Cassettenklappe so nach innen zu dr cken da der Hebel E in die F hrung Fig 4 der Cassetten klappe eintaucht Service Instructions 1 Removing the Cabinet Parts 1 1 Cabinet Upper Part Undo 4 sc...

Страница 8: ...sisplatte und Laufwerk durch Ein drehen der Masseschraube M Fig 2 herstellen 2 Disassembly Instructions 2 1 Removing the Keyboard Unit PDC Release the locking lugs F Fig 5 and remove the Keyboard Unit...

Страница 9: ...3 Removing the Drive Mechanism Undo the chassis connecting screw M Fig 2 Release the locks R and S Fig 9 of the cassette compartment and move it inwards to gain access to the screws U Fig 10 Undo the...

Страница 10: ...Option Code A VE 01 40393 5 52 0 789012 1 Code Label on the Drive Mechanism Advice The production code and the serial number on the code label of the drive mechanism do not necessarily agree with the...

Страница 11: ...delmotor verbunden ist AC 2V Div 0 5s Div Cassette eingeschoben Cassette unten Band halb eingef delt Band eingef delt Wiedergabe F deltacho Impuls FTA Init Schalter Ebene 02 Fehlercode und Fehlerstatu...

Страница 12: ...leich wert wird nach erfolgreich durchgef hrtem Abgleich im EEPROM gespeichert Anschlie end schaltet das Ger t in den Standby Betrieb Bei nicht erfolgreich durchgef hrtem Abgleich gibt das Ger t die T...

Страница 13: ...253 254 255 2 Sonderfunktionen Dauerlaufpr fung Die Aufnahme oder Wiedergabe Dauerlaufpr fung ist im Servicetest programm integriert Diese hilft Fehler zu finden die sporadisch auftreten Ein erkannter...

Страница 14: ...nction of the Init switch dependent on the tape deck position For this the number of the threading tacho pulses FTA is important These signals are generated by the threading tacho generator butterfly...

Страница 15: ...utomatically on calling up the level On successful completion the resulting value is stored in the EEPROM Afterwards the VCR switches to stand by mode If the adjustment is not carried out successfully...

Страница 16: ...43 244 245 246 247 248 249 250 251 252 253 254 255 2 Special Functions Continuous Operation Test The continuous recording and playback test is part of the service test programme A discovered fault is...

Страница 17: ...e Sekun d rwicklungen des Trafos durch die Dioden Elkos und die Last Ist die gesamte im Trafo gespeicherte Energie an die Last abgegeben und das magnetische Feld abgeklungen so fallen die Spannungen a...

Страница 18: ...s F delmotors Cassettenschacht F del mechanik Der Antrieb der Cassettenschacht und F delmechanik erfolgt ber denF delmotor ZurAnsteuerungdesF delmotorsgibtderLaufwerks rechner IC7400 die Steuersignale...

Страница 19: ...elangt ber IC7720 12 zum Tuner Kontakt 5 Ihr Regeleinsatz ist mit R3742 AGC einstellbar Das demodulierte ZF Signal durchl uft zwischen Pin 13 und Pin 14 des IC7720 einen Ton Trap F1740 wo man den Tona...

Страница 20: ...7013 zum Pin 1 des IC7051 Im IC7051 teilt sich der Signalweg Zum einen gelangt das Signal vom Band f r die Dropout Erkennung zum Dropout Detektor DO DET der bei einem Pegeleinbruch mit definierter Gr...

Страница 21: ...be Die gemeinsamen Enden der rotierenden bertrager SP und LP erhalten ber 1915 8 und IC7150 1 bzw 1915 5 und IC7150 11 HF Masse DieFM InformationenvomBandgelangenbeiStandardplay ber 1915 9 7 an die Pi...

Страница 22: ...nder verbunden EEPROM IC7890 Tuner Modulator 1701 VPS IC7540 Eingangswahlschalter IC7552 Das Driften des Tuners oder des Antennensignales erzeugt im Empfangsschaltungsteil auf der Chassisplatte die Re...

Страница 23: ...ad GB Description 1 Power Supply PSM Typical Data Mains voltage 187 264V Mains frequency 45 65Hz Maximum power 50W Switching frequency 100kHz Efficiency 78 at maximum load Short circuit protection pro...

Страница 24: ...otor For driving the threading motor the deck computer IC7400 feeds out the control signals TMO Pin 35 and THIO Pin 10 These signals drive the threading motor via the threading motor driver IC7440 7 8...

