JPS6210976A - pocketable television receiver - Google Patents

Abstract

PURPOSE:To make assembly easy by connecting a tuner unit, a linear unit and a chassis by a flexible cable and connecting a power source circuit unit, a display unit and a linear unit by another flexible cable. CONSTITUTION:A circuit device is divided into a display unit a, a power source circuit unit B, a linear unit C, a tuner unit D and a chassis unit E. The display unit A is placed in front of the chassis unit E, and the tuner unit D, linear unit C and power source circuit unit B are arranged on the back of the chassis unit E. The tuner unit D, linear unit C and chassis unit E are connected by a flexible cable 204, and the power source circuit unit B, display unit A and linear unit C are connected by another flexible cable 203. Thus the connection of each unit can be made simple, a television receiver can be assembled easily.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] This invention relates to a pocketable television receiver.

[Technical background of the invention and its problems] In recent years, panel-type image display devices such as dot matrix display type liquid crystal display/mother panel and electroluminescent display i4 panel have been used as display devices for television images. Along with this, it has become possible to make television receivers smaller and more portable.

However, in conventional television receivers of this type, all of the circuit devices necessary for the television receiver are built into a single circuit board. The smaller the size of the television receiver, the more crowded the circuits become, and the mounting of circuit components and the routing of leads to connect each circuit becomes a national problem.Therefore, reducing the size of a television receiver to a size that fits in a pocket is difficult in terms of assembly. It was considered extremely difficult.

[Purpose of the Invention] This invention was devised by the inventor in view of the above-mentioned circumstances, and its purpose is to
To provide a pocketable television receiver which is easier to assemble than a portable television receiver.

[Summary of the invention] That is, the blur of this invention, tuple television.

A television receiver includes a circuit device necessary for a television receiver, a tuner unit equipped with a television tuner, and amplifies and detects the intermediate frequency tuned by the television tuner, and outputs a video signal, an audio signal, and a synchronization signal. A linear unit equipped with a linear circuit for producing a 3D image, a display unit equipped with a flannel-shaped image display device and a display drive device for driving this image display device, a power supply circuit unit, and a tuning knob and a volume adjustment knob. Each of these units is housed in a case, and the display unit is placed on the front side of the chassis unit, and the tuner unit, linear unit, and power supply circuit unit are placed on the back side of the chassis unit. In addition, the tuner unit, linear unit, and chassis unit are connected by one flexible cable.

The power supply circuit unit, display unit, and linear unit are connected by another flexible cable, and according to the present invention, since the circuit device of the television receiver is separated into each unit, each You can assemble a television receiver simply by assembling each unit individually, connecting these units and storing them in a case, or by arranging each unit as shown above to create a tuner unit and a linear unit. Since the Oyohi chassis unit is connected with one flexible cable, and the power supply circuit unit, display unit, and linear unit are connected with another flexible cable, it is easy to use two flexible cables to connect each unit. Therefore, connecting each unit is easy.

(TV), the receiver can be easily assembled.

[Embodiments of the invention] An embodiment of the present invention will be described below with reference to the drawings.

Figure 2 shows the external appearance of the Boketsutanor television receiver. In the figure, 10 is a receiver case, and on the front of this case 1o are a television image display window 12 and a sound emitting part 13. is provided.

Note that a glass plate 14 is attached to the display window 12,
The sound emitting portion 13 is provided with a large number of small holes 15°15 for sound emitting. Further, on the upper edge side of the case 1o, a slide switch operation knob 16 that serves as a power switch and a VHF-UHF changeover switch is provided, and as shown in FIG. The external power connection port 17 and external antenna (e.g. outdoor antenna) connection port 18 used when using the DC power supply (battery sold as an accessory for this television receiver), and the hand strap ( A latching hole 19 for a lanyard is provided. Although not shown, the hand strap has a latching fitting that is removably latched onto a bottle 20 provided in the hand strap latching hole 19.

Next, the internal configuration of this television receiver will be explained.

