Hitachi CG2026S, Service Manual

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10
PINNING
1. N.C
2. N.C.
3. MUTE
4. ST-BY
5. PW-GND
6. S-GND
7. IN
8. VCC
9. OUT+
10. OUT -
General Description of TDA7266
The TDA7266 is a 2x7 Watt dual power amplifier. It is used for sound amplification at stereo TV sets.
WIDE SUPPLY VOLTAGE RANGE (3-18V)
MINIMUM EXTERNAL COMPONENTS
– NOSWR CAPACITOR
– NOBOOTSTRAP
– NOBOUCHEROT CELLS
– INTERNALLY FIXED GAIN
STAND-BY & MUTE FUNCTIONS
SHORT CIRCUIT PROTECTION
THERMAL OVERLOAD PROTECTION
PINNING
1. OUT1+
2. OUT1 –
3. VCC
4. IN1
5. N.C.
6. MUTE
7. ST-BY
8. PW-GND
9. S-GND
10. N.C.
11. N.C.
12. IN2
13. VCC
14. OUT2 -
15. OUT2+
TDA8174AW
INDEPENDENT VERTICAL AMPLITUDE ADJUSTMENT
BUFFER STAGE
POWER AMPLIFIER
FLYBACKGENERATOR
THERMALPROTECTION
INTERNAL REFERENCE VOLTAGE DECOUPLING
General Description:
TDA8174Aand TDA8174AWare a monolithic integrated circuits. It is a full performance and very efficient vertical deflection
circuit intended for direct drive of a TV picture tube in Color and B & W television as well as in Monitor and Data displays.
PINNING
1. POWER OUTPUT
2. OUTPUT STAGE Vs
3. TRIGGER INPUT
4. HEIGHT ADJUSTMENT
5. VOLTAGE REF DECOUPLING
6. GROUND
7. RAMP GENERATOR
8. BUFFER OUTPUT
9. INVERTING INPUT
10. Vs
11. FLYBACK GENERATOR