Страница 25: ...a sound trap F1740 in which the audio component of the CCVS signal is sup pressed Subsequently the signal is amplified and passed on to the IN OUT circuit stage as a VFV signal via IC7720 7 and the a...

Страница 26: ...lowpass filter SUB LPF a deemphasis stage MAIN DEEMPH containing a playback amplitude control and an R P switch to pin 4 of the IC7051 Afterwards the CVS signal is passed through an amplifier stage T7...

Страница 27: ...head amplifier Control of the switches in IC7110 On recording a LOW level 0 7V is present at the collector of the transistor T7105 This transistor works like a diode turns on and applies approximatel...

Страница 28: ...generates the AFC control voltage in the Frontend circuit on the Family Board This voltage is supplied to pin 78 and the keyboard control computer readjusts the tuner tuning voltage via the I2 C bus I...

Страница 29: ...ufwerksteuerung Deck Elektronik DE Me mittel Testcassette Servicearbeiten nach Austausch der Kopfscheibe Abgleich Nr 1 des IC7890 Abgleich Nr 1 2 3 Bedieneinheit Abgleich Nr 1 1 5V R3078 Spannung mit...

Страница 30: ...oma Signal mit R3042 SECAM Curr auf 42mVSS 17dB des FM Signals einstellen Verbindung von IC7051 2 mit 5V auftrennen 3 4 Chassisplatte Standardton AL Me ger te Me mittel Frequenzz hler NF Millivoltmete...

Страница 31: ...ard Control Unit Adjustment no 1 1 5V R3078 Adjust voltage to 5 3V 0 03V with R3078 Digital voltmeter 1509 16 Adjustment Preparation Adjustment Procedure GB Adjustment Procedures 1 Power Supply PSM Te...

Страница 32: ...et and record it 1 Sync Frequency R3057 Sync Frequ 2 Chroma Recording Current PAL only with R3038 fitted R3038 PAL Curr SECAM L R3042 SECAM Curr 3 4 Family Board Standard Sound AL Test equipment aids...

Страница 33: ...cart 1 Pin 8 Ausgang Scart 1 pin 8 output DE IO 8SC1H Scart 1 Pin 8 hoher Pegel Scart 1 pin 8 high level DE 8SC1M Scart 1 Pin 8 mittlerer Pegel Scart 1 pin 8 medium level DE 8SC2 Scart 2 Pin 8 Eingang...

Страница 34: ...g LOW Display heater LOW DC DE PSM HEST Heizungsspannung Steuersignal Heater voltage control signal DC DE PSM HSC2 Farbphasenumschaltung bei LP Featuremode Colour phase switching for LP feature mode D...

Страница 35: ...ideoausgang Scart 1 2 Video output scart 1 2 IO PIO VPSVID Video f r VPS Schaltung video for VPS circuit IO OS VREC Video Aufnahme von IO Video record from IO IO SE VS VREF Referenzspannung Reference...

Страница 36: ...46 GV 6000 GV 6001 V GV 6066 GV 6300 Platinenabbildungen und Schaltpl ne Layout of PCBs and Circuit Diagrams GV 26 GV 46 GV 6000 GV 6001 V GV 6066 GV 6300 Blockschaltplan Block Circuit Diagram Analog...

Страница 37: ...REC AC 100mV Div 20 s Div IC7051 1 12 PB DC 500mV Div 20 s Div 0V IC7051 16 T7821 Emitter 13 PB DC 1V Div 20 s Div 0V IC7051 14 R3808 14 PB AC 100mV Div 20 s Div IC7051 26 16 PB AC 100mV Div 20 s Div...

Страница 38: ...ayout of PCBs and Circuit Diagrams GV 26 GV 46 GV 6000 GV 6001 V GV 6066 GV 6300 Blockschaltplan Block Circuit Diagram Digital 4 9 GRUNDIG Service 4 10 GRUNDIG Service PKG11 PKG12 Opiton Option Option...

Страница 39: ...Div 10 s Div Connector 1509 1 PB 7 AC 5V Div 10 s Div Connector 1509 2 PB 8 DC 0 5V Div 5ms Div 0V T7463 Emitter 42 PB DC 1V Div 5ms Div 0V IC7460 6 7 43 WIND DC 1V Div 10ms Div 0V OK7466 Collector R3...

Страница 40: ...6066 GV 6300 Blockschaltpl ne Block Circuit Diagrams IN OUT Audio Video mit einer EURO AV Buchse with one EURO AV Socket IN OUT Audio mit 2 EURO AV Buchsen with 2 EURO AV Sockets Reference AL 4 34 DE...