First, the circuit configuration of the television receiver shown in FIG. 4 will be explained. In this television receiver,
The circuit board is divided into an antenna board 100, a knob board 110, a linear board 120, a power supply circuit board 130, a display drive control circuit board 14o, and a display drive circuit board 150, and the circuits described below are configured on each board 100 to 150. There is. In addition to the above 6 boards 100 to 150, a tuner 16o1 speaker 170, a /f channel type image display device Jjtl 80
is provided. Said flannel-shaped image display device 180
For example, a dot matrix liquid crystal display panel or an electroluminescent display panel is used. In this embodiment, an electroluminescent (EL) illumination panel 182 is stacked on the back side of a dot matrix liquid crystal display panel 181 for illumination. Furthermore, the dot matrix liquid crystal display channel 181 is of a double matrix type with a display dot count of 120 x 160, and is a TN (twisted nematic) driven at a data rate of 1/65.6. I am using a mold. The reason for using this liquid crystal display panel 181 will be described later.

A rod antenna 21 provided in the receiver and an external antenna connection jack are connected to the antenna board 100. and.

Television radio waves received by the μrad antenna 21 or an external antenna are sent to the tuner 160. Further, the knob board 110 is provided with a tuning knob 61 for selectively operating television radio waves,
The operation signal is sent to a circuit configured on the linear board 120. The linear board 120 includes a tuner power supply circuit 121, a tuning control circuit 122, and a filter circuit 1.
23. Linear circuit 124. An audio amplification circuit 125 is provided. The tuning control circuit 122 provides a tuning signal to the tuner 160 in accordance with the operation signal from the tuning knob 61. This tuner 160 selects the television radio waves received by the rod antenna 2 or an external antenna according to the tuning signal from the tuning control circuit 122, converts it into an intermediate frequency, and outputs it to the filter circuit 123. This filter circuit 1
23 passes only the frequency component of the desired channel selected by the tuner 160 and removes the frequency component of the adjacent channel. After the linear circuit 124 amplifies the intermediate frequency signal output from the filter circuit 123,
Detects the video and separates the video signal, audio signal, and synchronization signal. The audio signal output from the above-mentioned near circuit 124 is amplified by the audio amplification circuit 125, and then sent to the speaker 1'10, where it is output as audio. Furthermore, the synchronization signal output from the linear circuit 1114 is connected to the power supply circuit board IS.

The video signal and synchronization signal are sent to a circuit configured on the display drive control circuit board 140. The power supply circuit board 130 includes a power supply circuit 131 and an E circuit board 130.
An L drive circuit 132 is provided, and a power supply circuit 131 supplies an operating voltage to the tuner power supply circuit 121 and a display drive power supply circuit 144, which will be described later. Further, the EL drive circuit 132.

A synchronizing signal from the linear circuit 124 supplies a light emission operating voltage to the electroluminescent lighting panel 182 via a communication circuit 145 formed on the display drive control circuit board 140, and a circuit configured on the display drive control circuit board 140. The switching signal is increased to 4. The display drive control circuit board 140 includes an analog/digital conversion circuit (
(hereinafter referred to as A/D converter) i41. An auto level control circuit 142, a display drive control circuit 143, and a display drive power supply circuit 144 are provided. The output voltage of the display drive power supply circuit 144 is controlled ON/OFF by a switching signal from the EL drive circuit 132, and the output voltage is applied to the display drive control circuit 143 and the display drive circuit board 150. It is supplied to the drive circuit 151 as an operating power source. The auto level control circuit x4z detects the level of the video signal from the linear circuit 124 and sets an upper limit reference potential V□ and a lower limit reference potential VL.
is applied to the A/D converter 14. This A/D converter '141 converts the video signal from the linear circuit 124 into 4 bits from the reference potential vH1vLK.
The data is converted into six-gradation digital data and input to the display drive control circuit 143. This display drive circuit 143 operates in synchronization with the synchronization signal from the linear circuit 124, supplies a drive signal to the scanning side electrode of the dot matrix liquid crystal display i+ channel 181, and supplies the A/
The 4-pit data from the D converter 141 is output.

