Before assuming the tuner is faulty, understand the symptoms. Many issues may actually stem from the main board or software.
Definite tuner failure signs:
What is NOT a tuner issue:
If the TV fails only on antenna input, the TP P04 tuner is prime suspect.
Q: Can I use a TP P04 tuner from a different brand?
A: Possibly, but the firmware (the TV’s software) talks to the tuner via I²C. If the I²C address or register map differs, the TV may fail to recognize it. Stick to 1220 00 00011 exactly.
Q: My TV has “TP P04 1220 00 00011 Full” but also a “1Z” marking. Same thing?
A: Yes. Some manufacturers use “1Z” where “12” is intended (stylized printing). “1Z2000011” is the same part. tuner tv tp p04 1220 00 00011 full
Q: Will this tuner work for digital cable (QAM) or only over-the-air?
A: That depends on your TV’s firmware. The hardware tuner can demodulate QAM, but the TV’s menu must include “Cable” scanning mode. The TP P04 supports up to 256 QAM.
Q: The new tuner fixed channels, but picture quality is poor.
A: Check your antenna and cable first. If the issue persists, the tuner’s AGC circuit may differ slightly. Some Full tuners need a software alignment via the service menu. Enter service mode (often “Menu + 1147” on TCL) and run the “Tuner AGC Auto” routine.
Based on crowd-sourced repair forums (Badcaps, ElektroTanya, RepairFAQ), a tuner code TP P04 or similar appears in:
If your TV chassis number (on a sticker near the inputs) contains 17MB, 17IPS, 17PW, it is likely compatible.
⚠️ Always verify by opening the TV and reading the actual sticker on the tuner can. It will say something like:
TP-P04-1220-00-00011orTUNER TP P04 1220 FULL. Before assuming the tuner is faulty, understand the symptoms
Because tuner tv tp p04 1220 00 00011 full is niche, you won’t find it on Amazon or Best Buy. Try these specialized sources:
This is a multi-standard hybrid tuner (analog + DVB-T/DVB-C). It typically has 10 to 12 pins on a single in-line header.
Common pinout (from Alps TFTC series, which "TP" resembles):
| Pin | Signal | Description | |-----|--------|----------------| | 1 | AGC | Automatic Gain Control (analog RF input) | | 2 | NC | No connection | | 3 | VT | Tuning voltage (0.5–30V) | | 4 | GND | Ground | | 5 | SCL | I²C clock (from main processor) | | 6 | SDA | I²C data | | 7 | +5V | Supply voltage (usually 5V or 3.3V) | | 8 | +33V | For analog varicap tuning (some models) | | 9 | IF OUT | Analog IF output (to demodulator) | | 10 | GND | Ground | | 11 | TS OUT | Transport stream output (digital) | | 12 | NC | No connection |
Your P04 variant likely combines IF and TS outputs, or uses a single +5V rail. What is NOT a tuner issue:
To get exact pinout: search for datasheet of Alps TU-S series or Sharp TU-S series with "P04" in the suffix.
If the code relates to satellite transponder settings:
Many P04 tuners have a single in-line (SIL) or dual in-line 12–14 pin header. A typical pinout:
| Pin | Name | Description | |-----|----------|-------------------------------------| | 1 | AGC | Automatic Gain Control (from main IC) | | 2 | VT | Tuning voltage (0–33V from DC-DC) | | 3 | SCL | I²C clock (from TV processor) | | 4 | SDA | I²C data | | 5 | +5V | 5V supply | | 6 | GND | Ground | | 7 | IF_OUT | Intermediate Frequency output (video IF) | | 8 | NC | Not connected | | 9 | SW | Band switching (0V/5V for VHF/UHF) | | 10 | +33V | Tuning supply (some models internal)| | 11 | AUDIO_IF | Sound IF output |
⚠️ Do not guess +33V pin – applying 33V to the wrong pin destroys the tuner.