Toshiba 29VH27D, Service Manual

Page: 66 / 158

5
K9356M:
Standard
B/G, D/K, I, L
Features
TV IF audio filter with pass band for sound carriers at 32,40 MHz (D/K, L), 32,90 MHz (I) and 33,40 MHz
(B/G)
Terminal and Pin configuration are the same with K3953M
K9656M:
Standard
B/G, D/K, I, L/L’
Features
TV IF audio filter with two channels
Channel 1 (L’) with one pass band for sound carriers at 40,40 MHz (L’) and 39,75 MHz (L’- NICAM)
Channel 2 (B/G, D/K, L, I) with one pass band for sound carriers between 32,35 MHz and 33,40 MHz
Terminal and Pin configuration are the same with K3953M
14.IC DESCRIPTIONS
TDA6109 27W401
24LC32 SDA5275
DRAM 4MX4 SDA9400
LM317T DDP3310
SDA5550 TEA6415
VPC3230D TDA1308T
MSP3411G TL431
TDA9885/86 LM7808
TDA8177F LM1086
MC44608 TCET1102G
TDA7480L SAA3010T
14.1.TDA6109
14.1.1.General Description
The TDA6109JF includes three video output amplifiers in one plastic DIL-bent-SIL 9-pin medium power
(DBS9MPF) package (SOT111-1), using high-voltage DMOS technology, and is intended to drive the three
cathodes of a colour CRT directly. To obtain maximum performance, the amplifier should be used with black-
current control.
14.1.2.Features
· Typical bandwidth of 9.0 MHz for an output signal of 60 V (p-p)
· High slew rate of 1850 V/ms
· No external components required
· Very simple application
· Single supply voltage of 200 V
· Internal reference voltage of 2.5 V
· Fixed gain of 51
· Black-Current Stabilization (BCS) circuit
· Thermal protection
14.1.3.Pinning
SYMBOL PIN DESCRIPTION
V
i(1)
1 inverting input 1
V
i(2)
2 inverting input 2
V
i(3)
3 inverting input 3
GND 4 ground (fin)
I
om
5 black current measurement output
V
DD
6 supply voltage
V
oc(3)
7 cathode output 3
V
oc(2)
8 cathode output 2
V
oc(1)
9 cathode output 1