The display drive circuit 151 supplies a drive signal to the signal side electrode of the liquid crystal display panel 18 in accordance with the 4-bit data. Further, the power supply circuit 131 connects the display drive power supply circuit 144 of the display drive control circuit board 140 and the EL drive circuit 132 via an external pressure circuit that boosts the power supply voltage.
A voltage is supplied to the linear circuit 124 of the linear board 120.

Here, the dot matrix liquid crystal display panel 181
120x160 dots, double matrix method,
The reason why a 1/65.6 duty, TN type is used and the reason why the electroluminescent lighting panel 182 is provided on the back surface of the liquid crystal display panel 181 will be explained.

The liquid crystal display for displaying images is a twisted nematic dot matrix liquid crystal display that displays images using the display principle of the twisted nematic liquid crystal display panel that displays numbers and characters, which is used for displays such as calculators. There are two types of liquid crystal display panels: active matrix type liquid crystal display panels that use a silicon substrate with integrated switching MO8) transistors as the substrate of the liquid crystal display panel (this type of liquid crystal display panel includes a 08M type liquid crystal display panel and a dust type liquid crystal display panel).・There are host-type ones and those using a host-type one. Comparing these two types of liquid crystal display panels, the active matrix type is superior in terms of display contrast, but the active matrix type uses a silicon substrate, which limits the size of the panel, and it is also expensive. Twisted nematic dot matrix liquid crystal display panels are advantageous for display gray in liquid crystal television receivers, which require a relatively large screen and are also required to be inexpensive.

On the other hand, television in Japan uses a system that sends one screen every 1/30 seconds, and has 525 scanning lines, of which approximately 480 are actually effective. Furthermore, current television signals are sent by 1/2 screen every 1760 seconds. Therefore, to display a television image on a dot matrix liquid crystal display panel, 240 scanning side electrodes are required, and since the aspect ratio of the television screen is 3:4, the required display dots are The number is 24
It is 0x320.

However, the ultra-compact liquid crystal display panels used in blurry television receivers can display only 240 x 320 dots.
It is almost impossible to do so.

Therefore, a liquid crystal display panel for an I-ketable television receiver has half the number of dots, 120×160.
Television images are displayed using dots, and even with this number of dots, a satisfactory image can be displayed if the screen size is about 3 inches.

Furthermore, regarding scanning driving, if 120 scanning electrodes are sequentially driven, the selection time for one scanning electrode is too short, making it difficult to operate the liquid crystal reliably.

Next, divide the 120 scanning side electrodes into 60 electrodes each.
It is conceivable to drive each of the 60 scanning side electrodes in each block of the upper half and lower half of the screen, respectively.
If the scanning side electrodes are divided into two blocks in this way, if the scanning side electrodes on the upper and lower sides are driven at the same time, when the signal side electrodes are driven by the video signal on the half screen side, the other side of the screen Since the display will operate even on the half side of the screen, in reality, when the video signal for the upper half of the screen comes, the drive signal of the scanning side electrode for the lower half is held in memory, and the video signal for the lower half is stored in the memory. When this happens, it is necessary to drive the lower half scanning side electrodes using a memory signal, which complicates the circuit configuration for display driving.

Therefore, they came up with a method called the double matrix method (sb).In this double matrix method liquid crystal display panel, the width of the scanning side electrode is the width of two display dots, and the width of each scanning side electrode is the width of two display dots. Since the two signal-side electrodes are opposed to each other in the direction, if the double matrix method is used, the number of scanning-side electrodes and the number of scanning lines can be reduced to 60, which is half of 120. The circuit configuration also becomes simpler. This dual matrix type liquid crystal display panel is driven for display at a duty of 1/65.5.