Страница 41: ...inenabbildungen und Schaltpl ne Layout of PCBs and Circuit Diagrams IN OUT Video mit 2 EURO AV Buchsen with 2 EURO AV Sockets Reference AL 4 34 DE 4 21 FV 4 25 HV 4 33 IO 4 27 OS 4 24 PDCA1 4 36 PDCG1...

Страница 42: ...6 3034 C 6 3040 B 7 3041 A 7 3042 A 7 3043 B 7 3044 B 7 3046 B 7 3048 B 7 3050 C 8 3052 C 8 3054 B 8 3055 B 7 3056 B 8 3057 B 7 3058 B 9 3059 A 9 3060 A 5 3061 C 3 3062 A 5 3063 A 4 3064 A 4 3067 A 5...

Страница 43: ...X 3008 1 2 4 5 SOC1012T 7070 Y BYW98 200 6088 Y MBR360 6098 BYW98 200 6080 Y MBR1060 6096 Y BYW98 200 6092 4 BC327 40 7060 Y B 33 6084 L7812ACV GND OUT IN 1 2 3 7088 Y 470U 50V 2081 Y SI R 47 3080 6 8...

Страница 44: ...F 4 2027 G 6 2028 G 6 2033 I 8 2034 H 3 2061 H 3 2065 H 4 2070 I 4 2072 I 4 2073 I 3 2074 I 4 2085 F 3 2086 F 3 2164 D 6 2300 C 9 2301 C 9 2302 C 9 2318 C 8 2320 C 8 2401 G 13 2417 D 12 2440 E 16 2459...

Страница 45: ...2 2108 I 2 2109 H 2 2110 H 2 2111 I 2 2112 H 2 2113 I 3 2114 G 2 2115 H 2 2116 I 3 2117 F 2 2118 H 3 2119 I 2 2121 I 1 2122 I 3 2123 I 3 2124 I 2 2125 I 1 2126 J 1 2127 J 2 2128 J 2 2129 I 3 2130 I 3...

Страница 46: ...A O N M L K P J I H G F E D C B A O N 4 5 6 1 7 8 9 10 11 12 13 14 15 16 17 2 18 19 20 21 22 23 3 0E 4421 0E 4420 4k7 3413 4111 0E 3399 0E 3k3 3351 10k 3353 4k7 3352 3k3 3350 220E 3423 220E 3459 100k...

Страница 47: ...4M7 3864 4k7 3863 100k 3861 22k 3862 15k 3805 47E 3807 220E 3808 22k 3809 10k 3806 1k 3880 2k2 3881 2k2 3882 4k7 3884 10k 3885 10k 3883 10k 5D 5D 5D 5ASW 5ASW 5ASW 5ASW 5ASW 5VA3 5VA3 5VA3 5VA3 5VA 5...

Страница 48: ...A15 7727 I 8 7728 H 9 7729 D 8 7730 C 9 7731 I10 6722 G 9 6760 C 8 6761 C 8 7500 J 7 7720 E13 7721 D17 7722 I21 7722 I19 7722 K15 7723 E22 4 5 6 7 1 8 9 10 11 12 13 14 15 16 17 18 19 2 20 21 22 23 3...

Страница 49: ...3 6590 J15 7501 B 7 7502 B 8 7510 D 8 7512 B20 7540 G14 7550 B18 7550 B17 4 5 6 7 8 9 10 11 12 13 14 15 16 17 2 18 19 20 21 22 3 I H L G F E D C B A K J I H L G F E D C B A K J 4 5 6 7 8 9 10 11 12 1...

Страница 50: ...k7 3008 68k 3005 100k 3011 3k9 3035 22k 3004 18k 3073 18k 3074 33k 3079 10k 3080 22k 3081 22k 3076 10k 3017 2k7 3014 1k 3068 82k 3069 2k7 3039 2k2 3023 4k7 3020 1k 3022 2k2 3018 1k5 3013 47k 3075 220E...

Страница 51: ...1n 6V3 2115 220p 6V3 2109 15p 25V 2110 100n 25V 2124 100n 6V3 2121 1n 6V3 2119 100p 6V3 2127 180p 6V3 2126 22p 6V3 2129 82p 6V3 2106 10n 6V3 2134 220p 6V3 2128 12p 6V3 2118 33p 6V3 2135 68p VREF VREF...

Страница 52: ...37 470E 3650 0E 3655 5D 12A 12A 12A 12A 12A 12A 5D 12A IREV CTL2 CTL1 AMLR AMLP LPA MTA IPAL IEO RALM BC848B 7606 BC848B 7610 202030090606 12n 2623 50V 470p 2608 27n 2626 202030090611 10n 2627 2020300...

