Teac EU-48, Руководство по обслуживанию

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12
PINNING PIN VALUE
1. Non-inverting input 1 : 700mVrms, Min : 500mVrms, Max : 900mVrms
2. Mute input : 300mA (For mute to activate)
3. Ground
4. Output 1 : 9.8Vrms
5. Supply voltage (negative) : -16VDC
6. Output 2 : 9.8Vrms
7. Supply voltage (positive) : +16VDC
8. Inverting inputs 1 and 2 (Ground) : 0V
9. Non-inverting input 2 : 700mVrms, Min : 500mVrms, Max : 900mVrms
TDA8351/8356:
General Description:
The TDA8356 is a power circuit for use in 90ø colour deflection system for field frequencies of 50 to 120 Hz.
The circuit operates as a highly efficient class G system.
The TDA8351 is a power circuit for use in 110ø colour deflection system for field frequencies of 50 to 120 Hz.
The circuit operates as a highly efficient class G system.
Features:
n Few external components
n Highly efficient fully DC-coupled vertical output bridge circuit
n Vertical flyback switch
n Guard circuit
n Protection against:
- short-circuit of the output pins (7 and 4)
- short-circuit of the output pins to Vp
n Temperature (thermal) protection
n High EMC immunity because of common mode inputs
n A guard signal in zoom mode
PINNING PIN VALUE
1. Input power-stage (positive); includes Ii(sb) signal bias : 400mA, Min : 50mA, Max : 500mA
2. Input power-stage (negative); includes Ii(sb) signal bias : 400mA, Min : 50mA, Max : 500mA
3. Operating supply voltage : +15VDC
4. Output voltage B : Max : 52V Output current : 2App (TDA8356) 3App (TDA8351)
5. Ground
6. Input flyback supply voltage : Min : Vp, Max : 50V
7. Output voltage A : Max : 52V Output current : 2App (TDA8356) 3App (TDA8351)
8. Guard output voltage : Max:5.5V (Io:100mA)
9. Input feedback voltage : Max:52V
TDA6107Q:
The TDA6107Q includes three video output amplifiers in a SIL 9 MP (Single In Line 9 pins Medium Power) package SOT111BE,
using high-voltage DMOS technology, and is intended to drive the three cathodes of a colour picture tube.
In contrast to previous types of DMOS video amplifiers, all external resistors (Rf, Ri and Ra) are integrated, so the gain is fixed
and it saves 9 resistors.
To obtain maximum performance, the amplifier should be used with black-current control and mounted on the CRT panel.
Features:
n Bandwith: 4.0 MHz typ at 100Vpp (Measured in appli,cation set-up, with Rfl=1K5 and Cl=Ctube+Cpcb=10pF)
n Slewrate: 950V/ms
n Fixed gain of 50 times
n No external components, only the well known supply decoupling
n Very simple application with a variety of colour decoders
n Black-current measurement output for automatic black current stabilization
n Only one supply voltage needed
n Internal protection against positive appearing CRT flash-over discharges
n Protection against ESD
n Internal reference voltage
n Thermal protection
n Controllable switch-off behaviour
n Very small PCB dimensions
n Very high replacement value
PINNING PIN VALUE
1. Inverting input 1 : 2Vpp
2. Inverting input 2 : 2Vpp
3. Inverting input 3 : 2Vpp
4. Ground
5. BSC-output : Max:7V
6. Supply voltage : 200VDC
7. Cathode output 3 : 20mA, 100Vpp
8. Cathode output 2 : 20mA, 100Vpp
9. Cathode output 1 : 20mA, 100Vpp