Moreover, the reason why the electroluminescence illumination light panel 182 is provided on the back surface of the liquid crystal display panel 181 is to illuminate from the back surface side of the liquid crystal display panel 4 using a high-intensity electroluminescence illumination panel. This is because even if the liquid crystal display panel 181 is a double matrix display, a bright screen with good contrast and easy-to-see images can be displayed (see the specification of Jikko No. 57-20796).

FIG. 5 shows the connections between the round can substrates 100 to 150 shown in FIG. 4, the tuner 160, and the picture display device@180. A flexible substrate 200 led out from the side of the liquid crystal display panel 140 is connected by thermocompression bonding, and a display drive circuit board 15 is connected to the terminal of the signal side electrode of the liquid crystal display panel 181.
The flexible substrates 201 and 201 led out from 0 are connected, and the lead wire 182a of the electroluminescent illumination channel 182 is connected to the communication circuit 145 (see FIG. The display drive control circuit board 140 and the display drive circuit board 150 are connected to each other by thermocompression bonding with a 7-flex cable 202. ') Moreover, the image display device 180 (liquid crystal display 9
Nell 181 and electroluminescent illumination) Nell 18
2), the display drive control circuit board 140, and the display drive circuit board 150 are connected to each other and put together as a display unit)A. Further, the power supply circuit board 130 is a single power supply circuit unit (B), and the power supply circuit board 130 is connected to the display unit through one flexible cable 2031r soldered to the connection part thereof. ) It is removably contact-connected to the display drive control circuit board 140 of A, and is fixedly connected to the linear board 120 by soldering. The linear board 120 and the chips 160 constitute a linear unit C and a tuner unit D, respectively.
It is removably contact-connected to the knob board 110 via the seven lexiple cables 204, and fixedly connected to the linear board 120 by soldering. Further, the tuner 160 and the antenna board 100 are connected to each other via a lead wire 205.

FIG. 6 shows a power supply circuit unit B made up of the power supply circuit board 130 and a linear unit C made up of the linear board 120.
This shows the arrangement positions of a tuner unit D including a tuner 160, a knob board 110, and an antenna board 100 in the receiver case 10.

To specifically explain the internal structure of the television receiver having the circuit configuration described above, in FIGS. 1 and 3, 101 is the front case of the receiver case 10, 10bfr is the middle case, and 10e is the back case. , 14 are glass plates attached to the image display window 12 of the front case 10 &. 21 is a rod antenna, and this rod antenna 21 is connected to the intermediate case 1.
It is inserted and stored in the antenna storage groove 46 provided on the mating surface between 0b and the back case 10@, and can be slid onto the antenna holding tube 47 screwed to the inner surface of the antenna drawer side of the back case 10@. Retained. Also,
An antenna terminal tube 49 having a stopper flange 50 at the rear end is attached to the base end of the rod antenna 2 via a hinge 48.
is attached, and as the rod antenna 21 is pulled out, the antenna terminal tube 49 is inserted into the antenna storage groove 4.
6 and is fitted into the antenna holding cylinder 47 until the stopper flange 50 touches the antenna holding cylinder 41, and is electrically connected to the antenna holding cylinder 47. Further, the antenna holding tube 47 has a terminal plate 411
It is electrically connected by contact with the antenna board 100 which is screwed together with the rear case 10a overlapping the antenna board 10a.
Furthermore, an external antenna connection jack 51 is attached to the antenna board 100 by soldering so as to face the external antenna connection port 18 on the side surface of the case. Furthermore, the hinge 48 between the rod antenna 21 and the antenna terminal tube 49 protrudes outside the case 10 as shown in FIG. Then, the angle of the nine-rod antenna 21 that is pulled out of the case 10 can be changed freely and over a wide range using the hinge 48 as a fulcrum. Further, the back side case 10e is formed with a battery chamber 52 that opens on the back side thereof, and three single-cell type batteries are housed side by side in a series-connected state in this battery chamber 52.

On the other hand, in FIG. 1, 58 is a chassis formed integrally with the intermediate case 10b, and this chassis 58 includes:
The knob board 110, the speaker 110, the tuning knob 61, and the volume adjustment knob 62 are attached to form a shear 7 unit E.