Страница 53: ...ector 1592 B TO FAMILY BOARD PMB I O 0 1V 0 1V 0 3V red 7V GNDA 8SC2 GNDA MON AOUT2 BLANKING green pin10 blue AIN2 SCART 2 SCRAMBLE not used not used PIO 39830 V Measured in Playback Mode 7540 F 5 659...

Страница 54: ...2k2 3233 3k3 3250 0E 3998 7231 DTC124EK 1921 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1N4148 6290 1N4148 6287 6 3V 470u 2296 5 5V 220m 2297 6 3V 220u 2211 16V 22u 2220 7202 36 35 34 33 32 31...

Страница 55: ...6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 B A B A 2 2 0 3 B 1 4 2 2 0 4 B 1 5 2 2 1 0 A 4 2 2 3 0 B 1 6 2 2 3 1 B 1 7 2 2 3 7 B 1 5 2 2 3 9 A 5 2 2 5 1 A 6 2 2 5 2 B 1 3 3 2 0 1 A 1 4 3 2 2 8 A 5 3...

Страница 56: ...2 2 3 0 B 1 7 2 2 3 1 B 1 7 2 2 3 7 B 1 6 2 2 3 9 A 6 2 2 5 1 A 1 7 2 2 5 2 B 1 4 3 2 0 1 A 1 7 3 2 2 8 B 6 3 2 2 9 B 5 3 2 3 3 B 1 7 3 2 3 5 A 1 7 3 2 3 6 B 1 7 3 2 3 7 A 1 7 3 2 4 0 A 1 7 3 2 5 0 A...

Страница 57: ...27 14 15 16 17 18 19 20 5 6 7 8 9 10 11 12 13 15 15 15 TIMER 12G e g F21 r P1 e g c n r p d m k h j a f b 14G 12G 13G F12 P2 e g c n r p d m k h j a f b 15G 14G F11 P3 15G P4 P1 P9 P7 P8 P4 P3 P2 P6...

Страница 58: ...4 42 GRUNDIG Service Platinenabbildungen und Schaltpl ne Layout of PCBs and Circuit Diagrams GV 26 GV 46 GV 6000 GV 6001 V GV 6066 GV 6300 Notizen Notes...

Страница 59: ...his description are also specified in the exploded views Test Equipment Jigs Part no Test cassette 9 27540 1011 Test cassette HiFi 9 27540 1016 Nylon gloves commonly available Laufwerk Das Laufwerk be...

Страница 60: ...Schrauben sind nur befestigt Cassettenschacht Scanner Capstanmotor Kombikopf Anmerkung Bei einer nderung der Position des Cassettenschachtes Lift w h rendderReparaturmu dieserdanachvonHandindiePositio...

Страница 61: ...en R Fig 1 und S Fig 2 des Cassettenschachtes l sen und diesen dabei so weit nach innen schieben bis sich der Cassettenschacht leicht absenkt Antriebsrad des F delmotors in Drehrichtung Einf deln Fig...

Страница 62: ...loading gearwheel Pos 103L is released if it is not the drive gear of the threading motor must be turned to release it Put on the cassette compartment Fastenthecassettecompartmentwiththe4screws A Fig...

Страница 63: ...or into the headwheel Fig 9 Turn the lever by 90 in the direction of the arrow OPEN and remove the headwheel together with the lower clamping element Fig 10 Fig 7 A B 2 3 Kopfscheibe Hinweis Zum Ausba...

Страница 64: ...prechstrom einstellen siehe Abgleich Kap 3 Bandlauf kontrollieren siehe Punkt 3 1 Installation Before fitting the new headwheel make sure that the motor spindle is clean and undamaged the spindle shou...

Страница 65: ...e Azimuth adjustment screw Fig 14 2 5 F delmotor Pos 38 Antriebsriemen Pos 39 entfernen Fig 15 und den Stecker des F delmotors abziehen Motorhalter Pos 40T in Pfeilrichtung dr cken und F delmotor Pos...

Страница 66: ...ters Pos 40 aushaken und so weit im Uhrzeigersinn verdrehen bis die Andruck rolle und die F hrung Pos 41S entriegelt und abgenommen werden k nnen Fig 18 Achtung Kein Fett auf die Capstanwelle bringen...

Страница 67: ...chlittens links mu der Bandlauf Punkt 3 1 kontrolliert und gegebenenfalls eingestellt werden 2 11 Beruhigungsrolleneinheit Pos 9 Befestigungshaken der Feder a l sen und Beruhigungsrollen einheit Pos 9...

