akira 29WHP3/ANZ User manual

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Model No: 29WHP3ANZ
Version 1.0
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Model No: 29WHP3ANZ
Version 1.0
CONTENT
THE MAIN CHIPS TDA9384/ TDA9363 ............................................................................................... 4
SIGNAL PROCESS ................................................................................................................................. 7
THE HORIZONTAL AND VERTICAL CIRCUIT ................................................................................ 8
POWER SUPPLY .................................................................................................................................... 9
FACTORY MODE................................................................................................................................. 10
APPENDIX ............................................................................................................................................ 14
CIRCUIT DIAGRAM............................................................................................................................ 20
EXPLODED VIEW AND PART NAME .............................................................................................. 22

4
Model No: 29WHP3ANZ
Version 1.0
THE MAIN CHIPS TDA9384/TDA9363
The UOC (“Ultimate One Chip”) TDA9363 is adopted in this chassis. This IC is the first available
component that contains the complete control and small signal functionality needed for a TV
application in one device.
1. The UOC TDA9363 pins function description: (total 64 pins）
Pin1: Standby control,“1” is on,“0”is off.
Pin2: SCL.
Pin3: SDA.
Pin4: Tuning PWM output.
Pin5: Auto AV control SW, connected with the SCART2’s 8th pin.
Input. The rising edge or the falling edge operates.
Pin6: Key board input.
Pin7: Mute control, “1” is mute, “0”is off.
Pin8: CTL, the earth magnetic field rectification output.
Pin9: Pin12, Pin18, Pin30, Pin35, Pin41, Pin55: GND.
Pin10:
LED, the lamp control output.
“1” is on standby, the lamp is light,
“0” is turn-on. The lamp is dim.
Pin11: RELAY, control the K701,“1”is degaussing,“0”is not.
Pin13: SECAM PLL connected with a capacitance.
Pin14: +8V power source supply
Pin15:
Using a capacitor of 220n in series to GND, This pin decouples the internal digital supply
voltage of the video processor and minimizes the disturbance to the sensitive analogue
parts.
Pin16: PHI-2 control loop, this pin requires a capacitor at 2.2nF (C) in series to GND.
Pin17:
PHI-1 control loop, the loop filter connected to pin 17 is suitable for various signal
conditions like strong/weak and VCR signal. This is achieved by switching of the loop
filter time constant by changing the PHI-1 output current.
Pin18: GND.
Pin19:
Bandgap decoupling, the bandgap circuit provides a very stable and temperature
independent reference voltage. This reference voltage (4.0 V) ensures optimal
performance of the analogue video processor part of the TDA9363 and is used in almost
all functional circuit blocks.
Pin20: East-west pillow signal output.
Pin21:
Pin22: Vertical drive output.
Pin23:
Pin24: IF input.
Pin25:
Reference current, This pin requires a resistor to ground. The optimal reference current is
100mA, which is determined by this resistor. The 100mA reference current should not be
changed because the geometry processor is optimised for this current.
Furthermore the output current of vertical drive and EW are proportional to this current.
Pin26: Vertical sawtooth, This pin requires a capacitor to ground of 100nF.
Pin27: AGC output. This output is used to control (reduce) the tuner gain for strong RF signals.
Pin28: Audio de-emphasis.