Reference numeral 171 denotes a buffer body provided above and below the speaker 170; p1 the speaker 110 is housed in a speaker storage portion 59 formed in the chassis 58, and is held down by fasteners 60 and 60 screwed to the chassis 58; .

FIG. 7 shows the assembled chassis unit E. The chassis 58 has the tuning knob 61 and the ? The dial section of the tuning dial 63 is connected to the tuning knob 63, the speaker 17o, the tuning dial 63, and the thread hook 1764.
1 through the thread 65. Further, the thread 65 is connected to a thread hook pulley 64°6.
4 and arranged as shown in the diagram, this thread 65
A channel selection guide 66 is attached to the.゛Nao 6
Reference numeral 1 denotes a guide for the pointer 66, which is integrally formed with the chassis 58. In addition, the above & volume adjustment knob 6
The terminal 62m of the tuning dial C3 and the terminal 63h of the tuning dial C3 are soldered to the knob board 110 (not shown in FIG. 7). In addition, as shown in FIG. 1, the knob board 110 has a power switch and a VHF-U
A slider J6m of a slide switch that also serves as an HF changeover switch is in contact with it. This slider 16m is case 1
0 by an operating knob 16 provided as shown in FIG. Furthermore, in FIG. 1, 68 is an earphone jack, and this earphone jack,
It is soldered to the knob board 110 so as to face an earphone connection port (not shown) provided on a side surface of the case 10 opposite to the side surface on which the external antenna connection port 18 and the like are provided.

Further, in FIG. 1, reference numeral 69 is an external power supply connection jack provided opposite to the external power supply connection port 17 on the side surface of the case, and this jack 69 is soldered to the power supply circuit board 130.

The power supply circuit board 130, the linear board 110, and the tuner 160 are arranged on the back side of the chassis unit E as shown in FIG. 3, and the display unit A is arranged on the front side of the chassis unit E. ing.

As shown in FIGS. 8 to 11, the display unit y) A has a liquid crystal display panel 181 placed on a frame 70, and both sides of the liquid crystal display panel 181 are attached to the frame 10 with double-sided adhesive tape 71. At the same time, attach the adhesive surface -21 to the liquid crystal display panel 181 and the frame 70.
An electroluminescent lighting panel 182 is inserted between the frame 70 and four signal-side electrode driving LSIs 72m, 72b, and 72c below the frame 70.

A display drive circuit board 50 having a display drive circuit board 7jd on its surface is disposed, and one scanning side electrode drive LSI 72 is disposed on its back surface.
The display drive control circuit board 140 with @ on the back side is arranged in a stacked manner, and the flexible board 201 that is thermocompression bonded to the side of the display drive control circuit board 140 and led out from this circuit board 140 is a liquid crystal display panel. It is connected to the terminal of the scanning side electrode 181 by thermocompression bonding. Further, the display drive circuit board 150 is a flexible film board with a reinforcing plate 150a adhered to the back surface, and both sides of the film board are extended to an appropriate length from the display drive circuit 150 portion reinforced with the reinforcing plate 150a. This is used as a flexible substrate 200 for connecting a display panel. The flexible substrate 2θυ is superimposed on the terminal of the signal side electrode of the liquid crystal display panel 181 from a direction perpendicular to the flexible substrate 201 on the side of the display drive control circuit wr substrate 14θ, and is attached to the frame 70 with a set screw 74. It is connected to the terminal of the signal side electrode by the attached presser plate 73. In addition, in FIG. 8, 75 is the presser plate 7.
This is a rubber material that comes into contact with the flexible substrate contact surface of No. 3.

Further, the liquid crystal display panel 181 has its signal electrode group divided into four blocks, and the display drive circuit board 15
004 signal side electrode drive L8112 &, 72b,
The display is driven by 12a and 72tl for each block Qy. This is done for the following reasons.

