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Very good documentation for the Grundig 2077 model (as well as similar 800/900/1000 series radios). The first two pages are a summary of reception specifications and output capability. The third page is the tuner dial indicator and dial cord routing diagram. the final ~5 pages are the schematics for the various models (including 2077). The scan quality of the schematics are good, adn can be easily read if zoomed in. The documents are in German, not English as stated. It would have been nice to have the tuning sequence and settings, and some trouble shooting materials... or component and wiring map.
 ;
Perfect like it was descriped, Perfect like it was descriped
;
Very good detail, all pages clear, exactly what I needed
;
Excellent service, and just what I needed to service my TU-7700. All pages of the manual are clear and easily readable.
;
Excellent printing quality.
A complete and very usefull service manual with all details.
GREAT SERVICE AT VERY LOW PRICE!
A+++++++++++++++++++++++++
Wiring diagram, blockdiagram, supply diagram and testpoints
EM2E
6.
36
Wiring diagram
TOP CONTROL PANEL P
0902
I2C overview
B5
0202 (2)
OTC
7001 SAA5800H
A7
TUNE, I/O, SIMM-CONNECTOR (FEMALE)
1200 UV1316/A I U-2
B2
IF, I/O VIDEOPROCESSING
7313 TDA9320
B4
HOP
7301 TDA9330H
LEFT (WHITE) 0936 (11) 0901 CVBS (YELLOW)
88
0383 (3) SVHS SCAVEM n.c.
SDA SCL
TUNER
13
5 4003 4004 SDA DATA-IN-OUT I2C FAST BUS DATA CLOCK I2C SLOW BUS 4 SCL 1 2 3 COMPAIR CONNECTOR SERVICE
HIP
8
47 46 SDA SCL
HOP
7
11 10 SDA SCL
CRT PANEL F
0923 (2) COIL
87
FOCUS E
OTC
0340 (11) 0201 (2)
0943
MAIN SWITCH PANEL
86
SMALL SIGNAL BOARD
91 92
85
0224 (7)
I2
I2C3 NVM BUS
1000 (80)
I3
V9
V10
V23
V22
0334 (1)
SDA
SCL 7011 M24C32
0947 (5)
5
6
NVM
LARGE SIGNAL PANEL
10
B6
AUDIO DEMODULATOR
7651 MSP3415D
B3
FEATURE BOX
7709 SAA4978H 7708 SAA990H
0945 (3)
MSP
0010
PICNIC
3
1 2
PROZONIC
SNERT-DA 61 SNERT-CL 62
14
n.c.
18
2
SUBWOOFER 0737 (3) 0045 (5)
1 SCL
SDA
1003 (1)
89 88 5 4 SCL SDA SCL CLK-16 CLK-32 7714 MSM54V/2222A
CENTRE 0738 (3)
SDA
0324 BLACK LEFT SPEAKER 0736 (3) (7)
FIELD MEMORY
20 1 15 26 7715 MSM54V/2222A
A15
A14
17
B
0317 (2)
0947 (5)
(2)
CLK-16
0936 (11)
FIELD MEMORY
15 26
17
(connected to deflection coil)
CLK-32
LOT
Focus VG2
white red
V18
V17
A
1902 (3) 1901-A/B
(2x21) 1201 (1)
Error Device
9943 (3) SCART
Description
BC-PROT HFB PICNIC 5V2 8V6 HOP video control/geometry HIP I/O-video processing NVM TUNER_prot Tuner ITT sound processor + Dolby FBX_PROT DNR-memory PROZONIC
Defective item
Diagram
Defect. module indication
Beam Current Horizontal Flyback
0945 (3)
1205 (80)
1 2
compair EHT
Beam Current protection H fail protection SAA4978 Supply 5V Supply 5V Slow I2C-bus blocked TDA9330 TDA9320 X-ray protection ST24E32 HOP protection Tuner protection UV1316 MSP3451/3415 Flash protection Featurebox protection SAA4956 SAA4990
0940 (11)
VG2
3
120100
7709
B3
Feature Box +5V Supply +8V Supply Slow I2C blocked
0946 1409 (2) (2)
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
CRT
RED
1200 0325
interface CL 06532156_033.eps
7301 7323 7011
B4 B2 A3 B5
Video Controller Chroma IF IO Control +8V (Tuner) Supply
0345 (3)
RIGHT SPEAKER 0735 (3)
SW 0739 (3)
U1200 7651
A7 B6
Tuner Audio Module
HEADPHONE
7714 7708
B3 B3
I/O DEFLECTION COIL PANEL O
RIGHT (RED)
CL96532156_034.eps 140100
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