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Great and quick support. The maual was exactly what I was looking for and my problem
solved. Many thanks.
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Very good service Within one day i received a pdf of the users manual and electric circuits so I was able to measure the different voltages in the printed circuit and find out the fault Payment was also reliable and easy.Without the manual i could not have repaired.So thanks to "Search for a manual"
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you are doing great job guys.....my father ask me to find out the schematics of Sony KV25R1D to sort out the problem ..(he was electrical technician, and excperianced with TV and simillar stuff). finally he found the cause and change all necessary parts....now he has got working old dog..and is very happy!!... thank you all.. NB..he also saved the repair cost.
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Perfect. Received my manual within 24 hours. Clear scan of the manual I needed. No problem.
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Item as described, very well detailed manual with complete schematics. I've received the download information shortly after payment, very good support.
IC, TMP87PH47U
Pin No. 1 2 3 4 5 Pin Name KY OUT 4 KY OUT 3 KY OUT 2 KY OUT 1 FREQUENCY 1 VOL 1 VOL 1 6 7 8 9 10 11 12 13 14 15 16 17 18 19 VOL 0 KY IN 6 KY IN 5 KY IN 4 KY IN 3 KY IN 2 KY IN 1 TEST RESET XIN XOUT VSS VREF LCD RS COMBO CLK LCD RW 20 COMBO DATA EP DATA 21 22 23 24 25 26 27 28 BAT DET EP CLK LCD DB 4 LCD DB 5 LCD DB 6 LCD DB 7 COMBO STB TX DATA I O I/O I/O I/O I/O O O I/O O I I I I I I I I I O � I O VOL 0 I/O O O O O I/O Keypad column output 4 Keypad column output 3 Keypad column output 2 Keypad column output 1 1 = 25CH, 0 = 10CH 4 (Max.) 1 1 3 1 0 2 0 1 1 (Min.) 0 0 Description
Keypad column input 6 Keypad column input 5 Keypad column input 4 Keypad column input 3 Keypad column input 2 Keypad column input 1 Tied to low Normaly High, low to reset MCU Resonator in (4.0 MHz) Resonator out (4.0 MHz) Ground A/D Reference voltage input (3.0V) LCD Control (Resister select Combo chip CLOCK LCD Control (0 = Write, 1 = Read) Combo chip DATA EEPROM DATA Battery voltage input EEPROM CLOCK LCD DATA 4 LCD DATA 5 LCD DATA 6 LCD DATA 7 Combo chip STB Transmitted DATA Received Signal Strength Indicator 0 = Instruction resister, 1 = Data resister)
29
SIG OUT
I
0 = Carrier present, 1 = Carrier absent 0 = RX unlock, 1 = RX lock 0 = TX unlock, 1 = TX lock
30 31 32 33 34
CHG DET RX DATA TX PWR BPTONE RX PWR
I I O O O
Charger detect 1 = Charging, 0 = Not charging Received DATA TX Power control 0 = ON, 1 = OFF Buzzer signal RX Power control 0 = ON, 1 = OFF
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