That is, in this embodiment, since the dot matrix liquid crystal display panel 181 is of the double matrix type as described above, the number of signal side electrodes is 320. An LSI with a total of at least 320 + α terminals (here α is the number of terminals for inputting control signals, etc.) is required, but such multi-terminal large LSIs are expensive in Europe and general-purpose. Therefore, using a large multi-terminal LSI is disadvantageous in terms of cost. Therefore, in this embodiment, the double matrix (dot matrix liquid crystal display) armpit 181
Divide the screen into four blocks a, b, c, d of 174 each as shown in Fig. 12, and each block @, b, agd
Terminals Y1 to Y, o of the signal side electrodes.

Y1~YS0. Y,, ~Y,. . , YS, ~Y1°. and the four signal side electrode driving LSIs 72*, 72b.
, 72a.

7.? d are connected to drive each of the four liquid crystal display channels (18 channels), 174 screens at a time. In this way, the LSIs 72m, 72b, and 12a.

72d may be a small one with 100 terminals;
Since 0-pin LSIs are highly versatile and inexpensive, costs can be reduced. Also, the scanning side i! of the double matrix type dot matrix liquid crystal display channel 181! Since the number of poles is 60, the display drive control board 140
LSI 72 e for driving the scanning side electrode provided in 10
A 0-pin one is fine. FIG. 13 shows the liquid crystal display motherboard 181 and the signal side 'polarization driving LSI 72a, r.
2b, 72c, 72d and the connection state with the scanning side electrode driving L8I 72.

Also, the LSI 73m for driving the four signal side electrodes.

When 121b, 12c, and 72d are arranged on the display drive circuit board 150, in the normal mounting method, the circuit board 150
The printed wiring that connects the LSIs on the surface and the printed wiring that is connected to the signal side electrode terminal of the liquid crystal display panel 181 are mixed up, making the wiring of the printed wiring complicated, and the circuit board 1504 must be made larger. In this embodiment, as shown in FIG. 14, paired signal-side electrode driving LSIs 7 j a and 'izb and 7 J e , 7 J? d so that they are line symmetrical to each other, and further L8I 7 j b , f
/j and d are each terminals formed by positive forming and attached to the circuit board 150, and LSI Ilh.

The terminals 72c are each reverse formed and attached to the circuit board 150 in an upside-down state. In addition, in the figure 1
→20. ill→50, 11→70° 11→100 are each LSI 7ffia, 12b, 12e.

7jd terminal number is shown. If the four L8112*, 72b, 12c, and 72d are arranged in this way,
Paired LSIs 72m and 72b and 12e and'/
The common terminal 51→10 with 2a can be connected with the shortest distance printed wiring '16.7/6, so you can connect the printed wiring on the circuit board surface! It is possible to simplify the rotation and reduce the size of the circuit board 150.

FIG. 15 shows the electrical connections of the units A-IC, and the electrical connections of the units A-E are made when these units A-E are assembled into the case 10. That is, to assemble the television receiver, first set the tuner unit D, linear unit C, and power supply circuit unit B on the chassis unit E, and then connect the flexible cable 204 that was previously connected to the power supply circuit unit B. is brought into contact with the knob board 110 of the chassis unit E and fixed with the tuner 160 as shown in FIG. A third
As shown in the figure, the flexible cable 203 and the display unit A are connected by being held together, and the antenna board 100 attached to the tuner unit D and the back case 10o, and the power supply circuit unit B and the battery compartment 52 of the back case 10c are connected. Battery contact terminal provided inside (
(not shown) by soldering the lead wires 205 and 206, respectively, and then screwing the front case 1oa to the chassis 58 of the chassis unit E, and further screwing the back case 10e to the chassis 58. It is done.

