GV 26 EURO, GV 6000 EURO, GV6400 EURO
Adjustment Procedures
GRUNDIG Service
3 - 3
k
3. Family Board (PMB)
42
22
21
1
20
33
52
1
1
1
16
LA 7437A
TVC
TDA 4722
7050
LA7311
SDA 5642
TDA 5241
STV 6400
LC 74781
SAA 1310
L 2722
ST24C08
LA 7282
HEF 4052
TDA9800T
LC89973M
TDA9812T
1
1
1
8
4
5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
21
1
1
1
1
1
1
1
7051
7110
1405
1404
1401
1402
1403
Band-I-
Adj.
Sync-Frequ.
PAL-Curr.
FMRV
PB
Lev.
BIAS R
(Erase Frequ.)
BIAS
Dub.
Frequ.
SECAM-Curr.
AGC
Adj.
Phase
Offset
VIDEO
Ampl.
AFC
40,4MHz min.
Fuse
T630mA
Fuse
T1A
Fuse
T500mA
Fuse
T500mA
Fuse
T80mA
7540
9013
7300
7552
7800
7460
7400
7440
7890
7601
7551
1701
TUNER
&
MODUL.
(TUMOD)
SCART
POWER
SUPPLY
PSM
PIO, POIO, PVIO
1945/1943
1941
1951
1916
1915
1930
1946
1592
1962
3600
1944
1961
3748
3057
SDA
SCL
SWIN
TRIV
GND
3038
3606
5603
3618
5604
3042
3742
3740
3705
5725
5721
7720
7060
7721
2820
1
A
D
17
1
18
PMB-DE
PMB-SE
PMB-IO
PMB-FV
PMB-AL
PMB-IO
PMB-OS
PMB-HA
PMB-VS
1942
1509
3.1 Family Board – Deck Control / Deck Electronic (DE)
Test jigs: Test cassette
Service work after changing the …
… Headwheel: Adjustment no. 1
… IC7412: Adjustment no. 1, 2, 3; Keyboard Control Unit: Adjustment no. 1
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…)
Test equipment: Digital Voltmeter.
Service work after changing the Power Supply: –
Adjustment
Preparation
Adjustment Procedure
2. Keyboard Control Unit (PDC…)
Test equipment: Frequency Counter
Service work after replacing the Keyboard Control Unit: –
Adjustment
Preparation
Adjustment Procedure
1.1 Clock
Observe the instructions for Level 53 (see page 1-17).
Terminate the Service Test Programme (see page 1-16).
Call up the Service Test Programme (see page 1-16).
Call up Level 53 (see page 1-16).
1. Headwheel Position
Indicator
2. VCR Option Code
3. Automatic Contour
Control (Option)
Observe the instrucitons for Level 51 (see page 1-17).
Terminate the Service Test Programme (see page 1-16).
Observe the instrucitons for Level 40 (see page 1-17).
Terminate the Service Test Programme (see page 1-16).
Observe the instrucitons for Level 52 (siehe Seite 1-17).
Terminate the Service Test Programme (see page 1-16).
Call up the Service Test Programme (see page 1-16).
Call up Level 51 (see page 1-16).
Call up the Service Test Programme (see page 1-16).
Call up Level 40 (see page 1-16).
Call up the Service Test Programme (see page 1-16).
Call up Level 52 (see page 1-16).