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Model No: 29WHP3ANZ
Version 1.0
Pin29: Sound decoupling. This pin requires a capacitor connected to ground. The pin acts as a
low pass filter needed for the DC feedback loop.
Pin30: GND.
Pin31: Sound loop filter.
Pin32: AVL filter.
Pin33: Horizontal drive signal output, needs a resistor in series to +8V.
Pin34: Sandcastle output/flyback input
Pin35: External audio input, this pin should be grounded in this chassis.
Pin36:
EHT tracking/ overvoltage protection. If something is wrong, the anode high voltage rises,
the heater voltage will rise too. When the rising voltage arrive some limit, the V406
works, the voltage of pin 36 will exceed 3.9V, the TDA9363 will stop working.
Pin37: PLL loop filter.
Pin38: CVBS output. Monitor or RF videos can be selected.
Pin39: +8V supply source.
Pin40: CVBS input
Pin42: Y signal input.
Pin43: C signal input.
Pin44: Main audio output, this pin is connected to the TDA9859.
Pin45: RGB signal input blanking.
Pin46,
Pin47,
Pin48:
RGB signal input.
Pin49: ABL. It means been current limiter input. The R410 is the control resister.
Pin50: Black current input from the CRT board.
Pin51,
Pin52,
Pin53:
RGB drive signal output to the CRT board.
Pin54: +3.3V.
Pin55: GND.
Pin56: +3.3V.
Pin57,
Pin58,
Pin59:
12MHz crystal.
Pin60: Reset, NC in this chassis.
Pin61: +3.3V
Pin62: NC.
Pin63: This pin is connected to the HEF4094, Functions expanding.
Pin64: IR signal input.

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Model No: 29WHP3ANZ
Version 1.0
2. Memory AT24C08 is an E2PROM of 8k, pins describe as follows:
Pin1,
Pin2,
Pin4,
Pin7:
GND.
Pin3,
Pin8:
+5V-1 supply.
Pin5: SDA.
Pin6: SCL.
3. HEF4094B is described as follows: （total 16 pins）
Pin1: Connected with UOC Pin63.
Pin2: SDA.
Pin3: SCL.
Pin4,
Pin5:
AV control switch output, connected to the HEF4052. Data as follows:
HEF4094B Pin5
HEF4052 Pin9
HEF4094B Pin4
HEF4052 Pin10 STATE
0 0 AV1
1 0 AV2
0 1 AV3
1 1 SVHS
Pin8: GND.
Pin11,
Pin12:
Tuner bands control output. Data as follows:
HEF4094B Pin11 HEF4094B Pin 12 Band
0 0 VHF－ L
1 0 VHF－ H
0 1 UHF
Pin14: NC.
Pin15: Control port, it is high level in this chassis.
Pin16: +5V supply.

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Model No: 29WHP3ANZ
Version 1.0
SIGNAL PROCESS
The main chip is N201 TDA9363, AV control switch HEF4052, sound process chip is TDA9859,
sound driver is N601 TDA7495S.
The TV signal inputs into the tuner (U101) from CABLE or antenna. The pin 11 and pin 12 of the
N502 are combined to select the band. The pin 4 of the N201 outputs the PWM tuning signal. The IF
video signal comes from the IF pin of the tuner. The 38.9MHz IF signal is coupled to the N101 (pre-
amplify) and then to SAWF (Z101). After processed in the SAWF, the 38.9MHz signal gets to the pin
23 and pin 24 of TDA9363. The IF circuit in TDA9363 includes such unit as the AGC amplifying
circuit, 38.9MHz oscillator, PLL video demodulator, video amplifier, IF identify circuit and AFT
circuit. The demodulated signal (CVBS) comes from the pin 38 of TDA9363, the sound signal comes
from the pin 44.
The internal CVBS signal needs norm identification then outputs from the pin 38 of TDA9363, via the
trap-wave circuit (composed of the V504, Z501, Z502, Z503, V506 and so on) feeds back to the pin 40
of TDA9363. The RGB signal comes from the pin51, Pin52, Pin53 of TDA9363, and outputs to the
CRT board.
The V901, V902 and V903 are the R、、
G B drive transistors. The V904, V905, V906, V907, V908,
V909 are the auto low bright balance level output circuit, and generate the low bright level current into
the pin 50 of TDA9363.
The internal sound signal comes from the pin 44 of TDA9363, via the coupling capacitor C224
connects to the pin 3 and 5 of TDA9859. The TDA9859 is the audio effect processor, the TDA9495S is
the driver. The TDA9859 includes bass, treble, balance, surround, effect shortcut options.