Страница 68: ...auf geraden Verlauf und minimale Abweichung einstellen Fig 24 Taste Standby dr cken 3 1 1 Threading Roller Unit Left Right Coarse adjustment Connect the 10 1 test probes of the dual channel oscillosco...

Страница 69: ...llung mu die Testcassette erneut eingelegt wer den von Eject Stellung starten Den Schwarz Wei Teil der Testcassette wiedergeben Das Servicetestprogramm aufrufen der Trackingwert geht dadurch in die Mi...

Страница 70: ...teller aufsetzen und entgegen dem Uhrzeigersinn so lange drehen bis der Wickelteller leicht durchrutscht Fig 28 Wert am Drehmomentmesser mu 7mNm 3mNm 70gf cm 30gf cm betragen 3 3 Brake Band Adjustment...

Страница 71: ...zteillisten Exploded Views and Spare Parts Lists GRUNDIG Service 6 1 1 Explosionszeichnungen und Ersatzteillisten Exploded Views and Spare Parts Lists 150 l Oil Sach Nr Part No 75988 002 35 Fett Greas...

Страница 72: ...gen und Ersatzteillisten Exploded Views and Spare Parts Lists GV 26 GV 46 GV 6000 GV 6001 V GV 6066 GV 6300 6 2 GRUNDIG Service 2 Fett Grease Sach Nr Part No 75988 002 36 Isopropanol Fusselfreies Tuch...

Страница 73: ...chnungen und Ersatzteillisten Exploded Views and Spare Parts Lists GRUNDIG Service 6 3 3 0170 000 0007 000 0007 001 0004 000 0160 000 0050 000 0001 200 0006 001 0006 002 0075 000 0006 000 0007 200 006...

Страница 74: ...fischen Vorschriften The regulations and safety instructions shall be validasprovidedbythe Safety ServiceManual part number 72010 800 00 as well as the respective national deviations Ersatzteilliste S...

Страница 75: ...ifischen Vorschriften The regulations and safety instructions shall be validasprovidedbythe Safety ServiceManual part number 72010 800 00 as well as the respective national deviations Ersatzteilliste...

Страница 76: ...ons and safety instructions shall be validasprovidedbythe Safety ServiceManual part number 72010 800 00 as well as the respective national deviations Ersatzteilliste Spare Parts List 7 96 D Btx 32700...

Страница 77: ...ll as the respective national deviations Ersatzteilliste Spare Parts List 8 96 D Btx 32700 GV 6300 SV GV 6300 SV 1 0001 000 3 75988 037 60 RAHMEN FRAME 0001 200 3 27034 208 00 2 MASSEFEDER EARTH SPRIN...

Страница 78: ...X CHASSIS MOUNTING SPRING 2X 0005 000 1 75988 018 13 P BREMSE LINKS MAIN BRAKE LEFT 0006 000 1 75988 018 13 P BREMSFEDER 2X MAIN BRAKE SPRING 2X 0009 000 1 75988 025 03 DAEMPFUNGSROLLE DAMPING ROLLER...

Страница 79: ...JST CAPSTAN MOBO SOCKET JST 1961 000 75988 017 52 STECKERLEISTE 7 POL MULTIPOINT CONNECTOR 7P 1962 000 75988 000 97 STECKERLEISTE 3 POL MULTIPOINT CONNECTOR 3P BEZEICHNUNG DESCRIPTION SACHNUMMER PART...

Страница 80: ...48 B T 7009 75988 010 36 TRANS DTC 124 EK T 7160 8301 185 019 SMD TRANS BFS 19 PHI ALLE NICHT AUFGEF HRTEN E TEILE SIEHE E LISTE CHASSISPL 27599 010 01 ALL PARTS NOT LISTED REFER TO PARTS LIST FAMILY...

Страница 81: ...B SACHNUMMER ANZ POS NO FIG PART NUMBER QTY BEZEICHNUNG DESCRIPTION D GB 0010 000 75988 010 55 SICHERUNGSHALTER FUSE HOLDER 0011 000 75988 010 55 SICHERUNGSHALTER FUSE HOLDER BEZEICHNUNG DESCRIPTION S...

Страница 82: ...RT NUMBER POS NR POS NO BEZEICHNUNG DESCRIPTION SACHNUMMER PART NUMBER POS NR POS NO IC 7201 75988 038 79 IC TMP 87CP71F PDCE1 2P S 1236 75988 037 16 SCHALTER TAKT 1P SKQNAE S 1237 75988 037 16 SCHALT...

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