Grundig TVR 3730 text Serviceanleitung Seite 8

Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Leistungs-Chassis / Power Chassis (GSPD)
Hinweis:
Die Schaltungsänderungen sind der Service-Manual-Ergänzung, Sachnummer 72010-524.98, auf den Seiten 4-16, 4-19, 4-22 hinzuzufügen.
Note:
These changes in the circuit are to be added to pages 4-16, 4-19, 4-22 of the Service Manual Supplement, part number 72010-524.98.
Vdem in
Sync
C
T
R standby
F
R standby
P
VOLTAGE
FEEDBACK
E/A OUT
FOLDBACK INPUT
8
Vref Iref
DEMAGNETICATION
Vref
REFERENCE
MANAGEMENT
enable
BLOCK INITIALIZATION BLOCK
Vdem out
Vosc prot
Iref
OSCILLATOR Vosc
Iref
STANDBY
(REDUCED FREQUENCY)
2.5V
ERROR
AMP
CURRENT
SENSE
Dmax & SOFT-START
FOLDBACK
Iref
CURRENT SENSE INPUT
7 0,1V
5
1,3V
5363
80E
5365
80E
12
15
13
14
1371
T2,5A
15
18V
SUPPLY & UVLO1
Vc 2
13,5V
3 3V
OUTPUT
Set Q BUFFER
Latch
4
GND
Reset
Vovp out
THERMAL
Vref Vcc
SHUTDOWN
OVERVOLTAGE
MANAGEMENT
OVERVOLTAGE
7310
PROTECTION 6
MC44603P
UVLO1
CONTROL
Vref
Soft Start & Dmax
2,4V 11
7340
BC548B
9308
TL431CZ
only TVR 37...
3361
2364
470p
39E
6361
BYW36
6371
5370
80E
BYV27-100
2371
470p
6372
9304
BYV27-100
2381
470p
NEW
TVR 37..., TVR 51..., TVR 55...
39E
2309
4n7
NEW
3326:
TVR 37...:750E
TVR 51...:820E
TVR 55...:1K
K
R
A
GRUNDIG Service