However, in the case of this blur, the circuit device of the tuple television receiver IJ is divided into display unit A, power supply circuit unit B, linear unit C, tuner unit D, and chassis unit E. A television receiver can be assembled by simply assembling units) A to E individually, connecting these units and storing them in the case 10, and display unit )E is placed on the front side, and the tuner unit D, linear unit C, and power supply circuit unit)B are placed on the back side of the chassis unit E.
Tuner unit) D, linear unit C, and chassis unit) E are connected by one flexible cable 204, and power supply circuit unit B, display unit y) A, and linear unit C are connected by another flexible cable 203. Furthermore, since only two flexible cables are required to connect each unit A to E, and the connection between each unit A to E is simple, the television receiver can be easily assembled. Furthermore, in this television receiver, a flexible cable 203 connected to the power supply circuit unit B and the tuner unit D
, 204 are connected to the chassis unit () E and display unit () A only by contact without being fixed, so when repairing, the chassis unit E and display unit (A) must be separated from the tuner unit () D and the power supply circuit unit) B. Therefore, repair work can be easily performed. It should be noted that tuner unit D, power supply circuit unit y)B, power supply circuit unit)B, and rear case 10c cannot be completely separated because they are connected by lead wires 205 and 206, but the lead wires 205 and 206 If it is kept long enough, it will not interfere with repair work.

[Effects of the Invention] The pocketable television receiver of the present invention has its circuit device divided into a display unit, a power supply circuit unit, a linear unit, a tuner unit, and a chassis unit. You can assemble a television receiver by simply assembling these units, connecting these units, and storing them in a case.Also, you can assemble a television receiver by simply assembling these units and storing them in a case.Also, you can place the display unit on the front side of the chassis unit, and connect the tuner unit and linear unit. and a power supply circuit unit y) are arranged on the back side of the chassis unit, and the tuner unit, linear unit, and chassis unit are connected with one 7 lexiple cable,
Power supply circuit unit, t and display unit.

Since the knit and linear units are connected by one other flexible cable, only two flexible cables are required to connect each unit, and therefore the connection of each unit is also easy. Assembly is easy.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an exploded view of a pocketable television receiver, FIGS. 2 and 3 are external views and enlarged longitudinal sectional side views of the pocketable television receiver, and FIG. Figure 4 is a block diagram showing the receiver circuit.
Figure 5 is a connection diagram of each board shown in Figure 4, the tuner, and the liquid crystal display panel, Figure 6 is a layout diagram of the power supply circuit unit, linear unit, tuner unit, knob board, and antenna board, and Figure 7 is the chassis. An enlarged front view of a portion of the unit; FIGS. 8 and 9 are exploded views and front views of the display unit; FIGS. 10 and 11 are enlarged cross sections taken along the Y-Y line and the X-X line in FIG. 9. Figure 12 is an enlarged front view of the display motherboard, Figure 13 is a connection diagram between the display/4' channel and the display drive LSI, Figure 14 is an enlarged view of the display drive circuit board, and Figure 15. , 1 is a connection diagram of each unit. 10...Case, 10ml@front case, J Ob
-,. Intermediate case, 10e... Back case, A... Display unit, 181... Liquid crystal display i+ channel, B... Power supply circuit unit y), 130... Power supply circuit board, C... Linear unit , 120... linear board, D... tuner unit, 160... tuner, E... chassis unit, 58... shear, 61... tuning knob, □62... volume adjustment knob, 203,
204...Flexible cable.

Claims (2)

[Claims] (1) A tuner unit equipped with a television tuner, a linear unit equipped with a linear circuit that amplifies and detects the intermediate frequency tuned by the television tuner and generates a video signal, an audio signal, and a synchronization signal, and a panel-shaped image A display unit including a display device and a display drive device for driving the image display device, a power supply circuit unit, and a chassis unit including a tuning knob and a volume adjustment knob are housed in a case, and the display unit is arranged on the front side of the chassis unit, the tuner unit, linear unit and power supply circuit unit are arranged on the back side of the chassis unit, and the tuner unit, linear unit and chassis unit are connected with one flexible cable, A pocketable television receiver characterized in that the power supply circuit unit, display unit, and linear unit are connected by another flexible cable. (2) The pocketable television receiver according to claim 1, wherein the chassis unit and the flexible cable, and the display unit and the flexible cable are connected only by contact without being fixed to each other.