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Model No: 29WHP3ANZ
Version 1.0
THE HORIZONTAL AND VERTICAL CIRCUIT
Through Synchronous separating circuit, the video signal is divided into horizontal-Synchronizing
signal and Vertical-Synchronizing signal. The horizontal-Sync pulse coming from the pin 33 is
transferred to the horizontal-drive transistor, and will be used to drive the horizontal-transformer. The
horizontal-switch transistor is V405, it and the +B supply drives the flyback transformer to generate
the anode high voltage, the focus voltage, the screen voltage, the CRT board drive voltage 190V, the
vertical drive voltage 17V and 54V.
The East-west pillow signal comes from the pin 20 of TDA9363. The wave is amplified to modulate
the horizontal drive circuit. The amplifying circuit composed of the V401, V403, V402 and other
peripheral parts.
The vertical sawtooth wave is generated on the pin 21 and 22, and then enters the vertical output
amplifier circuit. The vertical output amplifier circuit is realized with the power amplifier IC –
TDA8351.
The TDA8351 is a 9 pins vertical deflection circuit (3 Amperes) for DC-coupled 90° or 110°deflection
systems with frame frequencies from 50 up to 120 Hz. Only a single supply voltage for the scan and a
second supply for the flyback are needed.
The vertical drive currents of TDA9363 pins 21 and 22 are connected to input pins 1 and 2 of the
TDA8351. The currents are converted into a voltage by resistor R305. Pin 2 is on a fixed DC level
(internal bias voltage, about 2.3V) and on pin 1 the drive voltage can be measured (typical 1.4 Vpp).
The outputs (pins 4 and 7) are connected to the series connection of the vertical deflection coil and
feedback resistor R306 and R308. The voltage across R306 and R308 is fed via pin 9 to obtain a
deflection current which is proportional to the drive voltage. The supply voltage for the TDA8351 is
17V at pin 3. The flyback generator has a separate supply voltage of 54V on pin 6. On pin 8 a vertical
guard signal is available. For HF loop stability a damping resistor R309 is connected across the
deflection coil.

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Model No: 29WHP3ANZ
Version 1.0
POWER SUPPLY
The IC of KA5Q1265RF is adapted in this chassis; it is the product of Fairchild. It supplies four DC
voltages, one is the +B＝＝
130V, another is Hcc 25V, the third is 27V (the sound drive voltage), the
fourth is +16V. The +16V can generate the +8V, +5V and +3.3V by the special generators.
Fig.2 The power supplies illustration.
L701
L703
VD705
VD706
VD707
VD708
C811
N
801
T801
N
802
VD810
VD811
VD812
VD813
+27V To N601
+25V To V712, T402, V404
+16V To V711
VD401
VD402
VD403
+190V To CRT board
+17V To Pin 3 of N301
+54V To Pin 6 of N301
+12V
N
804
N
805
N
803
N
703
+8V To N101, N201, N1001/2/3, CRT board
+5V
+5V-1
+3.3V To N201
To N202, N502, NA01
VD830
T401

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Model No: 29WHP3ANZ
Version 1.0
FACTORY MODE
SC-1033 UOC factory menu 1 Value Description M
PARA5/6 (50H/60H) 31 Parallelogram #
BOW5/6 (50H/60H) 31 Bow #
HPS5/6 (50H/60H) 31 Horizontal center #
WID5/6 (50H/60H) 31 Width #
DPC5/6 (50H/60H) 31 Parabola #
UCNR5/6 (50H/60H) 31 Up-corner #
LCNR5/6 (50H/60H) 31 Low-corner #
KEY5/6 (50H/60H) 31 Trapezium #
SC-1033 UOC factory menu 2 Value Description M
VLIN5/6 (50H/60H) 31 Vertical linearity #
HIT5/6 (50H/60H) 31 Vertical amplitude #
VSC5/6 (50H/60H) 31 Vertical S-correction #
VP50/60 (50H/60H) 31 Vertical center #
OSDV5/6 (50H/60H) 31 OSD vertical position #
VX 30 Vertical amplify
L
RCUT 31 #
GCUT 31 #
SC-1033 UOC factory menu 3 Value Description M
RDRV 31 #
GDRV 31 #
BDRV 31 #
WBBRI 31 L
WBCON 60 L
LANG 4 OK language option
L
YDFP 7 Y-delay: SECAM/PAL/NTSC individually L
AGC 28 L